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Analyzing the Impact of Credit Card Fraud on Economic Fluctuations of American Households Using an Adaptive Neuro-Fuzzy Inference System

Wang, Zhuqi, Zhang, Qinghe, Cheng, Zhuopei

arXiv.org Artificial Intelligence

Credit card fraud is assuming growing proportions as a major threat to the financial position of American household, leading to unpredictable changes in household economic behavior. To solve this problem, in this paper, a new hybrid analysis method is presented by using the Enhanced ANFIS. The model proposes several advances of the conventional ANFIS framework and employs a multi-resolution wavelet decomposition module and a temporal attention mechanism. The model performs discrete wavelet transformations on historical transaction data and macroeconomic indicators to generate localized economic shock signals. The transformed features are then fed into a deep fuzzy rule library which is based on Takagi-Sugeno fuzzy rules with adaptive Gaussian membership functions. The model proposes a temporal attention encoder that adaptively assigns weights to multi-scale economic behavior patterns, increasing the effectiveness of relevance assessment in the fuzzy inference stage and enhancing the capture of long-term temporal dependencies and anomalies caused by fraudulent activities. The proposed method differs from classical ANFIS which has fixed input-output relations since it integrates fuzzy rule activation with the wavelet basis selection and the temporal correlation weights via a modular training procedure. Experimental results show that the RMSE was reduced by 17.8% compared with local neuro-fuzzy models and conventional LSTM models.


How Ecommerce Businesses Can Maximize Artificial Intelligence

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Years ago, artificial intelligence (AI) was only exclusive to scientific research. Nowadays, you can also find AI in the eCommerce industry, as it has become an invaluable tool to many companies in the online space. Numerous businesses use AI to reduce operating expenses, improve analytical insights, and stay ahead of competitors. There's no doubt that AI provides many new opportunities for eCommerce, which is why more and more companies adopt this technology. The growth of AI is at a rapid pace.


How Machine Learning Can Prevent Credit Card Fraud

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Machine learning can reduce false positive and quickly detect credit card fraud. Using traditional methods to detect instances of credit card fraud slows down the process of resolving such issues. The application of machine learning in banking promises to find quicker and accurate solutions for all kinds of financial institutions. The advent of digitization in banking has introduced several cybersecurity-related issues in such finance-based organizations. For example, reported financial fraud had increased by 104% in the first quarter of 2020, compared to Q1 2019.


Data Scientist

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You'll have access to tons of data, but you'll also be cursed with tons of noise. Most humans are good and amazing, so every bad behavior is hidden behind a swarm of good behavior. To identify the baddies, you will need to look for clues as to what is going on, to look for patterns, to ask intelligent questions and look for answers, to deal with uncertainty, to find the story behind the data, to turn the data into information. You'll need to be a detective. You will create new ML models and techniques and expand on the ones we have in production.


Artificial Intelligence at American Express - Two Current Use Cases

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Ryan Owen holds an MBA from the University of South Carolina, and has rich experience in financial services, having worked with Liberty Mutual, Sun Life, and other financial firms. Ryan writes and edits AI industry trends and use-cases for Emerj's editorial and client content. American Express began as a freight forwarding company in the mid-19th century. Expanding over time to include financial products and travel services, American Express today reports some 114 million cards in force and $1.2 trillion in billed business worldwide. American Express trades on the NYSE with a market cap that exceeds $136 billion, as of November 2021.


How No-Code Platforms Can Bring AI to Small and Midsize Businesses

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Technology often follows a familiar progression. First, it's used by a small core of scientists, then the user base expands to engineers who can navigate technical nuance and jargon until finally it's made user-friendly enough that almost anyone can use it. Right now, the process for building software is making that final leap. Just as the clickable icons of Windows and Mac OS replaced obscure DOS commands, new "no-code" platforms are replacing programming languages with simple drag and drop interfaces. The implications are huge: Where it used to require a team of engineers to build a piece of software, now users with a web browser and an idea have the power to bring that idea to life themselves.


Use Machine Learning to Make Apps and AI to Detect Fraud

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Make your first machine learning model with the TensorFlow framework. Make an Android app that can analyze and predict handwritten digit data. Make an advanced app with the MNIST database of digits. Make an app that can predict the weather. Description This is our epic course with 5 projects in artificial intelligence and machine learning: 01.


How Amex Uses AI To Automate 8 Billion Risk Decisions (And Achieve 50% Less Fraud)

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There are few bigger targets for cyber criminals than credit card companies. Which is why the U.S. alone had over 270,000 reports of credit card fraud in 2019, double the 2017 rate. So what's a credit card company to do? Use artificial intelligence to sniff out fraud and block it. "We believe at American Express that we have the world's largest and most advanced machine learning system in the financial services industry," American Express' VP of risk management Anjali Dewan told me recently on the TechFirst podcast. "And these models are ... monitoring 100% of these transactions and returning 8 billion credit and fraud risk decisions in real time."


Machine learning: How to determine the right modelling targets

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This is the last blogpost of this series. We've already talked about conceptual model targets and model performance targets, now it is time to discuss the importance of data in building and evaluating models. More specifically, we will talk about three things: data quality, splitting data for evaluation, and sampling. Before we jump in, let me remind you that in the context of today's post, a model refers to a decision-generating process that applies logical or statistical techniques to transform the data it is provided into a meaningful output. I'll start with the obvious: good data quality is the foundation for producing accurate (and useful) findings from modelling.


5 More Things Business Leaders Need to Know About Machine Learning

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In a previous blog post, we explored the importance of machine learning (ML) and delved into the five most important things that business leaders need to know about ML. First, recall that supervised learning is concerned with the prediction and classification of data. Now it's time to dive deeper. We saw that accuracy (the percentage of your data that your model predicts/classifies correctly) is not always the best metric to measure the success of your model, such as when your classes are imbalanced (for example, when 99% of emails are spam and 1% non-spam). Another space where metrics such as accuracy may not be enough is when you need your model to be interpretable.