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Cell Res:左二伟团队开发AI模型——AlphaCD,高精度表征胞嘧啶脱氨酶
生物世界· 2025-08-18 08:30
Core Viewpoint - The rapid development of genomics presents unprecedented opportunities and challenges for characterizing protein functions, highlighting the limitations of traditional biochemical methods and the need for high-precision, quantitative approaches [3][4]. Group 1: Research Development - A machine learning model named AlphaCD was developed to accurately characterize 21,335 cytidine deaminases (CD), demonstrating high precision in predicting catalytic efficiency, off-target activity, target site window, and catalytic motifs [4][6]. - The research team experimentally characterized 1,100 APOBEC-like family cytidine deaminases fused with nCas9 in HEK293T cells, generating the largest dataset of experimental functional data for a single protein family to date [6][8]. Group 2: Model Performance - AlphaCD achieved high precision in predicting catalytic efficiency (0.92), off-target activity (0.84), target site window (0.73), and catalytic motifs (0.78) [6]. - The model was validated by subsampling 28 cytidine deaminases from the Uniprot database, with prediction accuracies of 0.84, 0.87, 0.75, and 0.73 for the respective features [6][8]. Group 3: Practical Application - The research team optimized the off-target site of one cytidine deaminase (A0A2R2Z4E4) using alanine scanning mutagenesis, creating a variant (A0A2R2Z4E4 E100A) that serves as a highly accurate and efficient cytidine base editor [8]. - This case exemplifies the application value of AlphaCD in high-precision, high-throughput protein function characterization and provides a paradigm for accelerating functional analysis of other proteins [8].
中国AI公有云服务市场规模同比高增!科创人工智能ETF华夏(589010)涨势如潮,盘中放出超5%大阳线!
Mei Ri Jing Ji Xin Wen· 2025-08-18 06:31
今日截至13点31,AI产业链全线爆发,通信、计算机、电子等行业领涨市场。科创人工智能ETF华 夏(589010)爆涨4.68%,盘中最大涨幅一度达5.61%。持仓股方面,九成成分股飘红,凌云光大涨 12.50%,恒玄科技大涨10.88%,亚信安全、虹软科技等跟涨。流动性方面,盘中换手超24%,成交金额 达1880万元,市场交投火爆,量能释放充沛。 消息方面,IDC报告显示,2024年中国AI公有云服务市场规模达195.9亿元人民币,相比2023年增 长55.3%。百度智能云、阿里云位居市场并列第一,其次是腾讯云和华为云。增长驱动力一方面来源于 生成式AI应用的扩展,另一方面也来源于机器学习训推需求的明显增长,带动了平台层以及应用层的 AI市场增长。 国金证券表示,看好AI-PCB及算力硬件、苹果链、AI驱动及自主可控受益产业链。随着英伟达 GB200及ASIC的放量,AI服务器及交换机大量转向采用M8材料,由于海外AI覆铜板扩产缓慢,覆铜板 龙头厂商有望积极受益,看好核心受益公司。建议重点关注算力核心受益硬件、AI-PCB产业链,苹果 链、AI驱动及自主可控受益产业链。 科创人工智能ETF华夏(589010 ...
