Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: ATBRG: Adaptive Target-Behavior Relational Graph Network for Effective
  Recommendation   Recommender system (RS) devotes to predicting user preference to a given item
and has been widely deployed in most web-scale applications. Recently,
knowledge graph (KG) attracts much attention in RS due to its abundant
connective information. Existing methods either explore independent meta-paths
for user-item pairs over KG, or employ graph neural network (GNN) on whole KG
to produce representations for users and items separately. Despite
effectiveness, the former type of methods fails to fully capture structural
information implied in KG, while the latter ignores the mutual effect between
target user and item during the embedding propagation. In this work, we propose
a new framework named Adaptive Target-Behavior Relational Graph network (ATBRG
for short) to effectively capture structural relations of target user-item
pairs over KG. Specifically, to associate the given target item with user
behaviors over KG, we propose the graph connect and graph prune techniques to
construct adaptive target-behavior relational graph. To fully distill
structural information from the sub-graph connected by rich relations in an
end-to-end fashion, we elaborate on the model design of ATBRG, equipped with
relation-aware extractor layer and representation activation layer. We perform
extensive experiments on both industrial and benchmark datasets. Empirical
results show that ATBRG consistently and significantly outperforms
state-of-the-art methods. Moreover, ATBRG has also achieved a performance
improvement of 5.1% on CTR metric after successful deployment in one popular
recommendation scenario of Taobao APP.

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The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
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The categories of this paper are: patt-sol
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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
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The categories of this paper are: adap-org