TAILIEUCHUNG - Báo cáo khoa học: "Are These Documents Written from Different Perspectives? A Test of Different Perspectives Based On Statistical Distribution Divergence"

In this paper we investigate how to automatically determine if two document collections are written from different perspectives. By perspectives we mean a point of view, for example, from the perspective of Democrats or Republicans. We propose a test of different perspectives based on distribution divergence between the statistical models of two collections. Experimental results show that the test can successfully distinguish document collections of different perspectives from other types of collections. . | Are These Documents Written from Different Perspectives A Test of Different Perspectives Based On Statistical Distribution Divergence Wei-Hao Lin Language Technologies Institute School of Computer Science Carnegie Mellon University Pittsburgh PA 15213 . whlin@ Alexander Hauptmann Language Technologies Institute School of Computer Science Carnegie Mellon University Pittsburgh PA 15213 . alex@ Abstract In this paper we investigate how to automatically determine if two document collections are written from different perspectives. By perspectives we mean a point of view for example from the perspective of Democrats or Republicans. We propose a test of different perspectives based on distribution divergence between the statistical models of two collections. Experimental results show that the test can successfully distinguish document collections of different perspectives from other types of collections. 1 Introduction Conflicts arise when two groups of people take very different perspectives on political socioeconomical or cultural issues. For example here are the answers that two presidential candidates John Kerry and George Bush gave during the third presidential debate in 2004 in response to a question on abortion 1 Kerry What is an article of faith for me is not something that I can legislate on somebody who doesn t share that article of faith. I believe that choice is a woman s choice. It s between a woman God and her doctor. And that s why I support that. 2 2 Bush I believe the ideal world is one in which every child is protected in law and welcomed to life. I understand there s great differences on this issue of abortion but I believe reasonable people can come together and put good law in place that will help reduce the number of abortions. After reading the above transcripts some readers may conclude that one takes a pro-choice perspective while the other takes a pro-life perspective the two dominant perspectives in the abortion .

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