2009 Node XL Overview: Social Network Analysis in Excel 2007
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2009 Node XL Overview: Social Network Analysis in Excel 2007

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A quick overview of the features of NodeXL, the network overview, discovery, and exploration add-in for Excel 2007. This tool allows for visualizing directed graphs and social networks within Excel. ...

A quick overview of the features of NodeXL, the network overview, discovery, and exploration add-in for Excel 2007. This tool allows for visualizing directed graphs and social networks within Excel. It provides several network metrics and manipulation tools. Networks can be imported from Twitter and personal email.

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2009 Node XL Overview: Social Network Analysis in Excel 2007 2009 Node XL Overview: Social Network Analysis in Excel 2007 Presentation Transcript

  • NodeXL: Project Network NodeXL Network overview, discovery and exploration for Microsoft Excel 2007 http://www.codeplex.com/nodexl
  • NodeXL Network overview, discovery and exploration for Microsoft Excel 2007 http://www.codeplex.com/nodexl Dan Fay ( MSR Redmond ) Cody Dunne ( U Maryland ) Marc Smith ( Telligent ) Vladimir Barash ( MSR Silicon Valley / Cornell ) Tony Capone ( MSR Redmond ) Natasa Milic-Frayling ( MSR Cambridge ) Eduarda Mendes Rodrigues ( MSR Cambridge ) Eric Gleave ( U Washington ) Adam Perer ( U Maryland ) Ben Shneiderman ( U Maryland )
  • Problem: No network chart in Excel
  • NodeXL : Network analysis and visualization tool
    • Cyclic Graph data structures have limited support in existing Office tools
    • Network analysis is of growing importance in academic, commercial, and Internet social media contexts
    • Existing network analysis tools have command line interfaces or demand steep learning curves
    • Many network data sets already live in Excel!
  • NodeXL: Goal: Make SNA easier
    • Existing Social Network Tools are challenging for many novice users
    • Tools like Excel are widely used
    • Leveraging a spreadsheet as a host for SNA lowers barriers to network data analysis and display
  • Social Network Analysis Toolkit Tools to support the study of the social network structure social media and other network structures Sociologist “ What are the structures of communication in scientific discussions?” User Experience Information Visualization “ What are the best UI/UX workflows for network analysis tools?” Computer Scientist Algorithmicist for Social Network Measures “ What are the measures and algorithms needed for understanding networks?”
  • NodeXL: N etwork O verview, D iscovery and E xploration for E x ce l
    • Leverage spreadsheet for storage of edge and vertex data
  •  
  • NodeXL: Import data from multiple sources:
    • Multiple network “spigots” provide edge lists from several common sources and data formats.
  • NodeXL: Import edges from other spreadsheets
    • Map data columns from existing spreadsheets
  • NodeXL: Merge Duplicate Edges (if any)
    • Aggregate duplicate edges and add a “Tie Strength Column” to store the count of “duplicates” (edges could be from multiple time slices).
  • NodeXL: Calculate Network Analytics and Metrics
    • Starter library of basic network measures
    • Users may unselect resource intensive measures
  • NodeXL: Insert network sub-graph images
    • Create “ego-centric” networks for each node in the network
    • Select number of degrees out to include
  • NodeXL: Display nodes sorted by network attributes u sing Excel Data|Sort
  • NodeXL: Get reports of global network metrics Metric Value Graph Type Directed Unique Edges 7,852 Edges With Duplicates 0 Total Edges 7,852 Self-Loops 10 Vertices 174 Graph Density 0.260514259
  • NodeXL: Display whole graph
    • Toggle display of whole graph display pane with Show/Hide Graph Pane
  • NodeXL: Create a new whole graph display
    • Select “Read Workbook” to load the graph into the Display Pane.
    • The title “Document Actions” is imposed by Excel
  • NodeXL: Viewing the whole graph
  • NodeXL: Using Dynamic Filters to simplify the graph
    • Each data column (including dates) associated with an edge or vertex is exposed with a slider filter.
    • Filtered nodes and edges turn gray or become invisible
  • NodeXL: Apply dynamic filters to the data
  • NodeXL: Map data to display attributes
    • Map Edge and Vertex attributes to size, width, color, opacity, and shape
  • NodeXL: Decorated Network Graphs
  • NodeXL: filtered, decorated, labeled networks
  • NodeXL: Clustered networks
  • NodeXL: Filtered clusters
  • NodeXL: Add URLS to Right-click menu of Nodes
  • NodeXL: Import social networks from email
  • NodeXL: Import social networks from email
  • NodeXL Next Steps
    • Enhanced layout controls
      • Smart selection of nodes
    • Clustering and composite nodes
      • Add/remove a node to/from a cluster
      • Add/remove a node to/from a composite
    • Add social network data sources:
      • Twitter, YouTube, Facebook, Outlook, Messenger, etc.
    • Your suggestions?
  • NodeXL Partnerships and community
    • University of Maryland
    • Northwestern University
    • Ohio University
    • Stanford University
    • University of Pennsylvania
    • 5,000 + downloads on Codeplex
  • NodeXL Network overview, discovery and exploration for Microsoft Excel 2007 http://www.codeplex.com/nodexl Dan Fay ( MSR Redmond ) Cody Dunne ( U Maryland ) Marc Smith ( Telligent ) Vladimir Barash ( MSR Silicon Valley / Cornell ) Tony Capone ( MSR Redmond ) Natasa Milic-Frayling ( MSR Cambridge ) Eduarda Mendes Rodrigues ( MSR Cambridge ) Eric Gleave ( U Washington ) Adam Perer ( U Maryland ) Ben Shneiderman ( U Maryland )
  • NodeXL: Project Network NodeXL Network overview, discovery and exploration for Microsoft Excel 2007 http://www.codeplex.com/nodexl