Brief

快手计划将其AI部门可灵（Kling）分拆出来，并寻求20亿美元的融资。此举表明了公司对AI业务的重视以及对独立发展的期望。此前，快手已在AI领域进行了大量投入，但面临预算快速消耗的挑战。 AI

Researchers have introduced MulTaBench, a new benchmark designed to evaluate multimodal tabular learning. This benchmark comprises 40 datasets that combine tabular data with either text or images, focusing on tasks where these modalities offer complementary predictive signals. The goal is to encourage the development of foundation models that can effectively integrate and leverage diverse data types for improved performance. AI

Researchers have identified joint sparse coding and temporal dynamics as key mechanisms for how the brain reconfigures neural representations to adapt to new contexts without losing prior knowledge. This balance is crucial for lifelong learning in dynamic environments and has implications for artificial intelligence systems struggling with catastrophic forgetting. The study found that sparsity in representations reduces interference between contexts, while temporal dynamics enhance context separation over time, leading to more stable adaptation. AI

NVision, a startup specializing in cancer imaging, has secured $38 million in funding led by Abbott, with an additional $17 million venture loan. The company utilizes quantum technology to enhance MRI scans, allowing for real-time monitoring of a tumor's metabolic response to treatment. This innovation aims to provide faster feedback on therapy effectiveness, potentially changing treatment timelines from months to days. NVision plans to expand its metabolic imaging system to 20 centers globally and is preparing for human clinical studies in 2027. AI

Two new benchmarks, MMCL-Bench and Personal-VCL-Bench, have been introduced to evaluate the multimodal context learning capabilities of large language models. MMCL-Bench focuses on learning from visual rules, procedures, and evidence, while Personal-VCL-Bench assesses the ability of models to utilize user-specific visual context for personalized queries. Both benchmarks reveal significant limitations in current frontier multimodal models, indicating a substantial gap in their ability to effectively extract, reason over, and apply visual information. AI

A massive data center, projected to be twice the size of Manhattan, is planned for Utah. This facility will be powered by liquefied natural gas (LNG), a decision that has drawn criticism regarding its environmental impact and emissions. The project is moving forward despite concerns about its energy source and scale. AI

The upcoming meeting between U.S. President Donald Trump and Chinese President Xi Jinping in Beijing is expected to address critical technology issues, including the intense rivalry in artificial intelligence and the trade of advanced AI chips. Both nations are considering dialogues on AI safety, while simultaneously competing in AI development and facing accusations of illicit distillation techniques. The discussions will also cover supply chain security, electric vehicle trade, and the global market for rare earth minerals, with significant implications for companies like Nvidia and Chinese AI labs such as DeepSeek. AI

The Trump administration's efforts to establish federal AI regulation are stalled due to internal disagreements and a tight schedule. Officials are reportedly spooked by advanced AI models like Anthropic's Mythos, but a lack of consensus is delaying any concrete actions. The administration's approach to AI safety testing and potential regulatory frameworks remains unclear, with some officials suggesting a cautious, wait-and-see approach influenced by upcoming international summits. AI

Researchers have developed a new topological method for analyzing dynamic Bayesian networks (DBNs). This approach associates a time-varying graph with each DBN, highlighting strong dependencies between variables. By applying persistent homology, the method generates a barcode that tracks the evolution of these dependency structures over time, offering a stable and noise-resistant summary. AI

Researchers have developed CausalGS, a new framework capable of learning the physical causality of 3D dynamic scenes directly from multi-view videos. This approach avoids the need for explicit physical priors or high-quality geometry reconstruction, instead inferring initial velocities and intrinsic material properties. The system then uses this inferred information within a differentiable physics simulator to achieve state-of-the-art performance in long-term future frame extrapolation and novel view interpolation. AI

Researchers have developed a novel method for training physics-informed neural networks (PINNs) by formulating the update-direction selection as a Chebyshev-center problem. This approach aims to simplify the simultaneous optimization of multiple loss terms inherent in PINNs, which often complicates their training. The new method selects a normalized direction that maximizes the minimum distance to cone facets, offering a unified geometric principle that recovers desirable properties of existing techniques without explicit imposition. Experiments indicate strong empirical performance on PINN benchmarks. AI

Microsoft Research has unveiled GridSFM, a compact foundation model designed to optimize power grid efficiency. This model can predict optimal AC power flow in milliseconds, aiding operators in managing grid congestion, stability, and overall system health for cost savings. Separately, Andrew Ng refutes the notion of an imminent "jobpocalypse" due to AI, asserting that AI will transform rather than replace jobs, necessitating adaptation over excessive fear. AI

