The document discusses the "querelle" or debate between network science and the new social physics. It notes that the new social physics revisited ideas like small world theory and identified networks exhibiting "small worldliness," but were criticized for lacking sociological perspective. Watts argued small world networks can emerge from random ties between nodes, but others like Granovetter and Barabasi showed real networks have non-random structures. The document argues the small world thinkers overlook sociological factors like meaning, social relations, and inequality. It notes a problem for sociology of science as the physicists do not cite foundational work in social network analysis.
1) The document discusses the emerging field of network science and how it applies to social networks and their behavior on the internet.
2) Key concepts in network science like weak ties, small world networks, and preferential attachment help explain viral spread of information and ideas (memes).
3) The low transaction costs of online social networks allow for easy collective action, coordination, and decision making at a scale not previously possible.
Intro to social network analysis | What is Network Analysis? | History of (So...Gaditek
Social network analysis examines the connections between individuals, groups, organizations, or other social entities. It focuses on interactions rather than individual behavior. Network analysis can be applied across many disciplines to study how the structure of relationships influences functioning. Early research in fields like sociology, anthropology, and educational psychology helped develop concepts still used today, such as examining homophily and interaction patterns. Key concepts in network analysis include nodes, edges, degree, clustering coefficients, and graph diameter. "Small world" networks are highly clustered with short path lengths, characteristics seen in many real-world networks. Social capital research also examines how network connections impact groups, organizations, and individuals.
This document discusses the history and challenges of network visualization. It outlines James Moody's presentation on the topic, which traces the evolution of network visualization from Euler's early work to modern approaches. Key challenges discussed include determining which social space to represent, how to handle multidimensional data, and dealing with issues of scale and density in large networks. The document argues that visualization allows researchers to gain insights that metrics alone cannot provide, by making the invisible visible and communicating complex features effectively.
1. The document discusses relational sociology, which views social relations as the most important concept and analysis unit. It focuses on the works of key figures in relational sociology like Harrison White and John Levi Martin. 2. White developed concepts like identity, footing, switchings, and netdoms to analyze social phenomena through a network lens. Martin advocated field theory and heuristics to understand subjective social structures. 3. Relational sociology is compared to analytical sociology, with both sharing a focus on processes but differing in their units of analysis - relations versus actions.
This document discusses network data collection. It begins by providing examples of how social structure matters and influences outcomes. It then discusses different ways to detect social structure through network data collection, including small group questionnaires, large surveys, observations, and digital data scraping. The document outlines key network questions that can shape data collection, such as how networks form and their consequences. It also discusses sampling and defining network boundaries. Overall, the document provides an overview of network data collection methods and considerations.
This document discusses community detection in networks. Community detection aims to identify tightly knit groups within networks. The document outlines popular community detection algorithms like modularity maximization and stochastic block models. It also discusses applications of community detection to multilayer networks and examples like congressional voting networks and Facebook networks. Community detection is a useful tool for exploring network structure and identifying essential features in data.
Networks & Health
This document provides an introduction and overview of social network analysis and its relevance to health research. It discusses key concepts such as what networks are, different types of network data including one-mode and two-mode data, and different levels of analysis including ego networks, partial networks, and complete networks. The document also discusses why networks matter for health through connectionist mechanisms like diffusion and positional mechanisms like social roles. Overall, the document serves as a high-level introduction to social network concepts and their application to health research.
The document discusses several reviews and responses related to theories of networks. It covers topics like how networks are used for control and surveillance. One review discusses the book "The Exploit" which analyzes networks and how their flaws can be exploited for change. The authors respond that networks should also be viewed as post-human and beyond human control. They raise questions about the ontology of networks and how humans should relate to increasingly technological systems.
1) The document discusses the emerging field of network science and how it applies to social networks and their behavior on the internet.
2) Key concepts in network science like weak ties, small world networks, and preferential attachment help explain viral spread of information and ideas (memes).
3) The low transaction costs of online social networks allow for easy collective action, coordination, and decision making at a scale not previously possible.
Intro to social network analysis | What is Network Analysis? | History of (So...Gaditek
Social network analysis examines the connections between individuals, groups, organizations, or other social entities. It focuses on interactions rather than individual behavior. Network analysis can be applied across many disciplines to study how the structure of relationships influences functioning. Early research in fields like sociology, anthropology, and educational psychology helped develop concepts still used today, such as examining homophily and interaction patterns. Key concepts in network analysis include nodes, edges, degree, clustering coefficients, and graph diameter. "Small world" networks are highly clustered with short path lengths, characteristics seen in many real-world networks. Social capital research also examines how network connections impact groups, organizations, and individuals.
This document discusses the history and challenges of network visualization. It outlines James Moody's presentation on the topic, which traces the evolution of network visualization from Euler's early work to modern approaches. Key challenges discussed include determining which social space to represent, how to handle multidimensional data, and dealing with issues of scale and density in large networks. The document argues that visualization allows researchers to gain insights that metrics alone cannot provide, by making the invisible visible and communicating complex features effectively.
1. The document discusses relational sociology, which views social relations as the most important concept and analysis unit. It focuses on the works of key figures in relational sociology like Harrison White and John Levi Martin. 2. White developed concepts like identity, footing, switchings, and netdoms to analyze social phenomena through a network lens. Martin advocated field theory and heuristics to understand subjective social structures. 3. Relational sociology is compared to analytical sociology, with both sharing a focus on processes but differing in their units of analysis - relations versus actions.
This document discusses network data collection. It begins by providing examples of how social structure matters and influences outcomes. It then discusses different ways to detect social structure through network data collection, including small group questionnaires, large surveys, observations, and digital data scraping. The document outlines key network questions that can shape data collection, such as how networks form and their consequences. It also discusses sampling and defining network boundaries. Overall, the document provides an overview of network data collection methods and considerations.
