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AI for Global Climate Cooperation: Modeling Global Climate Negotiations, Agreements, and Long-Term Cooperation in RICE-N

arXiv.org Artificial Intelligence

Comprehensive global cooperation is essential to limit global temperature increases while continuing economic development, e.g., reducing severe inequality or achieving long-term economic growth. Achieving long-term cooperation on climate change mitigation with n strategic agents poses a complex game-theoretic problem. For example, agents may negotiate and reach climate agreements, but there is no central authority to enforce adherence to those agreements. Hence, it is critical to design negotiation and agreement frameworks that foster cooperation, allow all agents to meet their individual policy objectives, and incentivize long-term adherence. This is an interdisciplinary challenge that calls for collaboration between researchers in machine learning, economics, climate science, law, policy, ethics, and other fields. In particular, we argue that machine learning is a critical tool to address the complexity of this domain. To facilitate this research, here we introduce RICE-N, a multi-region integrated assessment model that simulates the global climate and economy, and which can be used to design and evaluate the strategic outcomes for different negotiation and agreement frameworks. We also describe how to use multi-agent reinforcement learning to train rational agents using RICE-N. This framework underpinsAI for Global Climate Cooperation, a working group collaboration and competition on climate negotiation and agreement design. Here, we invite the scientific community to design and evaluate their solutions using RICE-N, machine learning, economic intuition, and other domain knowledge. More information can be found on www.ai4climatecoop.org.


OCFR 2022: Competition on Occluded Face Recognition From Synthetically Generated Structure-Aware Occlusions

arXiv.org Artificial Intelligence

This work summarizes the IJCB Occluded Face Recognition Competition 2022 (IJCB-OCFR-2022) embraced by the 2022 International Joint Conference on Biometrics (IJCB 2022). OCFR-2022 attracted a total of 3 participating teams, from academia. Eventually, six valid submissions were submitted and then evaluated by the organizers. The competition was held to address the challenge of face recognition in the presence of severe face occlusions. The participants were free to use any training data and the testing data was built by the organisers by synthetically occluding parts of the face images using a well-known dataset. The submitted solutions presented innovations and performed very competitively with the considered baseline. A major output of this competition is a challenging, realistic, and diverse, and publicly available occluded face recognition benchmark with well defined evaluation protocols.


Fair Division meets Vehicle Routing: Fairness for Drivers with Monotone Profits

arXiv.org Artificial Intelligence

We propose a new model for fair division and vehicle routing, where drivers have monotone profit preferences, and their vehicles have feasibility constraints, for customer requests. For this model, we design two new axiomatic notions for fairness for drivers: FEQ1 and FEF1. FEQ1 encodes driver pairwise bounded equitability. FEF1 encodes driver pairwise bounded envy freeness. We compare FEQ1 and FEF1 with popular fair division notions such as EQ1 and EF1. We also give algorithms for guaranteeing FEQ1 and FEF1, respectively.


Fast & Furious: Modelling Malware Detection as Evolving Data Streams

arXiv.org Artificial Intelligence

Malware is a major threat to computer systems and imposes many challenges to cyber security. Targeted threats, such as ransomware, cause millions of dollars in losses every year. The constant increase of malware infections has been motivating popular antiviruses (AVs) to develop dedicated detection strategies, which include meticulously crafted machine learning (ML) pipelines. However, malware developers unceasingly change their samples' features to bypass detection. This constant evolution of malware samples causes changes to the data distribution (i.e., concept drifts) that directly affect ML model detection rates, something not considered in the majority of the literature work. In this work, we evaluate the impact of concept drift on malware classifiers for two Android datasets: DREBIN (about 130K apps) and a subset of AndroZoo (about 285K apps). We used these datasets to train an Adaptive Random Forest (ARF) classifier, as well as a Stochastic Gradient Descent (SGD) classifier. We also ordered all datasets samples using their VirusTotal submission timestamp and then extracted features from their textual attributes using two algorithms (Word2Vec and TF-IDF). Then, we conducted experiments comparing both feature extractors, classifiers, as well as four drift detectors (DDM, EDDM, ADWIN, and KSWIN) to determine the best approach for real environments. Finally, we compare some possible approaches to mitigate concept drift and propose a novel data stream pipeline that updates both the classifier and the feature extractor. To do so, we conducted a longitudinal evaluation by (i) classifying malware samples collected over nine years (2009-2018), (ii) reviewing concept drift detection algorithms to attest its pervasiveness, (iii) comparing distinct ML approaches to mitigate the issue, and (iv) proposing an ML data stream pipeline that outperformed literature approaches.


