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RWTH Aachen University Multidimensional Patterns of Disturbance in Digital Social Networks Dimitar Denev Lehrstuhl fĂĽr Informatik V Information Systems Prof. Dr. Matthias Jarke Lehr- und Forschungsgebiet  Knowledge-based Systems Prof. Gerhard Lakemeyer Ph.D. Advisors: Ralf Klamma Marc Spaniol Master Thesis Final Presentation
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Motivation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Problem Statement ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],Solution Approach
Solution Approach ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
State of the Art Digital Social Networks Projects Relations built on the information from Google, Friend-Of-A-Friend network, Bibliography Dependencies derived from the technical dependencies Posting in the same thread Relations Social Network Analysis, Semantic Web Individuals Friend-Of-A-Friend network, Google results  Flink  [Mika 2005] Temporal Analysis Developers, Software Components Eclipse IDE, CVS Repository Ariadne  [de Souza et al. 2004] Social Network Analysis, Statistics Individuals, Mails, Threads, Genres Mailing List COMB  [Boudourides et  al. 2002] Analysis Approach Actors Media
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Model of Digital Social Networks Actor-Network Theory [Latour 1997]
Digital Social Network Model of Digital Social Networks Digital Media I* Dependencies Members Artefacts Member Network
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Model of Digital Social Networks Members
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Model of Digital Social Networks Media
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Model of Digital Social Networks Artefacts
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Model of Digital Social Networks I* Framework [Yu et al. 1997]
Network Coordinator Gatekeeper Hub Member Iterant  Broker URL isA isA isA Coordination Artefact Communication Model of Digital Social Networks I* Dependencies Example isA
State of the Art Pattern Languages Projects „ Asynchronous collaborative learning“, „Student group management“ no patterns available „ Working in small groups“, „Overlapping responsibilities“ „ Citizen access to simulations“,  „Online Community Service Engine“ Pattern Examples XML Schema Synopsis, Problem, Context, Forces, Rationale, Pattern Link Human-Computer Interface PLML [Fincher 2004] Not available Not available Not available Formal Definition Problem, Analysis, Solution, Context e-Learning E-LEN  [Steeples et al. 2004] Essence, Context, Discussion, Implication, Pattern Relations Computer-Supported Collaborative Work PoInter [Viller et al. 2000] Problem, Context, Discussion, Solution Social Studies Public Sphere Project  [Schuler 2002] Pattern Structure Domain
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Pattern Language Pattern Structure
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Pattern Language FELP
Troll Pattern : This pattern tries to discover the cases when a troll exists in a digital social network. A troll in the network is considered a disturbance.   Disturbance :   (EXISTS [medium | medium.affordance = threadArtefact]) &  (EXISTS [troll |(EXISTS [thread | (thread.author = troll) &    (COUNT [message | (message.author = troll) &    (message.posted = thread)]) > minPosts]) &   (~EXISTS[ thread 1 , message 1 | (thread 1 .author 1  != troll) &   (message 1 .author = troll & message 1 .posted = thread 1  ]))])]) Forces :  medium; troll; network; member; thread; message; url Force Relations :  neighbour(troll, member); own thread(troll, thread) Solution :   No attention must be paid to the discussions started by the   troll .  Rationale : The troll needs attention to continue its activities. If no attention is paid, he/she will stop participating in the discussions.  Pattern Relations : Associates Spammer pattern. Pattern Language Sample Pattern
[object Object],[object Object],[object Object],[object Object],[object Object],Pattern Language Algorithm for Pattern Application 1. Set pattern parameters Pattern Disturbance Variables Pattern Template Disturbance Variables Pattern Parameters
[object Object],[object Object],[object Object],Pattern Language Algorithm for Pattern Application 1. Set pattern parameters 2. Instantiate disturbances ,[object Object],[object Object],Pattern Disturbance Variables Pattern Template Disturbance Variables Pattern Parameters Pattern Template Instance Disturbance Instances Variables Pattern Parameters Digital Social Network
Pattern Language Algorithm for Pattern Application 1. Set pattern parameters 2. Instantiate disturbances 3. Evaluate disturbances 4a. Change Pattern Parameters 4b. Apply Pattern Solution Pattern Disturbance Variables Pattern Template Disturbance Variables Pattern Parameters Pattern Template Instance Pattern Instance Disturbance Variables Pattern Parameters Forces Force Relations Rationale Dependencies Description Solution Pattern Relations Disturbance Instances Variables Pattern Parameters Digital Social Network
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],PALADIN Architecture Implementation ,[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],PALADIN Web Interface
[object Object],[object Object],[object Object],[object Object],[object Object],PALADIN JUNG Interface Extension
