'Query term weights' presentation slideshows

Information Retrieval - Query expansion

Information Retrieval - Query expansion. Jian-Yun Nie. Recap of previous lectures. Indexing Traditional IR models Lemur toolkit How to run it How to modify it (for query expansion) Evaluating a search engine Benchmarks Measures. This lecture. Improving results

757 views • 71 slides

Information Retrieval - Query expansion

Information Retrieval - Query expansion. Jian-Yun Nie. Recap of previous lectures. Indexing Traditional IR models Lemur toolkit How to run it How to modify it (for query expansion) Evaluating a search engine Benchmarks Measures Classification and clustering. This lecture.

766 views • 64 slides

Full-Text Indexing

858 views • 38 slides

Search and Ye Shall Find (maybe)

497 views • 38 slides

347 views • 25 slides

Introduction

Introduction. IR systems usually adopt index terms to process queries Index term: a keyword or group of selected words any word (more general) Stemming might be used: connect: connecting, connection, connections An inverted file is built for the chosen index terms. Introduction. Docs.

348 views • 24 slides