Where is VALDO? VAscular Lesions Detection and segmentatiOn challenge at MICCAI 2021

arXiv.org Artificial Intelligence

Imaging markers of cerebral small vessel disease provide valuable information on brain health, but their manual assessment is time-consuming and hampered by substantial intra- and interrater variability. Automated rating may benefit biomedical research, as well as clinical assessment, but diagnostic reliability of existing algorithms is unknown. Here, we present the results of the \textit{VAscular Lesions DetectiOn and Segmentation} (\textit{Where is VALDO?}) challenge that was run as a satellite event at the international conference on Medical Image Computing and Computer Aided Intervention (MICCAI) 2021. This challenge aimed to promote the development of methods for automated detection and segmentation of small and sparse imaging markers of cerebral small vessel disease, namely enlarged perivascular spaces (EPVS) (Task 1), cerebral microbleeds (Task 2) and lacunes of presumed vascular origin (Task 3) while leveraging weak and noisy labels. Overall, 12 teams participated in the challenge proposing solutions for one or more tasks (4 for Task 1 - EPVS, 9 for Task 2 - Microbleeds and 6 for Task 3 - Lacunes). Multi-cohort data was used in both training and evaluation. Results showed a large variability in performance both across teams and across tasks, with promising results notably for Task 1 - EPVS and Task 2 - Microbleeds and not practically useful results yet for Task 3 - Lacunes. It also highlighted the performance inconsistency across cases that may deter use at an individual level, while still proving useful at a population level.


Generating Pixel Art Character Sprites using GANs

arXiv.org Artificial Intelligence

Iterating on creating pixel art character sprite sheets is essential to the game development process. However, it can take a lot of effort until the final versions containing different poses and animation clips are achieved. This paper investigates using conditional generative adversarial networks to aid the designers in creating such sprite sheets. We propose an architecture based on Pix2Pix to generate images of characters facing a target side (e.g., right) given sprites of them in a source pose (e.g., front). Experiments with small pixel art datasets yielded promising results, resulting in models with varying degrees of generalization, sometimes capable of generating images very close to the ground truth. We analyze the results through visual inspection and quantitatively with FID.


Remote Computer Vision Engineer openings in California on August 14, 2022 โ€“ Data Science Jobs

#artificialintelligence

Role requiring'No experience data provided' months of experience in None Samsara (NYSE: IOT) is the pioneer of the Connected Operations Cloud, which allows businesses that depend on physical operations to harness IoT (Internet of Things) data to develop actionable business insights and improve their operations. Founded in San Francisco in 2015, we now employ more than 1,800 people globally and have over 1.5 million active devices. Samsara also went public in December 2021 and we're just getting started. Recent awards we've won include: โ€ข #2 in the Financial Times' Fastest Growing Companies in Americas list 2021 โ€ข Named as a Best Place to Work in Built In 2022 โ€ข #19 in the Forbes Cloud 100 2021 โ€ข IoT Analytics Company of the Year in 2022's IoT Breakthrough Winners โ€ข Forbes Advisor named us the Best Solution for Large Companies โ€“ Fleet management software for 2022! We're driving change in industries that are yet to fully embrace digital transformation. Physical operations make up a massive slice of the global economy but haven't benefited from innovation and actionable information in the way that other sectors have.


Levita Magnetics raises $26M for Magnetic-Assisted Robotic Surgery platform - The Robot Report

#artificialintelligence

Levita Magnetics said it has raised $26 million to fund regulatory and commercial progress on its Magnetic-Assisted Robotic Surgery (MARS) platform. The Menlo Park, California-based robotic surgery system developer also appointed Maria Sainz as chair of its board of directors. The MARS platform is designed to help surgeons perform more high-volume abdominal procedures using fewer incisions and less personnel. Levita won FDA de novo classification for its Levita Magnetic Surgical System in 2015. That handheld device uses a magnet placed outside of a patient's abdomen to control a magnetic grasper inside the body during surgery, requiring only one incision instead of two.


Fulltime SAP openings in Los Angeles on August 14, 2022

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Role requiring'No experience data provided' months of experience in Los Angeles Accentures SAP practice in the West, and we bring the New to life using design thinking, agile development methodologies, and the latest smart tech for SAP when it comes to automation and AI. We help out clients apply intelligence to set their business apart and make them more proactive, predictive and productive the power of the intelligent enterprise. We have also announced our partnership with SAP to develop SAPs new Responsible Production and Design solution, which will help companies consume fewer resources and build sustainability into their design processes. We believe sustainability is going to be the next digital, says Julie Sweet. Im hopeful that by 2025, well be able to say every business is a sustainable business.


The Best Way to Make AI-Generated Digital Art for Free

#artificialintelligence

The internet is collectively obsessed with art-generating AIs lately, and one of the newest tools is Midjourney. And while the full version requires a monthly subscription, Midjourney is free to use for up to 25 images, and you can browse and download images made by other users even if you never sign up for a paid account. Midjourney's images are impressive compared to other art-generating apps out there, with results that almost look like they were made by human artists. And I am really emphasizing the "almost" in that sentence. This is a machine mashing together works from real human painters, illustrators, and digital artists (none of whom are compensated for their work being used in this way, by the way).