Combining Association Measures for Collocation Extraction

We introduce the possibility of combining lexical association measures and present empirical results of several methods employed in automatic collocation extraction. First, we present a comprehensive summary overview of association measures and their performance on manually annotated data evaluated by precision-recall graphs and mean average precision. Second, we describe several classification methods for combining association measures, followed by their evaluation and comparison with individual measures. Finally, we propose a feature selection algorithm significantly reducing the number of combined measures with only a small performance degradation.

• Type: Conference
• Year: 2006
• Where: ACL
• Authors: Pavel Pecina, Pavel Schlesinger
• Keywords: ACL 2006, ACL 2007, Association Measures, Individual Measures, Lexical Association Measures