Interfacing Virtual Agents With Collaborative Knowledge: Open Domain Question Answering Using Wikipedia-based Topic Models
Abstract: This paper is concerned with the use of conversational agents as an interaction paradigm for accessing open domain encyclopedic knowledge by means of Wikipedia. More precisely, we describe a dialog-based question answering system for German which utilizes Wikipedia-based topic…
Harvesting Wikipedia Knowledge to Identify Topics in Ongoing Natural Language Dialogs
Title: Harvesting Wikipedia Knowledge to Identify Topics in Ongoing Natural Language Dialogs Authors: Breuing A, Waltinger U, Wachsmuth I Pub/Conf: IEEE/WIC/ACM International Joint Conference on Web Intelligence and Intelligent Agent Technology (WI-IAT 2011). IEEE: 445–450. 2011 Abstract: This paper introduces a…
Talking Topically to the Artificial Agent Max
Title: Talking Topically to the Artificial Agent Max Authors: Breuing A, Waltinger U, Wachsmuth I Pub/Conf: Postersession at the Interdisciplinary College. Sankt Augustin, Germany: 488. 2011 Abstract: How do we recognize a topic in dialog? How can we detect topic shifts?…
GermanPolarityClues: A Lexical Resource for German Sentiment Analysis
Title: GermanPolarityClues: A Lexical Resource for German Sentiment Analysis Authors: Ulli Waltinger Pub/Conf: International Conference on Language Resources and Evaluation, LREC 2010, 17-23 May 2010 Abstract: In this paper, we propose GermanPolarityClues, a new publicly available lexical resource for sentiment analysis…
Sentiment Analysis Reloaded: A Comparative Study On Sentiment Polarity Identification Combining Machine Learning And Subjectivity Features
Title: Sentiment Analysis Reloaded: A Comparative Study On Sentiment Polarity Identification Combining Machine Learning And Subjectivity Features Authors: Ulli Waltinger Pub/Conf: Web Information Systems and Technologies – 6th International Conference, WEBIST 2010, Valencia, Spain, April 7-10, 2010 Abstract: In recent years…
Social Semantics And Its Evaluation By Means of Closed Topic Models: An SVM-Classification Approach Using Semantic Feature Replacement By Topic Generalization
Title: Social Semantics And Its Evaluation By Means of Closed Topic Models: An SVM-Classification Approach Using Semantic Feature Replacement By Topic Generalization Authors: Ulli Waltinger, Alexander Mehler, and Rüdiger Gleim Pub/Conf: GSCL-Conference 2009 Abstract: Text categorization is a fundamental part in…
Towards Automatic Content Tagging: Enhanced Web Services in Digital Libraries Using Lexical Chaining
Title: Towards Automatic Content Tagging: Enhanced Web Services in Digital Libraries Using Lexical Chaining Authors: Ulli Waltinger, Alexander Mehler, and Gerhard Heyer Pub/Conf: 4th International Conference on Web Information Systems and Technologies (WEBIST ’08). Barcelona: 231–236 Abstract: This paper proposes…
