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Discrete-time rewards efficiently guide the extraction of continuous-time optimal control policy from system dataThe concept of reward is central in reinforcement learning and is also widely used in the natural sciences, engineering, and social sciences. Organisms learn behavior by interacting with their environment and observing the resulting rewarding stimuli. The expression of rewards largely represents the perception of the system and defines the... Read more
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Advances in AI technology for improved object detection and classificationThe core technology of artificial intelligence (AI) lies in its ability to retain existing knowledge while learning new information. This capability is crucial for AI systems to function effectively in various applications, much like the human ability to recall past experiences while acquiring new ones.... Read more
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Q&A: What makes people trust ChatGPT?A real human wrote this article, albeit with the help of transcription software. ChatGPT, or another large language model, probably would have composed it much more quickly, but artificial intelligence (AI) systems are susceptible to hallucinating—generating incorrect information—so could you trust the results?... Read more
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Is ChatGPT the key to stopping deepfakes? Study asks LLMs to spot AI-generated imagesWhen most people think of artificial intelligence, they're probably thinking of—and worrying about—ChatGPT and deepfakes. AI-generated text and images dominate our social media feeds and the other websites we visit, sometimes without us knowing it, and are often used to spread unreliable and misleading information.... Read more
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New tool detects AI-generated videos with 93.7% accuracyEarlier this year, an employee at a multinational corporation sent fraudsters $25 million. The instructions to transfer the money came—the employee thought—straight from the company's CFO. In reality, the criminals had used an AI program to generate realistic videos of the CFO and several other colleagues in an elaborate scheme.... Read more
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AI generated exam answers go undetected in real-world blind testExperienced exam markers may struggle to spot answers generated by Artificial Intelligence (AI), researchers have found.... Read more
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Convolutional optical neural networks herald a new era for AI imagingConvolutional neural networks (CNNs), with their exceptional image recognition capabilities, have performed outstandingly in the field of AI and notably within platforms like ChatGPT. Recently, a team of Chinese researchers from University of Shanghai for Science and Technology have successfully introduced the concept of CNNs into the field of optics... Read more
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New AI framework enhances emotion analysisSocial media enthusiasts tend to spice up their text posts with emojis, images, audio, or video to attract more attention. Simple as it is, this technique makes scientific sense: multimodal information is found to be more effective in conveying emotions, as different modalities interact and enhance one another.... Read more
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How should AI depict marginalized communities? Technologists look to a more inclusive futureAs artificial intelligence becomes more sophisticated and more capable of closely depicting reality, researchers at Carnegie Mellon University's Human-Computer Interaction Institute (HCII) are working to ensure that the outputs of large language models are representative of the communities they reference.... Read more
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Sony introduces AI for single-instrument accompaniment generation in music productionIn recent decades, many engineers have started developing artificial intelligence (AI)-based tools that can support the work of creative professionals, speeding up or enhancing the production of different types of content. These include computational models that can generate musical tracks and facilitate some aspects of music production.... Read more
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Novel network proposed to improve underwater image qualityResearchers led by Prof. Wang Rujing and Wang Liusan from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences have established a learnable full-frequency transformer dual generative adversarial network (LFT-DGAN) to address the problem of underwater image quality degradation caused by various interferences.... Read more
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Effectiveness of large language models in political microtargeting assessed in new studyRecent advancements in large language models (LLMs) have raised the prospect of scalable, automated, and fine-grained political microtargeting on a scale previously unseen. For example, when integrated with existing databases of personal data, LLMs could tailor messages to appeal to the vulnerabilities and values of specific individuals, such that a... Read more
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Researchers propose the next platform for brain-inspired computingComputers have come so far in terms of their power and potential, rivaling and even eclipsing human brains in their ability to store and crunch data, make predictions and communicate. But there is one domain where human brains continue to dominate: energy efficiency.... Read more
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Researchers develop new training technique that aims to make AI systems less socially biasedAn Oregon State University doctoral student and researchers at Adobe have created a new, cost-effective training technique for artificial intelligence systems that aims to make them less socially biased.... Read more
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AI image-generator startup Stability AI looks for reshoot with new CEO and investor groupThe troubled artificial intelligence company behind image-generator Stable Diffusion is looking for a reshoot with a new CEO and a surge of investment from a group that includes Sean Parker, Facebook's former president and Napster's co-founder.... Read more