'Inverted index construction documents' diaporamas de présentation

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) .

2.13k views • 188 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) .

853 views • 64 slides

INF 2914 Information Retrieval and Web Search

696 views • 52 slides

Qiuyue Wang qiuyuew@yahoo.com qiuyuew@ruc.edu.cn

Qiuyue Wang qiuyuew@yahoo.com qiuyuew@ruc.edu.cn. Course Goals. Introduce you basic concepts and techniques about information retrieval, including Document processing and representation Index construction and compression Vector space model Efficient top-k query processing Evaluation

615 views • 48 slides

CS276 Information Retrieval and Web Search Christopher Manning and Prabhakar Raghavan

CS276 Information Retrieval and Web Search Christopher Manning and Prabhakar Raghavan Lecture 1: Boolean retrieval. Information Retrieval.

628 views • 48 slides

Modified from Stanford CS276 slides Chap. 1: Boolean retrieval

Modified from Stanford CS276 slides Chap. 1: Boolean retrieval. Information Retrieval.

632 views • 46 slides

Information Retrieval

Information Retrieval . Boolean Queries (information retrieval slides based on the slides by Christopher Manning and Prabhakar Raghavan at Stanford). Information Retrieval.

598 views • 45 slides

Introduction to Information Retrieval (Manning, Raghavan, Schutze) Chapter 1 Boolean retrieval

Introduction to Information Retrieval (Manning, Raghavan, Schutze) Chapter 1 Boolean retrieval. Information Retrieval: IR. Finding material (usually document) of an unstructured nature (usually text) that satisfies an information need from within large collections

1.15k views • 44 slides

543 views • 43 slides

CS276A Text Retrieval and Mining

501 views • 41 slides

Inverted Index Construction

Inverted Index Construction. Adapted from Lectures by Prabhakar Raghavan (Yahoo and Stanford) and Christopher Manning (Stanford). Unstructured data in 1650. Which plays of Shakespeare contain the words Brutus AND Caesar but NOT Calpurnia ?

516 views • 32 slides

Indexing

Indexing. The essential step in searching. Review a bit. We have seen so far Crawling In the abstract and as implemented Your own code and Nutch If you are unsure about anything related to crawling, be sure to speak up now! Collection Building

221 views • 8 slides