IDF

(redirected from Inverse Document Frequency)
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AcronymDefinition
IDFIsrael Defense Forces
IDFIntel Developer Forum
IDFIntermediate Distribution Frame
IDFIle De France (region near Paris, France)
IDFInternational Diabetes Federation
IDFInverse Document Frequency (datamining)
IDFIdiopathic Pulmonary Fibrosis
IDFIndirect Fire
IDFInternational Dairy Federation
IDFImmune Deficiency Foundation
IDFInternational Downhill Federation (sports)
IDFInstitutional Development Fund (World Bank; est. 1992)
IDFIndigenous Defense Fighter
IDFIndigenous Defense Fighter (Taiwan)
IDFInternational DOI (Digital Object Identifier) Foundation
IDFInput Data Format
IDFInstrument Definition File
IDFIntel Developer'S Forum
IDFImage Definition File
IDFIntermediate Data Format
IDFIndigenous Defence Fighter (Ching-Kuo,Taiwan)
IDFInflow Design Flood (civil engineering)
IDFIndustry Development Fund (various locations)
IDFInstrument Definition File (computing)
IDFIceland Defense Force
IDFIntegrated Development Framework (various organizations)
IDFInterface Device
IDFIntensity Duration Frequency (hydrology)
IDFIndependence Fleet (Star Trek)
IDFIrish Defence Forces
IDFInternational Development Fund
IDFInteger-Controlled Data Flow
IDFInformation Distribution Facility
IDFInternet Dental Forum
IDFImmun Defekt Foreningen (Denmark)
IDFIslamic Defense Front
IDFInstitute for a Democratic Future (Washington state)
IDFItem Data File
IDFInertial Dampening Field (Star Trek)
IDFIntermediate Data File
IDFIslamic Dawah Foundation
IDFInterceptor Day Fighter
IDFInstrument Data File
IDFInstallation Data File
IDFInstallation Detention Facility
IDFImagery Dissemination Facility
IDFImbalance Design Fraction (aviation)
IDFInteramerica Data Florida, LLC (Doral, FL)
IDFInvalid Data Flag (Nortel)
IDFIssaan Development Foundation
IDFIntegrated Delivery Function
IDFIndemnity Discount Factor (insurance)
IDFItron Delimited Format
IDFIntelligent Document Factory
IDFIneffective Direct Fire
IDFInstruction and Dictionary Finalization
IDFInternational Disaggregate Forecast (Sprint)
IDFIssue Documentation Form (various organizations)
IDFInitial Distribution File
IDFIntegrated Demand Forecast (Sprint)
IDFIntermediate Distribution(al) Facility (networking)
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References in periodicals archive ?
Inverse document frequency (IDF) is a measure of the universal importance of a word.
TF-IDF is a product of term frequency, frequency of the specific word in a document and inverse document frequency, which provides the measure of information value a term/word provided in the document.
The inverse document frequency (IDF) is another measure that represents the importance of a term t.
* Inverse document frequency (idf): uncommon term is more important
During the next stage, the value (weight) of the unigram features is computed using several methods, which are term frequency (TF) and inverse document frequency (IDF) to determine the value (weight) of each entry of [w.sub.ij].
The statistic is calculated as a product of two distinct indicators, TF (Term Frequency) and IDF (Inverse Document Frequency).
Each feature value in the vector is calculated using the formula [TF.sup.*] IDF (inverse document frequency).
The IDF (inverse document frequency) function is as follows [1, 2]:
[43] found that the Inverse Document Frequency (IDF) global weighting outperformed all other weighting functions, and found no clear indication as to which local weighting function performed best.
The significance of this paper was that it proposed the concept of inverse document frequency, or IDF.
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