Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multi-Interest Network with Dynamic Routing for Recommendation at Tmall   Industrial recommender systems usually consist of the matching stage and the
ranking stage, in order to handle the billion-scale of users and items. The
matching stage retrieves candidate items relevant to user interests, while the
ranking stage sorts candidate items by user interests. Thus, the most critical
ability is to model and represent user interests for either stage. Most of the
existing deep learning-based models represent one user as a single vector which
is insufficient to capture the varying nature of user's interests. In this
paper, we approach this problem from a different view, to represent one user
with multiple vectors encoding the different aspects of the user's interests.
We propose the Multi-Interest Network with Dynamic routing (MIND) for dealing
with user's diverse interests in the matching stage. Specifically, we design a
multi-interest extractor layer based on capsule routing mechanism, which is
applicable for clustering historical behaviors and extracting diverse
interests. Furthermore, we develop a technique named label-aware attention to
help learn a user representation with multiple vectors. Through extensive
experiments on several public benchmarks and one large-scale industrial dataset
from Tmall, we demonstrate that MIND can achieve superior performance than
state-of-the-art methods for recommendation. Currently, MIND has been deployed
for handling major online traffic at the homepage on Mobile Tmall App.

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The categories of this paper are: adap-org
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The categories of this paper are: nucl-th
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The categories of this paper are: physics
28
The categories of this paper are: alg-geom
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The categories of this paper are: math
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The categories of this paper are: astro-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: funct-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: solv-int
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The categories of this paper are: eess
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The categories of this paper are: gr-qc
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The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: cond-mat
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The categories of this paper are: comp-gas