术语 | information content |
释义 | information content 信息量;[资讯量] A measure of information conveyed by the occurrence of an event of definite probability; in mathematical notation, the measure I(xi) for the event xi is expressed as the logarithm of the reciprocal of the probability p(xi) that the particular event will occur, i.e., I(xi)=log1p(xi)=-logp(xi). 一种对具有确定概率的事件发生时所传送的信息的量度。用数学表示法表示,令事件为 xi,事件发生的概率为p(xi),则信息量I(xi)为p(xi)的倒数的对数,即 I(xi)=log1p(xi)=-logp(xi)。 |
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