This document discusses exploratory data analysis (EDA) and its application to analyzing computer networking data. EDA involves graphically summarizing data to uncover patterns, relationships, and structure without formal hypothesis testing. The document outlines the EDA process, including identifying key metrics and factors to explore. It provides examples of EDA graphs that could be used to analyze simulated WiFi data, examining how various factors like vendor, user type, and distance affect network performance metrics. The goal of EDA is to gain insights, detect anomalies, and inform modeling before running extensive simulations or experiments.
XML Document Object Model (DOM) is a standard for accessing and navigating XML code. All structured documents have a DOM system. The DOM simply defines the objects and properties in code, so parsers can identify and understand the individual parts. The DOM presents an XML document as a tree-structure. Knowing the XML DOM is a must for anyone working with XML.
What is the DOM?
The DOM is a W3C (World Wide Web Consortium) standard.
The DOM defines a standard for accessing documents:
"The W3C Document Object Model (DOM) is a platform and language-neutral interface that allows programs and scripts to dynamically access and update the content, structure, and style of a document."
The W3C DOM standard is separated into 3 different parts:
Core DOM - standard model for all document types
XML DOM - standard model for XML documents
HTML DOM - standard model for HTML documents
The HTML DOM (Document Object Model)
When a web page is loaded, the browser creates a Document Object Model of the page.
The HTML DOM model is constructed as a tree of Objects.
With the HTML DOM, JavaScript can access and change all the elements of an HTML document.
HTML5 is a language for structuring and presenting content for the World Wide Web. it is the fifth revision of the HTML standard (created in 1990 and standardized as HTML4 as of 1997) and as of February 2012 is still under development. Its core aims have been to improve the language with support for the latest multimedia while keeping it easily readable by humans and consistently understood by computers and devices (web browsers, parsers, etc.). It improves interoperability and reduces development costs by making precise rules on how to handle all HTML elements, and how to recover from errors
PHP stands for “PHP: Hypertext Preprocessor”. It is very good for creating dynamic content. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP.
Copy of the slides from the Advanced Web Development Workshop presented by Ed Bachta, Charlie Moad and Robert Stein of the Indianapolis Museum of Art during the Museums and the Web 2008 conference in Montreal
The Browser Object Model (BOM) in JavaScript includes the properties and methods for JavaScript to interact with the web browser.
BOM provides you with window object, for example, to show the width and height of the window. It also includes the window.screen object to show the width and height of the screen.
Whenever we need to transfer XML file, we need to ensure about its quality and its error-freeness. This can be achieved through DTD (Document Type Definition).
Anchor object
Document object
Event object
Form and Form Input object
Frame, Frameset, and IFrame objects
Image object etc
Dom hiearchy,managing events
onload and onunload
Using the Onclick Event Handler
XML Document Object Model (DOM) is a standard for accessing and navigating XML code. All structured documents have a DOM system. The DOM simply defines the objects and properties in code, so parsers can identify and understand the individual parts. The DOM presents an XML document as a tree-structure. Knowing the XML DOM is a must for anyone working with XML.
What is the DOM?
The DOM is a W3C (World Wide Web Consortium) standard.
The DOM defines a standard for accessing documents:
"The W3C Document Object Model (DOM) is a platform and language-neutral interface that allows programs and scripts to dynamically access and update the content, structure, and style of a document."
The W3C DOM standard is separated into 3 different parts:
Core DOM - standard model for all document types
XML DOM - standard model for XML documents
HTML DOM - standard model for HTML documents
The HTML DOM (Document Object Model)
When a web page is loaded, the browser creates a Document Object Model of the page.
The HTML DOM model is constructed as a tree of Objects.
With the HTML DOM, JavaScript can access and change all the elements of an HTML document.
HTML5 is a language for structuring and presenting content for the World Wide Web. it is the fifth revision of the HTML standard (created in 1990 and standardized as HTML4 as of 1997) and as of February 2012 is still under development. Its core aims have been to improve the language with support for the latest multimedia while keeping it easily readable by humans and consistently understood by computers and devices (web browsers, parsers, etc.). It improves interoperability and reduces development costs by making precise rules on how to handle all HTML elements, and how to recover from errors
PHP stands for “PHP: Hypertext Preprocessor”. It is very good for creating dynamic content. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP.
Copy of the slides from the Advanced Web Development Workshop presented by Ed Bachta, Charlie Moad and Robert Stein of the Indianapolis Museum of Art during the Museums and the Web 2008 conference in Montreal
The Browser Object Model (BOM) in JavaScript includes the properties and methods for JavaScript to interact with the web browser.
BOM provides you with window object, for example, to show the width and height of the window. It also includes the window.screen object to show the width and height of the screen.
Whenever we need to transfer XML file, we need to ensure about its quality and its error-freeness. This can be achieved through DTD (Document Type Definition).
