It is one of the central techniques in operations research. Customers at supermarkets sometimes queue in front of the cash register to pay, and airplanes sometimes wait their turn to use the runway when taking off or landing. Products produced in factories are also temporarily stored as they are processed at each stage. If these queues become too long, it could lead to serious accidents or a rise in production costs, so it is important to know how long the queues will be. Queueing theory is a theory that mathematically studies this, and it emerged as a theory for determining the number of lines in telephone switching systems, and has come to be widely applied in various fields. In particular, queuing theory has played a major role in evaluating the performance of various communication networks, such as satellite communications, in recent years. It is different from a mathematical matrix. Source : Heibonsha Encyclopedia About MyPedia Information |
オペレーションズリサーチの中心的手法の一つ。スーパーマーケットの買物客は代金を支払うためにレジの前で行列を作ることがあるし,航空機は離着陸の際に滑走路使用の順番を待つことがある。また工場で生産される製品は各工程で加工される際暫時ためておかれる。これらの待ち行列が長くなりすぎると,重大な事故や生産コストの高騰につながりかねないので,待ち行列がどの程度になるかを知ることは大切である。これを数学的に研究する理論が待ち行列理論で,電話交換システムの回線数決定の理論として登場し,各方面に広く応用されるようになってきた。特に近年は,衛星通信などの各種通信網の性能評価の上で,待ち行列理論の果たす役割は大きい。数学の行列(マトリックス)とは異なる。
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