Energy
Energy consumption of AI poses environmental problems
Take some of the most popular language models, for example. OpenAI trained its GPT-3 model on 45 terabytes of data. To train the final version of MegatronLM, a language model similar to but smaller than GPT-3, Nvidia ran 512 V100 GPUs over nine days. A single V100 GPU can consume between 250 and 300 watts. If we assume 250 watts, then 512 V100 GPUS consumes 128,000 watts, or 128 kilowatts (kW).
Cruise Looks to Solar Panels to Power Self-Driving Cars
Cruise, the San Francisco autonomous car company backed by General Motors, is launching a new initiative to support renewable energy efforts in California's Central Valley. Through a program called Farm to Fleet, Cruise will source solar power for its all-electric fleet from two farms: Sundale Vineyards outside Tulare and Moonlight Companies in Reedley. Sundale Vineyards grows table grapes, and Moonlight is a citrus and stone fruit grower. Both of them also have solar panel installations -- and they'll now support Cruise as it tries to expand the number of electric cars on the road in California. Cruise, the San Francisco autonomous car company owned by General Motors, is paying to source solar power for its all-electric fleet from two farms: Sundale Vineyards outside Tulare and Moonlight Companies in Reedley (Fresno County).
Federated Reinforcement Learning: Techniques, Applications, and Open Challenges
Qi, Jiaju, Zhou, Qihao, Lei, Lei, Zheng, Kan
This paper presents a comprehensive survey of Federated Reinforcement Learning (FRL), an emerging and promising field in Reinforcement Learning (RL). Starting with a tutorial of Federated Learning (FL) and RL, we then focus on the introduction of FRL as a new method with great potential by leveraging the basic idea of FL to improve the performance of RL while preserving data-privacy. According to the distribution characteristics of the agents in the framework, FRL algorithms can be divided into two categories, i.e. Horizontal Federated Reinforcement Learning (HFRL) and Vertical Federated Reinforcement Learning (VFRL). We provide the detailed definitions of each category by formulas, investigate the evolution of FRL from a technical perspective, and highlight its advantages over previous RL algorithms. In addition, the existing works on FRL are summarized by application fields, including edge computing, communication, control optimization, and attack detection. Finally, we describe and discuss several key research directions that are crucial to solving the open problems within FRL.
Robust Model-based Reinforcement Learning for Autonomous Greenhouse Control
Zhang, Wanpeng, Cao, Xiaoyan, Yao, Yao, An, Zhicheng, Luo, Dijun, Xiao, Xi
Due to the high efficiency and less weather dependency, autonomous greenhouses provide an ideal solution to meet the increasing demand for fresh food. However, managers are faced with some challenges in finding appropriate control strategies for crop growth, since the decision space of the greenhouse control problem is an astronomical number. Therefore, an intelligent closed-loop control framework is highly desired to generate an automatic control policy. As a powerful tool for optimal control, reinforcement learning (RL) algorithms can surpass human beings' decision-making and can also be seamlessly integrated into the closed-loop control framework. However, in complex real-world scenarios such as agricultural automation control, where the interaction with the environment is time-consuming and expensive, the application of RL algorithms encounters two main challenges, i.e., sample efficiency and safety. Although model-based RL methods can greatly mitigate the efficiency problem of greenhouse control, the safety problem has not got too much attention. In this paper, we present a model-based robust RL framework for autonomous greenhouse control to meet the sample efficiency and safety challenges. Specifically, our framework introduces an ensemble of environment models to work as a simulator and assist in policy optimization, thereby addressing the low sample efficiency problem. As for the safety concern, we propose a sample dropout module to focus more on worst-case samples, which can help improve the adaptability of the greenhouse planting policy in extreme cases. Experimental results demonstrate that our approach can learn a more effective greenhouse planting policy with better robustness than existing methods.
UK to Leverage Cloud-Predicting AI to Anticipate Solar Energy Supply
In general, solar energy is less intermittent than wind, owing to the predictability of daytime, nighttime, solar intensity and the angle of the sun relative to a location throughout the day. Clouds, however, throw a wrench into the works, chaotically disrupting the supply of solar energy to solar panels with little warning (large-scale climate and weather forecasting models are, broadly speaking, unable to resolve at the level of individual clouds). Complicating matters, energy operators, while aware of large-scale solar facilities, are often unaware of the exact geographic siting of solar panels on households or businesses. The combination of difficult-to-predict clouds and missing location information for many solar panels means that the operators don't know when clouds are covering those solar panels โ and, as a result of that uncertainty, the grid requires a larger buffer of other energy sources to account for the difference.
