'Relevant items' diaporamas de présentation

Evaluating search engines

Evaluating search engines. Measures for a search engine. How fast does it index Number of documents/hour (Average document size) How fast does it search Latency as a function of index size Expressiveness of query language Ability to express complex information needs

915 views • 54 slides

The PATENTSCOPE search system: CLIR

The PATENTSCOPE search system: CLIR. February 2013. Sandrine Ammann Marketing & Communications Officer. To the PATENTSCOPE search system webinar CLIR. Agenda. CLIR Definition History Search with CLIR Usefulness Golden rules Technicalities Q & A session. CLIR.

728 views • 53 slides

Performance Evaluation of Information Retrieval Systems

Performance Evaluation of Information Retrieval Systems. Many slides in this section are adapted from Prof. Joydeep Ghosh (UT ECE) who in turn adapted them from Prof. Dik Lee (Univ. of Science and Tech, Hong Kong). Why System Evaluation?.

591 views • 49 slides

Information Retrieval and Web Search

Vasile Rus, PhD vrus@memphis.edu www.cs.memphis.edu/~vrus/teaching/ir-websearch/. Information Retrieval and Web Search. Evaluation in Information Retrieval. Outline. There are many retrieval models/ algorithms/ systems, which one is the best? What is the best component for:

473 views • 47 slides

Performance Evaluation of Information Retrieval Systems

Performance Evaluation of Information Retrieval Systems. Many slides in this section are adapted from Prof. Joydeep Ghosh (UT ECE) who in turn adapted them from Prof. Dik Lee (Univ. of Science and Tech, Hong Kong). Why System Evaluation?.

477 views • 45 slides

Performance Evaluation

Performance Evaluation. Why System Evaluation?. There are many retrieval models/ algorithms/ systems, which one is the best? What is the best component for: Ranking function (dot-product, cosine, …) Term selection (stopword removal, stemming…) Term weighting (TF, TF-IDF,…)

681 views • 43 slides

Explanation given so far

The Policymakers or the Manipulators: Who Are to Blame for the Recent Share Market Bubble and the Crash?. Explanation given so far. Most of the investors and experts are blaming -The market regulators and - The so-called market manipulators

477 views • 38 slides

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??? 435: ????????????? ???????? ??????????. User Modeling Adaptation Personalization. Based on lectures given by Dr. Vania Dimitrova , University of Leeds, UK. Can Human-Computer interaction become personalised? Adding personalisation features in computer systems. The Personalisation Buzz.

535 views • 33 slides

Titre

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The Search for Meaning and Semantics: Taxonomies Get It Done

391 views • 30 slides

Evaluations in information retrieval

Evaluations in information retrieval. Evaluations in information retrieval: summary. The following gives an overview of approaches that are applied to assess the quality of information retrieval systems, and more concretely of search systems

329 views • 23 slides

Usage Patterns of Collaborative Tagging System

Usage Patterns of Collaborative Tagging System. Golder and Huberman , 2006 Journal of Information Science. Introduction. Collaborative tagging: process by which many users add keywords(descriptive terms) to shared content.

364 views • 15 slides

Practical Aspects of Creating Dual Degree Programs

172 views • 8 slides