| 单词 | metadata |
| 释义 | metadata (once / 251475 pages) n Metadata is a collection of information, or data, that describes another set of data. In other words, metadata is "data about data." No kidding. The classic example of metadata is a library's card catalog — it's a complete system of data that's all about another set of data, the books that library holds. Today you'll find that metadata is primarily digital, existing on web pages and in computer files. Metadata tells you things about the data it describes, often including what the data is for, when and where it was created, and who created it. WORD FAMILYmetadata USAGE EXAMPLESThe programs collected the telephone metadata records of millions of Americans and examined emails from overseas. Seattle Times(Dec 22, 2016) Seeking ways to expand law enforcement’s access to metadata and analytical innovations, with appropriate civil liberties safeguards, would be a good start. Time(Dec 13, 2016) The officials replied that the court order restricted the NSA to trace metadata of just three international terrorist organizations. Slate(Dec 08, 2016) n data about data a library catalog is metadata because it describes publications Hyper data, information a collection of facts from which conclusions may be drawn |
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