This document discusses community detection in networks. Community detection aims to identify tightly knit groups within networks. The document outlines popular community detection algorithms like modularity maximization and stochastic block models. It also discusses applications of community detection to multilayer networks and examples like congressional voting networks and Facebook networks. Community detection is a useful tool for exploring network structure and identifying essential features in data.
Networks & Health
This document provides an introduction and overview of social network analysis and its relevance to health research. It discusses key concepts such as what networks are, different types of network data including one-mode and two-mode data, and different levels of analysis including ego networks, partial networks, and complete networks. The document also discusses why networks matter for health through connectionist mechanisms like diffusion and positional mechanisms like social roles. Overall, the document serves as a high-level introduction to social network concepts and their application to health research.
The document discusses several reviews and responses related to theories of networks. It covers topics like how networks are used for control and surveillance. One review discusses the book "The Exploit" which analyzes networks and how their flaws can be exploited for change. The authors respond that networks should also be viewed as post-human and beyond human control. They raise questions about the ontology of networks and how humans should relate to increasingly technological systems.
Ego network analysis measures relationships between an individual (ego) and their social contacts (alters). Common measures include degree (number of alters), tie strength, multiplexity (overlap in tie functions), and alter attributes like composition, similarity to ego, and heterogeneity. Measures of relationships between alters, like density and structural holes, provide information on network constraints and opportunities. Proper data management is required to store ego, alter, and alter-alter relationships.
This document provides an overview of social networks from a sociological perspective. It discusses social networks at the micro, meso, and macro levels of analysis and outlines several theoretical approaches and research areas within social network analysis, including structural holes, diffusion of innovations, organizational studies, and social media networks. Network science concepts like small-world networks, scale-free networks, and centrality metrics are also summarized.
This document discusses network visualization and its history. It begins with a brief overview of early network diagrams created by Euler, Morgan, and Moreno. Moreno's sociograms in the 1930s helped transform social science by making social networks visible. The document then discusses challenges in network visualization, including balancing data, research problems, and image quality. It also covers why visualization is still useful when metrics exist, and principles for effective scientific visualization like communicating new insights and being replicable. Finally, it discusses layout heuristics and secondary style elements that impact network diagrams.
This document provides a history of network visualization from its origins in the 18th century to modern applications. It discusses:
- Early work by Euler and kinship diagrams that relied on visual representations to study networks.
- J.L. Moreno's sociograms in the 1930s that sparked interest in social network analysis through visualizations.
- Developments through the 20th century as researchers sought to move from artistic to more scientific visualizations.
- Challenges of visualizing large, complex networks while representing multiple node and edge attributes simultaneously.
- Benefits of visualization in making invisible network structures visible and providing multi-dimensional insights beyond metrics alone.
04 a knotting the small world with gatekeepersWesley Shu
This document discusses the "caveman" social structure of cohesive clusters connected by bridging connections. It describes how cohesive clusters can enhance the development of homogeneous ideas but also risks groupthink. Gatekeepers who bring in new information from bridging connections can counteract insularity. Examples are given of industries like furniture design in Lombardy, Italy that benefited from strong connections between components like schools and manufacturers. The world is described as smaller due to ease of talent and information movement, so companies should focus on maximizing information inflow through the use of gatekeepers.
Network Data Collection
The document discusses collecting social network data. It covers three main topics:
1) Introduces social network analysis and why networks are important in social science. Networks matter because of connections that allow diffusion and because positions in networks influence roles and behavior.
2) Discusses research design considerations for collecting network data, including specifying relations of interest based on theoretical mechanisms, boundary selection, and sampling approaches.
3) Addresses accuracy of network survey data and how to handle inaccurate or missing data. The goal is to systematically understand connections between actors using empirical network data and analysis methods.
This document summarizes three types of field experiments related to social networks:
1) Peer effects experiments examine whether individual j influences the behaviors or outcomes of individual i. Examples test whether encouraging individual i to vote or buy a product also influences their friend j.
2) Network formation experiments study what factors affect whether individual i forms a network tie with individual j. Examples test how anonymity, search costs, and interactions affect network tie formation.
3) Designing networks experiments evaluate which network structures maximize outcomes at the network level. Examples design peer groups and seed farmers to test how network structure impacts behavior diffusion.
The science of networks is becoming an increasingly important and intriguing area of study that reveals many a patterns and relationships often hidden. This presentation is about the use of SNA to study the network of the Digital Library Community
This chapter will introduce you to the field of science known as Network Theory and tell you about the major researches that took place since its conceptualization. Since the course in question is social computing the chapter is written in a way to give examples and illustrations which mostly relate to social computing. It also contains theories and information which are mostly related to network theory and have some or no relation to social computing. But the basic purpose of this chapter is to explain Network theory and its applications in the field of social computing.
Networks provide connections and positions that influence health outcomes. Social network analysis examines relationships between actors to understand how networks impact behavior. Networks matter through both connectionist mechanisms like diffusion, and positional mechanisms like social roles. Network data can be analyzed at different levels from individual ego networks to global networks, and can involve one or multiple types of relationships between nodes. Social network data is commonly represented through matrices and lists to encode network structure and allow computational analysis.
This document summarizes open problems and future directions in the field of social networks and health. It identifies key areas for methodological development including dynamic diffusion models, improved community detection techniques, and understanding triadic network structures. Important theoretical advances involve modeling multiplex and evolving networks over time as well as better understanding social mechanisms linking networks to health. Future data collection should incorporate electronic traces, return to community-based studies, and develop national samples capturing full network contexts.
The document announces a virtual conference to be held in Second Life on the sociological significance of virtual worlds. It includes an agenda with multiple sessions and presentations on topics like social networking sites, video games, virtual worlds, and using virtual spaces for education. Presenters will discuss issues like surveillance and social networks, women's experiences in online gaming, disabilities and gaming, conducting research in virtual environments, and exploring virtual spaces as participatory pedagogy.