[object Object],PALADIN Results Occurs in big networks where the members are distributed in different clusters. 40 No Leader Occurs for members having neighbours with only one contact. 67 Structural Hole Occurs in large networks where disconnected subnetworks exist. Scalability is necessary. 13 Independent Discussions The pattern occurs in the network centered around a member. 37 Leader Spammers can be found often in discussion groups. False positives exist. 86 Spammer Troll occurs very rarerly in cultural communities. True negatives exist. 2 Troll Occurs in small networks. The effects of the lack of an answering person must be further checked with content analysis. 61 No Answering Person The existence implies that the network is not popular. 67 No Questioner The existence implies little communication in the network. 76 No Conversationalist The pattern finds out topics which were very important for certain period of time. Scalability is necessary. 22 Burst Remarks Occurrences Pattern
Conclusion Depends on the used media in the network Relations built on the information from Google, FOAF, Mails, Bibliography Dependencies derived from the technical dependencies. Posting in the same thread. Relations Social Network Analysis, Semantic Web  Individuals Friend-Of-A-Friend network, Google results Flink [Mika 2005] Disturbance-oriented, Pattern Repository, Social Network Analysis, Temporal Analysis, Statistics Media, Members, Artefacts Any Type of Digital Social Network PALADIN Temporal Analysis Developers, Software Components Eclipse IDE, CVS Repository Ariadne [de Souza et al. 2004] Social Network Analysis, Statistics Individuals, Mails, Threads, Genres Mailing List COMB  [Boudourides et  al. 2002] Analysis Approach Actors Media
Outlook ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object]

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Multidimensional Patterns of Disturbance in Digital Social Networks

  • 1. RWTH Aachen University Multidimensional Patterns of Disturbance in Digital Social Networks Dimitar Denev Lehrstuhl fĂĽr Informatik V Information Systems Prof. Dr. Matthias Jarke Lehr- und Forschungsgebiet Knowledge-based Systems Prof. Gerhard Lakemeyer Ph.D. Advisors: Ralf Klamma Marc Spaniol Master Thesis Final Presentation
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7. State of the Art Digital Social Networks Projects Relations built on the information from Google, Friend-Of-A-Friend network, Bibliography Dependencies derived from the technical dependencies Posting in the same thread Relations Social Network Analysis, Semantic Web Individuals Friend-Of-A-Friend network, Google results Flink [Mika 2005] Temporal Analysis Developers, Software Components Eclipse IDE, CVS Repository Ariadne [de Souza et al. 2004] Social Network Analysis, Statistics Individuals, Mails, Threads, Genres Mailing List COMB [Boudourides et al. 2002] Analysis Approach Actors Media
  • 8.
  • 9. Digital Social Network Model of Digital Social Networks Digital Media I* Dependencies Members Artefacts Member Network
  • 10.
  • 11.
  • 12.
  • 13.
  • 14. Network Coordinator Gatekeeper Hub Member Iterant Broker URL isA isA isA Coordination Artefact Communication Model of Digital Social Networks I* Dependencies Example isA
  • 15. State of the Art Pattern Languages Projects „ Asynchronous collaborative learning“, „Student group management“ no patterns available „ Working in small groups“, „Overlapping responsibilities“ „ Citizen access to simulations“, „Online Community Service Engine“ Pattern Examples XML Schema Synopsis, Problem, Context, Forces, Rationale, Pattern Link Human-Computer Interface PLML [Fincher 2004] Not available Not available Not available Formal Definition Problem, Analysis, Solution, Context e-Learning E-LEN [Steeples et al. 2004] Essence, Context, Discussion, Implication, Pattern Relations Computer-Supported Collaborative Work PoInter [Viller et al. 2000] Problem, Context, Discussion, Solution Social Studies Public Sphere Project [Schuler 2002] Pattern Structure Domain
  • 16.
  • 17.
  • 18. Troll Pattern : This pattern tries to discover the cases when a troll exists in a digital social network. A troll in the network is considered a disturbance. Disturbance : (EXISTS [medium | medium.affordance = threadArtefact]) & (EXISTS [troll |(EXISTS [thread | (thread.author = troll) & (COUNT [message | (message.author = troll) & (message.posted = thread)]) > minPosts]) & (~EXISTS[ thread 1 , message 1 | (thread 1 .author 1 != troll) & (message 1 .author = troll & message 1 .posted = thread 1 ]))])]) Forces : medium; troll; network; member; thread; message; url Force Relations : neighbour(troll, member); own thread(troll, thread) Solution : No attention must be paid to the discussions started by the troll . Rationale : The troll needs attention to continue its activities. If no attention is paid, he/she will stop participating in the discussions. Pattern Relations : Associates Spammer pattern. Pattern Language Sample Pattern
  • 19.
  • 20.
  • 21. Pattern Language Algorithm for Pattern Application 1. Set pattern parameters 2. Instantiate disturbances 3. Evaluate disturbances 4a. Change Pattern Parameters 4b. Apply Pattern Solution Pattern Disturbance Variables Pattern Template Disturbance Variables Pattern Parameters Pattern Template Instance Pattern Instance Disturbance Variables Pattern Parameters Forces Force Relations Rationale Dependencies Description Solution Pattern Relations Disturbance Instances Variables Pattern Parameters Digital Social Network
  • 22.
  • 23.
  • 24.
  • 25.
  • 26. Conclusion Depends on the used media in the network Relations built on the information from Google, FOAF, Mails, Bibliography Dependencies derived from the technical dependencies. Posting in the same thread. Relations Social Network Analysis, Semantic Web Individuals Friend-Of-A-Friend network, Google results Flink [Mika 2005] Disturbance-oriented, Pattern Repository, Social Network Analysis, Temporal Analysis, Statistics Media, Members, Artefacts Any Type of Digital Social Network PALADIN Temporal Analysis Developers, Software Components Eclipse IDE, CVS Repository Ariadne [de Souza et al. 2004] Social Network Analysis, Statistics Individuals, Mails, Threads, Genres Mailing List COMB [Boudourides et al. 2002] Analysis Approach Actors Media
  • 27.
  • 28.