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Survey: Exploiting Data Redundancy for Optimization of Deep Learning

arXiv.org Artificial Intelligence

Data redundancy is ubiquitous in the inputs and intermediate results of Deep Neural Networks (DNN). It offers many significant opportunities for improving DNN performance and efficiency and has been explored in a large body of work. These studies have scattered in many venues across several years. The targets they focus on range from images to videos and texts, and the techniques they use to detect and exploit data redundancy also vary in many aspects. There is not yet a systematic examination and summary of the many efforts, making it difficult for researchers to get a comprehensive view of the prior work, the state of the art, differences and shared principles, and the areas and directions yet to explore. This article tries to fill the void. It surveys hundreds of recent papers on the topic, introduces a novel taxonomy to put the various techniques into a single categorization framework, offers a comprehensive description of the main methods used for exploiting data redundancy in improving multiple kinds of DNNs on data, and points out a set of research opportunities for future to explore.


Billion-user Customer Lifetime Value Prediction: An Industrial-scale Solution from Kuaishou

arXiv.org Artificial Intelligence

Customer Life Time Value (LTV) is the expected total revenue that a single user can bring to a business. It is widely used in a variety of business scenarios to make operational decisions when acquiring new customers. Modeling LTV is a challenging problem, due to its complex and mutable data distribution. Existing approaches either directly learn from posterior feature distributions or leverage statistical models that make strong assumption on prior distributions, both of which fail to capture those mutable distributions. In this paper, we propose a complete set of industrial-level LTV modeling solutions. Specifically, we introduce an Order Dependency Monotonic Network (ODMN) that models the ordered dependencies between LTVs of different time spans, which greatly improves model performance. We further introduce a Multi Distribution Multi Experts (MDME) module based on the Divide-and-Conquer idea, which transforms the severely imbalanced distribution modeling problem into a series of relatively balanced sub-distribution modeling problems hence greatly reduces the modeling complexity. In addition, a novel evaluation metric Mutual Gini is introduced to better measure the distribution difference between the estimated value and the ground-truth label based on the Lorenz Curve. The ODMN framework has been successfully deployed in many business scenarios of Kuaishou, and achieved great performance. Extensive experiments on real-world industrial data demonstrate the superiority of the proposed methods compared to state-of-the-art baselines including ZILN and Two-Stage XGBoost models.


A Lesson from Google: Can AI Bias be Monitored Internally?

#artificialintelligence

Revolutions often have humble origins, a small group with big ideas gathering to plant seeds of disruption. So, it was in the dog days of summer in 1956, when 10 academics gathered on the campus of Dartmouth College to discuss how to make machines use language and form abstractions and concepts to solve the kinds of problems now reserved for humans. The conference led to the founding of a new field of study, artificial intelligence. Six decades hence, we are in the midst of an AI revolution that is already dramatically changing entire sectors like healthcare, transportation, education, banking, and retail. But AI is not without its critics. Elon Musk famously said that, "With artificial intelligence, we're summoning the demon." While Stephen Hawking believed the development of full artificial intelligence could spell the end of the human race. So, whose job is it to make sure that such a vision never comes to pass? Today on Cold Call, we've invited Professor Tsedal Neeley to discuss her case entitled, "Timnit Gebru: Silenced No More on AI Bias and The Harms of Large Language Models." Tsedal Neeley's work focuses on how leaders can scale their organizations by developing and implementing global and digital strategies.


#FinServ_2022-08-27_18-38-50.xlsx

#artificialintelligence

The graph represents a network of 1,952 Twitter users whose tweets in the requested range contained "#FinServ", or who were replied to or mentioned in those tweets. The network was obtained from the NodeXL Graph Server on Sunday, 28 August 2022 at 01:54 UTC. The requested start date was Sunday, 28 August 2022 at 00:01 UTC and the maximum number of days (going backward) was 14. The maximum number of tweets collected was 7,500. The tweets in the network were tweeted over the 6-day, 11-hour, 15-minute period from Sunday, 21 August 2022 at 12:45 UTC to Sunday, 28 August 2022 at 00:00 UTC.


Advancing conservation with AI-based facial recognition of turtles

#artificialintelligence

Finding solutions to improve turtle reidentification and supporting machine learning projects across Africa. Protecting the ecosystems around us is critical to safeguarding the future of our planet and all its living citizens. Fortunately, new artificial intelligence (AI) systems are making progress in conservation efforts worldwide, helping tackle complex problems at scale โ€“ from studying the behaviour of animal communities in the Serengeti to help conserve the diminishing ecosystem, to spotting poachers and their wounded prey to prevent species going extinct. As part of our mission to help benefit humanity with the technologies we develop, it's important we ensure diverse groups of people build the AI systems of the future so that it's equitable and fair. This includes broadening the machine learning (ML) community and engaging with wider audiences on addressing important problems using AI.


