@inproceedings{snow2006semantic, abstract = {We propose a novel algorithm for inducing semantic taxonomies. Previous algorithms for taxonomy induction have typically focused on independent classifiers for discovering new single relationships based on hand-constructed or automatically discovered textual patterns. By contrast, our algorithm flexibly incorporates evidence from multiple classifiers over heterogenous relationships to optimize the entire structure of the taxonomy, using knowledge of a word’s coordinate terms to help in determining its hypernyms, and vice versa. We apply our algorithm on the problem of sense-disambiguated noun hyponym acquisition, where we combine the predictions of hypernym and coordinate term classifiers with the knowledge in a preexisting semantic taxonomy (WordNet 2.1). We add 10; 000 novel synsets to WordNet 2.1 at 84% precision, a relative error reduction of 70% over a non-joint algorithm using the same component classifiers. Finally, we show that a taxonomy built using our algorithm shows a 23% relative F-score improvement over WordNet 2.1 on an independent testset of hypernym pairs.}, author = {Snow, Rion and Jurafsky, Daniel and Ng, Andrew Y.}, booktitle = {ACL}, crossref = {conf/acl/2006}, ee = {http://acl.ldc.upenn.edu/P/P06/P06-1101.pdf}, file = {snow2006semantic.pdf:snow2006semantic.pdf:PDF}, groups = {public}, interhash = {c0f5a3a22faa8dc4b61c9a717a6c9037}, intrahash = {8f39e7ac43a97719c5a746da02dbd964}, publisher = {The Association for Computer Linguistics}, timestamp = {2010-10-25 15:06:10}, title = {Semantic Taxonomy Induction from Heterogenous Evidence.}, url = {http://dblp.uni-trier.de/db/conf/acl/acl2006.html#SnowJN06}, username = {dbenz}, year = 2006 }