Sharing memories: an experimental investigation with multiple autonomous autobiographic agents

W.C. Ho, K. Dautenhahn, C.L. Nehaniv, R. Te Boekhorst

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    31 Downloads (Pure)


    The overall aim of our work is to develop a generic adaptive control
    architecture for autonomous intelligent agents. In our previous work we showed
    how a single agent's survival can benefit from autobiographic memory. In the
    current work we extend this work by introducing a multi-agent context. Also, we
    investigate autobiographic agents which are able to share episodic memories
    (sequences of perceptions and actions) in the form of 'communications' with others
    in order to find necessary resources for 'surviving' in an environment. This Artificial
    Life perspective allows assessment of the potential benefits of such communications
    in a multi-agent context. A virtual experimental-based approach deals with different
    conditions on agent communications. Extending our previous work, we introduce an
    improved control architectures design for autobiographic agents that allows them to
    communicate episodic memories. Using detailed measurements of the agents'
    lifespan, this is compared both with groups of purely reactive agents and
    non-communicative autobiographic agents. Results confirm our previous research
    hypothesis that autobiographic memory can prove beneficial, indicating increases in
    the lifespan of an autonomous, autobiographic, minimal agent. The paper presents
    results from simulation runs varying the following parameters: a) with/without
    communications of episodic memories, b) varying the number of agents in the
    environment from one to five, and c) communications under different types of
    conditions, including presence/absence of costs and motivations. Results show that
    in experiments with certain numbers of agents, communicating memories with
    others can compensate for the negative effect of generally decreasing lifespan due to
    multiple agent interference. Experiments on specific combinations of motivation
    and cost conditions also show that, when cost is incurred for communication, agents
    perform better if they communicate memories only when they are in need of a
    Original languageEnglish
    Title of host publication8th Conf on Intelligent Autonomous Systems
    Subtitle of host publicationIAS-8
    PublisherIOS Press
    Publication statusPublished - 2004


    Dive into the research topics of 'Sharing memories: an experimental investigation with multiple autonomous autobiographic agents'. Together they form a unique fingerprint.

    Cite this