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        <title>Joint Learning from Labeled and Unlabeled Data for Information Retrieval</title>
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    <abstract>Recently, a significant number of studies have focused on neural information retrieval (IR) models. One category of works use unlabeled data to train general word embeddings based on term proximity, which can be integrated into traditional IR models. The other category employs labeled data (e.g. click-through data) to train end-to-end neural IR models consisting of layers for target-specific representation learning. The latter idea accounts better for the IR task and is favored by recent research works, which is the one we will follow in this paper. We hypothesize that general semantics learned from unlabeled data can complement task-specific representation learned from labeled data of limited quality, and that a combination of the two is favorable. To this end, we propose a learning framework which can benefit from both labeled and more abundant unlabeled data for representation learning in the context of IR. Through a joint learning fashion in a single neural framework, the learned representation is optimized to minimize both the supervised loss on query-document matching and the unsupervised loss on text reconstruction. Standard retrieval experiments on TREC collections indicate that the joint learning methodology leads to significant better performance of retrieval over several strong baselines for IR.</abstract>
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%0 Conference Proceedings
%T Joint Learning from Labeled and Unlabeled Data for Information Retrieval
%A Li, Bo
%A Cheng, Ping
%A Jia, Le
%Y Bender, Emily M.
%Y Derczynski, Leon
%Y Isabelle, Pierre
%S Proceedings of the 27th International Conference on Computational Linguistics
%D 2018
%8 August
%I Association for Computational Linguistics
%C Santa Fe, New Mexico, USA
%F li-etal-2018-joint
%X Recently, a significant number of studies have focused on neural information retrieval (IR) models. One category of works use unlabeled data to train general word embeddings based on term proximity, which can be integrated into traditional IR models. The other category employs labeled data (e.g. click-through data) to train end-to-end neural IR models consisting of layers for target-specific representation learning. The latter idea accounts better for the IR task and is favored by recent research works, which is the one we will follow in this paper. We hypothesize that general semantics learned from unlabeled data can complement task-specific representation learned from labeled data of limited quality, and that a combination of the two is favorable. To this end, we propose a learning framework which can benefit from both labeled and more abundant unlabeled data for representation learning in the context of IR. Through a joint learning fashion in a single neural framework, the learned representation is optimized to minimize both the supervised loss on query-document matching and the unsupervised loss on text reconstruction. Standard retrieval experiments on TREC collections indicate that the joint learning methodology leads to significant better performance of retrieval over several strong baselines for IR.
%U https://aclanthology.org/C18-1025
%P 293-302

Markdown (Informal)

[Joint Learning from Labeled and Unlabeled Data for Information Retrieval](https://aclanthology.org/C18-1025) (Li et al., COLING 2018)

• Joint Learning from Labeled and Unlabeled Data for Information Retrieval (Li et al., COLING 2018)

ACL

• Bo Li, Ping Cheng, and Le Jia. 2018. Joint Learning from Labeled and Unlabeled Data for Information Retrieval. In Proceedings of the 27th International Conference on Computational Linguistics, pages 293–302, Santa Fe, New Mexico, USA. Association for Computational Linguistics.