Artificial Intelligence is driving global digital revolution - Deputy Communication Minister - Ghana Business News

#artificialintelligence

Madam Ama Pomaa Boateng, the Deputy Minister of Communication and Digitalisation, says Artificial Intelligence (AI) is now driving global digital revolution and solving problems and challenges for emerging economies. AI is the ability of a computer or a robot controlled by a computer to do tasks that are usually done by humans because they require human intelligence and discernment. Madam Boateng said this in Accra at the first face-to-face meet-up networking event on AI, organised by the Ghana-India Kofi Annan Centre of Excellence in ICT (GI-KACE). "Financial Inclusion using AI is a very good thing because it is part of the Sustainable Development Goals," she said. "It is actually seven out of the 17 goals that government and other institutions are working on by using AI to solve problems โ€ฆ.".


Patents and AI inventions: Recent court rulings and broader policy questions

#artificialintelligence

Can an artificial intelligence (AI) system be a named inventor on a United States patent? No, says a federal appeals court in a decision issued earlier this month. The case, Thaler v. Vidal, arose from two patent applications filed in 2019 by Stephen Thaler, naming an AI system he calls DABUS (for "Device for the Autonomous Bootstrapping of Unified Sentience") as the "inventor." After the U.S. Patent and Trademark Office (PTO) informed Thaler that the applications were incomplete because they did not list a human inventor, he filed a complaint in a federal district court in Virginia. In September 2021, that court ruled against Thaler, citing "the overwhelming evidence that Congress intended to limit the definition of'inventor' to natural persons."


Human-level AI is a giant risk. Why are we entrusting its development to tech CEOs?

#artificialintelligence

Technology companies are racing to develop human-level artificial intelligence, whose development poses one of the greatest risks to humanity. Last week, John Carmack, a software engineer and video game developer, announced that he has raised 20 million dollars to start Keen Technologies, a company devoted to building fully human-level AI. He is not the only one. There are currently 72 projects around the world focused on developing a human-level AI, also known as an AGI -- meaning an AI which can do any cognitive task at least as well as humans can. Many have raised concerns about the effects that even today's use of artificial intelligence, which is far from human-level, already has on our society.


Efficient liver segmentation with 3D CNN using computed tomography scans

arXiv.org Artificial Intelligence

The liver is one of the most critical metabolic organs in vertebrates due to its vital functions in the human body, such as detoxification of the blood from waste products and medications. Liver diseases due to liver tumors are one of the most common mortality reasons around the globe. Hence, detecting liver tumors in the early stages of tumor development is highly required as a critical part of medical treatment. Many imaging modalities can be used as aiding tools to detect liver tumors. Computed tomography (CT) is the most used imaging modality for soft tissue organs such as the liver. This is because it is an invasive modality that can be captured relatively quickly. This paper proposed an efficient automatic liver segmentation framework to detect and segment the liver out of CT abdomen scans using the 3D CNN DeepMedic network model. Segmenting the liver region accurately and then using the segmented liver region as input to tumors segmentation method is adopted by many studies as it reduces the false rates resulted from segmenting abdomen organs as tumors. The proposed 3D CNN DeepMedic model has two pathways of input rather than one pathway, as in the original 3D CNN model. In this paper, the network was supplied with multiple abdomen CT versions, which helped improve the segmentation quality. The proposed model achieved 94.36%, 94.57%, 91.86%, and 93.14% for accuracy, sensitivity, specificity, and Dice similarity score, respectively. The experimental results indicate the applicability of the proposed method.


Machine Learning Models Evaluation and Feature Importance Analysis on NPL Dataset

arXiv.org Artificial Intelligence

Predicting the probability of non-performing loans for individuals has a vital and beneficial role for banks to decrease credit risk and make the right decisions before giving the loan. The trend to make these decisions are based on credit study and in accordance with generally accepted standards, loan payment history, and demographic data of the clients. In this work, we evaluate how different Machine learning models such as Random Forest, Decision tree, KNN, SVM, and XGBoost perform on the dataset provided by a private bank in Ethiopia. Further, motivated by this evaluation we explore different feature selection methods to state the important features for the bank. Our findings show that XGBoost achieves the highest F1 score on the KMeans SMOTE over-sampled data. We also found that the most important features are the age of the applicant, years of employment, and total income of the applicant rather than collateral-related features in evaluating credit risk. Work done when the authors were a research intern at Chapa. Equally contributed to this work.