市场分析师能力培训课程推荐:职场升级三步走
Sou Hu Cai Jing· 2025-08-15 11:40
Group 1 - The core competency of market analysts combines both hard and soft skills, enabling them to translate data into actionable business insights [1] - The growth trajectory for market analysts is divided into three phases: foundational (0-1 years), breakthrough (2-3 years), and leap (5+ years), each with specific skill development tasks [1] - In the foundational phase, analysts should focus on mastering Excel for data visualization and identifying anomalies in reports to enhance their visibility to management [1] - During the breakthrough phase, analysts are encouraged to utilize Python for automated reporting and explore user behavior correlations to suggest marketing strategies [1] - The leap phase emphasizes advanced techniques like machine learning for market penetration predictions and strategic thinking for customer lifecycle value analysis [1] Group 2 - The CDA certification is highlighted as a significant asset for career advancement in data analysis, offering three core advantages: knowledge input, practical validation, and certification endorsement [2] - Completing learning stages and obtaining CDA certification serves as a benchmark for skill assessment, enhancing the analyst's profile on platforms like LinkedIn [2] - The ability to present data-driven insights with certification backing can significantly increase an analyst's credibility in professional settings [2]
“寒王”归来!寒武纪20%涨停引爆AI芯片,半导体设备ETF(561980)放量大涨
Sou Hu Cai Jing· 2025-08-12 06:00
Group 1 - The core viewpoint of the news is the significant surge in artificial intelligence (AI) concept stocks, particularly in the semiconductor sector, driven by expectations surrounding the upcoming DeepSeek-R2 release [3] - Major stocks such as Cambricon and Shanghai Aojing experienced a 20% limit-up, while other companies like Zhongjuxin, Xinyuanwei, Haiguang Information, and SMIC also saw gains [1][3] - The semiconductor equipment ETF (561980) rose by 2.69%, with trading volume exceeding 75 million yuan, nearly doubling the previous day's total [1] Group 2 - The anticipated release window for DeepSeek-R2 is between August 15 and August 30, 2025, which has heightened market expectations following the release of ChatGPT-5 [3] - Cambricon's stock price reached a historical high, with a recent adjustment in its fundraising plan reducing the total amount from no more than 4.98 billion yuan to no more than 3.99 billion yuan [3] - Analysts believe that the long-term ceiling for AI chip industry market value is being raised due to improved model capabilities and a prosperous future application trend, with Cambricon's competitive edge in domestic AI chips remaining strong [3] Group 3 - Yole data indicates that AI is driving significant growth in the semiconductor value within data center servers, projected to reach approximately 500 billion dollars by 2030 [4] - The increase in semiconductor content in servers is primarily due to the rising demand for storage, processing, and interconnect silicon chips, largely driven by AI and machine learning [4] - CITIC Securities forecasts that the current semiconductor cycle is still in an upward phase, with AI continuing to be the main growth driver for the industry [4] Group 4 - Guosen Securities highlights a rebound in the semiconductor sector, driven by a threefold cyclical resonance leading to valuation expansion [5] - The North American computing power surge has become a major sentiment driver, particularly benefiting the switch and server industry chains due to changes in network architecture [5] - The semiconductor equipment ETF (561980) focuses on 40 companies in the semiconductor materials, equipment, and design sectors, with a high concentration in the upstream industry chain [5]
【环球财经】新研究利用机器学习估算全球冰川侵蚀速率
Xin Hua She· 2025-08-11 13:57
Core Insights - An international research team has developed a machine learning-based equation to quantify glacier erosion rates, estimating the erosion rates of over 180,000 glaciers globally [1][2] - The study indicates that 99% of glacier erosion rates fall between 0.02 mm and 2.68 mm per year, with the majority of modern glaciers' erosion rates estimated [1] - The research highlights that glacier movement speed is not the most critical factor in predicting erosion rates; a combination of glaciology, geomorphology, and geological factors provides a more accurate prediction [1][2] Group 1 - The study utilized machine learning to analyze the erosion rates of 181 modern glaciers, leading to the creation of equations applicable to various environmental types [1] - The research was published in the journal Nature Geoscience, indicating a significant advancement in understanding glacier dynamics [1] - The findings suggest that the conditions leading to glacier base erosion are more complex than previously thought, influenced by multiple variables [2] Group 2 - Key variables affecting erosion rates include temperature, water volume beneath glaciers, rock types in the area, and geothermal heat [2] - Understanding these factors is crucial for landscape management and monitoring global sediment and nutrient movement [2]
