24 Aug 2004
CS 5244: Indexing / Classification
45
STARTS: A Metasearching Protocol
¡Defines:
lQuery
language
lResults
format
lMetadata for the collection
¡No specified
transport layer or
implementation
¡Built to
assist metasearchers.
Example of metadata:
Stemming = no
#
of docs = 20,000
…
Diabetes è
TF:12, DF: 4
XML è TF:1200, DF:750
…
Query Operators
Frequency of Collection
Why does the metadata help metasearchers?
¡ Hint: Ranking documents