'Postings lists' presentation slideshows

String algorithms and data structures (or, tips and tricks for index design)

1.02k views • 87 slides

Introducing Information Retrieval and Web Search

Introducing Information Retrieval and Web Search. Information Retrieval. Information Retrieval (IR) is finding material (usually documents) of an unstructured nature (usually text) that satisfies an information need from within large collections (usually stored on computers) .

843 views • 64 slides

Index Construction: sorting

691 views • 61 slides

Index Construction: sorting

614 views • 61 slides

984 views • 58 slides

Instructor : Dr. Sumanta Guha

Information Retrieval and Data Mining (AT71.07) Comp. Sc. and Inf. Mgmt. Asian Institute of Technology. Instructor : Dr. Sumanta Guha Slide Sources : Introduction to Information Retrieval book slides from Stanford University, adapted and supplemented

799 views • 58 slides

Faster TF-IDF

Faster TF-IDF. David Kauchak cs160 Fall 2009 adapted from: http://www.stanford.edu/class/cs276/handouts/ lecture6-tfidf. ppt. Administrative. Assignment 1 Assignment 2 Look at the assignment by Wed! New turnin procedure Class participation. Stoplist and dictionary size.

688 views • 52 slides

Information Retrieval

Information Retrieval. Information Retrieval (IR) is finding material (usually documents) of an unstructured nature (usually text) that satisfies an information need from within large collections (usually stored on computers). Sec. 1.1. Unstructured data in 1680.

624 views • 46 slides

CS 476/676

CS 476/676. Chapter 4 Index construction. Index construction. How do we construct an index? What strategies can we use with limited main memory?. Hardware basics. Access to data in memory is much faster than access to data on disk.

638 views • 43 slides

Introduction to Information Retrieval (Manning, Raghavan, Schutze) Chapter 3

523 views • 38 slides

Introduction to Information Retrieval (Manning, Raghavan, Schutze) Chapter 3

515 views • 38 slides

Query-Driven Indexing for P2P Text Retrieval

370 views • 28 slides

Elementary IR: Scalable Boolean Text Search

297 views • 22 slides

Text/Web Search II: Ranking & Crawling

215 views • 21 slides

Ranking Results in IR Search

285 views • 20 slides

Ranking Results in IR Search

206 views • 10 slides