Polycafe: Advanced System for the Evaluation of Chat Conversations Based on the Polyphonic Model
Journal Title: Romanian Journal of Human - Computer Interaction - Year 2011, Vol 4, Issue 3
Abstract
Chat conversations have become very popular among the members of various online communities. With the popularity growth of computer supported collaborative learning (CSCL), chat conversations have started being used in educational environments. Nevertheless, assessing students through the analysis of the chats they participate in has the two main problems: the process is complex and time consuming. Therefore, the need of performing automatic analysis and evaluation of students based on chat conversations rose drastically. Thereby, in the last years efforts have been made in order to develop an instrument that can automatically analyze collaborative chat conversations used in educational contexts. In this paper we propose a solution based on natural language processing, social network analysis, latent semantic analysis, as well as data-mining and information retrieval techniques. All these perspectives are integrated in order to present various facilities, such as participant evaluation, utterance and collaboration assessment, topics visualization and semantic search.
Authors and Affiliations
Traian Rebedea, Mihai Dascălu, Ștefan Trăușan-Matu, Ana Teodorescu, Alexandra Ene
Keywords
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