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Proceedings Paper

Mapping texts through dimensionality reduction and visualization techniques for interactive exploration of document collections
Author(s): Alneu de Andrade Lopes; Rosane Minghim; Vinícius Melo; Fernando Vieira Paulovich
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Paper Abstract

The current availability of information many times impair the tasks of searching, browsing and analyzing information pertinent to a topic of interest. This paper presents a methodology to create a meaningful graphical representation of documents corpora targeted at supporting exploration of correlated documents. The purpose of such an approach is to produce a map from a document body on a research topic or field based on the analysis of their contents, and similarities amongst articles. The document map is generated, after text pre-processing, by projecting the data in two dimensions using Latent Semantic Indexing. The projection is followed by hierarchical clustering to support sub-area identification. The map can be interactively explored, helping to narrow down the search for relevant articles. Tests were performed using a collection of documents pre-classified into three research subject classes: Case-Based Reasoning, Information Retrieval, and Inductive Logic Programming. The map produced was capable of separating the main areas and approaching documents by their similarity, revealing possible topics, and identifying boundaries between them. The tool can deal with the exploration of inter-topics and intra-topic relationship and is useful in many contexts that need deciding on relevant articles to read, such as scientific research, education, and training.

Paper Details

Date Published: 16 January 2006
PDF: 12 pages
Proc. SPIE 6060, Visualization and Data Analysis 2006, 60600T (16 January 2006); doi: 10.1117/12.650899
Show Author Affiliations
Alneu de Andrade Lopes, Instituto de Ciências Matemáticas e de Computação (Brazil)
Rosane Minghim, Instituto de Ciências Matemáticas e de Computação (Brazil)
Vinícius Melo, Instituto de Ciências Matemáticas e de Computação (Brazil)
Fernando Vieira Paulovich, Instituto de Ciências Matemáticas e de Computação (Brazil)

Published in SPIE Proceedings Vol. 6060:
Visualization and Data Analysis 2006
Robert F. Erbacher; Jonathan C. Roberts; Matti T. Gröhn; Katy Börner, Editor(s)

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