@inproceedings{tymoshenko-etal-2017-ranking,
title = "Ranking Kernels for Structures and Embeddings: A Hybrid Preference and Classification Model",
author = "Tymoshenko, Kateryna and
Bonadiman, Daniele and
Moschitti, Alessandro",
editor = "Palmer, Martha and
Hwa, Rebecca and
Riedel, Sebastian",
booktitle = "Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing",
month = sep,
year = "2017",
address = "Copenhagen, Denmark",
publisher = "Association for Computational Linguistics",
url = "https://aclanthology.org/D17-1093",
doi = "10.18653/v1/D17-1093",
pages = "897--902",
abstract = "Recent work has shown that Tree Kernels (TKs) and Convolutional Neural Networks (CNNs) obtain the state of the art in answer sentence reranking. Additionally, their combination used in Support Vector Machines (SVMs) is promising as it can exploit both the syntactic patterns captured by TKs and the embeddings learned by CNNs. However, the embeddings are constructed according to a classification function, which is not directly exploitable in the preference ranking algorithm of SVMs. In this work, we propose a new hybrid approach combining preference ranking applied to TKs and pointwise ranking applied to CNNs. We show that our approach produces better results on two well-known and rather different datasets: WikiQA for answer sentence selection and SemEval cQA for comment selection in Community Question Answering.",
}
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%0 Conference Proceedings
%T Ranking Kernels for Structures and Embeddings: A Hybrid Preference and Classification Model
%A Tymoshenko, Kateryna
%A Bonadiman, Daniele
%A Moschitti, Alessandro
%Y Palmer, Martha
%Y Hwa, Rebecca
%Y Riedel, Sebastian
%S Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing
%D 2017
%8 September
%I Association for Computational Linguistics
%C Copenhagen, Denmark
%F tymoshenko-etal-2017-ranking
%X Recent work has shown that Tree Kernels (TKs) and Convolutional Neural Networks (CNNs) obtain the state of the art in answer sentence reranking. Additionally, their combination used in Support Vector Machines (SVMs) is promising as it can exploit both the syntactic patterns captured by TKs and the embeddings learned by CNNs. However, the embeddings are constructed according to a classification function, which is not directly exploitable in the preference ranking algorithm of SVMs. In this work, we propose a new hybrid approach combining preference ranking applied to TKs and pointwise ranking applied to CNNs. We show that our approach produces better results on two well-known and rather different datasets: WikiQA for answer sentence selection and SemEval cQA for comment selection in Community Question Answering.
%R 10.18653/v1/D17-1093
%U https://aclanthology.org/D17-1093
%U https://doi.org/10.18653/v1/D17-1093
%P 897-902
Markdown (Informal)
[Ranking Kernels for Structures and Embeddings: A Hybrid Preference and Classification Model](https://aclanthology.org/D17-1093) (Tymoshenko et al., EMNLP 2017)
ACL