A practical ontology query expansion algorithm for semantic-aware learning objects retrieval

Lee, Ming-Che; Tsai, Kun Hua; Wang, Tzone I.

doi:10.1016/j.compedu.2006.12.007

Cited by 58 publications

(35 citation statements)

References 8 publications

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“…It is called the process of personalized semantic query expansion (PSQE). The strategies of general semantic query expansion are often based on hierarchical relationship and the expansion level is determined empirically just like selecting all successor concepts, instance set, direct descendant concept set and direct grandfather concept set [9][10][11][12]. Here we borrow the thought of spreading activation model to enhance the selection of expansion terms to reduce noise and combine it with dynamic user query profile to get more accurate expansion terms.…”

Section: Psqe (Personalized Semantic Query Expansion)mentioning

confidence: 99%

“…D. Pal extracted candidate expansion terms from a set of pseudo-relevant documents and then filtered terms according to the semantical relation to query based on WordNet [6]. In domain retrieval, domain ontology was built and query expansion was implemented with different strategies [7][8][9][10][11][12], L. Khan et al selected all successor concepts of disambiguated concepts of query for query expansion [9], and G. Zou et al only selected an instance set, direct descendant concept set and direct grandfather concept set [10], M. C. Lee et al employed concept hierarchy of domain ontology for expansion with a pruning threshold [11]. N. A. Segura et al considered concepts and relations together in the expansion process, concepts with meaningful relations were given a high priority for expansion [12].…”

Section: Related Workmentioning

confidence: 99%

“…It is often to expand the user query with the new terms that meaning are closely related to the input keywords. Such relationships are usually extracted from large scale thesauri or semantic supporter, such as WordNet, domain ontology, linked data [5][6][7][8] and semantic expansion strategy [9][10][11][12][13][14][15], in which various sets of synonyms, hyponyms, etc. are often predefined.…”

Section: Introductionmentioning

confidence: 99%

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Personalized Semantic Query Expansion Based on Dynamic User Query Profile and Spreading Activation Model

Zhu¹,

Meng²,

Chen³

et al. 2017

IJHIT

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Section: Psqe (Personalized Semantic Query Expansion)mentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Personalized Semantic Query Expansion Based on Dynamic User Query Profile and Spreading Activation Model

Zhu¹,

Meng²,

Chen³

et al. 2017

IJHIT

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show abstract

“…Lau, 2014]; el algoritmo de expansión de consultas de [M. Lee et al, 2008]; el sistema de extracción de información de [T.I. Wang et al, 2009]; el método de localización de información de [R. Kawase et al, 2014]; la ontología de extensión de consultas de [N.A.…”

Section: La Búsqueda Y Recuperación De La Informaciónunclassified

“…Sin embargo, en los sistemas de e-Learning, los usuarios pueden no tener la menor idea de lo que están buscando. En [M. Lee et al, 2008] se presenta un enfoque ontológico a la recuperación de LO teniendo en cuenta la semántica.…”

Section: Los Actuales Sistemas De Recuperación De Información Web O unclassified

Diseño de una red multinivel de conocimiento certificado y su aplicación a la enseñanza universitaria

Berrocal¹,

Javier²

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considerando el perfil del estudiante, los estilos de aprendizaje, estableciendo rutas de aprendizaje, a través de la tutoría individualizada o utilizando sistemas de recomendación. Aunque se han realizado avances en estas facetas de la adaptación, los enfoques existentes aportan soluciones para un entorno específico, sin que exista una orientación que resuelva la adaptación con una perspectiva más genérica, en el contexto de los objetos de aprendizaje y de la enseñanza. Esta tesis, con la propuesta de una "red multinivel de conocimiento certificado" aborda la adaptación a los perfiles de los estudiantes, asume la reutilización de los objetos de aprendizaje e introduce la certificación de los contenidos, sentando las bases de lo que podría ser una solución global al aprendizaje. La propuesta se basa en reestructurar los contenidos en forma de red, en establecer distintos niveles de detalle para los contenidos de cada nodo de la red, para facilitar la adaptación a los conocimientos previos del estudiante, y en certificar los contenidos con expertos. La "red multinivel" se implementa en una asignatura universitaria de grado, integrándola en los apuntes, y se aplica a la enseñanza. La validación de la propuesta se realiza desde cuatro perspectivas: en las dos primeras, se realiza un análisis estadístico para calcular la tasa de aceptación y se aplica un modelo TAM, extrayendo los datos para realizar el análisis de una encuesta que cumplimentan los alumnos; en las otras dos, se analizan las calificaciones académicas y las encuestas de opinión sobre la docencia. Se obtiene una tasa de aceptación del 81% y se confirman el 90% de las hipótesis del modelo TAM, se mejoran las calificaciones en un 21% y las encuestas de opinión en un 9%, lo que valida la propuesta y su aplicación a la enseñanza. RESUMEN Y ABSTRACT4 ABSTRACT E-Learning research holds a special interest in the adaptation of learning objects to the student, which can be performed in different ways: taking into account the student profile or learning styles, by establishing learning paths, through individualized tutoring or using recommender systems. Although progress has been made in these types of adaptation, existing approaches provide solutions for a specific environment without an approach that addresses the adaptation from a more general perspective, that is, in the context of learning objects and teaching. This thesis, with the proposal of a "certified knowledge multilevel network", focuses on adapting to the student profile, it is based on the reuse of learning objects and introduces the certification of the contents, laying the foundations for what could be a global solution to learning. The proposal is based on restructuring the contents on a network setting different levels of depth in the contents of each node of the network to facilitate adaptation to the student's background, and certify the contents with experts. The multilevel network is implemented in a university degree

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Technology-Driven Developments and Policy Implications for Mathematics Education

Trouche

Drijvers

Gueudet

et al. 2012

Third International Handbook of Mathematics Education

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A practical ontology query expansion algorithm for semantic-aware learning objects retrieval

Cited by 58 publications

References 8 publications

Personalized Semantic Query Expansion Based on Dynamic User Query Profile and Spreading Activation Model

Personalized Semantic Query Expansion Based on Dynamic User Query Profile and Spreading Activation Model

Diseño de una red multinivel de conocimiento certificado y su aplicación a la enseñanza universitaria

Technology-Driven Developments and Policy Implications for Mathematics Education

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