美光科技上涨6.48%,报126.59美元/股,总市值1416.70亿美元
Jin Rong Jie· 2025-08-11 13:48
Core Insights - Micron Technology (MU) opened with a 6.48% increase on August 11, reaching $126.59 per share, with a trading volume of $516 million and a total market capitalization of $141.67 billion [1] Financial Performance - As of May 29, 2025, Micron Technology is projected to have total revenues of $26.06 billion, representing a year-over-year growth of 50.12% [1] - The company is expected to report a net profit attributable to shareholders of $5.34 billion, showing a staggering year-over-year increase of 4997.25% [1] Company Overview - Micron Technology is a global leader in the semiconductor industry, known for its brands Micron, Crucial, and Ballistix, offering a wide range of high-performance memory and storage technologies, including DRAM, NAND, NOR Flash, and 3D XPoint memory [2] - The company has maintained a technological leadership for 40 years, with its memory and storage solutions driving disruptive trends in key market areas such as cloud data centers, networking, mobile, artificial intelligence, machine learning, and autonomous vehicles [2] - Micron's common stock (MU) is traded on the NASDAQ exchange [2]
新研究利用机器学习估算全球冰川侵蚀速率
Xin Hua She· 2025-08-11 10:19
研究还发现,冰川运动速度并不是预测冰川侵蚀速率的最重要指标,将冰川运动速度与更多冰川学、地 形气候学和地质因素结合考量,能够更准确地预测冰川侵蚀速率。 研究人员表示,导致冰川底部侵蚀的条件比先前认为的要复杂得多。分析发现,许多变量会显著影响侵 蚀速率,如温度、冰川下的水量、该地区的岩石类型以及来自地球内部的热量等,而了解这些影响因素 对于景观管理、全球沉积物和营养物质移动的监测等至关重要。(完) 冰川侵蚀是指冰川运动对地表土石体造成机械破坏作用的一系列现象,可塑造多种多样的冰蚀地貌类 型,但长期以来却因相关数据匮乏而难以精准建模。加拿大维多利亚大学、达尔豪西大学等机构的研究 人员近日在英国《自然-地球科学》杂志上发表论文说,他们借助机器学习技术,综合分析了全球范围 内181座现代冰川的侵蚀速率,构建出适用于不同环境类型的冰川侵蚀速率方程。 利用这些方程,研究人员估算了全球大约85%的现代冰川的侵蚀速率。估算显示,其中99%的冰川侵蚀 速率在每年0.02毫米至2.68毫米之间。 新华社北京8月11日电 冰川会通过侵蚀地表显著改变地貌,塑造出冰斗、角峰等不同地貌类型。冰川 塑造地貌的速度到底有多快?一个国际研究团 ...
官宣!2025 全球机器学习技术大会北京站首批嘉宾出炉,重磅来袭!
AI科技大本营· 2025-08-11 07:16
Core Viewpoint - The 2025 Global Machine Learning Technology Conference in Beijing is officially announced, following the successful Shanghai event, focusing on cutting-edge AI topics and featuring top scholars and industry practitioners [1][2]. Group 1: Conference Overview - The conference will take place on October 16-17, 2025, and is co-hosted by CSDN and Boolan, emphasizing high-quality discussions on AI evolution and industry applications [1]. - It aims to cover 12 key topics that address the most advanced and engineering challenges in AI, focusing on "technological explainability, engineering replicability, and scene applicability" [2][3]. Group 2: Core Topics - The 12 core topics include: - Evolution of large language model technology - Practical applications of large models - Software development transformation driven by large models - Frontiers of multimodal large models - Innovation and exploration of GenAI products - Infrastructure construction for large models - Engineering and architecture of large models - Technical analysis of DeepSeek and industry applications - AI agents - Embodied intelligence and smart hardware - Computing power infrastructure and performance optimization - Industry application practices of large models [4]. Group 3: Speaker Highlights - The conference will feature prominent speakers from various leading companies and research institutions, providing deep insights into the future of AI [6][7]. - Notable speakers include: - Zhao Jian, Director of Multimedia Cognitive Learning at China Telecom AI Research Institute [8]. - Zhou Pan, Multimodal Intelligence Lead at Li Auto [10]. - Tang Rui, Chief Scientist at Qunke Technology [13]. - Zhang Junlin, Chief Scientist at Sina Weibo [14]. - Leng Dawei, Vice President of 360 AI Research Institute [15]. - Wang Zhaode, Technical Expert at Alibaba [16]. - Jiang Yudong, Head of Intelligent Creation Technology at Bilibili [18]. - Chen Yingfeng, Head of Robotics Algorithms at NetEase [19]. - Zhang Heng, Senior Algorithm Expert at Xiaomi [20]. Group 4: Call for Participation - The conference invites AI community members to contribute by sharing their successful cases, technical insights, and innovative ideas, enhancing the event's value [24][25]. - Companies are encouraged to participate through exhibitions, technical exchanges, and project collaborations to showcase their innovative technologies and expand cooperation opportunities [27].
