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Exact Penalty Method for Federated Learning

arXiv.org Artificial Intelligence

Federated learning has burgeoned recently in machine learning, giving rise to a variety of research topics. Popular optimization algorithms are based on the frameworks of the (stochastic) gradient descent methods or the alternating direction method of multipliers. In this paper, we deploy an exact penalty method to deal with federated learning and propose an algorithm, FedEPM, that enables to tackle four critical issues in federated learning: communication efficiency, computational complexity, stragglers' effect, and data privacy. Moreover, it is proven to be convergent and testified to have high numerical performance.


Variable-rate hierarchical CPC leads to acoustic unit discovery in speech

arXiv.org Artificial Intelligence

The success of deep learning comes from its ability to capture the hierarchical structure of data by learning high-level representations defined in terms of low-level ones. In this paper we explore self-supervised learning of hierarchical representations of speech by applying multiple levels of Contrastive Predictive Coding (CPC). We observe that simply stacking two CPC models does not yield significant improvements over single-level architectures. Inspired by the fact that speech is often described as a sequence of discrete units unevenly distributed in time, we propose a model in which the output of a low-level CPC module is non-uniformly downsampled to directly minimize the loss of a high-level CPC module. The latter is designed to also enforce a prior of separability and discreteness in its representations by enforcing dissimilarity of successive high-level representations through focused negative sampling, and by quantization of the prediction targets. Accounting for the structure of the speech signal improves upon single-level CPC features and enhances the disentanglement of the learned representations, as measured by downstream speech recognition tasks, while resulting in a meaningful segmentation of the signal that closely resembles phone boundaries.


An Agent-Based Fleet Management Model for First- and Last-Mile Services

arXiv.org Artificial Intelligence

With the growth of cars and car-sharing applications, commuters in many cities, particularly developing countries, are shifting away from public transport. These shifts have affected two key stakeholders: transit operators and first- and last-mile (FLM) services. Although most cities continue to invest heavily in bus and metro projects to make public transit attractive, ridership in these systems has often failed to reach targeted levels. FLM service providers also experience lower demand and revenues in the wake of shifts to other means of transport. Effective FLM options are required to prevent this phenomenon and make public transport attractive for commuters. One possible solution is to forge partnerships between public transport and FLM providers that offer competitive joint mobility options. Such solutions require prudent allocation of supply and optimised strategies for FLM operations and ride-sharing. To this end, we build an agent- and event-based simulation model which captures interactions between passengers and FLM services using statecharts, vehicle routing models, and other trip matching rules. An optimisation model for allocating FLM vehicles at different transit stations is proposed to reduce unserved requests. Using real-world metro transit demand data from Bengaluru, India, the effectiveness of our approach in improving FLM connectivity and quantifying the benefits of sharing trips is demonstrated.


[Job-9238] Data Engineer (Data Developer Pl) at CI&T - Brazil

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Find open roles in Artificial Intelligence (AI), Machine Learning (ML), Natural Language Processing (NLP), Computer Vision (CV), Data Engineering, Data Analytics, Big Data, and Data Science in general, filtered by job title or popular skill, toolset and products used.


What is Artificial Intelligence? Definition, History and Types - projectcubicle

#artificialintelligence

Artificial intelligence (AI) is the practice of simulating of human intelligence in machines that are coded to think like people with the help of software tools. The concept is applicable to any type of machine that demonstrates skills related to human mind. Simply put, Artificial Intelligence (AI) is a way of associating features such as learning, motion, creativity, reasoning, social intelligence, etc. that human beings possess with a computer or a computer-controlled robot. Designing a computer, robots, and computer software are the outcomes of the term "Artificial Intelligence". It is achieved by working on the human brain and examining the process of brain cognition.


Argentina vs Australia predictions: World Cup 2022

Al Jazeera

The second match of the World Cup's knockout phase will pit two-time champions Argentina against underdogs Australia. Kashef, our artificial intelligence (AI) robot, has analysed more than 200 metrics, including the number of wins, goals scored and FIFA rankings, from matches played over the past century to see who is most likely to win. Prediction: At 76 percent, Kashef strongly favours Argentina to take the win today and move on to the quarter-finals where they are expected to take on three-time runners-up the Netherlands. For the Socceroos, a win is not totally off the cards. Australia beat Argentina back in 1988.


Netherlands vs USA predictions: World Cup 2022

Al Jazeera

The first match of the World Cup knockout phase will pit three times runners-up the Netherlands against the USA. Kashef, our artificial intelligence (AI) robot, has analysed more than 200 metrics, including the number of wins, goals scored and FIFA rankings, from matches played over the past century to see who is most likely to win. Prediction: The Netherlands and the USA have met five times, with the Netherlands winning four of these. The Americans will be hoping they can repeat their June 2015 winning performance and deliver another one of this tournament's major upsets. Based on historic performance, Kashef predicts the Netherlands to take the win and battle it out with Argentina in the quarter-finals on December 9.


Artificial Intelligence: What is it and why do we need to regulate it? Know all details here

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Today, billions of people use Artificial Intelligence at some level globally. This also alarms governments and humans regarding the unprecedented impacts of AI, machine learning, and big data on civilisation.


A Report on the Euphemisms Detection Shared Task

arXiv.org Artificial Intelligence

This paper presents The Shared Task on Euphemism Detection for the Third Workshop on Figurative Language Processing (FigLang 2022) held in conjunction with EMNLP 2022. Participants were invited to investigate the euphemism detection task: given input text, identify whether it contains a euphemism. The input data is a corpus of sentences containing potentially euphemistic terms (PETs) collected from the GloWbE corpus (Davies and Fuchs, 2015), and are human-annotated as containing either a euphemistic or literal usage of a PET. In this paper, we present the results and analyze the common themes, methods and findings of the participating teams


A Survey on Medical Document Summarization

arXiv.org Artificial Intelligence

The rise of the internet and the corresponding digitization of many aspects of daily life has had a profound impact on society leading to information overload [18]. The sheer amount of information available today can be overwhelming. To combat this, individuals can use summarization techniques to distill the information down to its most essential points. The internet also had a profound impact on medical science. With the proliferation of online health tools, it is now easier than ever before to access medical information and resources [88]. For example, individuals can easily search for medical information, research medical conditions and treatments, and find healthcare providers. Additionally, social media platforms have provided a platform for medical professionals to collaborate, share information, and discuss current medical topics. This has allowed medical professionals to quickly access the latest research, treatments, and developments in the field.