A Perspective on Graph Theory and Network ScienceMarko Rodriguez
The graph/network domain has been driven by the creativity of numerous individuals from disparate areas of the academic and the commercial sector. Examples of contributing academic disciplines include mathematics, physics, sociology, and computer science. Given the interdisciplinary nature of the domain, it is difficult for any single individual to objectively realize and speak about the space as a whole. Any presentation of the ideas is ultimately biased by the formal training and expertise of the individual. For this reason, I will simply present on the domain from my perspective---from my personal experiences. More specifically, from my perspective biased by cognitive and computer science.
This is an autobiographical lecture on my life (so far) with graphs/networks.
The document discusses community detection in networks and multilayer networks. It begins with an introduction to community detection, how to calculate communities using various algorithms, and the importance of resolution parameters. It then provides a short introduction to multilayer networks and examples of community detection applied to real-world networks, including social networks, protein interaction networks, and legislative voting networks. The key points are that network representations provide a flexible framework for studying complex data, community detection is a powerful tool for exploring network structures, and network structures can identify essential features for modeling and understanding data applications.
01 Introduction to Networks Methods and Measuresdnac
This document provides an introduction to social network analysis. It discusses how networks matter through two fundamental mechanisms: connections and positions. Connections refer to the flow of things through networks, viewing networks as pipes. Positions refer to relational patterns and networks capturing role behavior, viewing networks as roles. The document also covers basic network data structures including nodes, edges, directed/undirected ties, binary/valued ties, and different levels of analysis such as ego networks and complete networks. It provides examples of one-mode and two-mode network data.
Community Evolution in the Digital Space and Creation of SocialInformation C...Saptarshi Ghosh
A social homogeneous group can be formed irrespective to geo-spatial contiguity and research reveals that interaction through online communication fosters social behaviours like teamwork, ties, bonding and trust building as well as community building.
This document discusses considerations for collecting social network data through surveys. It addresses research design elements like defining the relevant population boundaries and sampling approaches. For surveys specifically, it covers informed consent, name generator questions to identify social ties, response formats, and balancing depth of network detail collected versus sample size. The key challenges are defining the theoretical population of interest, collecting a sufficiently large and representative network sample, and designing survey questions that accurately capture social ties within time and resource constraints.
This document summarizes key concepts for describing networks, including centrality measures, connectivity, cohesion, and roles. It discusses measuring the importance of individual nodes through degrees, closeness, betweenness, and power centrality. It also covers sociocentric measures like degree distributions, centralization, and density. Additionally, it explores local connectivity through triads, transitivity, and clustering coefficients as well as structural cohesion through components and cut points.
This document provides a high-level overview of social network analysis as a field of study. It discusses three main ways of looking at social reality - as categories, groups, or networks. It also summarizes key concepts in social network analysis including nodes, ties, whole network analysis, personal network analysis, and multilevel analysis. Finally, it discusses changes in social connectivity from traditional groups to modern networked individualism enabled by new communication technologies.
This document provides biographical information about Nelson Mandela. It states that his given name was Rolihlahla Mandela, but he was also known as Nelson, which was given to him by his teacher. It outlines key events in Mandela's life including being born in 1918 in South Africa, becoming a lawyer and the leader of the African National Congress party, being imprisoned for 27 years for opposing apartheid, and eventually being elected as South Africa's first black President in 1994 after apartheid ended. The document also mentions Mandela's philosophies of non-violence and dignity that were inspired by Gandhi.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Ego network analysis measures relationships between an individual (ego) and their social contacts (alters). Common measures include degree (number of alters), tie strength, multiplexity (overlap in tie functions), and alter attributes like composition, similarity to ego, and heterogeneity. Measures of relationships between alters, like density and structural holes, provide information on network constraints and opportunities. Proper data management is required to store ego, alter, and alter-alter relationships.
This document provides an overview of social networks from a sociological perspective. It discusses social networks at the micro, meso, and macro levels of analysis and outlines several theoretical approaches and research areas within social network analysis, including structural holes, diffusion of innovations, organizational studies, and social media networks. Network science concepts like small-world networks, scale-free networks, and centrality metrics are also summarized.
This document discusses network visualization and its history. It begins with a brief overview of early network diagrams created by Euler, Morgan, and Moreno. Moreno's sociograms in the 1930s helped transform social science by making social networks visible. The document then discusses challenges in network visualization, including balancing data, research problems, and image quality. It also covers why visualization is still useful when metrics exist, and principles for effective scientific visualization like communicating new insights and being replicable. Finally, it discusses layout heuristics and secondary style elements that impact network diagrams.
This document provides a history of network visualization from its origins in the 18th century to modern applications. It discusses:
- Early work by Euler and kinship diagrams that relied on visual representations to study networks.
- J.L. Moreno's sociograms in the 1930s that sparked interest in social network analysis through visualizations.
- Developments through the 20th century as researchers sought to move from artistic to more scientific visualizations.
- Challenges of visualizing large, complex networks while representing multiple node and edge attributes simultaneously.
- Benefits of visualization in making invisible network structures visible and providing multi-dimensional insights beyond metrics alone.
04 a knotting the small world with gatekeepersWesley Shu
This document discusses the "caveman" social structure of cohesive clusters connected by bridging connections. It describes how cohesive clusters can enhance the development of homogeneous ideas but also risks groupthink. Gatekeepers who bring in new information from bridging connections can counteract insularity. Examples are given of industries like furniture design in Lombardy, Italy that benefited from strong connections between components like schools and manufacturers. The world is described as smaller due to ease of talent and information movement, so companies should focus on maximizing information inflow through the use of gatekeepers.
Network Data Collection
The document discusses collecting social network data. It covers three main topics:
1) Introduces social network analysis and why networks are important in social science. Networks matter because of connections that allow diffusion and because positions in networks influence roles and behavior.
2) Discusses research design considerations for collecting network data, including specifying relations of interest based on theoretical mechanisms, boundary selection, and sampling approaches.
