Paper: Automatic Detection and Classification of Social Events

ACL ID D10-1100
Title Automatic Detection and Classification of Social Events
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2010
Authors

In this paper we introduce the new task of social event extraction from text. We distin- guish two broad types of social events depend- ing on whether only one or both parties are aware of the social contact. We annotate part of Automatic Content Extraction (ACE) data, and perform experiments using Support Vec- tor Machines with Kernel methods. We use a combination of structures derived from phrase structure trees and dependency trees. A char- acteristic of our events (which distinguishes them from ACE events) is that the participat- ing entities can be spread far across the parse trees. We use syntactic and semantic insights to devise a new structure derived from depen- dency trees and show that this plays a role in achieving the best performing system for both social event detection and ...