Doxastic Attitudes as Belief-Revision Policies
نویسندگان
چکیده
While propositional doxastic attitudes, like knowledge and belief, capture an agent’s opinion about certain propositions, her attitudes towards sources of information express her opinion about the reliability (or trustworthiness) of those sources. If an agent trusts a witness, then she will, within certain limits, tend to accept his testimony as veridical. But if she considers the witness to be a notorious liar, she may come to believe the opposite of what he tells her. In this paper, we put such attitudes towards sources (or dynamic (doxastic) attitudes) center stage, and formalize them as belief-revision strategies: policies governing how an agent changess her beliefs whenever new information from a certain (type of) source is received. We present a semantic, qualitative modelling of this notion and investigate its properties.
منابع مشابه
Protocols for belief merge: Reaching agreement via communication
We investigate the issue of reaching doxastic agreement among the agents of a group by “sharing” information via successive acts of sincere, persuasive and public communication within the group. The topic relates to “preference aggregation” in Social Choice theory, where the problem is to find a natural and fair merge operation for aggregating the agents’ preferences into a single group prefere...
متن کاملCRITICAL D ISCUSSI ON Belief-Policies Cannot Ground Doxastic Responsibility
William Alston has provided a by now well-known objection to the deontological conception of epistemic justification by arguing that since we lack control over our beliefs, we are not responsible for them. It is widely acknowledged that if Alston’s argument is convincing, then it seems that the very idea of doxastic responsibility is in trouble. In this article, I attempt to refute one line of ...
متن کاملA Qualitative Theory of Dynamic Interactive Belief Revision
We present a logical setting that incorporates a belief-revision mechanism within Dynamic-Epistemic logic. As the “static” basis for belief revision, we use epistemic plausibility models, together with a modal language based on two epistemic operators: a “knowledge” modality K (the standard S5, fully introspective, notion), and a “safe belief” modality 2 (“weak”, non-negatively-introspective, n...
متن کاملLogics of Informational Attitudes and Informative Actions
There is an extensive literature focused on using logical methods to reason about communities of agents engaged in some form of social interaction. Much of the work builds upon existing logical frameworks developed by philosophers and computer scientists incorporating insights and ideas from philosophy (especially epistemology and philosophy of action), game theory, decision theory and social c...
متن کاملConditional Doxastic Models: A Qualitative Approach to Dynamic Belief Revision
In this paper, we present a semantical approach to multi-agent belief revision and belief update. For this, we introduce relational structures called conditional doxastic models (CDM’s, for short). We show this setting to be equivalent to an epistemic version of the classical AGM Belief Revision theory. We present a logic of conditional beliefs that is complete w.r.t. CDM’s. Moving then to beli...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2012