Pablo Castells, Jun Wang, Ruben Lara, and Dell Zhang are organising an ACM RecSys-2011 workshop on Novelty and Diversity in Recommender Systems (DiveRS). A special issue of ACM TIST in the scope of the workshop will be announced after the conference. Authors of accepted papers will be invited to submit an extended version.
Friday, June 17, 2011
A couple of metrics
It is often desirable to measure the dissimilarity or distance between items using a proper metric.
- Jaccard coefficient can be converted to a metric by by subtracting the Jaccard coefficient from 1.
- Kullback–Leibler divergence can be converted to a metric by taking the square root of its symmetric version Jensen–Shannon divergence.
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