Anchor object
Document object
Event object
Form and Form Input object
Frame, Frameset, and IFrame objects
Image object etc
Dom hiearchy,managing events
onload and onunload
Using the Onclick Event Handler
Do you still think Moodle is boring?
Do you run out of ideas of how to use Moodle with your learners?
Do you want to improve retention and achievement?
This slideshow will give you fresh and new ideas to boost up your Moodle course.
Find out why you should use Moodle to promote learning, collaboration and communication, discover how to support and engage your learners and how to offer an interactive and rich learning experience.
After watching the slideshow, you will have an idea of what Moodle is capable of. Your next step is to learn how to create the activities suggested, such as Forums, Chats, Quizzes, internet embedded content, etc…
In the videos’ section you can find already a podcast that shows you the potential of a forum, how to use it with your learners and how to create it on Moodle.
There are more podcasts being created that will cover other activities.
Moodle is here because it saves us time and makes things much better for your learners.
Now… click and enjoy the show!
February 18 2015 NISO Virtual Conference Scientific Data Management: Caring for Your Institution and its Intellectual Wealth
Using data management plans as a research tool: an introduction to the DART Project
Amanda L. Whitmire, Ph.D., Assistant Professor, Data Management Specialist, Oregon State University Libraries & Press
Python for Data Analysis: A Comprehensive GuideAivada
In an era where data reigns supreme, the importance of data analysis for insightful decision-making cannot be overstated. Python, with its ease of learning and a plethora of libraries, stands as a preferred choice for data analysts.
Metabolomic Data Analysis Workshop and Tutorials (2014)Dmitry Grapov
Get more information:
http://imdevsoftware.wordpress.com/2014/10/11/2014-metabolomic-data-analysis-and-visualization-workshop-and-tutorials/
Recently I had the pleasure of teaching statistical and multivariate data analysis and visualization at the annual Summer Sessions in Metabolomics 2014, organized by the NIH West Coast Metabolomics Center.
Similar to last year, I’ve posted all the content (lectures, labs and software) for any one to follow along with at their own pace. I also plan to release videos for all the lectures and labs.
Tips and Tricks to be an Effective Data ScientistLisa Cohen
Data Science is an evolving field, that requires a diverse skill set. From Analytical Techniques to Career Advice, this talk is full of practical tips that you can apply immediately to your job.
BDVe Webinar Series - Designing Big Data pipelines with Toreador (Ernesto Dam...Big Data Value Association
In the Internet of Everything, huge volumes of multimedia data are generated at very high rates by heterogeneous sources in various formats, such as sensors readings, process logs, structured data from RDBMS, etc. The need of the hour is setting up efficient data pipelines that can compute advanced analytics models on data and use results to customize services, predict future needs or detect anomalies. This Webinar explores the TOREADOR conversational, service-based approach to the easy design of efficient and reusable analytics pipelines to be automatically deployed on a variety of cloud-based execution platforms.
This presentation is intended to give the viewer a working knowledge of the practical applications of SAS in terms of Banking Analytics. Specifically, Enterprise Guide and Enterprise Miner have been discussed in detail.
Law firms & lawyers - rid the manual review of text documents, correspondence, etc. Text Analytics of unstructured documents signals potential knowledge that brings relevance & helps win cases. Moreover, use of text analytics helps offer small firms the same advantage that big firms have. As the information can be used to strengthen solutions and provide advice to attorneys, courtrooms will also benefit from more informed, better prepared legal teams and swift action, keeping long years of litigation away!
Look no further than our comprehensive Data Science Training program in Chandigarh. Designed to equip individuals with the skills and knowledge required to thrive in today's data-centric world, our course offers a unique blend of theoretical foundations and hands-on practical experience.
Data pipelines are the heart and soul of data science. Are you a beginner looking to understand data pipelines? A glimpse into what they are and how they work.
SDN Dependability: Assessment, Techniques, and Tools - SDN Research Group - I...Stenio Fernandes
This talk will discuss what is dependability, how it has effects upon network design and management in SDN scenarios, why it is important to measure and assess its attributes (e.g., availability, reliability), and what are the tools and techniques for scalable performance evaluation. In addition, challenges for introducing dependability assessment in SDN HW/SW components will be discussed. We will also give some directions on possible solutions, including plans for some I-Ds.
Some topics of the presentation are:
- How to assess risks associated to SDN deployment?