3) Addresses accuracy of network survey data and how to handle inaccurate or missing data. The goal is to systematically understand connections between actors using empirical network data and analysis methods.
This document summarizes three types of field experiments related to social networks:
1) Peer effects experiments examine whether individual j influences the behaviors or outcomes of individual i. Examples test whether encouraging individual i to vote or buy a product also influences their friend j.
2) Network formation experiments study what factors affect whether individual i forms a network tie with individual j. Examples test how anonymity, search costs, and interactions affect network tie formation.
3) Designing networks experiments evaluate which network structures maximize outcomes at the network level. Examples design peer groups and seed farmers to test how network structure impacts behavior diffusion.
The science of networks is becoming an increasingly important and intriguing area of study that reveals many a patterns and relationships often hidden. This presentation is about the use of SNA to study the network of the Digital Library Community
This chapter will introduce you to the field of science known as Network Theory and tell you about the major researches that took place since its conceptualization. Since the course in question is social computing the chapter is written in a way to give examples and illustrations which mostly relate to social computing. It also contains theories and information which are mostly related to network theory and have some or no relation to social computing. But the basic purpose of this chapter is to explain Network theory and its applications in the field of social computing.
Networks provide connections and positions that influence health outcomes. Social network analysis examines relationships between actors to understand how networks impact behavior. Networks matter through both connectionist mechanisms like diffusion, and positional mechanisms like social roles. Network data can be analyzed at different levels from individual ego networks to global networks, and can involve one or multiple types of relationships between nodes. Social network data is commonly represented through matrices and lists to encode network structure and allow computational analysis.
This document summarizes open problems and future directions in the field of social networks and health. It identifies key areas for methodological development including dynamic diffusion models, improved community detection techniques, and understanding triadic network structures. Important theoretical advances involve modeling multiplex and evolving networks over time as well as better understanding social mechanisms linking networks to health. Future data collection should incorporate electronic traces, return to community-based studies, and develop national samples capturing full network contexts.
The document announces a virtual conference to be held in Second Life on the sociological significance of virtual worlds. It includes an agenda with multiple sessions and presentations on topics like social networking sites, video games, virtual worlds, and using virtual spaces for education. Presenters will discuss issues like surveillance and social networks, women's experiences in online gaming, disabilities and gaming, conducting research in virtual environments, and exploring virtual spaces as participatory pedagogy.
A Perspective on Graph Theory and Network ScienceMarko Rodriguez
The graph/network domain has been driven by the creativity of numerous individuals from disparate areas of the academic and the commercial sector. Examples of contributing academic disciplines include mathematics, physics, sociology, and computer science. Given the interdisciplinary nature of the domain, it is difficult for any single individual to objectively realize and speak about the space as a whole. Any presentation of the ideas is ultimately biased by the formal training and expertise of the individual. For this reason, I will simply present on the domain from my perspective---from my personal experiences. More specifically, from my perspective biased by cognitive and computer science.
This is an autobiographical lecture on my life (so far) with graphs/networks.
The document discusses community detection in networks and multilayer networks. It begins with an introduction to community detection, how to calculate communities using various algorithms, and the importance of resolution parameters. It then provides a short introduction to multilayer networks and examples of community detection applied to real-world networks, including social networks, protein interaction networks, and legislative voting networks. The key points are that network representations provide a flexible framework for studying complex data, community detection is a powerful tool for exploring network structures, and network structures can identify essential features for modeling and understanding data applications.
01 Introduction to Networks Methods and Measuresdnac
This document provides an introduction to social network analysis. It discusses how networks matter through two fundamental mechanisms: connections and positions. Connections refer to the flow of things through networks, viewing networks as pipes. Positions refer to relational patterns and networks capturing role behavior, viewing networks as roles. The document also covers basic network data structures including nodes, edges, directed/undirected ties, binary/valued ties, and different levels of analysis such as ego networks and complete networks. It provides examples of one-mode and two-mode network data.
Community Evolution in the Digital Space and Creation of SocialInformation C...Saptarshi Ghosh
A social homogeneous group can be formed irrespective to geo-spatial contiguity and research reveals that interaction through online communication fosters social behaviours like teamwork, ties, bonding and trust building as well as community building.
This document discusses considerations for collecting social network data through surveys. It addresses research design elements like defining the relevant population boundaries and sampling approaches. For surveys specifically, it covers informed consent, name generator questions to identify social ties, response formats, and balancing depth of network detail collected versus sample size. The key challenges are defining the theoretical population of interest, collecting a sufficiently large and representative network sample, and designing survey questions that accurately capture social ties within time and resource constraints.
This document summarizes key concepts for describing networks, including centrality measures, connectivity, cohesion, and roles. It discusses measuring the importance of individual nodes through degrees, closeness, betweenness, and power centrality. It also covers sociocentric measures like degree distributions, centralization, and density. Additionally, it explores local connectivity through triads, transitivity, and clustering coefficients as well as structural cohesion through components and cut points.
This document provides a high-level overview of social network analysis as a field of study. It discusses three main ways of looking at social reality - as categories, groups, or networks. It also summarizes key concepts in social network analysis including nodes, ties, whole network analysis, personal network analysis, and multilevel analysis. Finally, it discusses changes in social connectivity from traditional groups to modern networked individualism enabled by new communication technologies.
This document provides biographical information about Nelson Mandela. It states that his given name was Rolihlahla Mandela, but he was also known as Nelson, which was given to him by his teacher. It outlines key events in Mandela's life including being born in 1918 in South Africa, becoming a lawyer and the leader of the African National Congress party, being imprisoned for 27 years for opposing apartheid, and eventually being elected as South Africa's first black President in 1994 after apartheid ended. The document also mentions Mandela's philosophies of non-violence and dignity that were inspired by Gandhi.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
This document summarizes a study that analyzed the social networks of scientists working in the field of agricultural innovation. The study used social network analysis techniques to examine:
- The communication and collaboration ties between scientists in the field to understand if an "invisible college" existed.
