17 research outputs found

    Visualisation of the information resources for cell biology

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    Intelligent multimodal interfaces can facilitate scientists in utilising available information resources. Combining scientific visualisations with interactive and intelligent tools can help create a “habitable” information space. Development of such tools remains largely iterative. We discuss an ongoing implementation of intelligent interactive visualisation of information resources in cell biology

    Cognitive architecture of multimodal multidimensional dialogue management

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    Numerous studies show that participants of real-life dialogues happen to get involved in rather dynamic non-sequential interactions. This challenges the dialogue system designs based on a reactive interlocutor paradigm and calls for dialog systems that can be characterised as a proactive learner, accomplished multitasking planner and adaptive decision maker. Addressing this call, the thesis brings innovative integration of cognitive models into the human-computer dialogue systems. This work utilises recent advances in Instance-Based Learning of Theory of Mind skills and the established Cognitive Task Analysis and ACT-R models. Cognitive Task Agents, producing detailed simulation of human learning, prediction, adaption and decision making, are integrated in the multi-agent Dialogue Man-ager. The manager operates on the multidimensional information state enriched with representations based on domain- and modality-specific semantics and performs context-driven dialogue acts interpretation and generation. The flexible technical framework for modular distributed dialogue system integration is designed and tested. The implemented multitasking Interactive Cognitive Tutor is evaluated as showing human-like proactive and adaptive behaviour in setting goals, choosing appropriate strategies and monitoring processes across contexts, and encouraging the user exhibit similar metacognitive competences

    Towards Integration of Cognitive Models in Dialogue Management: Designing the Virtual Negotiation Coach Application

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    This paper presents an approach to flexible and adaptive dialogue management driven by cognitive modelling of human dialogue behaviour. Artificial intelligent agents, based on the ACT-R cognitive architecture, together with human actors are participating in a (meta)cognitive skills training within a negotiation scenario. The agent  employs instance-based learning to decide about its own actions and to reflect on the behaviour of the opponent. We show that task-related actions can be handled by a cognitive agent who is a plausible dialogue partner.  Separating task-related and dialogue control actions enables the application of sophisticated models along with a flexible architecture  in which  various alternative modelling methods can be combined. We evaluated the proposed approach with users assessing  the relative contribution of various factors to the overall usability of a dialogue system. Subjective perception of effectiveness, efficiency and satisfaction were correlated with various objective performance metrics, e.g. number of (in)appropriate system responses, recovery strategies, and interaction pace. It was observed that the dialogue system usability is determined most by the quality of agreements reached in terms of estimated Pareto optimality, by the user's negotiation strategies selected, and by the quality of system recognition, interpretation and responses. We compared human-human and human-agent performance with respect to the number and quality of agreements reached, estimated cooperativeness level, and frequency of accepted negative outcomes. Evaluation experiments showed promising, consistently positive results throughout the range of the relevant scales

    User-computer interfaces for scientific communication: the concept of habitable interfaces

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    Developments in computer technology have changed the way we communicate in general and in science in particular. These developments enable the increase in the effectiveness and efficiency of the communication. The actual increase will depend also on the fit between technology and people who are communicating. Proliferation of the digital archives alone does not solve the problem of seeming abundance of scientific information. There are at least two issues that contribute to this. Firstly, more information resources require more attention and time to find those that are needed. Secondly, information or access to information is structured based on some rationale that does not necessarily fit the rationale of a scientist accessing the information. We are primarily interested in the design of interfaces for accessing scientific archives. To design the interfaces such as to improve effectiveness and efficiency of scientific communication, we consider scientific communication as a context within which the technology is applied

    Visualisation of the information resources for cell biology

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    Intelligent multimodal interfaces can facilitate scientists in utilising available information resources. Combining scientific visualisations with interactive and intelligent tools can help create a “habitable ” information space. Development of such tools remains largely iterative. We discuss an ongoing implementation of intelligent interactive visualisation of information resources in cell biology

    Federating resources of information systems: browsing interface (FRISBI)

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    Designing the user interface of a federated system (what we call a browsing interface) must consider the knowledge gap that exists between desires of the users and the needs the systems are built to support. The concept of Habitable Interfaces aims to bridge the knowledge gap by providing kinds of representations and the interaction with these representations that are based on domain knowledge. Habitable Interfaces will allow the organising of currently disparate archives into cohesive domain specific federations of information resources. To approach designing Habitable Interfaces we propose a model of communication and a criterion
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