- How to measure and improve dependability attributes in SDN
- Dependability in virtualized environments: A glimpse on research papers
- I-D proposals related to dependability for SDN
Research Challenges and Opportunities in the Era of the Internet of Everythin...Stenio Fernandes
Currently there is increasing interest in scientific research on network traffic management for advanced scenarios (e.g. Internet of Everything (IoE), Everything as a Service (XaaS), Smart Cities, and the like) and their respective demands for novel network services. Such networked applications bring massive amounts of traffic data to be processed in real-time, thus driving researchers to develop affordable yet efficient network management systems. In fact, new paradigms, services, and architectures, such as Network Virtualization (NV), Software-Defined Networking (SDN), Distributed Cloud Computing, Network Functions Virtualization (NFV), Service Function Chaining (SFC), etc, will require robust and dynamic capabilities to support a myriad of possibilities for applications from the IoE and XaaS concepts. For example, there is a need for an in-depth understanding of the composition and the dynamics of Internet traffic to perform accurate capacity planning, deploy efficient management policies and pricing strategies, assess protocol performance, and detect abnormalities in such scenarios. Research on measurement, modeling, and analysis of network traffic and infrastructure always face new challenges as new applications are continuously deployed.
In this talk, I will discuss the rise of IoE and XaaS as well as the demand for advanced networking services, paradigms, and architectures (e.g., SDN, NFV). I will give an overview of some challenges, opportunities, and directions in these research topics.
Levelwise PageRank with Loop-Based Dead End Handling Strategy : SHORT REPORT ...Subhajit Sahu
Abstract — Levelwise PageRank is an alternative method of PageRank computation which decomposes the input graph into a directed acyclic block-graph of strongly connected components, and processes them in topological order, one level at a time. This enables calculation for ranks in a distributed fashion without per-iteration communication, unlike the standard method where all vertices are processed in each iteration. It however comes with a precondition of the absence of dead ends in the input graph. Here, the native non-distributed performance of Levelwise PageRank was compared against Monolithic PageRank on a CPU as well as a GPU. To ensure a fair comparison, Monolithic PageRank was also performed on a graph where vertices were split by components. Results indicate that Levelwise PageRank is about as fast as Monolithic PageRank on the CPU, but quite a bit slower on the GPU. Slowdown on the GPU is likely caused by a large submission of small workloads, and expected to be non-issue when the computation is performed on massive graphs.
Adjusting primitives for graph : SHORT REPORT / NOTESSubhajit Sahu
Graph algorithms, like PageRank Compressed Sparse Row (CSR) is an adjacency-list based graph representation that is
Multiply with different modes (map)
1. Performance of sequential execution based vs OpenMP based vector multiply.
2. Comparing various launch configs for CUDA based vector multiply.
Sum with different storage types (reduce)
1. Performance of vector element sum using float vs bfloat16 as the storage type.
Sum with different modes (reduce)
1. Performance of sequential execution based vs OpenMP based vector element sum.
2. Performance of memcpy vs in-place based CUDA based vector element sum.
3. Comparing various launch configs for CUDA based vector element sum (memcpy).
4. Comparing various launch configs for CUDA based vector element sum (in-place).
Sum with in-place strategies of CUDA mode (reduce)
1. Comparing various launch configs for CUDA based vector element sum (in-place).
Explore our comprehensive data analysis project presentation on predicting product ad campaign performance. Learn how data-driven insights can optimize your marketing strategies and enhance campaign effectiveness. Perfect for professionals and students looking to understand the power of data analysis in advertising. for more details visit: https://bostoninstituteofanalytics.org/data-science-and-artificial-intelligence/
StarCompliance is a leading firm specializing in the recovery of stolen cryptocurrency. Our comprehensive services are designed to assist individuals and organizations in navigating the complex process of fraud reporting, investigation, and fund recovery. We combine cutting-edge technology with expert legal support to provide a robust solution for victims of crypto theft.
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We guide you through the process of filing a valid police report. Our support team provides detailed instructions on which police department to contact and helps you complete the necessary paperwork within the critical 72-hour window.
Launching the Refund Process:
Our team of experienced lawyers can initiate lawsuits on your behalf and represent you in various jurisdictions around the world. They work diligently to recover your stolen funds and ensure that justice is served.
At StarCompliance, we understand the urgency and stress involved in dealing with cryptocurrency theft. Our dedicated team works quickly and efficiently to provide you with the support and expertise needed to recover your assets. Trust us to be your partner in navigating the complexities of the crypto world and safeguarding your investments.
Techniques to optimize the pagerank algorithm usually fall in two categories. One is to try reducing the work per iteration, and the other is to try reducing the number of iterations. These goals are often at odds with one another. Skipping computation on vertices which have already converged has the potential to save iteration time. Skipping in-identical vertices, with the same in-links, helps reduce duplicate computations and thus could help reduce iteration time. Road networks often have chains which can be short-circuited before pagerank computation to improve performance. Final ranks of chain nodes can be easily calculated. This could reduce both the iteration time, and the number of iterations. If a graph has no dangling nodes, pagerank of each strongly connected component can be computed in topological order. This could help reduce the iteration time, no. of iterations, and also enable multi-iteration concurrency in pagerank computation. The combination of all of the above methods is the STICD algorithm. [sticd] For dynamic graphs, unchanged components whose ranks are unaffected can be skipped altogether.
