@inproceedings{shen2014a,
author = {Shen, Yelong and He, Xiaodong and Gao, Jianfeng and Deng, Li and Mesnil, Gregoire},
title = {A Latent Semantic Model with Convolutional-Pooling Structure for Information Retrieval},
booktitle = {CIKM},
year = {2014},
month = {November},
abstract = {In this paper, we propose a new latent semantic model that incorporates a convolutional-pooling structure over word sequences to learn low-dimensional, semantic vector representations for search queries and Web documents. In order to capture the rich contextual structures in a query or a document, we start with each word within a temporal context window in a word sequence to directly capture contextual features at the word n-gram level. Next, the salient word n-gram features in the word sequence are discovered by the model and are then aggregated to form a sentence-level feature vector. Finally, a non-linear transformation is applied to extract high-level semantic information to generate a continuous vector representation for the full text string. The proposed convolutional latent semantic model (CLSM) is trained on clickthrough data and is evaluated on a Web document ranking task using a large-scale, real-world data set. Results show that the proposed model effectively captures salient semantic information in queries and documents for the task while significantly outperforming previous state-of-the-art semantic models.},
url = {http://approjects.co.za/?big=en-us/research/publication/a-latent-semantic-model-with-convolutional-pooling-structure-for-information-retrieval/},
}