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- Precision_and_recall abstract "In pattern recognition and information retrieval with binary classification, precision (also called positive predictive value) is the fraction of retrieved instances that are relevant, while recall (also known as sensitivity) is the fraction of relevant instances that are retrieved. Both precision and recall are therefore based on an understanding and measure of relevance. Suppose a program for recognizing dogs in scenes from a video identifies 7 dogs in a scene containing 9 dogs and some cats. If 4 of the identifications are correct, but 3 are actually cats, the program's precision is 4/7 while its recall is 4/9. When a search engine returns 30 pages only 20 of which were relevant while failing to return 40 additional relevant pages, its precision is 20/30 = 2/3 while its recall is 20/60 = 1/3.In statistics, if the null hypothesis is that all and only the relevant items are retrieved, absence of type I and type II errors corresponds respectively to maximum precision (no false positive) and maximum recall (no false negative). The above pattern recognition example contained 7 − 4 = 3 type I errors and 9 − 4 = 5 type II errors. Precision can be seen as a measure of exactness or quality, whereas recall is a measure of completeness or quantity.In simple terms, high precision means that an algorithm returned substantially more relevant results than irrelevant, while high recall means that an algorithm returned most of the relevant results.".
- Precision_and_recall thumbnail Precisionrecall.svg?width=300.
- Precision_and_recall wikiPageID "14343887".
- Precision_and_recall wikiPageLength "17638".
- Precision_and_recall wikiPageOutDegree "54".
- Precision_and_recall wikiPageRevisionID "680748035".
- Precision_and_recall wikiPageWikiLink Accuracy_and_precision.
- Precision_and_recall wikiPageWikiLink Binary_classification.
- Precision_and_recall wikiPageWikiLink Browsing.
- Precision_and_recall wikiPageWikiLink Classification_(machine_learning).
- Precision_and_recall wikiPageWikiLink Cohens_kappa.
- Precision_and_recall wikiPageWikiLink Confusion_matrix.
- Precision_and_recall wikiPageWikiLink Contingency_table.
- Precision_and_recall wikiPageWikiLink F1_Score.
- Precision_and_recall wikiPageWikiLink F1_score.
- Precision_and_recall wikiPageWikiLink Geometric_mean.
- Precision_and_recall wikiPageWikiLink Harmonic_mean.
- Precision_and_recall wikiPageWikiLink Information_retrieval.
- Precision_and_recall wikiPageWikiLink Linear_regression.
- Precision_and_recall wikiPageWikiLink Matthews_correlation_coefficient.
- Precision_and_recall wikiPageWikiLink Null_hypothesis.
- Precision_and_recall wikiPageWikiLink Pattern_recognition.
- Precision_and_recall wikiPageWikiLink Positive_and_negative_predictive_values.
- Precision_and_recall wikiPageWikiLink Positive_predictive_value.
- Precision_and_recall wikiPageWikiLink Precision_and_recall.
- Precision_and_recall wikiPageWikiLink Recall_(information_retrieval).
- Precision_and_recall wikiPageWikiLink Receiver_operating_characteristic.
- Precision_and_recall wikiPageWikiLink Regression_coefficient.
- Precision_and_recall wikiPageWikiLink Relevance.
- Precision_and_recall wikiPageWikiLink Relevance_(information_retrieval).
- Precision_and_recall wikiPageWikiLink Search_engine_(computing).
- Precision_and_recall wikiPageWikiLink Sensitivity_and_specificity.
- Precision_and_recall wikiPageWikiLink Serendipity.
- Precision_and_recall wikiPageWikiLink Specificity_(tests).
- Precision_and_recall wikiPageWikiLink Statistical_classification.
- Precision_and_recall wikiPageWikiLink Statistics.
- Precision_and_recall wikiPageWikiLink Type_I_and_type_II_errors.
- Precision_and_recall wikiPageWikiLink Uncertainty_coefficient.
- Precision_and_recall wikiPageWikiLink Web_document.
- Precision_and_recall wikiPageWikiLink Web_search_engine.
- Precision_and_recall wikiPageWikiLink File:Precisionrecall.svg.
- Precision_and_recall wikiPageWikiLinkText "F-measure".
- Precision_and_recall wikiPageWikiLinkText "Precision and recall".
- Precision_and_recall wikiPageWikiLinkText "Precision".
- Precision_and_recall wikiPageWikiLinkText "Precision, recall".
- Precision_and_recall wikiPageWikiLinkText "Precision_and_recall".
- Precision_and_recall wikiPageWikiLinkText "Recall".
- Precision_and_recall wikiPageWikiLinkText "precision and recall".
- Precision_and_recall wikiPageWikiLinkText "precision".
- Precision_and_recall wikiPageWikiLinkText "recall".
- Precision_and_recall wikiPageWikiLinkText "recall/precision".
- Precision_and_recall wikiPageWikiLinkText "“recall” and “precision”".
- Precision_and_recall hasPhotoCollection Precision_and_recall.
- Precision_and_recall wikiPageUsesTemplate Template:Confusion_matrix_terms.
- Precision_and_recall wikiPageUsesTemplate Template:DiagnosticTesting_Diagram.
- Precision_and_recall wikiPageUsesTemplate Template:Main.
- Precision_and_recall hypernym Fraction.
- Precision_and_recall type ChemicalSubstance.
- Precision_and_recall type Biostatistic.
- Precision_and_recall type Datum.
- Precision_and_recall comment "In pattern recognition and information retrieval with binary classification, precision (also called positive predictive value) is the fraction of retrieved instances that are relevant, while recall (also known as sensitivity) is the fraction of relevant instances that are retrieved. Both precision and recall are therefore based on an understanding and measure of relevance. Suppose a program for recognizing dogs in scenes from a video identifies 7 dogs in a scene containing 9 dogs and some cats.".
- Precision_and_recall label "Precision and recall".
- Precision_and_recall sameAs دقة_ومراجعة.
- Precision_and_recall sameAs Dəqiqlik_və_tanıma.
- Precision_and_recall sameAs Precisió_i_record.
- Precision_and_recall sameAs Precisión_y_exhaustividad.
- Precision_and_recall sameAs Doitasun_eta_estaldura.
- Precision_and_recall sameAs Précision_et_rappel.
- Precision_and_recall sameAs Precisione_e_recupero.
- Precision_and_recall sameAs 정밀도와_재현율.
- Precision_and_recall sameAs m.03d144_.
- Precision_and_recall sameAs Q2359161.
- Precision_and_recall sameAs Q2359161.
- Precision_and_recall wasDerivedFrom Precision_and_recall?oldid=680748035.
- Precision_and_recall depiction Precisionrecall.svg.
- Precision_and_recall isPrimaryTopicOf Precision_and_recall.