Chatty Kathy - UNC Bootcamp Final Project Presentation - Final Version - 5.23...John Andrews
SlideShare Description for "Chatty Kathy - UNC Bootcamp Final Project Presentation"
Title: Chatty Kathy: Enhancing Physical Activity Among Older Adults
Description:
Discover how Chatty Kathy, an innovative project developed at the UNC Bootcamp, aims to tackle the challenge of low physical activity among older adults. Our AI-driven solution uses peer interaction to boost and sustain exercise levels, significantly improving health outcomes. This presentation covers our problem statement, the rationale behind Chatty Kathy, synthetic data and persona creation, model performance metrics, a visual demonstration of the project, and potential future developments. Join us for an insightful Q&A session to explore the potential of this groundbreaking project.
Project Team: Jay Requarth, Jana Avery, John Andrews, Dr. Dick Davis II, Nee Buntoum, Nam Yeongjin & Mat Nicholas
4. Data Science Pipeline
•Analytic Data
•Analytic Code
•Documentation
•Distribution
•ElementsofReproducibleResearch
Report Writing for Data Science in R, Roger D. Peng, 2016
5. 1. Stating and refining the question
2. Exploring the data
3. Building formal statistical models
4. Interpreting the results
5. Communicating the results
Epicycle of Analysis
The Art of Data Science, A Guide for Anyone Who Works with Data, Roger D. Peng and Elizabeth Matsui, 2016
6. • summarize the measurements in a
single data set without further
interpretation
•Descriptive
• Searching for discoveries, trends,
correlations, or relationships
between multiple variables to
generate ideas or hypotheses
Exploratory
• quantifying whether an observed
pattern will likely hold beyond the
data set in hand
Inferential
• uses a subset of measurements (the
features) to predict another
measurement (the outcome)
Predictive
• what happens to one measurement
if you make another measurement
change
Causal
• changing one measurement always
and exclusively leads to a specific,
deterministic behavior in another
Deterministic
The Elements of Data
Analytic Style, A guide for
people who want to analyze
data, Jeff Leek, 2015
8. Why use EDA - Summary
• Maximize insight into a data set
• Uncover underlying structure
• Extract important variables
• Detect outliers and anomalies
• Test underlying assumptions
• Develop parsimonious models
• Determine optimal factor
settings
•NIST
• Show comparisons
• Show causality, mechanism,
explanation
• Show multivariate data
• Integrate multiple modes of
evidence
• Describe and document the
evidence
• Content is king
•JHUniversity
9. Answer to initial questions
What is a typical value for a certain feature?
What is the uncertainty for a typical value of a
feature?
What is a good distributional fit for a feature?
What is the percentile distribution?
Does modification on one variable have an
effect another variable?
Does a factor have an effect on performance
metrics?
What are the most important factors?
What is the best function for relating a
response variable to other variables?
What are the best settings for factors
(i.e. levels)?
Can we separate signal from noise?
Can we extract any structure from multivariate
data?
Does the data have outliers?
12. Practical Steps
•Before performing any measurements or simulation
• Identify
• Performance Metrics
• Performance Factors and Levels
• Caution: sometimes you have to guess the ranges for the levels
• Use an educated guess
Don’t run tons of simulations / experiments (As previously discussed)
Plot quick and dirty graphs
• No need for titles, labels
13. Some examples of EDA Graphs - WiFi Data (simulated)
• “Vendor” - factor / levels: LinkSys, …
• “Model“ – factor / Levels: GST200, …
• "Users_Max_Rate“ - factor (background traffic) /
levels: 1.6, 1.8,…,7.0 Mbps
• "Year“ – factor / Levels: 1999, 2008
• "BER“ – factor / Levels: 4, 5, 6, and 8
• "Type“ – factor (type of user) / Levels: 4, f, r
• Rate – performance metric (Mbps)
• Distance - factor (distance from the AP) / “Levels:
50,100m
Features
(Observation
Variables)
27. References
• NIST’s Handbook of Statistics Engineering (online)
• Report Writing for Data Science in R, Roger D. Peng, 2016
• The Art of Data Science, A Guide for Anyone Who Works with Data, Roger D.
Peng and Elizabeth Matsui, 2016
• The Elements of Data Analytic Style, A guide for people who want to analyze
data, Jeff Leek, 2015
Editor's Notes
Left figure: Report Writing for Data Science in R, Roger D. Peng, 2016
Left figure: The Art of Data Science, A Guide for Anyone Who Works with Data, Roger D. Peng and Elizabeth Matsui, 2016
Figure and Text: The Elements of Data Analytic Style, A guide for people who want to analyze data, Jeff Leek, 2015