---
title: "Context-Dependent Conceptualization"
authors:
  - "Dongwoo Kim"
  - "Haixun Wang"
  - "Alice Oh"
doi: ""
url: "https://ijcai.org/proceedings/2013/391"
pdf: "https://ijcai.org/proceedings/2013/0391.pdf"
venue: "Proceedings of the Twenty-Third International Joint Conference on Artificial Intelligence"
year: 2013
pages: "2654-2660"
track: ""
keywords:
---

# Context-Dependent Conceptualization

Dongwoo Kim, Haixun Wang, Alice Oh

*Proceedings of the Twenty-Third International Joint Conference on Artificial Intelligence*, pages 2654-2660.

## Abstract

Conceptualization seeks to map a short text (i.e., a word or a phrase) to a set of concepts as a mechanism of understanding text. Most of prior research in conceptualization uses human-crafted knowledge bases that map instances to concepts. Such approaches to conceptualization have the limitation that the mappings are not context sensitive. To overcome this limitation, we propose a framework in which we harness the power of a probabilistic topic model which inherently captures the semantic relations between words. By combining latent Dirichlet allocation, a widely used topic model with Probase, a large-scale probabilistic knowledge base, we develop a corpus-based framework for context-dependent conceptualization. Through this simple but powerful framework, we improve conceptualization and enable a wide range of applications that rely on semantic understanding of short texts, including frame element prediction, word similarity in context, ad-query similarity, and query similarity.