Inverse Document Frequency (IDF)

Business / Search Engine Optimization (SEO) / Inverse Document Frequency (IDF): Inverse Document Frequency is a term used to help determine the position of a term in a vector space model. IDF = log ( total documents in database / documents containing the term )

Other Words for Document

Document Noun Synonyms: paper, certificate, instrument, report, chronicle, record
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Low Frequency

Technology / Home Audio / Low Frequency: Refers to radio frequencies within the 30-300 khz band. In audio it usually refers to frequencies in the 20-160 Hz band. MORE

Loan Documents

Business / Real Estate / Loan Documents: Documents prepared by a lender in conjunction with granting the loan to the borrower, may include a promissory note, deed of trust, and required loan disclosure documents. MORE

Portable Document Format (PDF)

Technology / Computers / Portable Document Format (PDF): A technology developed by Adobe and was designed to capture all of the elements of a printed document and place it in a singe image file. This PDF file can be navigated, printed or attached to an emai MORE

Pulse Repetition Frequency (PRF)

Technology / Radar / Pulse Repetition Frequency (PRF): The number of radar pulses transmitted each second. The pulse transmission rate is automatically lengthened for longer ranges. MORE

Radio Frequency Identification (RFID)

Technology / Computers / Radio Frequency Identification (RFID): RFID first appeared in tracking and access applications during the 1980s. It is a method of remotely storing and retrieving data using devices called RFID tags/transponders and is coming into increasi MORE

Radio Frequency (RF)

Technology / Cell Phones / Radio Frequency (RF): The spectrum of electromagnetic energy between audio and light: 500 KHz to 300 GHz. MORE

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