Subgraph Similarity Example
April 10, 2012
“(a) A sagittal reconstruction of a coronally acquired magnetic resonance imaging (MRI) scan, at the level on which the cingulate gyrus was measured. The area outlined represents the portion of the scan used to orient the operator to the landmarks of the cingulate. A box has been placed over the region of interest in one […]
Measure and Visualize Semantic Similarity Between Subgraphs
March 19, 2012
As I blogged previously, I am working on measuring the performance of my keyword extraction algorithms. The confusion matrix approach I have implemented is quite ‘harsh’. It ignores any semantic information and simply treats the concepts as words, and counts hits and misses between two sets of concepts. To benefit from the semantic information described […]
Force-Directed Graphs: Playing around with D3.js
February 27, 2012
Update: Newer example of Force-Directed d3.js Graph here: Measure and Visualize Semantic Similarity Between Subgraphs I recently replaced python-graph in my code with NetworkX, a slightly more sophisticated graph library for Python. Besides some more advanced algorithms for graph analysis (comparison, unison etc.) which can prove useful when analyzing data (comparing human data with mine, for […]