Dartmouth College Computer Science
Technical Report series
TR search TR listserv
|By author:||A B C D E F G H I J K L M N O P Q R S T U V W X Y Z|
|By number:||2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, 1992, 1991, 1990, 1989, 1988, 1987, 1986|
We introduce a new, probabilistic model for combining the outputs of
an arbitrary number of query retrieval systems. By gathering simple
statistics on the average performance of a given set of query
retrieval systems, we construct a Bayes optimal mechanism for
combining the outputs of these systems. Our construction yields a
metasearch strategy whose empirical performance nearly always
exceeds the performance of any of the constituent systems. Our
construction is also robust in the sense that if ``good'' and
``bad'' systems are combined, the performance of the composite is
still on par with, or exceeds, that of the best constituent system.
Finally, our model and theory provide theoretical and empirical
avenues for the improvement of this metasearch strategy.
Preliminary version appeared in SIGIR 2000.
Bibliographic citation for this report: [plain text] [BIB] [BibTeX] [Refer]
Or copy and paste:
Javed A. Aslam and Mark Montague, "Bayes Optimal Metasearch: A Probabilistic Model for Combining the Results of Multiple Retrieval Systems." Dartmouth Computer Science Technical Report TR2000-382, December 2000.
Notify me about new tech reports.
Search the technical reports.
To receive paper copy of a report, by mail, send your address and the TR number to reports AT cs.dartmouth.edu
Copyright notice: The documents contained in this server are included by the contributing authors as a means to ensure timely dissemination of scholarly and technical work on a non-commercial basis. Copyright and all rights therein are maintained by the authors or by other copyright holders, notwithstanding that they have offered their works here electronically. It is understood that all persons copying this information will adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder.
Technical reports collection maintained by David Kotz.