Information Retrieval - Precision e Recall

67 %
33 %
Information about Information Retrieval - Precision e Recall

Published on September 14, 2007

Author: mdplab

Source: slideshare.net

Description

Precision e Recall sono due delle metriche utilizzate per misurare le prestazioni di un Sistema di Information Retrieval (recupero delle informazioni). I Motori di Ricerca sono sistemi di Recupero delle Informazioni e quindi possono essere misurati con gli stessi parametri.

Add a comment

Related presentations

Related pages

Information Retrieval – Wikipedia

Information Retrieval [ˌɪnfɚˈmeɪʃən ɹɪˈtɹiːvəl] (IR) bzw. Informationsrückgewinnung, gelegentlich ungenau ... Recall und Precision ...
Read more

Precision and recall - Wikipedia

In pattern recognition and information retrieval with binary classification, precision (also called positive predictive value) is the fraction of retrieved ...
Read more

Information retrieval - Wikipedia

Information retrieval; Information seeking ... Traditional evaluation metrics, designed for Boolean retrieval or top-k retrieval, include precision and recall.
Read more

Precision und Recall [R. Ferber: Information Retrieval]

1.3.7.3: Precision und Recall Auf der Definition der Relevanz bauen die beiden am häufigsten verwendeten Evaluierungsmaße auf: Definition 7: Precision ...
Read more

Evaluation of ranked retrieval results - Stanford NLP Group

Evaluation of ranked retrieval results. ... Precision, recall, ... For a single information need, Average Precision is the average of the precision value ...
Read more

Information Retrieval 1 - uni-bamberg.de

Information Retrieval 1 ... 2.2 Recall und Precision . . . . . . . . . . . . . . . . . . . . . 63 ... 2.2.4 Recall/PrecisionWerte bei Systemen mit Ranking 74
Read more

Information Retrieval Lecture 7 - Evaluation in ...

Information Retrieval ... For an information need, the average precision is the ... I Evaluation for unranked retrieval: precision ,recall and
Read more

Vorlesung Information Retrieval - iai.uni-bonn.de

Information Retrieval Wintersemester 04/05 Dr. Jens E. Wolff ... Recall und Precision Neben der subjektiven Einschätzung der Retrieval Effektivität,
Read more

Information Retrieval - MH-Hannover: Startseite

14 Übung 3: Precision/ Recall (3min, paarweise) Ein Lehrbuch enthält Krankheitsbeschreibungen zu: Pneumonie, Pankreatitis, Hepatitis, Arthritis, Diabetes ...
Read more

Information Retrieval - Stanford University

Introduction to Information Retrieval Precision@K ... The same information from different sources ... Mean Avg. Precision (MAP) Recall=3212/4728
Read more