- How productive scientists were more central in the network than others based on measures like degree and density.
- How the field grew over time, with most new entrants in the late 1950s and early 1960s, including many students of the most productive scientists.
- How scientists could be grouped into distinct collaborative subgroups within the overall network based on their coauthorships and student-advisor relationships.
1) The study defined three categories of injecting drug users (IDUs) in a neighborhood in New York - a core network of 40 IDUs, an inner periphery of 95 IDUs who obtained drugs and assistance from the core, and an outer periphery who purchased drugs independently without interacting with the core.
2) Data was collected through ethnographic observation of hundreds of drug users, 210 interviews, and structured interviews with 767 IDUs where they named their injection partners.
3) Different levels of HIV risk behaviors and infection rates were found among the three network groups, with the core having the highest rates.
This document summarizes and compares four studies that used different name generator methods to study personal networks:
1. The East York study asked respondents to name the six people they felt closest to with no limits, resulting in larger networks.
2. The General Social Survey and Nashville Neighborhood Study used more restrictive generators focusing on discussion partners and neighbors, producing denser networks with more family members.
3. Restrictive generators that impose time frames and require contact result in smaller networks than less restrictive generators. Composition of networks varies more based on generator used than demographic attributes.
4. Density is highest in the most intimate and restrictive generators, ranging from 0.33 to 0.61. Reciprocity between
This document discusses different perspectives on how communities have changed with urbanization and the rise of modern society. It summarizes key theorists' views on the transition from gemeinshaft to gesellschaft communities and the impact on personal relationships. The document also reviews empirical studies that tested whether communities have been "lost", "saved", or "liberated" in modern times. These studies found that while large-scale social changes have impacted communities, people still maintain important relationships through spatially dispersed but interconnected social networks, rather than through single solidary communities. The impact of the internet on communities is also examined, with research finding that it supplements rather than replaces offline contact and ties.
This document provides an overview of using social network analysis to study cultural production. It discusses how the Manchester punk/post-punk music scene from 1976-1980 formed a cultural network among over 100 key actors. Having a "critical mass" of interconnected artists allowed resources and enthusiasm to be pooled, cultural work to be completed, and a music scene to emerge and be recognized. The network structure influenced opportunities for collaboration, support, and innovation. Studying relationships and dynamics within cultural networks can provide insights into how conventions, resources, and opportunities are distributed and how cultural production unfolds over time.
This document summarizes key concepts and theorists related to social capital. It discusses the work of Pierre Bourdieu, James Coleman, and Robert Putnam, who view social capital as the advantages generated by social networks and relationships. It also covers network perspectives that focus on measuring individuals' social ties and potential access to resources. The document outlines theories of social capital and studies that have tested relationships between social networks, accessed and mobilized social capital, and socioeconomic outcomes.
The document provides an overview of social network analysis. It discusses:
1) A lecture on the history and basics of social network analysis, including what networks are, different types of networks (egonetworks, whole networks), relationships, and data collection methods.
2) A tutorial on organizing student groups and selecting topics.
3) The second part of the lecture covers data collection methods like name generators, position generators, and roster methods for collecting egonetwork and whole network data through surveys.
This document summarizes research on interlocking directorates, which are instances where members of one company's board also serve on other companies' boards. Key findings include:
- Early 20th century studies found extensive interlocking between large US banks and corporations, leading to antitrust laws prohibiting competing firms from having interlocking boards.
- More recent network analysis finds the number of interlocks has declined in some countries but increased in others over time. Financial institutions typically have the most interlocks.
- Qualitative studies provide insights into how interlocks facilitate communication and coordination between firms while also concentrating power and control among elite members who serve on multiple boards.
- Future research opportunities include longitudinal analysis of international networks
This document summarizes several studies on the diffusion of innovations across social networks. Key points:
1. Early studies examined how individual attributes like age and social attributes like social ties affected the timing of adoption of a new drug. Doctors who were more socially integrated adopted the drug earlier.
2. Later studies analyzed longitudinal data to map the spread of behaviors like smoking across social networks over time. Clusters of adopters extended to three degrees of separation and friends, siblings, and spouses influenced each other's adoption rates.
3. Threshold models propose individuals adopt based on a threshold proportion of their social network already adopting. Those with low thresholds adopt early while those with high thresholds adopt later. This personal network approach
This document provides an overview and schedule for the SOCY30292 Connections Matter course. The course is offered on Tuesdays from 10:00-13:00 and includes a 1-hour lecture, 1-hour workshop, and 1-hour tutorial each week. It is worth 20 credits and assesses students through a 50% essay due in week 7 and a 50% exam during the exam period. Topics to be covered include community networks, social capital, health networks, and more. Students must attend all sessions, present in tutorials, and submit an essay plan in week 5 in preparation for the assessed essay.
Social networking-for-social-integration-prelim-transcriptReyesErica1
This document discusses key concepts in social network theory including networks, ties, weak ties, strong ties, structural holes, and role sets. It summarizes:
1) Social networks are made up of nodes (actors) connected by ties. Unlike groups, networks have no boundaries and can be disconnected parts that become connected over time.
2) Weak ties, or acquaintances between different social circles, are important for bringing new information and opportunities. Strong ties within one's own social circle provide trust and cohesion but less novelty.
3) People who bridge "structural holes" between different networks, usually via weak ties, gain access to diverse information and ideas that help them succeed and innovate.
Social network theory examines relationships between individuals and groups, and social network analysis uses mathematical and sociological methods to study patterns of information exchange within human networks. Key concepts include nodes, ties, and the identification of cohesive groups and brokers that control information flow. Studies by Milgram and Watts demonstrated that most people are connected through just 6 degrees of separation. Applying these insights, information professionals can map information routes and fill gaps to improve dissemination.
