WePS2 Attribute Extraction Task Sekine and Artiles WWW 2009 Workshop.

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Presentation transcript:

WePS2 Attribute Extraction Task Sekine and Artiles WWW 2009 Workshop

What are we going to do today? Web people search attribute extraction task overview Brief summary of two teams’ methods

Task Overview

Extract 18 attributes from a webpage

Corpus Training  17 person names Test  30 person names  2,883 web pages  2,421 have at least 1 attribute

Evaluation

CASIANED National Lab of Pattern Recognition (China) Precision: 8.5 Recall: 19

PolyUHK The Hong Kong Polytechnic University 1. Webpage type classification 2. Fragment style identification 3. NER and RDR (relation detection and recognition) Precision: 30.4 Recall: 7.6

PolyUHK The Hong Kong Polytechnic University 1. Webpage type classification 2. Fragment style identification 3. NER and RDR (relation detection and recognition) Precision: 30.4 Recall: 7.6

PolyUHK The Hong Kong Polytechnic University

1. Webpage type classification 2. Fragment style identification 3. NER and RDR (relation detection and recognition) Precision: 30.4 Recall: 7.6

PolyUHK The Hong Kong Polytechnic University

1. Webpage type classification 2. Fragment style identification 3. NER and RDR (relation detection and recognition) Precision: 30.4 Recall: 7.6