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Fraunhofer Institut für Integrierte Publikations-und Informationssysteme IPSI
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PublicationCan proactive behavior turn chatterbots into conversational agents?( 2005)
;L'Abbate, M. ;Thiel, U.Kamps, T. -
PublicationUsing case based retrieval techniques for handling anomalous situations in advisory dialogues( 2004)
;L'Abbate, M. ;Frommholz, I. ;Thiel, U.Neuhold, E.The efficacy of expert systems often depends on the accuracy and completeness of the problem specification negotiated with the user. Therefore, efficient user interfaces are needed, in order to assist the user in identifying and supplying the required data. Our approach presented in this paper is based on the utilisation of conversational interfaces, giving users the possibility of interacting with the system by means of natural language. Through the use of flexible dialogue management plans and an advanced problem solving strategy based on case based reasoning and information retrieval, efficient user guidance during the interaction with an expert system can be achieved. Thus, the user can interactively develop a comprehensive and coherent specification of his problem, based on clarifications, explanations, and context-based factual information provided by the system. As an application framework we introduce the EU-funded Project VIP-Advisor whose objective is the development of a virtual insurance and finance assistant capable of natural language interaction. -
PublicationContent engineering for conversational advisory systems( 2004)
;L'Abbate, M. ;Thiel, U.Kamps, T. -
PublicationIncreasing the customer's choice: query expansion based on the layer-seeds method and its application in e-commerce( 2004)
;Chen, L. ;L'Abbate, M. ;Thiel, U.Neuhold, E.J. -
PublicationBeratungsdialog im WWW: Ein konversationales Modell und seine Implementierung( 2004)
;Engelmann, H. ;L'Abbate, M.Thiel, U. -
PublicationThe use of contextual information in a proactivity model for conversational agents( 2003)
;L'Abbate, M.Thiel, U.For conversational agents engaging in a natural language-based interaction with web site users in service exchange applications, simple entertaining "chatting" is not sufficient. Instead, the agent needs to be cooperative by trying to provide relevant information about products and/or the conditions of purchasing. In this paper we analyze how the proactive behaviour of conversational agents can be used to increase the general user satisfaction. The results of two case studies allow us to outline a generic proactivity, model for information agents based on retrieval mechanisms and search heuristics. -
PublicationA personalized information search process based on dialoguing agents and user profiling( 2003)
;Semeraro, G. ;Degemmis, M. ;Lops, P. ;Thiel, U.L'Abbate, M.The amount of information available on the web, as well as the number of e-businesses and web shoppers, is growing exponentially. Customers have to spend a lot of time to browse the net in order to find relevant information. One way to overcome this problem is to use dialoguing agents that exploit user profiles to generate personal recommendations. This paper presents a system, designed according to this approach, that adopts a query refinement mechanism to improve the search process of an Internet commerce web site. -
PublicationAutomatische Thesauruserstellung und Query Expansion in einer E-Commerce-Anwendung( 2002)
;Chen, L. ;Thiel, U.L'Abbate, M. -
PublicationHelping conversational agents to find informative responses( 2002)
;L'Abbate, M.Thiel, U. -