观测主体的遗忘机制

The Forgetting Mechanism of Observing Subjects

分析观测过程的系统结构 ,提出观测主体的实质是计算机 .理想观测主体的存储计算能力应无限高 ,但实际情况往往是有限的 .迫于此 ,观测主体在接收到过多信息 ,或信息过于复杂时 ,就会被迫遗忘一些信息 .作者研究了这种遗忘机制和相应的遗忘算法 .即研究怎样的遗忘将最大可能地保留尽可能多的信息 .此外 ,各观测主体间也会相互交流信息 ,由于受到通信信道的限制 ,使得要交流的信息也须经过遗忘算法进行简化后再交流 .作者探讨了概率的本质 ,指出概率有两种 :一种是自然界控制的客观概率 ,另一种是依赖于观测主体而存在的主观概率 .不同的观测主体对同一观测客体的知识分布不同 。

By analyzing the system structure of observation process, we suggest that an observing subject is actually a computer. An ideal observing subject should have unlimited calculation and storage capability. This is not the case in practical situations. As a consequence, when a subject receives too much message, or when the message is too complicated, it will have to forget some. The forgetting mechanism and the corresponding algorithm is studied so as to preserve as much information as possible. Besides, because of the limitation of communication channels, the information will have to be simplified by the forgetting algorithm before exchanged between observing subjects. We also discuss the essence of probability, and point out that there are two kinds of probabilities. Objective probability is controlled by nature while subjective probability exists with subject. Different subjects have different knowledge of the same object, which results in different subjective probabilities of any event.