Abstract
Commonsense can be vital in some applications like Natural Language Understanding, where it is often required to resolve ambiguity arising from implicit knowledge and under-specification. In spite of the remarkable success of neural network approaches on a variety of Natural Language Processing tasks, many of them struggle to react effectively in cases that require commonsense knowledge.
In the present research paper, we take advantage of the availability of the open multilingual knowledge graph ConceptNet, by using it as an additional external resource in a Named Entity Recognition system (NER). Our proposed architecture involves BiLSTM layers combined with a CRF layer that was augmented with some features such as pre-trained word embedding layers and dropout layers. Moreover, apart from using word representations, we used also character-based representation to capture the morphological and the orthographic information. Our experiments and evaluations showed an improvement in the overall performance with +2.86 in the F1-measure.
To the best of our knowledge, there is no study relating the integration of a commonsense knowledge base in NER.
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Dekhili, G., Le, N.T., Sadat, F. (2019). Improving Named Entity Recognition with Commonsense Knowledge Pre-training. In: Ohara, K., Bai, Q. (eds) Knowledge Management and Acquisition for Intelligent Systems. PKAW 2019. Lecture Notes in Computer Science(), vol 11669. Springer, Cham. https://doi.org/10.1007/978-3-030-30639-7_2
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