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In the faceless world of the Internet,online fraud is one of the greatest reasons of loss for web merchants.Advanced solutions are needed to protect e businesses from the constant problems of fraud.Many popular fraud detection algorithms…

网络与互联网体系结构 · 计算机科学 2010-06-15 P. Srinivasulu , J. Ranga Rao , I. Ramesh Babu

In the face of global economic uncertainty, financial auditing has become essential for regulatory compliance and risk mitigation. Traditional manual auditing methods are increasingly limited by large data volumes, complex business…

风险管理 · 定量金融 2026-01-09 Tingyu Yuan , Xi Zhang , Xuanjing Chen

Value Added Tax (VAT) fraud erodes public revenue and puts legitimate businesses at a disadvantaged position thereby impacting inequality. Identifying and combating VAT fraud before it occurs is therefore important for welfare. This paper…

Financial fraud is the cause of multi-billion dollar losses annually. Traditionally, fraud detection systems rely on rules due to their transparency and interpretability, key features in domains where decisions need to be explained.…

机器学习 · 计算机科学 2024-08-26 João Lucas Martins , João Bravo , Ana Sofia Gomes , Carlos Soares , Pedro Bizarro

Fraud detection is essential in financial services, with the potential of greatly reducing criminal activities and saving considerable resources for businesses and customers. We address online fraud detection, which consists of classifying…

机器学习 · 计算机科学 2020-02-17 David Aparício , Ricardo Barata , João Bravo , João Tiago Ascensão , Pedro Bizarro

Managing and hedging the risks associated with Variable Annuity (VA) products require intraday valuation of key risk metrics for these products. The complex structure of VA products and computational complexity of their accurate evaluation…

计算金融 · 定量金融 2016-06-28 Seyed Amir Hejazi , Kenneth R. Jackson

Electronic payment platforms are estimated to process billions oftransactions daily, with the cumulative value of these transactionspotentially reaching into the trillions. Even a minor error within thishigh-volume environment could…

密码学与安全 · 计算机科学 2025-07-04 Mao Luo , Zhi Wang , Yiwen Huang , Qingyun Zhang , Zhouxing Su , Zhipeng Lv , Wen Hu , Jianguo Li

We introduce a neural network approach for assessing the risk of a portfolio of assets and liabilities over a given time period. This requires a conditional valuation of the portfolio given the state of the world at a later time, a problem…

风险管理 · 定量金融 2021-05-27 Patrick Cheridito , John Ery , Mario V. Wüthrich

Since the emergence of joint-stock companies, financial fraud by listed firms has repeatedly undermined capital markets. Fraud is difficult to detect because of covert tactics and the high labor and time costs of audits. Traditional…

机器学习 · 计算机科学 2025-12-11 Xiao Li

Company financial risk is ubiquitous and early risk assessment for listed companies can avoid considerable losses. Traditional methods mainly focus on the financial statements of companies and lack the complex relationships among them.…

机器学习 · 计算机科学 2023-02-01 Wendong Bi , Bingbing Xu , Xiaoqian Sun , Zidong Wang , Huawei Shen , Xueqi Cheng

The main contribution of this paper is the development of a new decision tree algorithm. The proposed approach allows users to guide the algorithm through the data partitioning process. We believe this feature has many applications but in…

机器学习 · 统计学 2020-10-27 Cédric Beaulac , Jeffrey S. Rosenthal

An investor is estimating net present value of a firm project and performs risk analysis. Usually it is created portfolio hierarchies and make comparison of variants of project based on these hierarchies. Then one finds that portfolio which…

物理与社会 · 物理学 2008-12-02 Jana Hudakova , Ondrej Hudak

Verification planning is a sequential decision-making problem that specifies a set of verification activities (VA) and correction activities (CA) at different phases of system development. While VAs are used to identify errors and defects,…

软件工程 · 计算机科学 2022-04-05 Peng Xu , Xinwei Deng , Alejandro Salado

This paper introduces a new methodology for constructing a network of companies called a dynamic asset graph. This is similar to the dynamic asset tree studied recently, as both are based on correlations between asset returns. However, the…

统计力学 · 物理学 2009-11-10 J. -P. Onnela , A. Chakraborti , K. Kaski , J. Kertesz , A. Kanto

In this report, I present a deep learning approach to conduct a natural language processing (hereafter NLP) binary classification task for analyzing financial-fraud texts. First, I searched for regulatory announcements and enforcement…

计算与语言 · 计算机科学 2023-08-09 Qiuru Li

Tax evasion causes severe losses of government revenues and disturbs the economic order of fair competition. To help alleviate this problem, the latest tax evasion detection solutions utilize expert knowledge to extract features and then…

机器学习 · 计算机科学 2026-05-27 Yiming Xu , Bin Shi , Bo Dong , Jiaxiang Wang , Hua Wei , Qinghua Zheng

The high performance of tree ensemble classifiers benefits from a large set of rules, which, in turn, makes the models hard to understand. To improve interpretability, existing methods extract a subset of rules for approximation using model…

机器学习 · 计算机科学 2025-01-03 Zhen Li , Weikai Yang , Jun Yuan , Jing Wu , Changjian Chen , Yao Ming , Fan Yang , Hui Zhang , Shixia Liu

We study the method for detecting relationship changes in financial markets and providing human-interpretable network visualization to support the decision-making of fund managers dealing with multi-assets. First, we construct co-occurrence…

综合金融 · 定量金融 2020-11-17 Makoto Naraoka , Teruaki Hayashi , Takaaki Yoshino , Toshiaki Sugie , Kota Takano , Yukio Ohsawa

Performing company valuations within the domain of biotechnology, pharmacy and medical technology is a challenging task, especially when considering the unique set of risks biotech start-ups face when entering new markets. Companies…

信息检索 · 计算机科学 2020-10-20 Albert Weichselbraun , Philipp Kuntschik , Sandro Hörler

In enterprise data pipelines, data insertions occur periodically and may impact downstream services if data quality issues are not addressed. Typically, such problems can be investigated and fixed by on-call engineers, but locating the…

数据库 · 计算机科学 2024-08-07 Xinwei Lin , Jing Zhao , Peng Di , Chuan Xiao , Rui Mao , Yan Ji , Makoto Onizuka , Zishuo Ding , Weiyi Shang , Jianbin Qin
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