New AI system predicts building energy rates in less than a second
Computer scientists at Loughborough University have teamed up with multi-disciplinary engineering consultancy, Cundall, to create an artificial intelligence system that can predict building emissions rates (BER) โ an important value used to calculate building energy performance โ of non-domestic buildings. Current methods can take hours to days to produce BERs and are generated by manually inputting hundreds of variables. Dr Georgina Cosma and postgraduate student Kareem Ahmed, of the School of Science, have designed and trained an AI model to predict BER values with 27 inputs with little loss in accuracy. Better yet, the proposed AI model โ which was created with the support of Cundall's Head of Research and Innovation, Edwin Wealend, and trained using large-scale data obtained from UK government energy performance assessments โ can generate a BER value almost instantly. Dr Cosma says the research "is an important first step towards the use of machine learning tools for energy prediction in the UK" and it shows how data can "improve current processes in the construction industry".
Understanding The Macroscope Initiative And GeoML
How is it possible to harness high volumes of data on a planetary scale to discover spatial and temporal patterns that escape human perception? The convergence of technologies such as LIDAR and machine learning is allowing for the creation of macroscopes, which have many applications in monitoring and risk analysis for enterprises and governments. Microscopes have been around for centuries, and they are tools that allow individuals to visualize and research phenomena that are too small to be perceived by the human eye. Macroscopes can be thought of as carrying out the opposite function; they are systems that are designed to uncover spatial and temporal patterns that are too large or slow to be perceived by humans. In order to function, they require both the ability to gather planetary-scale information over specified periods of time, as well as the compute technologies that can deal with such data and provide interactive visualization.
Nest Cam review: A great security cam, indoors or out
With this completely new and battery-powered iteration of the Nest Cam, Google's smart home division continues to raise the bar when it comes to security cameras, setting a standard for usability (especially during setup) that most other device manufacturers can only dream of. From a hardware perspective, the Nest Cam is a radical refresh of the old teardrop-shaped Nest Cam Indoor, designed with a tough, plastic, cup-shaped housing that adheres magnetically to its surface-mountable base (it looks very similar to the now-discontinued Nest Cam IQ). It's reasonably weather resistant, carrying an IP54 rating (meaning its enclosure will keep out enough dust to prevent failure and that it's protected from water sprayed from a pressure washer at a reasonable distance), so it can be used indoors or outdoors. The 2021 version of the Nest Cam carries an IP rating of 54, meaning its enclosure will keep out enough dust to prevent failure and that it's protected from water sprayed from a pressure washer at a reasonable distance. The new Nest Cam can run on battery power, and Google says it should deliver between 1.5 and seven months of run time before it needs to be recharged, depending on usage.
Nest Doorbell review: Google's porch sentinel shines
It's been three years since Google launched the Nest Hello, a wired video doorbell with facial recognition that helped set the standard for smart doorbells. In that time, many competitors have appeared, but few have come close to the quality and reliability of that device. The Nest Doorbell (battery) is a Google-made video doorbell that can run on battery power (it can also operate on wired power, if you have that infrastructure and wish to connect it to your existing doorbell chime). In our tests the device performed excellently, didn't give any problems, and proved itself to be a worthy sister device to the original Nest Hello. A large, round black circle with a camera in its center is at the top of the new Nest doorbell. A small LED below that indicates when the camera is recording or processing video.
Top 10 Green Robots in the Market Everyone Should Know
Innovation is advancing enormously in the field of robotics. Soon they might accept jobs in a wide range of ventures. As robotic technology have a bigger influence across the world, it becomes important to think about its impact on the environment. In that case, the best option people have is Green robots, which are used to help preserve the environment by fighting wildfires, managing waste, and cleaning water bodies. Holes in water pipes cause a lot of drinkable water to be squandered. Nonstop work is difficult to follow and would cost a lot of money in labor.