万通发展拟跨界收购数渡科技63%股权 开辟高速交换芯片新增长点
Jing Ji Guan Cha Wang· 2025-08-11 05:33
Core Viewpoint - The company, Wantong Development, is planning to invest approximately 854.45 million yuan to acquire a 62.98% stake in Beijing Shudu Information Technology Co., Ltd. (Shudu Technology), marking a strategic move towards digital technology and high-value digital chip sectors [1][2]. Group 1: Investment Details - The investment will be executed through capital increase and equity transfer, with a board meeting scheduled for August 13 to review the investment [1]. - Upon completion of the investment, Shudu Technology will become a subsidiary of Wantong Development and will be included in the consolidated financial statements of the company [1]. Group 2: Business Focus of Shudu Technology - Shudu Technology specializes in high-speed interconnect chip design and development, providing ASIC chip customization services, with its core product being PCIe high-speed switching chips [1][2]. - The PCIe high-speed switching chip is essential for connecting devices and facilitating high-speed data transfer, widely used in servers, AI computing, and storage [1][2]. Group 3: Market Potential - The global PCIe switching chip market was valued at approximately $4.58 billion in 2022, with projections to reach $13.53 billion by 2030, reflecting a compound annual growth rate (CAGR) of 14.5% from 2022 to 2030 [2]. - The AI server sector is expected to be the fastest-growing downstream market for PCIe switching chips, with global AI server shipments projected to reach 1.65 million units in 2024, a 46% year-on-year increase [2]. Group 4: Domestic Market Dynamics - Currently, the domestic market for mid-to-high-end PCIe switching chips relies heavily on imports, with U.S. firm Broadcom dominating the AI server market [3]. - Domestic manufacturers, including Shudu Technology, are actively developing PCIe switching chips, indicating a push towards domestic substitution in the market [3]. - The transaction is expected to accelerate the process of domestic substitution for switching chips, supported by policies, market demand, and capital investment [3].
万通发展拟8.54亿元取得数渡科技62.98%股权 注入优质芯片设计业务资产
Zheng Quan Shi Bao Wang· 2025-08-10 15:52
Group 1 - Wante Development plans to invest 854 million yuan to acquire 62.98% stake in Shudu Technology through capital increase and equity transfer [1] - Shudu Technology specializes in high-speed interconnect chip design and development, providing ASIC chip customization services, with its core product being PCIe high-speed switch chips [1] - PCIe high-speed switch chips are essential for AI servers, facilitating efficient data transfer between CPUs and GPUs, and are critical components for building Scale-up supernode solutions [1][2] Group 2 - Currently, the mid-to-high-end PCIe switch chip market is dominated by imports, particularly by US firm Broadcom in the AI server sector [2] - The global PCIe switch chip market was approximately 4.58 billion USD in 2022, with a projected growth to 13.53 billion USD by 2030, reflecting a compound annual growth rate of 14.5% from 2022 to 2030 [2] - The demand for PCIe switch chips in the AI server sector is expected to grow rapidly, with domestic accelerated computing servers projected to have a compound growth rate of 35% from 2025 to 2029 [2] Group 3 - This acquisition is a strategic move for Wante Development to enter the high-value digital chip sector, aligning with its goals in the digital technology field [3] - The transaction is expected to enhance the company's business growth and improve its development quality by injecting high-quality chip design assets into the listed company [3] - Prior to the announcement of the acquisition, Wante Development's stock price reached a limit up, closing at 7.63 yuan per share, with a total market value of 14.42 billion yuan as of August 8 [3]