Published: Jul 1, 2015
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DOI: 10.4018/IJIRR.20150701pre
Volume 5
Zhongyu (Joan) Lu, Ahlam F. Sawsaa
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DOI: 10.4018/IJIRR.2015070101
Volume 5
Chung-Hong Lee, Chih-Hung Wu
In this paper, we describe our work on developing a model and method for extracting key entities from the online social messages regarding emergent events for enhancing ontology engineering...
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In this paper, we describe our work on developing a model and method for extracting key entities from the online social messages regarding emergent events for enhancing ontology engineering, enabling a sensible solution for prevention of similar disasters. Our work started with the development of an event modelling system using a data-cluster slicing approach, which combines analytics of social data and event lifecycle algorithms, allowing for large-scale emerging novel events to be quickly and accurately analyzed. Subsequently, our system computes the energy of each collected event data sets, and then encapsulates ranked temporal, spatial and topical keywords into a structured node for event-entity extraction, in order to update event ontologies for fast response of emergent events. The preliminary experimental results demonstrate that our developed system is workable, allowing for prediction of possible evolution and early warning of critical incidents with a support of dynamic entity extraction.
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MLA
Lee, Chung-Hong, and Chih-Hung Wu. "Extracting Entities of Emergent Events from Social Streams Based on a Data-Cluster Slicing Approach for Ontology Engineering." IJIRR vol.5, no.3 2015: pp.1-18. http://doi.org/10.4018/IJIRR.2015070101
APA
Lee, C. & Wu, C. (2015). Extracting Entities of Emergent Events from Social Streams Based on a Data-Cluster Slicing Approach for Ontology Engineering. International Journal of Information Retrieval Research (IJIRR), 5(3), 1-18. http://doi.org/10.4018/IJIRR.2015070101
Chicago
Lee, Chung-Hong, and Chih-Hung Wu. "Extracting Entities of Emergent Events from Social Streams Based on a Data-Cluster Slicing Approach for Ontology Engineering," International Journal of Information Retrieval Research (IJIRR) 5, no.3: 1-18. http://doi.org/10.4018/IJIRR.2015070101
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Published: Jul 1, 2015
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DOI: 10.4018/IJIRR.2015070102
Volume 5
María Herrero-Zazo, Isabel Segura-Bedmar, Janna Hastings, Paloma Martínez
Natural Language Processing (NLP) techniques can provide an interesting way to mine the growing biomedical literature, and a promising approach for new knowledge discovery. However, the major...
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Natural Language Processing (NLP) techniques can provide an interesting way to mine the growing biomedical literature, and a promising approach for new knowledge discovery. However, the major bottleneck in this area is that these systems rely on specific resources providing the domain knowledge. Domain ontologies provide a contextual framework and a semantic representation of the domain, and they can contribute to a better performance of current NLP systems. However, their contribution to information extraction has not been well studied yet. The aim of this paper is to provide insights into the potential role that domain ontologies can play in NLP. To do this, the authors apply the drug-drug interactions ontology (DINTO) to named entity recognition and relation extraction from pharmacological texts. The authors use the DDI corpus, a gold-standard for the development and evaluation of IE systems in this domain, and evaluate their results in the framework of the last SemEval-2013 DDI Extraction task.
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Herrero-Zazo, María, et al. "Application of Domain Ontologies to Natural Language Processing: A Case Study for Drug-Drug Interactions." IJIRR vol.5, no.3 2015: pp.19-38. http://doi.org/10.4018/IJIRR.2015070102
APA
Herrero-Zazo, M., Segura-Bedmar, I., Hastings, J., & Martínez, P. (2015). Application of Domain Ontologies to Natural Language Processing: A Case Study for Drug-Drug Interactions. International Journal of Information Retrieval Research (IJIRR), 5(3), 19-38. http://doi.org/10.4018/IJIRR.2015070102
Chicago
Herrero-Zazo, María, et al. "Application of Domain Ontologies to Natural Language Processing: A Case Study for Drug-Drug Interactions," International Journal of Information Retrieval Research (IJIRR) 5, no.3: 19-38. http://doi.org/10.4018/IJIRR.2015070102
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Published: Jul 1, 2015
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DOI: 10.4018/IJIRR.2015070103
Volume 5
Ruben Costa, Celson Lima
This paper introduces a novel conceptual framework to support the creation of knowledge representations based on enriched Semantic Vectors, using the classical vector space model approach extended...
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This paper introduces a novel conceptual framework to support the creation of knowledge representations based on enriched Semantic Vectors, using the classical vector space model approach extended with ontological support. One of the primary research challenges addressed here relates to the process of formalization and representation of document contents, where most existing approaches are limited and only take into account the explicit, word-based information in the document. This research explores how traditional knowledge representations can be enriched through incorporation of implicit information derived from the complex relationships (semantic associations) modelled by domain ontologies with the addition of information presented in documents. The relevant achievements pursued by this work are the following: (i) conceptualization of a model that enables the semantic enrichment of knowledge sources supported by domain experts; and (ii) implementation of a proof-of-concept, named SENSE (Semantic Enrichment knowledge Sources).
