RMIT University at TREC 2008: Legal Track
ROYAL MELBOURNE INST OF TECH (AUSTRALIA)
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This paper reports on the participation of RMIT university in the 2008 TREC Legal Track Ad Hoc task. OCR errors can corrupt the document view formed by an information retrieval system, and substantially hinder the successful retrieval of relevant documents for user queries. In previous research, the presence of errors in OCR text was observed to lead to unstable and unpredictable retrieval effectiveness. In this study, we investigate the effects of OCR error minimization - through de-hyphenation of terms, and the removal of corrupted or noise terms - on retrieval performance. Our results indicate that removing noise terms can lead to significant savings in terms of index size.
- Information Science