Index

numbers

20NG

defined, 130

shrinkage testing, 156

A

About.com, 125

absolute URLs, 26

absorbing features, 185–188

link-derived, 186–187

from neighboring pages, 185–188

textual, 185–186

address resolution, 22

agglomerative clustering. See bottom-up clustering

Alexa Internet, 117

AltaVista, 6–7, 45, 239

Clever comparison, 239–240

Mercator, 20

anchor text, 63, 227–228

“ankle-deep semantics,” 289

approximate string matching, 66

Apte-Damerau-Weiss system, 174

Ask Jeeves, 303

aspect models, 109–112, 198–199

authorities

defined, 213

diffusion, unwanted, 234

multiple vectors, 216

rank correlation, 238

score, 213

score, precomputing and, 214

See also hubs

Automatic Resource Compilation (ARC) system, 238

average precision, 54

B

B&H algorithm, 225 ...

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