Corpus Analysis in Philosophical Semantics

The topic of this dissertation is corpus analysis: the use of computational techniques to search through large collections of real-world texts (called corpora) to discover facts about language use which hold throughout the collection. I examine how corpus analysis can be used as an empirical methodology within philosophy of language to confirm semantic analyses of philosophically important expressions. I begin by discussing the philosophical importance of analyzing the ordinary meaning of people's language use, as through that we can come to understand how they categorize the world around them. Specifically, I am concerned with philosophical semantics: the study of the meaning of expressions for which different theories of their meaning will have different philosophical upshots. After discussing the kind of meaning relevant to this subject area (namely operative concepts: the concepts that actually determine how we apply expressions to cases), I rationally reconstruct and analyze existing methods of confirmation in philosophical semantics, including intuitive methods and questionnaire methods from experimental philosophy. I then critique these methods in terms of the strength of evidence they can offer.Next, I introduce corpus analysis, and explain how it can be used as a method of confirmation in philosophical semantics. I pay special attention to the question of how corpus analysis can be used to discover the 'deep', semantic, representational features of text relevant for confirming semantic analyses, and offer several techniques to perform this task.I argue that corpus analysis has many benefits over existing methods of confirmation in philosophical semantics, given that it studies (i) actual, rather than imagined, instances of language use, and (ii) the language use of the actual communities whose meanings we are interested in, rather than just that of philosophers.The dissertation concludes with a case study of the use of corpus analysis to confirm a theory of the reference conditions of definite descriptions over a rival theory with different philosophical upshots. This is the first corpus study in philosophical semantics to make use of an annotated corpus, which is a technique with lot of promise within this field.Doctor of Philosoph