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国际观察|对AI,世界顶尖科学家怎么看
Xin Hua She· 2026-02-04 08:03
Core Viewpoint - The World Summit of Top Scientists highlighted that AI is a powerful tool that enhances human capabilities in scientific research and economic structures, rather than replacing humans. Governance rules regarding safety and ethics are essential for its healthy development [1][3]. Group 1: AI in Scientific Research - AI has become an indispensable assistant for scientists, with significant involvement in research activities, as noted by Nobel laureate Michael Levitt, who stated that AI now participates in about 90% of his research work [1][2]. - AI accelerates the trial-and-error process in scientific research, reducing costs and time, exemplified by the AI tool "AlphaFold," which can determine protein structures in minutes instead of years [2]. - The integration of AI across disciplines is fostering collaboration in fields such as biology, physics, and chemistry, enhancing the potential for innovative research outcomes [2]. Group 2: Economic Impact of AI - Concerns about AI leading to job losses are addressed by economist Christopher Pissarides, who argues that AI will change work methods rather than eliminate jobs, potentially leading to new industries and roles [3]. - Historical patterns suggest that technological advancements, including AI, typically result in structural adjustments within companies rather than widespread unemployment, as employees can leverage AI to improve productivity [3]. Group 3: Governance and Ethical Considerations - The potential risks associated with AI necessitate proper governance, with scientists emphasizing the importance of ethical standards and safety mechanisms to ensure long-term development [4]. - AI's capabilities pose challenges to social governance and ethical frameworks, as highlighted by experts who warn of the risks associated with granting AI higher levels of decision-making autonomy [4]. - There is a call for increased investment in technology innovation and for companies and employees to adapt to new working methods to fully harness AI's potential [4].
深度学习模型可预测细胞每分钟发育变化 为构建“数字胚胎”奠定基础
Ke Ji Ri Bao· 2025-12-26 00:37
Core Insights - A collaborative team from MIT, the University of Michigan, and Northeastern University has introduced a geometric deep learning model named "MultiCell," which predicts cellular behavior during fruit fly embryonic development at single-cell resolution [1][2] - The model utilizes four-dimensional whole-embryo data with sub-micron resolution and high frame rates, containing approximately 5,000 labeled cell boundaries and nuclei [1] - "MultiCell" is the first algorithm capable of predicting various cellular behaviors with single-cell precision during multicellular self-assembly, showing potential for early diagnosis and drug screening [2] Group 1 - The "MultiCell" model can predict the behavior changes of each cell every minute during the embryonic development process [1] - The model achieved about 90% accuracy in predicting cell connection loss and demonstrated high accuracy in predicting cell invagination, division, or rearrangement behaviors [2] - The method is compared to AlphaFold, which predicts protein structures from amino acid sequences, highlighting the complexity of embryonic development compared to protein folding [1] Group 2 - The model was trained on three embryonic videos and then applied to predict the evolution of a fourth new embryo [2] - Future enhancements may include integrating gene expression and protein localization data to provide a more comprehensive understanding of the interaction between physical and biological information [2] - The development of a universal multicellular developmental prediction model could lead to the creation of "digital embryos" for drug screening and guiding artificial tissue design [1]