Belief Revision addresses the problem of rationally incorporating pieces of new information into an agent’s belief state. In the AGM paradigm, the most used framework in Belief Revision, primacy is given to the new information, which is fully incorporated into the agent’s belief state. However, in real situations, one may want to reject the new information or only accept a part of it. A constructive model called Selective Revision was proposed to meet this need but, as in the AGM framework, focused on belief sets (sets closed under logical consequence). In this paper we adapt the selective revision operators, that were proposed for belief sets, to the belief base context, obtaining a model in which an agent’s epistemic state is represented by a belief base and that allows the acceptance of only part of the new information. We present several representation theorems for selective base revision operators based on different base revision operators.

信念修正解决了将新信息合理地合并到代理的信念状态中的问题。在信念修正中最常用的框架 AGM 范式中，新信息被赋予首要地位，新信息完全纳入代理的信念状态。然而，在实际情况下，人们可能想要拒绝新信息或只接受其中的一部分。提出了一种称为选择性修订的建设性模型来满足这一需求，但与 AGM 框架一样，它侧重于信念集（在逻辑结果下关闭的集合）。在本文中，我们将针对信念集提出的选择性修订算子适应信念基础上下文，从而获得一个模型，其中代理的认知状态由信念基础表示，并且只允许接受部分新信息.