Researchers have introduced Consolidation-Expansion Operator Mechanics (OpMech), a new framework to precisely define adaptive learning systems. OpMech uses an 'order-gap' metric, computable from a system's trajectory, to signal how sensitive it is to the sequence of learning operations. This metric can be used as a real-time control signal to determine when a system has converged, offering provable guarantees in various learning settings. AI

The Connectivity Standards Alliance, overseeing smart home protocols like Matter, has partnered with the OpenADR Alliance, which manages energy management standards. This collaboration aims to integrate smart home devices with energy grids, allowing for more efficient energy use and cost savings for consumers. Matter will manage in-home device communication, while OpenADR will handle grid interactions, simplifying energy demand response programs for utility companies and manufacturers. AI

Researchers are exploring advanced techniques for interpreting the internal workings of complex AI models. One paper details the application of Sparse Autoencoders (SAEs) to Automatic Speech Recognition (ASR) systems like Whisper, revealing linguistic and non-linguistic features and demonstrating cross-lingual capabilities. Another study introduces Sparse Autoencoder Neural Operators (SAE-NOs), which represent concepts as functions rather than fixed-dimensional vectors, allowing for a more nuanced understanding of how and where concepts are expressed across input domains, particularly beneficial for data with spatial or frequency structures. AI

Researchers have developed new methods for Langevin dynamics, a technique used in generative AI models. One paper introduces Slowly Annealed Langevin Dynamics (SALD) and Velocity-Aware SALD (VA-SALD) for training-free guided generation with diffusion models, providing theoretical convergence guarantees. Another paper presents a way to use higher-order Langevin dynamics for faster and more efficient parallel sampling from complex distributions, reducing memory and gradient-evaluation costs for models like Bayesian logistic regression and two-layer neural networks. AI

Two new research papers explore the nuances of the Adam optimizer, a popular tool in deep learning. The first paper proposes a "refresh rule" for Adam's momentum parameter, suggesting it should scale with training data size to optimize performance and robustness across different scales. The second paper delves into how mini-batch noise, influenced by batch size and Adam's hyperparameters, affects the optimizer's implicit bias and generalization capabilities, particularly in multi-epoch training scenarios. AI

Researchers have developed a novel method for sensor design that synthesizes measurement likelihoods to meet specific accuracy bounds, even when sensor models are uncertain. This approach inverts the traditional design flow by starting with an error budget and then constructing the necessary likelihood function. The framework accommodates various discrepancy metrics and includes a two-layer architecture for integrating the synthesized likelihood into sensor placement and configuration. AI

As of April 30th, China has seen a 50% year-over-year increase in the number of registered private securities products, with over 5,400 products filed. This surge is largely driven by index-enhanced and multi-asset strategies, which have grown by over 80% and 66% respectively. Notably, a significant portion of these new filings, over 30%, comes from top-tier private fund managers, indicating a concentration of capital towards leading firms. AI

South Korean AI startup RLWRLD is developing a robotics foundation model by collecting data from skilled human workers across various industries. This initiative aims to train robots to perform complex physical tasks, mirroring human dexterity and expertise. The company is gathering data from hotel staff, logistics workers, and convenience store employees to build a comprehensive library of human skills for future industrial and domestic robots. This effort is part of South Korea's broader strategy to become a leader in physical AI, leveraging its manufacturing strengths. AI

New Brunswick's premier is considering a ban on social media for young people and a review of AI chatbots in the anglophone sector's draft curriculum. These proposals stem from concerns about the impact of social media and AI on youth. The province is exploring these measures to address potential risks associated with these technologies. AI

Robotics company Robotechs Intelligent Technology Co., Ltd. has submitted a listing application to the Hong Kong Stock Exchange, with Huatai International, Citi, and Orient Securities International serving as joint sponsors. In other news, the German automotive industry may lose 125,000 jobs by 2035 due to industry transformation and a deteriorating business environment. Additionally, the fuel surcharge for domestic flights in China is set to increase again. AI

Chinese courts have ruled that companies cannot terminate employees solely for the purpose of replacing them with artificial intelligence. This decision aims to protect workers from being displaced by automation without due process. The ruling addresses concerns about the ethical implications of AI in the workplace and its potential impact on employment. AI

中微公司 has successfully acquired a controlling stake in 杭州众硅, a move that has received official registration approval from the China Securities Regulatory Commission. This transaction marks the first instance on the Shanghai STAR Market to utilize simplified review procedures for mergers and acquisitions, signaling a significant development in the market. The acquisition is now poised to move into its implementation phase. AI

Researchers at Sorbonne University in Paris have co-written a new play in the style of 17th-century French playwright Molière using an AI tool named Le Chat. The experimental comedy, titled L’Astrologue ou les Faux Présages, debuted at the Château de Versailles after a two-and-a-half-year development process involving extensive 'intellectual ping pong' between human experts and the AI. While the AI contributed to dialogue, music, costumes, and scenery, the researchers emphasized it was a collaborative effort, not a play written solely by AI, aiming to balance human creativity with technological capabilities. AI

