Week 3
Interface implementation
Summary to Implementation
Finished:
framework: quite-independent modules including node-link view, configuration bar, time slider, multiple-layer timeline view (for global measures), connected scatter plot view
Issue:
To do
Interaction
😵 flexible selections - support search and add new node/link selections
🔥 encode more features
line: link type, link strength
circle: local measures in a brushed period (on demand)
🔥 measures: local / global
highlight: outliers in the value series
Complementary Views
1-d small multiples for connected scatter plot
Embed more measures:
link-centered: centrality
🔥 More data
Problems
selection is quite tricky and the source code is hard for me to understands
performance improvement: unclear of data storage and webGL, implementation of measure calculation is ineffective, should use matrix to obtain values instead of iteration over links.
Note: time aggregation is based on a greedy approach: given a granularity like day, do the aggregation from the start point.
Ideas for Discussion
Measures in Different Layers
"aggregated" refers to measures with a single value in a static network (dynamic network aggregated by time, i.e. network obtained using the brush) or the derived value from a series of networks.
"series" refers to a series of values obtained from a series of networks.
local
aggregated: encode values on node-link diagrams
series: connected scatter plot for comparison or simple 1d line chart.
subgraph
⭐ Create the other aggregation of the graph, whose node represents a subset of initial nodes. Use a popover to handle complicated interactions. Normally, a subgraph is greatly smaller than the original graph, with several groups taken into consideration.
aggregated: new node-link diagram
series: a multi-label timeline list for different measures
network
aggregated: a list of values or a more flexible calculator (?)
⭐ local measure distribution over nodes
series: multi-layer timeline view as James'.
Design Choice
see above to do list
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