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Probabilistic hyperspace analogue to language

Published: 15 August 2005 Publication History

Abstract

Song and Bruza [6] introduce a framework for Information Retrieval(IR) based on Gardenfor's three tiered cognitive model; Conceptual Spaces[4]. They instantiate a conceptual space using Hyperspace Analogue to Language (HAL[3] to generate higher order concepts which are later used for ad-hoc retrieval. In this poster, we propose an alternative implementation of the conceptual space by using a probabilistic HAL space (pHAL). To evaluate whether converting to such an implementation is beneficial we have performed an initial investigation comparing the concept combination of HAL against pHAL for the task of query expansion. Our experiments indicate that pHAL outperforms the original HAL method and that better query term selection methods can improve performance on both HAL and pHAL.

References

[1]
J. Barwise and J. Seligman. Information Flow: The Logic of Distributed Systems. Number 44 in Cambridge Tracts in Theoretical Computer Science. 1997.
[2]
P. D. Bruza and D. Song. A comparison of various approaches for using probabilistic dependencies in language modelling. In The 26th ACM SIGIR, pages 419--420. ACM Press, 2003.
[3]
B. C., K. Livesay, and K. Lund. Explorations in context space: Words, sentences, discourse. Discourse Processes, 25(2-3):211--257, 1998.
[4]
P. Gardenfors. Conceptual Spaces: The Geometry of Thought. MIT Press, 2000.
[5]
W. Lowe and S. McDonald. The direct route: Priming in semantic space. In Proceedings of the Seventeen Annual Meeting of the Cognitive Science Society, pages 600--665, 2000.
[6]
D. Song and P. D. Bruza. Discovering information flow using a high dimensional conceptual space. In The 24th ACM SIGIR, pages 327--333, New Orleans, LO, 2001.
[7]
C. Zhai and J. Lafferty. A study of smoothing methods for language models applied to ad hoc information retrieval. In The 24th ACM SIGIR, pages 49--56, New Orleans, LO, 2001.

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    cover image ACM Conferences
    SIGIR '05: Proceedings of the 28th annual international ACM SIGIR conference on Research and development in information retrieval
    August 2005
    708 pages
    ISBN:1595930345
    DOI:10.1145/1076034
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    New York, NY, United States

    Publication History

    Published: 15 August 2005

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