These slides are for my talk for the Somerville College Mathematics Reunion ("Somerville Maths Reunion", 6/24/17): http://www.some.ox.ac.uk/event/somerville-maths-reunion/
Social network analysis examines the connections between individuals, groups, organizations, or other social entities. It focuses on interactions rather than individual behavior. Network analysis can be applied across many disciplines to study how the structure of relationships influences functioning. Early research in network analysis developed in fields like sociology and psychology to study topics like homophily and the influence of relationships. Key concepts in network analysis include nodes, edges, degree, clustering coefficients, and graph diameter. "Small world" networks are highly clustered with short path lengths, characteristics often seen in real-world networks. Social capital research also examines how network connections impact groups, organizations, and individuals.
Social network theory examines relationships between individuals and groups through attributes like information exchange, tie strength, and flow of resources. Social network analysis uses tools from graph theory and sociology to study patterns of information exchange in human networks. It provides insights into identifying and modifying information flow, as well as cohesive groups and key information brokers. Milestone studies include Milgram's small world experiment showing six degrees of separation and Watts' work confirming small path lengths in human networks.
This document provides an introduction to social network analysis. It discusses how network analysis allows us to understand social connections and positions. There are two key mechanisms through which networks can impact outcomes: connections, where networks matter because of what flows through them, and positions, where networks capture roles and social exchange. Network analysis provides tools to empirically study patterns of social structure by mapping relationships between actors.
This document provides an agenda for a class on social media that includes discussions on various social media terms and concepts. It outlines activities for students, such as defining social media and discussing the differences between social media "visitors" and "residents". It also lists various readings and resources for students to explore key topics in social media research, such as network analysis, tie strength, and strategic planning for social media initiatives. The document provides links to external resources and materials to support the activities and assignments for the class.
Presentazione di Paolo Massa nell'ambito del Seminario residenziale “L’approccio territoriale tra aiuto e crescita” - 22-23 giugno 2012 - Villa Flangini - Asolo - Organizzato dal SerAT (Servizio Alcologia e Tabagismo Ulss 8)
Con il contributo di ACAT-ULSS 8 onlus e Cooperativa Sonda. Con il patrocinio di Alcologia Ecologica
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2. The new social physics
• Revisited interest in the small world theory
• Interested in the mathematical properties that allow a
network involving millions of nodes to be organized such
that each is separated by an average of only six degrees
from any other
• They claim to have identified a wide number of networks
which manifest ‘small worldliness’, including the internet
and the first completely mapped neural network, that of
the nematode worm.
• However, the way in which new social physicists approach
social networks lacks sociological purchase and evidences a
superficial grasp of social relations/interactions
Nick Crossley, 2008, Small-World Networks, Complex Systems and Sociology,
Sociology 42: 261
3. Watts
How can pairs of individuals, randomly selected from the USA’s
enormous population, turn out to be connected by 6 degrees chain?
• ‘small worldliness’ emerges in networks of any size, even if each
node has only a relatively small number of ties, if those ties are
randomly assigned.
• if each of us is assumed (not unrealistically) to ‘know’ 500 people,
and if each of the people we know knows a further 500 people,
then we are connected to 250,000 people via only one
intermediary (two degrees). Take that one step further by adding
the 500 contacts of each of those we are connected to by our
intermediary (three degrees) and the figure is 125,000,000, which
is already much larger than the estimated 60,609,153 people who
made up the UK population in 2006
• The obvious objection to this calculation concerns ‘redundancy’;
many of our acquaintances would list one another as
acquaintances and thus fail to reach out to new contacts.
4. But…
• Network structures in the real world are not randomly
configured. And the way in which they are configured can run
contrary to the prerequisites of small worldliness.
• Granovetter shows that individuals who are strongly tied to
one another tend each to have further sets of strong ties to
the same people. They are friends with their friends’ friends.
In contrast to the small world situation, individuals are found
to belong to small cliques or ‘clumps’ whose structure
involves a high level of ‘redundancy’.
• Weak ties bridge cliques and provide pathways to new
contacts. Social structure has a dual aspect. It consists of
‘clumps’ of strongly tied individuals, linked by weak ties
• It is these weak ties which provide for small worldliness in
Watts’ view
5. Barabasi
• Watts’ model presupposes that all vertices in a small world
network have the same number of contacts (‘degree’) or at
least that degree is normally distributed.
• This is not necessarily so, however. In his work on the URL
connectionscomprising the worldwide web, Barabási (2003)
found a scale-free distribution of degree
• many nodes had a relatively small degree, whilst a small
number had a very large degree.
• This network configuration generates a small world too,
Barabási argues, because those vertices which enjoy a very
high degree connect to most other vertices in the network,
and this makes them hubs which connect up all or most of
the other vertices in their network.
6. The small world thinkers tend to overlook important sociological
factors. They ignore:
• the meaning of social relations
• the time–space relations that are central to social organization
• the role of technology and transport in human relations
• key issues of inequality, conflict and exclusion.
7. The lack of sociological theory
“Almost anyone … is but a few removes from the President … but this is only
true in terms of a particular mathematical viewpoint and does not, in any
practical sense, integrate our lives with [his] … We should think of the two
points as being not five persons apart but ‘five circles of acquaintances’ apart
– five ‘structures’ apart. This helps to set it in its proper perspective”. (Milgram
2004[1967]: 117)
• Milgram had good sociological reasons for conducting his experiments; he
sought to explore social closure and segregation.
• However, if the small world problematic is to be sociologically relevant,
whether or not it deals with issues of closure and segregation, we need to
move beyond artificial experiments centred upon ‘who knows whom’ to
focus upon more meaningful and naturally occurring interactions in real
life complex social systems.
8.
