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16

TREC
2000

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Information Space Based on HTML Structure

13 years 5 months ago

Information Space Based on HTML Structure

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The main goal for the Information Space system for TREC9 was early precision. To facilitate this, an emphasis was placed on seeking matches from only the TITLE, H1, H2 and H3 tags in the Web (wt10G) and large Web (wt100) document collections. Ranking of documents was based on a combination of Boolean union sets, term weights, and principal components analysis (PCA). Very large sparse cooccurrence matrices were created for term weighting and PCA. The Information Space system is part of a larger general software package called IRTools.

Gregory B. Newby

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Information Space | Principal Components Analysis | Sparse Cooccurrence Matrices | TREC 2000 | TREC 2008 |

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Added	01 Nov 2010
Updated	01 Nov 2010
Type	Conference
Year	2000
Where	TREC
Authors	Gregory B. Newby

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