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Deep Reinforcement Learning for AGV Routing

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This mapping will be included in an AGV Picking Simulation Model that will be used for testing our routing strategies. Dijkstra's algorithm is an optimization algorithm that solves the single-source shortest path problem for a directed graph with weighted edges (non-negative weights). This length can be the absolute length of the path, it can also be computed considering other constraints situated on the edges or the nodes. These parameters will vary in time, therefore let's use a reinforcement learning approach to select the optimal route from these candidates in accordance with this state.


Growing role for AI in fresh produce

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There is a growing role for artificial intelligence within horticulture, experts have claimed – but it is not the silver bullet many people think. Speaking at World of Fresh Ideas, Anthony Atlas, head of product and growth at agronomic machine-learning specialist ClimateAI, outlined the benefits and pitfalls of AI use on farms. Describing AI as "systems that generate predictions from past correlations – a giant pattern-identification machine", Atlas said AI is only as good as the training it receives. He stressed that it is not easy to build, and that there isn't one single system that does everything, but instead each task is done by a separate model trained to perform a particular task. In horticulture, AI is being used as a decision-support system in climate and weather forecasting, imagery interpretation and precision automation of greenhouses. Benefits of AI include more complexity, nuance and power, the ability to cheaply automate repetitive tasks, and the fact it is more lightweight than a supercomputer.


Artificial Intelligence for Rapid Exclusion of COVID-19 Infection

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An international retrospective study finds that infection with SARS-CoV-2, the virus that causes COVID-19, creates subtle electrical changes in the heart. An AI-enhanced EKG can detect these changes and potentially be used as a rapid, reliable COVID-19 screening test to rule out COVID-19 infection. The AI-enhanced EKG was able to detect COVID-19 infection in the test with a positive predictive value -- people infected -- of 37% and a negative predictive value -- people not infected -- of 91%. When additional normal control subjects were added to reflect a 5% prevalence of COVID-19 -- similar to a real-world population -- the negative predictive value jumped to 99.2%. The findings are published in Mayo Clinic Proceedings.


Random Forest Algorithm in Python from Scratch

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The intuition behind the random forest algorithm can be split into two big parts: the random part and the forest part. Let us start with the latter. A forest in real life is made up of a bunch of trees. A random forest classifier is made up of a bunch of decision tree classifiers (here and throughout the text -- DT). Each DT in an RF algorithm is completely independent of one another.


How to run (Model-Agnostic Meta-Learning) MAML algorithm

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MAML is a class of meta-learning algorithms created by Stanford Research and UC Berkeley Alum Dr. Chelsea Finn. MAML was inspired by the idea behind the question that how much data is really needed to learn about something. Can we teach algorithms to learn how to learn? Taken from Chelsea Finn's original research: MAML is designed such that it trains a model on a variety of tasks such that it can learn a new learning task with only a small number of training samples. MAML introduces an outer loop called meta-training.


A Startup Is Launching a New Brand Studio for Virtual Humans

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A startup that made a name for itself designing AI avatar clones of celebrities is turning its attention towards brands. Patrick Kulp is an emerging tech reporter at Adweek.


Machine Learning: predicting bank loan defaults

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The dataset contains information about credit applicants. Banks, globally, use this kind of dataset and type of informative data to create models to help in deciding on who to accept/refuse for a loan. After all the exploratory data analysis, cleansing and dealing with all the anomalies we might (will) find along the way, the patterns of a good/bad applicant will be exposed to be learned by machine learning models. The goal is to train the best machine learning model to maximize the predictive capability of deeply understanding the past customer's profile minimizing the risk of future loan defaults. The metric used for the models' evaluation is the ROC AUC given that we're dealing with a highly unbalanced data.


Governing algorithms

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AI could well have been nominated Person of the Year 2020 by Time magazine due to huge media attention, in-depth scientific scrutiny and hot policy and regulatory debates that swirled around the great opportunities and enormous risks it poses. However, in 2021 and beyond, we should not stop talking about AI. The goal of this whitepaper is to contribute towards an inclusive development of AI and help restore and strengthen trust between policymakers and the public. This calls for a greater effort to understand AI's effects more clearly and develop explainable and accountable algorithms. Furthermore, there is a need for strong evaluation frameworks that can assess not only the performance but also the performance and socio-economic impact of AI.


How to Do Hierarchical Clustering in Python ? 5 Easy Steps Only

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Hierarchical Clustering uses the distance based approach between the neighbor datapoints for clustering. Each data point is linked to its nearest neighbors. There are two ways you can do Hierarchical clustering Agglomerative that is bottom-up approach clustering and Divisive uses top-down approaches for clustering. In this tutorial, I will use the popular approach Agglomerative way. In order to find the number of subgroups in the dataset, you use dendrogram. It allows you to see linkages, relatedness using the tree graph. You will find many use cases for this type of clustering and some of them are DNA sequencing, Sentiment Analysis, Tracking Virus Diseases e.t.c. Popular Use Cases are Hospital Resource Management, Business Process Management, and Social Network Analysis. Here we are importing dendrogram, linkage, cluster, and cophenet from the scipy.cluster.hierarchy


Mastercard cyber chief on using AI in the fight against fraud - Raconteur

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The fight against fraud has always been a messy business, but it's especially grisly in the digital age. To keep ahead of the cybercriminals, investment in technology – particularly artificial intelligence – is paramount, says Ajay Bhalla, president of cyber and intelligence solutions at Mastercard. Since the opening salvo of the coronavirus crisis, cybercriminals have launched increasingly sophisticated attacks across a multitude of channels, taking advantage of heightened emotions and poor online security. Some £1.26 billion was lost to financial fraud in the UK in 2020, according to UK Finance, a trade association, while there was a 43% year-on-year explosion in internet banking fraud losses. The banking industry managed to stop some £1.6 billion of fraud over the course of the year, equivalent to £6.73 in every £10 of attempted fraud.