我们给定x,函数都会输出一个f(X),这个输出的f(X)与真实值Y可能是相同的,也可能是不同的,为了表示拟合的好坏,就用一个函数来度量拟合的程度。这个函数就称为损失函数(loss function),或者叫代价函数(cost function)

最新论文

Agents are systems that optimize an objective function in an environment. Together, the goal and the environment induce secondary objectives, incentives. Modeling the agent-environment interaction using causal influence diagrams, we can answer two fundamental questions about an agent's incentives directly from the graph: (1) which nodes can the agent have an incentivize to observe, and (2) which nodes can the agent have an incentivize to control? The answers tell us which information and influence points need extra protection. For example, we may want a classifier for job applications to not use the ethnicity of the candidate, and a reinforcement learning agent not to take direct control of its reward mechanism. Different algorithms and training paradigms can lead to different causal influence diagrams, so our method can be used to identify algorithms with problematic incentives and help in designing algorithms with better incentives.

0
0
下载
预览
参考链接
父主题
Top
微信扫码咨询专知VIP会员