Facilitating Learners' Web-Based Information Problem-Solving by Query Expansion-Based Concept Mapping

Autor/inn/en	Huang, Yueh-Min; Liu, Ming-Chi; Chen, Nian-Shing; Kinshuk; Wen, Dunwei
Titel	Facilitating Learners' Web-Based Information Problem-Solving by Query Expansion-Based Concept Mapping
Quelle	In: Australasian Journal of Educational Technology, 30 (2014) 5, S.517-532 (16 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1449-5554
Schlagwörter	Problem Solving; Concept Mapping; Educational Technology; Thinking Skills; Technology Uses in Education; Experimental Groups; Control Groups; Online Searching; Comparative Analysis; Search Strategies; Web Sites; Information Literacy; Foreign Countries; Undergraduate Students; Pretests Posttests; Taiwan + Suchen Sie Ihr Suchwort? Problemlösen; Concept Map; Unterrichtsmedien; Denkfähigkeit; Technology enhanced learning; Technology aided learning; Technologieunterstütztes Lernen; Online-Recherche; Suchstrategie; Web-Design; Informationskompetenz; Ausland
Abstract	Web-based information problem-solving has been recognised as a critical ability for learners. However, the development of students' abilities in this area often faces several challenges, such as difficulty in building well-organised knowledge structures to support complex problems that require higher-order skills (e.g., system thinking). To resolve these issues, this study employs a semi-automatic tool that supports query expansion-based concept mapping (QECM) for assisting learners' web-based information problem-solving. The query expansion technique aims to recommend relevant concepts and linking words for building the map. The linking of concepts also uses non-taxonomic relationships for visualising a systemic model to develop complex problem-solving. An experiment was conducted by randomly dividing 50 participants into two groups, QECM (experimental) and conventional keyword-based search system, (control), to compare their performance during web-based information problem-solving tasks. The results show that the QECM system facilitated participants in extending their queries so as to enhance the comprehensiveness of their constructed concept maps. The QECM also improved the participants' information problem-solving performance by bridging concepts of an assigned task. The findings imply that learners using the QECM system can focus on the higher-order tasks of problem-solving and be better engaged in exploring real-life problems with the web. (As Provided).
Anmerkungen	Australasian Society for Computers in Learning in Tertiary Education. Ascilite Secretariat, P.O. Box 44, Figtree, NSW, Australia. Tel: +61-8-9367-1133; e-mail: info@ascilite.org.au; Web site: http://www.ascilite.org.au/ajet
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10