Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Forgetting Prevention for Cross-regional Fraud Detection with
  Heterogeneous Trade Graph   With the booming growth of e-commerce, detecting financial fraud has become
an urgent task to avoid transaction risks. Despite the successful application
of graph neural networks in fraud detection, the existing solutions are only
suitable for a narrow scope due to the limitation of data collection.
Especially when expanding a business into new territory, e.g., new cities or
new countries, developing a totally new model will bring the cost issue and
result in forgetting previous knowledge. Besides, most existing GNNs-based
solutions concentrate on either homogeneous graphs or decomposing heterogeneous
interactions into several homogeneous connections for convenience. To this end,
this study proposes a novel solution based on heterogeneous trade graphs,
namely HTG-CFD, to prevent knowledge forgetting of cross-regional fraud
detection. In particular, the heterogeneous trade graph (HTG) is constructed
from initial transaction records to explore the complex semantics among
different types of entities and relationships. Extensive experiments
demonstrate that the proposed HTG-CFD not only promotes the performance in
cross-regional scenarios but also significantly contributes to the
single-regional fraud detection. The code of the paper can be accessed at
https://github.com/YujieLi42/HTG-CFD.

8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th