Anil Kochhar, a commencement speaker at North Carolina State University's Wilson College of Textiles, surprised graduates by announcing he would pay off their final-year student loans. This philanthropic act aims to alleviate the significant debt burden faced by many graduates, with the average student debt in the U.S. exceeding $39,000. The university is working with Kochhar to implement the plan, which is intended to enable graduates to pursue their careers with reduced financial pressure. AI

The ChiNext index surged past 4000 points, reaching a decade high and nearing its 2015 peak. In related business news, AMEC acquired a controlling stake in Hangzhou Zhonggui, a transaction approved by the China Securities Regulatory Commission. Additionally, a separate report mentions "Qwen" (a Chinese AI model) increasing its capabilities for "Doubao" (likely a related product or service). AI

The United States will send a delegation to the Asia-Pacific Economic Cooperation (APEC) meetings in China this month, with participation spanning May 11-24. Key US officials, including Deputy Assistant Secretary of State for Cyberspace and Digital Policy John Mills and Deputy US Trade Representative Rick Switzer, will lead discussions on trade, digitalization, and other economic policies. This engagement occurs shortly after President Trump's departure for Beijing for a significant summit. AI

MIT Open Learning has launched a new program called Universal AI, designed to make AI fluency accessible to everyone. This initiative features AI-powered personalization and offers a free introductory course. Additionally, Databricks has announced its Student Fellows program, aimed at nurturing future leaders in data and AI. AI

Hongde Co., Ltd. plans to raise up to 560 million yuan through a private placement of A shares. The funds will be invested in intelligent manufacturing for key aluminum alloy components in high-end equipment and to supplement working capital. Separately, Kuaishou plans to spin off its AI subsidiary Keling AI and is seeking $2 billion in funding. AI

Siemens is reportedly exploring the acquisition of Mer Mec, an Italian manufacturer specializing in railway signaling and communication equipment. Separately, the announcement of a stock price anomaly by Mona Lisa Group clarified that its core business remains architectural ceramics, with no significant revenue or profit generated from semiconductor materials. Additionally, Kuaishou plans to spin off its AI company, Keling AI, and is seeking $2 billion in funding. AI

In April, China's securities market saw 149,900 new margin trading accounts, a 12.44% decrease from the previous month but a 41.54% increase year-over-year. Tencent Music reported its first-quarter financial results, with total revenue reaching 7.9 billion yuan, a 7.3% increase year-over-year, and adjusted net profit at 2.33 billion yuan, up 4.8%. Additionally, Kuaishou is reportedly planning to spin off its AI company, Keling AI, and raise $2 billion. AI

Douyin Group's short drama copyright center is launching initiatives to support real-person short dramas, including a budget exceeding 1.5 billion yuan by 2026. Separately, Kuaishou plans to spin off its AI company, Keling AI, and is seeking $2 billion in funding. The cluster also mentions former US President Trump's anticipation for a trip to China and OPPO's accountability notice regarding a Mother's Day campaign. AI

Researchers have developed new methods for Fitted Q-Evaluation (FQE) and soft Fitted Q-Iteration (soft FQI) that do not require Bellman completeness, a condition often unmet with function approximation. The proposed techniques, stationary-weighted FQE and stationary-reweighted soft FQI, address instability issues by reweighting regression steps to align with the target policy's stationary distribution. These approaches aim to improve stability and reduce value error in off-policy evaluation for reinforcement learning. AI

The US Senate has issued a warning regarding China's rapidly expanding nuclear capabilities, citing the construction of hundreds of new missile silos and advancements in mobile missile forces and long-range bombers. This warning comes just hours before a summit between Chinese President Xi Jinping and US President Donald Trump. The Senate hearing focused on the Department of Energy and National Nuclear Security Administration's atomic energy defense activities. AI

The FCC has approved a deal allowing AT&T and Starlink to acquire spectrum licenses from EchoStar. This decision has drawn criticism from smaller carriers, who argue it unfairly benefits larger companies. The approval follows pressure from the FCC chair on EchoStar to divest these assets. AI

American drug overdose deaths have decreased for the third consecutive year, reaching levels not seen since 2019. Preliminary data indicates a 14% drop last year, with declines observed across various substances like fentanyl and methamphetamine. While this trend offers cautious optimism, researchers warn that continued vigilance is crucial, as a rapid increase in deaths could occur if preventative measures are relaxed. The evolving drug supply, with new potent substances like cychlorphine emerging, presents ongoing challenges. AI

