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Understanding the role of conceptual relations in Word Sense Disambiguation. Presenter: Tsai Tzung Ruei Authors: David Fernandez-Amoros, Ruben Heradio. 國立雲林科技大學 National Yunlin University of Science and Technology. ESA 2011. Outline. Motivation Objective Methodology Experiments

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## Understanding the role of conceptual relations in Word Sense Disambiguation

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**Understanding the role of conceptual relations in Word Sense**Disambiguation Presenter: Tsai TzungRuei Authors: David Fernandez-Amoros, Ruben Heradio 國立雲林科技大學 National Yunlin University of Science and Technology ESA 2011**Outline**• Motivation • Objective • Methodology • Experiments • Conclusion • Comments**Motivation**• In Spring is my favorite season.**Objective**• To undertake an in-depth study (through anexhaustive evaluation) of the role that conceptual relations canplay with respect to accurate WSD.**Methodology**• Agirre and Rigau (1996) form form sense1 sense3 words, word sense2**Methodology**Agirreand Rigau (1996) We look up the sensesof all the wordforms in the window, for each sense of each word we take a number of concepts associated by relation R and weight them according to a formula. Window= 5**Experiments**• Performance over nouns • Type of conceptual relation**Experiments**• Conceptual density formula • Agirreand Rigau (1996) • The LF (logarithmic formula) formula**Experiments**• Behavior over different text categories • Weighting schemes**Experiments**• Evaluation over SENSEVAL collections**Conclusion**• The performance of conceptual relations is relatively lowin terms of recall, indicating that this relations should be combined with other types of information.**Comments**• Advantage • References and experiments are complete and rich. • Drawback • Some mistakes • Application • Word Sense Disambiguation

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