Introduction to Information Retrieval
Introduction to Information Retrieval
Introduction to Information Retrieval
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<strong>Introduction</strong> <strong>to</strong> <strong>Information</strong> <strong>Retrieval</strong><br />
Examples for idf<br />
• Compute idf t using the formula:<br />
term df t idf t<br />
calpurnia<br />
animal<br />
sunday<br />
fly<br />
under<br />
the<br />
1<br />
100<br />
1000<br />
10,000<br />
100,000<br />
1,000,000<br />
6<br />
4<br />
3<br />
2<br />
1<br />
0<br />
24
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