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Deriving concept hierarchies from text
This paper presents a means of automatically deriving a hierarchical organization of concepts from a set of documents without use of training data or standard clustering techniques, using a type of co-occurrence known as subsumption.
Test Collection Based Evaluation of Information Retrieval Systems
- M. Sanderson
- Computer ScienceFound. Trends Inf. Retr.
- 3 June 2010
This tutorial and review shows that despite its age, this long-standing evaluation method is still a highly valued tool for retrieval research.
Advantages of query biased summaries in information retrieval
Investigation into the utility of document summarisation in the context of information retrieval and the application of so called query biased (or user directed) summaries indicate that the use of query biased summaries significantly improves both the accuracy and speed of user relevance judgements.
Information retrieval system evaluation: effort, sensitivity, and reliability
It is found that the t-test is highly reliable (more so than the sign or Wilcoxon test), and is far more reliable than simply showing a large percentage difference in effectiveness measures between IR systems.
Word sense disambiguation and information retrieval
- M. Sanderson
- PsychologySIGIR '94
- 1 August 1994
From these results it has become clear that more basic research is needed to investigate the relationship between sense ambiguity, disambiguation, and IR.
Analyzing geographic queries
The aim of this study was to analyze the 2001 Excite query log to investigate the extent and variation of Web queries containing geographic terms. In particular, an investigation into what people …
Spatial information retrieval and geographical ontologies an overview of the SPIRIT project
A brief survey of existing facilities for geographical information retrieval on the web is provided, before describing a set of tools and techniques that are being developed in the project SPIRIT : Spatially-Aware Information Retrieval on the Internet.
Ambiguous queries: test collections need more sense
- M. Sanderson
- Computer ScienceSIGIR '08
- 20 July 2008
Tests show the impact of query ambiguity on an IR system: it is shown that conventional systems are incapable of dealing effectively with such queries and that current assumptions about how to improve search effectiveness do not hold when searching on this common query type.
INQUERY and TREC-8
This year the Center for Intelligent Information Retrieval at the University of Massachusetts participated in three of the tracks: the cross-language, question answering, and query tracks, and showed how query expansion compensates for some of the problems that can occurs in query formulation.
The CLEF Cross Language Image Retrieval Track (ImageCLEF) 2004
ImageCLEF, the cross language image retrieval track of the Cross Language Evaluation Forum (CLEF), is described, which was designed to simulate the situation in which users would express their search request in natural language but require visual documents in return.