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Combining Knowledge Awareness and Information Filtering in an Open-ended Collaborative Lear.pdf

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Combining Knowledge Awareness and Information Filtering in an Open-ended Collaborative Lear

International Journal of Artificial Intelligence in Education (2000), 11, 33-46 33 Combining Knowledge Awareness and Information Filtering in an Open-ended Collaborative Learning Environment Hiroaki Ogata, Yoneo Yano, Dept. of Information Science and Intelligent Systems, Faculty of Engineering, Tokushima University, 2-1, Minami-Josanjima, Tokushima 770-8506, Japan e-mail: ogata@is.tokushima-u.ac.jp Abstract. Knowledge awareness (KA) has been proposed to increase collaboration opportunities in an open ended and collaborative learning environment. To encourage collaboration, an individual user’s agent called KA-Agent autonomously informs the learner about up-to-the-minute activities from other learners. For instance, a message might be “someone is looking at the same knowledge that you are looking at.” Although this message, called active KA, is very useful to create real-time collaboration, a large number of messages often confuse learners and disturb their learning. Therefore, the agent has to have an information filtering facility to inform a learner of the important messages of KA. This paper describes a KA filtering technique based on some educational strategies toward efficient collaborative learning. INTRODUCTION Recently, researchers in the educational systems area have been attempting to provide technological support for cooperative and collaborative learning advocated by educational theories (Slavin, 1990; Webb Palincsar, 1996; O’Malley, 1994). This paper focuses on an open ended and collaborative learning environment. For this situation, CoVis (Edelson et al., 1996), KIE (Linn, 1996), CSILE (Scardamalia Bereiter, 1996), WebCamile (Guzdial et al., 1997) and Belvedere (Suthers Jones, 1997) have been developed. CoVis focuses on making a collaboration process visible. KIE succeeds by helping students link, connect, distinguish, compare, and analyse their repertoire of ideas. CSILE and WebCamile support knowledge building for the creation of knowledge. Belve