9. A problem for sociology of science
Network science VS the new social physics: the
querelle takes places in
- Scientific publications
- Twitter
- Socnet
The problem: the physicists do not
acknowledged the foundational work of SNA,
which is never cited in their work
10. Example
Brian V. Carolan, The structure of educational research:
The role of multivocality in promoting cohesion in an
article interlock network, Social Networks 30 (2008)
69–82
Citations of
• Sociological theorists
• Network analysts
• Physicists
11. Abbott, A., 2001. Chaos of Disciplines. University of Chicago Press, Chicago.
Adamic, L.A., Huberman, B.A., 2002. Zipf’s Lawand the Internet. Glottometrics 3, 143–150.
Amaral, L.A.N., Scala, A., Barthelemy, M., Stanley, H.E., 2000. Classes of small-world networks. Proceedings of the
National Academy of Sciences 97, 11149–11152.
Barabasi, A.-L., 2003. Linked: How Everything is Connected to Everything Else and What it Means for Business, Science,
and Everyday Life. Plume, Cambridge, MA.
Barabasi, A.-L., Albert, R., Jeong, H., Bianconi, G., 2000. Power-law distribution of the World Wide Web. Science 287,
2115b.
Batagelj, V., Mrvar, A., 2006. Pajek: Program for Analysis and Visualization of Large Networks (Version 1.14). Ljubljana,
Slovenia.
Bearman, P., 1993. Relations into Rhetorics: Local Elite Social Structure in Norfolk, England, 1540–1640. Rutgers
University Press, New Brunswick, NJ.
Borgatti, S.P., Everett, M.G., Shirey, P.R., 1990. LS Sets, Lamda Sets, and Other Cohesive Subsets. Social Networks 12,
337–357.
Borner, K., Sanyal, S., Vespignani, A., 2007. Network science. In: Cronin, B. (Ed.), Annual Review of Information Science,
vol. 41. American Society for Information Science and Technology, Medford, NJ, pp. 537– 607.
Burt, R.S., 1982. Toward a Structural Theory of Action. Academic Press, New York.
Burt, R.S., 1987. Social contagion and innovation: cohesion versus structural equivalence. American Journal of
Sociology 92 (6), 1287–1335.
Coleman, J.S., 1958. Relational analysis: the study of social organizations with survey methods. Human Organization
17, 28–36.
Collins, B.E., Raven, B.H., 1968. Group structure: attraction, coalitions, communications and power. In: Lindzey, G.,
Aron, E. (Eds.), Handbook of Social Psychology. Addison-Wesley, MA.
Crane, D., 1972. Invisible Colleges: Diffusion of Knowledge in Scientific Communities.
University of Chicago Press, Chicago.
de Nooy,W., Mrvar, A., Batagelj,V., 2005. Exploratory Social Network Analysis with Pajek. Cambridge University Press,
New York.
Doreian, P., Batagelj, V., Ferligoj, A.K., 2004. Generlized blockmodeling of two-mode network data. Social Networks 26
(1), 1–27.
Durkheim, E., 1984. Division of Labor in Society (W.D. Walls, Trans.). The Free Press, New York.
12. Griffith, B.C., Mullins, N.C., 1972. Coherent social groups in scientific change: ‘invisible colleges’ may be consistent
throughout science. Science 177, 959–964.
Griswold, W., 1987. A methodological framework for the sociology of culture. Sociological Methodology 17, 1–35.
Krackhardt, D., Stern, R.N., 1988. Informal networks and organizational crises: an experimental simulation. Social
Psychology Quarterly 51 (2), 123– 140.
Kuhn, T.S., 1962. The Structure of Scientific Revolutions. University of Chicago Press, Chicago.
Merton, R.K., 1957. Social Theory and Social Structure. Free Press, Glencoe, IL.
Merton, R.K., 1968. The Matthew Effect in Science. Science 159, 56–63.
Milgram, S., 1967. The Small World Problem. Psychology Today 2, 60–67.
Moody, J., 2004. The structure of a social science collaboration network: disciplinary cohesion from 1963–1999.
American Sociological Review 69 (2), 213–238.
Moody, J., White, D.R., 2003. Social cohesion and embeddedness: a hierarchical conception of social groups. American
Sociological Review 68, 103– 127.
Mulkay, M.J., 1974. Methodology in the sociology of science: some reflections on the study of radio astronomy. Social
Science Information 13, 109–119.
Mullins, N.C., Hargens, L.L., Hecht, P.K., Kick, E.L., 1977. The group structure of cocitation clusters: a comparative study.
American Sociological Review 42 (4), 552–562.
Newman, M.E.J., 2001. The structure of scientific collaboration networks. Proceedings of the National Academy of
Sciences 98, 404–409.
Newman, M.E.J., 2004. Detecting community structure in networks. Eur. Phys. J. B 38, 321–330.
Newman, M.E.J., Strogatz, S.H., Watts, D.J., 2001. Random graphs with arbitrary degree distributions and their
applications. Phys. Rev. E 64, 1–19.
Simmel, G., 1950. The Sociology of Georg Simmel (K. Wolff, Trans.). Free Press, Glencoe, IL.
Small, H., Griffith, B.C., 1974. The structure of the scientific literature I. Science Studies 4, 17–40.
Snijders, T.A.B., Borgatti, S.P., 1999. Non-parametric standard errors and tests for network statistics. Connections 22
(2), 161–170.
Watts, D.J., 1999. Small Worlds: The Dynamics of Networks Between Order and Randomness. Princeton University
Press, Princeton, NJ.
13. Example
• Marco Tomassini, Leslie Luthi, Empirical
analysis of the evolution of a
scientific collaboration network, Physica A 385
(2007) 750–764
• Mingyang Wanga, Guang Yua, Daren
Yua, Effect of the age of papers on the
preferential attachment in citation
networks, Physica A 388 (2009) 42734276
14. Tomassini
[1] R. Albert, A.-L. Barabasi, Statistical mechanics of complex networks, Rev. Mod. Phys. 74 (2002) 47–97.
