tailieunhanh - Báo cáo khoa học: "Extracting Social Networks and Biographical Facts From Conversational Speech Transcripts"

We present a general framework for automatically extracting social networks and biographical facts from conversational speech. Our approach relies on fusing the output produced by multiple information extraction modules, including entity recognition and detection, relation detection, and event detection modules. We describe the specific features and algorithmic refinements effective for conversational speech. | Extracting Social Networks and Biographical Facts From Conversational Speech Transcripts Hongyan Jing Nanda Kambhatla Salim Roukos IBM . Watson Research Center IBM India Research Lab IBM . Watson Research Center 1101 Kitchawan Road EGL Domlur Ring Road 1101 Kitchawan Road Yorktown Heights NY 10598 Bangalore - 560071 India Yorktown Heights NY 10598 hjing@ kambhatla@ roukos@ Abstract We present a general framework for automatically extracting social networks and biographical facts from conversational speech. Our approach relies on fusing the output produced by multiple information extraction modules including entity recognition and detection relation detection and event detection modules. We describe the specific features and algorithmic refinements effective for conversational speech. These cumulatively increase the performance of social network extraction from to for the development set and from to for the test set as measured by f-measure on the ties within a network. The same framework can be applied to other genres of text we have built an automatic biography generation system for general domain text using the same approach. 1 Introduction A social network represents social relationships between individuals or organizations. It consists of nodes and ties. Nodes are individual actors within the networks generally a person or an organization. Ties are the relationships between the nodes. Social network analysis has become a key technique in many disciplines including modern sociology and information science. In this paper we present our system for automatically extracting social networks and biographical facts from conversational speech transcripts by integrating the output of different IE modules. The IE modules are the building blocks the fusing module depicts the ways of assembling 1040 these building blocks. The final output depends on which fundamental IE modules are used and how their results are .

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