Gated relational stacked denoising autoencoder with localized author embedding for global citation recommendation

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Dai, Tao
Yan, Wenjun
Zhang, Kaiqi
Qiu, Chen
Zhao, Xiangmo
Pan, Shirui
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2021
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Abstract

Citation recommendation is an effective and efficient way to facilitate authors finding desired references. This paper presents a novel neural network based model, called gated relational probabilistic stacked denoising autoencoder with localized author (GRSLA) embedding, for global citation recommendation task. Our model is comprised of two modules with different neural network architecture. For each citing and cited papers, we use a gated paper embedding module, which is extended from probabilistic stacked denoising autoencoder (PSDAE) by adding gated units, to obtain their paper vectors. The added gated units are able to utilize text information of cited paper to refine the vector representation of citing paper in multiple semantic levels. For an author in papers, we first apply topic model to obtain his/her semantic neighbors, and then use a localized author embedding (LAE) module to excavate author vector representation from semantic and explicit neighbors. Unlike most graph convolutional network (GCN) based methods, the LAE module is able to avoid computing global Laplacian in whole graph by taking limited neighbors. Moreover, the LAE module can also be stacked to absorb more neighbors, which makes our model have high extendibility. Based on the generation process of GRSLA, we also derive a learning algorithm of our model by maximum a posteriori (MAP) estimation. We conduct experiments on the AAN, DBLP and CORD-19 datasets, and the results show that GRSLA model works well than previous global citation recommendation methods.

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Expert Systems with Applications

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184

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Neural networks

Science & Technology

Computer Science, Artificial Intelligence

Engineering, Electrical & Electronic

Operations Research & Management Science

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Dai, T; Yan, W; Zhang, K; Qiu, C; Zhao, X; Pan, S, Gated relational stacked denoising autoencoder with localized author embedding for global citation recommendation, Expert Systems with Applications, 2021, 184

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