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81Civil defense siren — Federal Signal Thunderbolt 1003 Civil Defense siren. A civil defense siren (also referred to as an air raid siren, tornado siren, tsunami siren, fire siren/whistle, flood siren, weather siren, time/curfew siren, or other outdoor warning siren) is …
82New York City Subway — Top: A number 4 train made up of R142 …
83Pitch class — Perfect octave  Play (help· …
84No Child Left Behind Act — President Bush signing the bipartisan No Child Left Behind Act at Hamilton H.S. in Hamilton, Ohio. No Child Left Behind Act of 2001 …
85Decision tree learning — This article is about decision trees in machine learning. For the use of the term in decision analysis, see Decision tree. Decision tree learning, used in statistics, data mining and machine learning, uses a decision tree as a predictive model… …
86Record linkage — (RL) refers to the task of finding entries that refer to the same entity across different data sources (e.g., files, books, websites, databases, etc.). Record linkage is an appropriate technique when you have to join data sets that do not already …
87Anarky — For other uses, see Anarky (disambiguation). Promotional art for Anarky vol. 2, No.1 (May 1999) by Norm Breyfogle. Publication information Publisher DC Comics …
88List of The Price Is Right pricing games — Pricing games are featured on the current version of the game show The Price Is Right. The contestant from Contestants Row who bids closest to the price of a prize without going over wins it and has the chance to win additional prizes or cash in… …
89race — race1 /rays/, n., v., raced, racing. n. 1. a contest of speed, as in running, riding, driving, or sailing. 2. races, a series of races, usually of horses or dogs, run at a set time over a regular course: They spent a day at the races. 3. any… …
90Matroid — In combinatorics, a branch of mathematics, a matroid (  /ˈmeɪ …
