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Please use this identifier to cite or link to this item: http://hdl.handle.net/1820/5501
Title: A Study about Placement Support Using Semantic Similarity
Authors: Kalz, Marco
Van Bruggen, Jan
Giesbers, Bas
Waterink, Wim
Eshuis, Jannes
Koper, Rob
Keywords: Assessment
eAssessment
Latent Semantic Analysis
LSA
Accreditation of prior learning
APL
Learning Networks
Networked Learning
Issue Date: 2-Sep-2014
Citation: Kalz, M., Van Bruggen, J., Giesbers, B., Waterink, W., Eshuis, J., & Koper, R. (2014). A Study about Placement Support Using Semantic Similarity. Educational Technology & Society, 17(3), 54–64.
Abstract: This paper discusses Latent Semantic Analysis (LSA) as a method for the assessment of prior learning. The Accreditation of Prior Learning (APL) is a procedure to offer learners an individualized curriculum based on their prior experiences and knowledge. The placement decisions in this process are based on the analysis of student material by domain experts, making it a time-consuming and expensive process. In order to reduce the workload of these domain experts we are seeking ways in which the preprocessing and selection of student submitted material can be achieved with technological support. This approach can at the same time stimulate research about assessment in open and networked learning environments. The study was conducted in the context of a Psychology Course of the Open University of the Netherlands. The results of the study confirm our earlier findings regarding the identification of the ideal number of dimensions and the use of stopwords for small-scale corpora. Furthermore the study indicates that the application of the vector space model and dimensionality reduction produces a well performing classification model for deciding about relevant documents for APL procedures. Together we discuss methodological issues and limitations of our study whilst also providing an outlook on future research in this area.
URI: http://hdl.handle.net/1820/5501
Appears in Collections:1. TELI Publications, books and conference papers
UCEI Publications

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