Pentagon chief Pete Hegseth accompanied Donald Trump on a state visit to China, marking a significant step in strengthening military communications between the two nations. The visit aims to de-escalate tensions and avoid potential crises. Discussions are expected to cover sensitive topics such as US arms sales to Taiwan and nuclear weapons, with the potential for separate talks between Hegseth and Chinese Defence Minister Dong Jun. AI

The European Union will not implement a bloc-wide ban on LGBTQ+ conversion therapy practices. Instead, the EU executive plans to issue a recommendation next year urging its 27 member states to enact their own national bans. This decision comes after a petition with over a million signatures called for a union-wide prohibition, but the EU stated such practices have no place within its borders. AI

Taiwan conducted a live-fire military exercise on the island of Kinmen, simulating a defense against a mainland Chinese amphibious assault. The drill involved deploying artillery, tanks, and anti-tank missiles, including US-made Javelins, to bolster asymmetric warfare capabilities. This exercise occurs amidst heightened tensions and anxiety in Taiwan regarding potential geopolitical bargaining chips as former US President Trump heads to Beijing. AI

Over 600 new international brands are participating in Tmall's 618 shopping festival, with a focus on niche markets and precise consumer needs. These brands, originating from 29 countries, are moving away from broad market strategies to target specific pain points, particularly in the pet care and beauty sectors. This trend is exemplified by brands like BROWN'S, offering specialized nutrition for small pets, and AHRES, a niche beauty brand focusing on skin health and sensory experience, both seeing significant sales growth. AI

Lee Jae Myung, the president of Korea, has proposed a novel idea to distribute AI-generated revenue among citizens. This initiative aims to foster a more equitable distribution of wealth and establish a transparent tax management system for societal well-being. AI

Researchers have demonstrated that AI can be used to eavesdrop on conversations through fiber optic cables, highlighting a new physical security threat. Separately, AI has enabled the observation of lifeforms composed of fewer than 20 amino acids, opening new avenues in biomolecular design and evolutionary studies. Additionally, QuiverAI has launched a tool that transforms prompts and images into structured, editable vector graphics, streamlining design and content creation workflows. AI

xAI has reportedly installed 19 additional natural gas turbines at its Mississippi data center campus, bringing the total to 46. This expansion occurs while xAI is involved in a lawsuit with the NAACP and environmental groups over alleged violations of the Clean Air Act due to operating turbines without proper permits. The company claims the temporary turbines are equipped with emission control technology, but regulators are still evaluating the situation amidst community opposition and concerns about air quality. AI

The Department of Homeland Security (DHS) is requesting $7.5 million to develop its own facial recognition-enabled smart glasses for Immigration and Customs Enforcement (ICE) agents. These glasses would allow agents to identify individuals in real-time using biometric data, supplementing existing tools like the Mobile Fortify app. While DHS claims no federal funds are currently committed to smart glasses, agents have already been observed using off-the-shelf smart glasses, such as Meta's Ray-Ban models, for surveillance during operations, raising privacy concerns and potential regulatory violations. AI

FDA Commissioner Dr. Marty Makary is resigning after a turbulent 13-month tenure marked by significant organizational upheaval and controversies. His leadership faced criticism from various groups, including health industry executives, anti-abortion activists, and vaping companies, over decisions on drug approvals, abortion pills, and vaccines. Makary's efforts to streamline FDA processes, such as incorporating AI into evaluations and expediting reviews for certain medicines, were overshadowed by internal conflicts and staff departures. AI

Kuaishou plans to spin off its AI subsidiary, Keling AI, and is seeking to raise $2 billion for the venture. This move follows a trend of major tech companies encouraging their programmers to focus on AI development, with some reportedly exhausting their annual budgets within four months. Meanwhile, ST Kaixin has had its delisting risk warning removed by the Shenzhen Stock Exchange and will resume trading under a new name. AI

Kuaishou plans to spin off its AI subsidiary, Keling AI, and is seeking to raise $2 billion for the venture. Separately, a CTO expressed confusion as major tech companies are pushing programmers to focus on AI, leading to rapid budget depletion within four months. The article also notes that controlling shareholders of Changjiang Materials and Pioneer Electronics intend to reduce their stakes in their respective companies. AI

Kuaishou plans to spin off its AI subsidiary, KeLing AI, and is seeking $2 billion in funding for the new venture. Separately, a CTO expressed surprise as a major tech company's AI budget was depleted in just four months due to intense internal competition among programmers. The newsflash also noted a 3% drop in spot silver prices and a proposed share buyback by ST Wenfeng. AI

The 2026 AI Partner·Beijing Yizhuang AI+ Industry Conference, scheduled for May 19-20, 2026, will focus on practical AI implementation rather than theoretical capabilities. The event aims to bridge the gap between AI technology and industry needs, showcasing real-world applications and solutions. It will feature discussions on AI's role in driving productivity, practical case studies, and talent strategies for integrating AI into the workforce. AI