RMIT University at TREC 2009: Web Track

reportActive / Technical Report | Accession Number: ADA517749 | Open PDF

Abstract:

RMIT participated in the 2009 Web Track tasks. Our submissions utilised the Zettair search engine to index and search the Category B subset of the ClueWeb collection used by the Web Track. The Web Track was composed of two tasks, a traditional adhoc retrieval task, and a new diversity task where participants attempted to retrieve documents covering a range of sub topics for each query. Sub topics were not provided with the queries. Our experiments utilised the well known measures Okapi BM25 and language modeling with Dirichlet smoothing for the adhoc task. For the diversity task we attempted to improve the diversity of query results by minimising the number of documents returned for a single domain. Runs were generated using a customised version of the Zettair search engine which was adapted to deal with the large scale ClueWeb collection.

Author(s):
Garcia, Steven
Author Organization(s):
ROYAL MELBOURNE INST OF TECH (AUSTRALIA)
Descriptive Note:
Conference paper
Supplementary Note:
Proceedings of the Eighteenth Text REtrieval Conference (TREC 2009) held in Gaithersburg, Maryland, November 17-20, 2009. The conference was co-sponsored by the National Institute of Standards and Technology (NIST) the Defense Advanced Research Projects Agency (DARPA) and the Advanced Research and Development Activity (ARDA).
Pagination:
0004

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Monitor Series:
X5
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.5.2_Task; JCA_5.5_Direct; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_1.2.3_Educating; JCA_8_Building Partnerships
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*QUEUEING THEORY, *INFORMATION RETRIEVAL, *DOCUMENTS, SUBJECT INDEXING, AUSTRALIA, WORDS(LANGUAGE), DIRICHLET INTEGRAL, SYMPOSIA, ADAPTIVE SYSTEMS
Field(s)/Group(s):
Information Science, Linguistics
Keyword(s):
*WEB TRACK, *ADHOC, *DIVERSITY, SUBSETS, SEARCH ENGINES, CLUBWEB COLLECTION, FOREIGN REPORTS
Report Date:
2009 Nov 01
Creation Date:
2010 Apr 28