[2] M.E.J. Newman, The structure and function of complex networks, SIAM Rev. 45 (2003) 167–256.
[3] M.E.J. Newman, Clustering and preferential attachment in growing networks, Phys. Rev. E 64 (2001) 025102.
[4] A.-L. Barabasi, H. Jeong, Z. Ne´da, E. Ravasz, A. Schubert, T. Vicsek, Evolution of the social network of scientific
collaborations, Physica A 311 (2002) 590–614.
[5] H. Jeong, Z. Ne´da, A.-L. Barabasi, Measuring preferential attachment in evolving networks, Europhysics Lett. 61
(2003) 567–572.
[6] A. Broder, R. Kumar, F. Maghoul, P. Raghavan, S. Rajagopalan, R. Stata, A. Tomkins, J. Wiener, Graph structure in the
web, Comput. Networks 33 (2000) 309–320.
[7] A.-L. Baraba´ si, R. Albert, H. Jeong, Scale-free characteristics of random networks: the topology of the World Wide
Web, Physica A 281 (2000) 69–77.
[8] C.P. Massen, J.P.K. Doye, A self-consistent approach to measure preferential attachment in networks and its
application to an inherent structure network, Physica A 377 (2007) 351–362.
[9] G. Kossinets, D.J. Watts, Empirical analysis of an evolving social network, Science 311 (2006) 88–90.
[10] A. Capocci, V.D.P. Servedio, F. Colaiori, L.S. Buriol, D. Donato, S. Leonardi, G. Caldarelli, Preferential attachment in the
growth of social networks: the Internet encyclopedia Wikipedia, Phys. Rev. E 74 (2006) 036116.
[11] L. Baraba´ si, R. Albert, Emergence of scaling in random networks, Science 286 (1999) 509–512.
[12] P.L. Krapvsky, S. Redner, F. Leyvraz, Connectivity of growing random networks, Phys. Rev. Lett. 85 (2000) 4629–4632.
[13] J.W. Grossman, The evolution of the mathematical research collaboration graph, Congress. Numer. 158 (2002) 201–
212.
[14] M.E.J. Newman, Scientific collaboration networks. I. Network construction and fundamental results, Phys. Rev. E 64
(2001) 016131.
[15] M.E.J. Newman, Scientific collaboration networks. II. Shortest paths, weighted networks, and centrality, Phys. Rev. E
64 (2001) 016132.
[16] L. Luthi, M. Tomassini, M. Giacobini, W.B. Langdon, The genetic programming collaboration network and its
communities, in: D. Thierens, et al. (Eds.), Proceedings of the Genetic and Evolutionary Computation Conference
GECCO’07, ACM Press, 2007,
pp. 1643–1650.
15. Wanga
[1] H. Zhu, X. Wang, J.-Y. Zhu, Phys. Rev. E 68 (2003) 056121.
[2] S.N. Dorogovtsev, J.F.F. Mendes, Phys. Rev. E 62 (2000) 1842.
[3] L.A.N. Amaral, et al., Proc. Natl. Acad. Sci. USA 97 (2000) 11149.
[4] K.B. Hajra, P. Sen, Phys. Rev. E 70 (2004) 056103.
[5] K.B. Hajra, P. Sen, Physica A 346 (2005) 44.
[6] K.B. Hajra, P. Sen, Physica A 368 (2006) 575.
[7] D.J.S. Price, Science 149 (1965) 510.
[8] S. Redner, Phys. Today 58 (2005) 49.
[9] H. Jeong, Z. Déda, A.L. Barabási, Eur. Phys. Lett. 61 (2003) 567.
[10] M.Y. Wang, G. Yu, D.R. Yu, Physica A 387 (2008) 4692.
[11] B.C. Brooks, J. Documents 26 (1970) 283.
16. Socnet
Date: Sun, 16 Jun 2013 03:34:33 -0400
From: jcomas@BUCKNELL.EDU
Subject: Re: [SOCNET] werent only the physicists
To: SOCNET@LISTS.UFL.EDU
I don't have any data on popularity, but two tilts at the windmill here:
1. Watts book six degrees was part of this popularity and it is half about human behavior.
2 the title six degrees resonated as it was embedded in the vulture ever since Milgram in the 1950s, boosted by the the John Guare play from the
1980s...turned into a film with Will smith.
So, as to the wider public, it is possible the interest in SNA was stoked by many non physicist influences.
Jordi
On Saturday, June 15, 2013, "Gulyás, László" wrote:
Dear Barry and All,
I think no one really questions that SNA existed before the arrival of the statistical physics approach to the field. Yet, it would be futile to question that
it was the physicists' arrival that made it famous and known to the wider public (for better or worse).
Best regards,
Laszlo
2013.06.14. 21:53 Barry Wellman:
I just sent this comment to Science
Network analysis blossomed well before the physicists came lately to the
field in the 1990s. By the 1970s, social network analysis had a
professional society with 700 members and a lively annual conference in
the U.S. or Europe. Much good research, theorizing and methods were
done, resulting in the current NSA activity, for better or worse. The
key as you note, was the recent development of big data sets and
computational ability to analyze them.
Barry Wellman
23. What is network science?
ULRIK BRANDES, GARRY ROBINS, ANN McCRANIE and STANLEY WASSERMAN
Network Science / Volume 1 / Issue 01 / April 2013, pp 1 15
DOI: 10.1017/nws.2013.2, Published online: 15 April 2013
As editors of a journal attempting to encompass a broad field
with a long and storied history, we have already rejected the idea
that network science “began” with some kind of new discovery
or even a Kuhnian paradigm shift tipped off by work originating
from physics, no matter how interesting or influential. Network
science is neither tied to nor “owned” by any other field.
We should not be ignorant of the forebears of our emerging
science, and decades of empirical research. The past 15 years
have seen a boom of interest in networks that does not overtly
trace its roots to, for example, the sociometry of Moreno or the
sociology of Simmel.