Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: DP-GCN: Node Classification Based on Both Connectivity and Topology
  Structure Convolutions for Risky Seller Detection   A payment network contains transactions between sellers and buyers. Detecting
risky (or bad) sellers on such a payment network is crucial to payment service
providers for risk management and legal compliance. In this research, we
formulate this task as a node classification task. Specifically, we aim to
predict a label for each seller in a payment network, by analysing its
properties and/or interactions. Nodes residing in different parts of a payment
network can have similar local topology structures. Such local topology
structures reveal sellers' business roles, eg., supplier, drop-shipper, or
retailer. We note that many existing solutions for graph-based node
classification only consider node connectivity but not the similarity between
node's local topology structure. Motivated by business need, we present a
dual-path graph convolution network, named DP-GCN, for node classification.
DP-GCN considers both node connectivity and topology structure similarity. The
proposed model consists of three main modules: (i) a C-GCN module to capture
connectivity relationships between nodes, (ii) a T-GCN module to capture
topology structure similarities between nodes, and (iii) a multi-head
self-attention module to align both properties. We evaluate DP-GCN on seven
benchmark datasets against diverse baselines. We also provide a case study of
running DP-GCN on three large-scale payment networks from PayPal, one of the
leading payment service providers. Experimental results demonstrate DP-GCN's
effectiveness and practicability.

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The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
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The categories of this paper are: supr-con
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The categories of this paper are: eess
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The categories of this paper are: econ
4
The categories of this paper are: cond-mat
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The categories of this paper are: q-fin
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The categories of this paper are: hep-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: adap-org