Knowledge Enhanced Embodied Cognitive Interaction Technology (KnowCIT)
CITEC – Cognitive Interaction Technology – Center of Excellence Summary The project has built a technology which enables artificial agents to explore “crowdsourced” knowledge resources generated by large communities of web users. Project: Knowledge Enhanced Embodied Cognitive Interaction Technology Supervisor(s): Ipke…
GermanPolarityClues – A Lexical Resource for German Sentiment Analysis
Feel free to use/download the GermanPolarityClues dictionary, a new publicly available lexical resource for sentiment analysis for the German language. The resource offers a number of 10.141 polarity features, associated to three numerical polarity scores, determining the positive, negative and…
WikiQA – Question Answering
WikiQA is a German open domain question answering system that uses the Wikipedia as a knowledge base to answer natural language questions. It has been developed by the KnowCIT project (Artificial Intelligence Group) within the CITEC at Bielefeld University. Using…
Integrating Content and Structure Learning: A Model of Hypertext Zoning and Sounding
Title: Integrating Content and Structure Learning: A Model of Hypertext Zoning and Sounding Authors: Alexander Mehler and Ulli Waltinger Pub/Conf: Modeling, Learning and Processing of Text Technological Data Structures. Mehler A, Henning Lobin and Harald Lüngen and K-UK, Storrer A, Witt…
Deciphering the Communicative Code in Speech and Gesture Dialogues by Autoencoding Hypernetworks
Title: Deciphering the Communicative Code in Speech and Gesture Dialogues by Autoencoding Hypernetworks Authors: N. – S. Nam, K. Bergmann, U. Waltinger, S. Kopp, I. Wachsmuth, B. – T. Zhang Pub/Conf: Embodied & Situated Language Processing – ESLP 2011 Abstract: What…
An Empirical Study on Machine Learning-Based Sentiment Classification Using Polarity Clues
Title: An Empirical Study on Machine Learning-Based Sentiment Classification Using Polarity Clues Authors: Ulli Waltinger Pub/Conf: Web Information Systems and Technologies Lecture Notes in Business Information Processing Volume 75, 2011, pp 202-214 Abstract: In recent years a variety of approaches…
Digital Fruits For Lunch: Feeding Embodied Conversational Agents With Wikipedia Knowledge
Title: Digital Fruits For Lunch: Feeding Embodied Conversational Agents With Wikipedia Knowledge Authors: Ulli Waltinger, Alexa Breuing, Ipke Wachsmuth Pub/Conf: Interdisciplinary College Abstract: Recent advances in Artificial Intelligence and Natural Language Processing have enhanced the vision of using embodied conversational…
On Social Semantics in Information Retrieval
Title: On Social Semantics in Information RetrievalAuthors: Ulli WaltingerPub/Conf: PhD-Thesis, 2011 Abstract:In this thesis we analyze the performance of social semantics in textual information retrieval. By means of collaboratively constructed knowledge derived from web-based social networks, inducing both common-sense and…
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 DialogsAuthors: Breuing A, Waltinger U, Wachsmuth IPub/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 model harvesting the…