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Costa, Ruben, and Celson Lima. "Document Clustering Using an Ontology-Based Vector Space Model." IJIRR vol.5, no.3 2015: pp.39-60. http://doi.org/10.4018/IJIRR.2015070103
APA
Costa, R. & Lima, C. (2015). Document Clustering Using an Ontology-Based Vector Space Model. International Journal of Information Retrieval Research (IJIRR), 5(3), 39-60. http://doi.org/10.4018/IJIRR.2015070103
Chicago
Costa, Ruben, and Celson Lima. "Document Clustering Using an Ontology-Based Vector Space Model," International Journal of Information Retrieval Research (IJIRR) 5, no.3: 39-60. http://doi.org/10.4018/IJIRR.2015070103
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Published: Jul 1, 2015
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DOI: 10.4018/IJIRR.2015070104
Volume 5
Ning Xu, Jiangping Wang, Guojun Qi, Thomas Huang, Weiyao Lin
Previous image classification approaches mostly neglect semantics, which has two major limitations. First, categories are simply treated independently while in fact they have semantic overlaps. For...
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Previous image classification approaches mostly neglect semantics, which has two major limitations. First, categories are simply treated independently while in fact they have semantic overlaps. For example, “sedan” is a specific kind of “car”. Therefore, it's unreasonable to train a classifier to distinguish between “sedan” and “car”. Second, image feature representations used for classifying different categories are the same. However, the human perception system is believed to use different features for different objects. In this paper, we leverage semantic ontologies to solve the aforementioned problems. The authors propose an ontological random forest algorithm where the splitting of decision trees are determined by semantic relations among categories. Then hierarchical features are automatically learned by multiple-instance learning to capture visual dissimilarities at different concept levels. Their approach is tested on two image classification datasets. Experimental results demonstrate that their approach not only outperforms state-of-the-art results but also identifies semantic visual features.
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MLA
Xu, Ning, et al. "Ontological Random Forests for Image Classification." IJIRR vol.5, no.3 2015: pp.61-74. http://doi.org/10.4018/IJIRR.2015070104
APA
Xu, N., Wang, J., Qi, G., Huang, T., & Lin, W. (2015). Ontological Random Forests for Image Classification. International Journal of Information Retrieval Research (IJIRR), 5(3), 61-74. http://doi.org/10.4018/IJIRR.2015070104
Chicago
Xu, Ning, et al. "Ontological Random Forests for Image Classification," International Journal of Information Retrieval Research (IJIRR) 5, no.3: 61-74. http://doi.org/10.4018/IJIRR.2015070104
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Published: Jul 1, 2015
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DOI: 10.4018/IJIRR.2015070105
Volume 5
Julius T. Nganji, Mike Brayshaw
Existing virtual learning environments (VLEs) in educational institutions are not designed with the expectation that students with disabilities will use them. Consequently, retrieving relevant...
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Existing virtual learning environments (VLEs) in educational institutions are not designed with the expectation that students with disabilities will use them. Consequently, retrieving relevant information by some students with disabilities is a challenging task. The focus of this study was to propose the design of VLEs to incorporate ontologies that facilitate information retrieval by students with disabilities in their learning, thus serving as a semantic web-based assistive technology in education. An Ontology-Driven Disability-Aware Personalised E-Learning System (ONTODAPS) was designed and then used to recommend specific learning materials to learners based on their learning goal and disability type. Preliminary results of the evaluation of ONTODAPS, by 30 students with disabilities, indicate that 70% of the participants found ONTODAPS to offer a better personalisation, better access to learning materials (68%) and is easier to use (63%) in retrieving learning materials than Sakai. Thus ONTODAPS serves as an assistive tool in their education through retrieval of relevant learning materials in a suitable format which is compatible with their disability.
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MLA
Nganji, Julius T., and Mike Brayshaw. "Facilitating Learning Resource Retrieval for Students with Disabilities through an Ontology-Driven and Disability-Aware Virtual Learning Environment." IJIRR vol.5, no.3 2015: pp.75-98. http://doi.org/10.4018/IJIRR.2015070105
APA
Nganji, J. T. & Brayshaw, M. (2015). Facilitating Learning Resource Retrieval for Students with Disabilities through an Ontology-Driven and Disability-Aware Virtual Learning Environment. International Journal of Information Retrieval Research (IJIRR), 5(3), 75-98. http://doi.org/10.4018/IJIRR.2015070105
Chicago
Nganji, Julius T., and Mike Brayshaw. "Facilitating Learning Resource Retrieval for Students with Disabilities through an Ontology-Driven and Disability-Aware Virtual Learning Environment," International Journal of Information Retrieval Research (IJIRR) 5, no.3: 75-98. http://doi.org/10.4018/IJIRR.2015070105
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