Consider a point-to-point communication system in which the transmitter holds a binary message of length $m$ and transmits a corresponding codeword of length $n$. The receiver's goal is to recover a Boolean function of that message, where the function is unknown to the transmitter, but chosen from a known class $F$. We are interested in the asymptotic relationship of $m$ and $n$: given $n$, how large can $m$ be (asymptotically), such that the value of the Boolean function can be recovered reliably? This problem generalizes the identification-via-channels framework introduced by Ahlswede and Dueck. We formulate the notion of computation capacity, and derive achievability and converse results for selected classes of functions $F$, characterized by the Hamming weight of functions. Our obtained results are tight in the sense of the scaling behavior for all cases of $F$ considered in the paper.
翻译:考虑一个点对点通信系统,其中发送方持有长度为 $m$ 的二进制消息,并传输相应的长度为 $n$ 的码字。接收方的目标是恢复该消息的某个布尔函数值,该函数对发送方未知,但选自一个已知的类 $F$。我们关注 $m$ 与 $n$ 的渐近关系:给定 $n$,$m$ 可以(渐近地)多大,使得布尔函数的值能够被可靠地恢复?该问题推广了由 Ahlswede 和 Dueck 提出的通过信道进行识别的框架。我们提出了计算容量的概念,并针对由函数的汉明权重刻画的特定函数类 $F$,推导了可达性与逆命题结果。本文所得结果对于所考虑的所有 $F$ 情形,在缩放行为的意义上是紧的。