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Direct linkHuang, Jia – ProQuest LLC, 2014
Information retrieval (IR) systems have tremendously broaden users' access to information. However, users need to select their needs from trillions of information indexed daily. Due to the "semantic gap" between queries and indexed terms in IR system, whether users can satisfy their needs depends on whether they use the correct terms as…
Descriptors: Information Retrieval, Information Needs, Documentation, Information Systems
Peer reviewed
Download full textLubchak, Vladimir; Kupenko, Olena; Kuzikov, Borys – Informatics in Education, 2012
E-learning students are generally heterogeneous and have different capabilities knowledge base and needs. The aim of the Sumy State University (SSU) e-learning system project is to cater to these individual needs by assembling individual learning path. This paper shows current situation with e-learning in Ukraine, state-of-art of development of…
Descriptors: Foreign Countries, Electronic Learning, Technology Uses in Education, Educational Technology
Goodwin, Geoffrey P.; Johnson-Laird, P. N. – Cognitive Psychology, 2011
Negation, conjunction, and disjunction are major building blocks in the formation of concepts. This article presents a new model-based theory of these Boolean components. It predicts that individuals simplify the models of instances of concepts. Evidence corroborates the theory and challenges alternative accounts, such as those based on minimal…
Descriptors: Prediction, Computer Software, Logical Thinking, Models
Hu, Dawei; Chen, Wei; Zeng, Qingtian; Hao, Tianyong; Min, Feng; Wenyin, Liu – International Journal of Distance Education Technologies, 2008
A personalized e-learning framework based on a user-interactive question-answering (QA) system is proposed, in which a user-modeling approach is used to capture personal information of students and a personalized answer extraction algorithm is proposed for personalized automatic answering. In our approach, a topic ontology (or concept hierarchy)…
Descriptors: Individualized Instruction, Electronic Learning, Questioning Techniques, Interaction
St. George, Art – EDUCAUSE Review, 2007
Today, at the end of 2007, there are evident consolidations in wireless, storage, and virtualization and the path forward seems clearer now than previously. Trends from last year continue strongly, particularly Web 2.0 and the shift to user-driven environments and Internet sites where significant data and video processing is available to those…
Descriptors: Internet, Educational Trends, Information Technology, Technology Integration
International Association for Development of the Information Society, 2012
The IADIS CELDA 2012 Conference intention was to address the main issues concerned with evolving learning processes and supporting pedagogies and applications in the digital age. There had been advances in both cognitive psychology and computing that have affected the educational arena. The convergence of these two disciplines is increasing at a…
Descriptors: Academic Achievement, Academic Persistence, Academic Support Services, Access to Computers
