Sentence Induced Transformations in Conceptual Spaces
ABSTRACT The proposed work illustrates how "primitive concepts" can be automatically induced from a text corpus. The primitive concepts are identified by the orthonormal axis of a "conceptual" space induced by a methodology inspired tothe latent semantic analysis approach. The methodology represents a natural language sentence by means of a set of rotations of an orthonormal basis in the "conceptual"space. The rotations, triggered by the sequence of words composing the sentence and realized by means of geometric algebra rotors, allow to highlight "conceptual" relations that can arise among the primitive concepts.
- SourceAvailable from: Giorgio Vassallo[Show abstract] [Hide abstract]
ABSTRACT: In this work we propose an interpretation of the LSA framework which leads to a data-driven “conceptual” space creation suitable for an “intuitive” conversational agent. The proposed approach allows overcoming the limitations of traditional, rule-based, chat-bots, leading to a more natural dialogue.10/2005: pages 381-392;
Article: Towards a theory of semantic space[Show abstract] [Hide abstract]
ABSTRACT: Abstract This paper adds some,theory to the growing,literature of semantic space models. We motivate semantic space models,from the perspective of distributional linguistics and show,how,an explicit mathematical,formulation can provide a better understanding,of existing models,and suggest changes and improvements.,In addition to providing a theoretical framework for current models, we consider the implications of statistical aspects of language data that have not been addressed in the psychological modeling,literature. Statistical approaches,to language must deal principally with count data, and this data will typically have a highly skewed,frequency distribution due to Zipf’s law. We consider the consequences,of these facts for the construction of semantic space models, and present methods,for removing,frequency biases from semantic space models.01/2001;
- Linguistics. 01/2006;