## Monday, February 4, 2013

#### Semantic Similarity in a Taxonomy: An Information-Based Measure and its Application to Problems of Ambiguity in Natural Language. Philip Resnik. JAIR 1999

• Key Ideas
• Semantic similarity as a special case of semantic relatedness (relation is IS-A)
• For example, car-gasoline are related, but car-bicycle are similar.
• "... measures of similarity ... are seldom accompanied by an independent characterization of the phenomenon they are measuring ... The worth of a similarity measure is in its fidelity to human behavior, as measured by predictions of human performance on experimental tasks."
• Note
• polysemy as a special case of homonymy (the different meanings have a common aspect, and are hence called senses')
• For example, man' is polysemous (species, gender, adult) while `bank' is homonymous (river-edge, money-place).

• Key Ideas