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准确度提升400%,印度季风预测模型基于36个气象站点,实现城区尺度精细预报
3 6 Ke· 2025-09-17 07:27
近年来,孟买极端降雨频率与强度显著上升,而传统全球预报系统因分辨率不足难以捕捉局地天气特征。为此,印度理工学院孟买分校与马里兰大学合 作,开发了基于卷积神经网络与迁移学习的预测模型,实现了对极端降雨事件的提前预报。 每年 6 月至 9 月,印度孟买进入季风季节。近年来,孟买极端降雨事件频发,平均降雨量较 2019 年前增加了近 40%。这座拥有 1800 万人口的沿海城市 常因暴雨陷入混乱:天气预警滞后往往导致停工停学甚至严重洪灾,季风带来的重大灾害对更精准的本地化天气预测提出了迫切需求。 然而,在热带季风气候下,标准全球天气模型约 25 平方公里的分辨率难以捕捉局部天气系统的细微差异,地形的复杂性也加剧了洪水的空间不确定性。 因此,对季风预测此前仅限于宏观趋势。 为填补城市洪水风险预判对缺口,印度理工学院孟买分校与马里兰大学研究团队合作开发了基于卷积神经网络(CNN)和迁移学习(CNN-TL)的超本地 预测模型,实现了提前数天预测大部分强降雨事件。根据 Science 最新报道,目前,孟买方面已经考虑将其纳入官方预警体系,标志着南亚城市洪水预报 进入了超本地化的新阶段。 相关研究成果以「Hyperlocal ...
第四范式20250826
2025-08-26 15:02
Summary of Fourth Paradigm Conference Call Company Overview - Fourth Paradigm is a leading enterprise-level AI platform established in September 2014, focusing on digital transformation for enterprises through its core platforms: Prophet AI Platform, SHIFT Intelligent Solutions Platform, and AIGS Services [2][3][4]. Financial Performance - Revenue growth has been robust, reaching 4.2 billion yuan in 2023, a year-on-year increase of 36.4% [2][6]. - The number of benchmark users increased from 18 in 2018 to 139 in 2023, with average revenue per user rising from 3.9 million yuan to 8.38 million yuan [2][6]. - The company reported a net loss of 909 million yuan in 2023, a reduction of 736 million yuan compared to the previous year, indicating a trend towards profitability [2][10]. Industry Focus - The company has a strong revenue presence in the financial and energy sectors, which accounted for 20.3% and 16.9% of total revenue in 2022, respectively [2][7]. - Fourth Paradigm's industry coverage is relatively low in concentration, enhancing its risk resilience [2][7]. Cost Management and R&D Investment - Sales, management, and financial expense ratios have decreased over the years, with 2023 rates at 10.08%, 8.13%, and 9.1%, respectively [2][8]. - R&D expenses reached 1.769 billion yuan in 2023, constituting 42.08% of total revenue, reflecting a commitment to building a long-term competitive moat [2][9][15]. Core Technologies and Market Strategy - The company leverages four core technologies: AutoML, transfer learning, environmental learning, and automated reinforcement learning, which lower user entry barriers and enhance technology applicability [12][14]. - Fourth Paradigm aims to meet large customer needs by refining products and gradually lowering platform usage barriers, with a focus on high-value sectors like banking, energy, and healthcare [17][18]. Future Growth Potential - The company is positioned to benefit from the digital transformation trends in industries such as energy and manufacturing, with significant market opportunities identified [20]. - The AI spending in China reached 255.5 billion yuan in 2022, projected to grow to 691 billion yuan by 2027, indicating a compound annual growth rate of 25.1% [20]. Competitive Positioning - Fourth Paradigm is recognized as a top player in the continued learning development platform market, holding a 32.7% market share in Q4 2022 [21]. - The company is expected to capitalize on the growth opportunities presented by the digital transformation of Chinese enterprises [21]. Impact of Large Model Technology - The introduction of large model technology, particularly with the launch of Prophet AIOS 5.0, is anticipated to enhance predictive capabilities and broaden the application of AI technologies [22]. Recent Performance Highlights - The company’s recent interim report indicates strong performance and growth acceleration in line with AI industry trends, reinforcing its investment potential [23].
议程公布 | 2025智能机器人关键技术大会——具身智能专题论坛、康养机器人专题论坛
机器人圈· 2025-07-17 13:40
Core Viewpoint - The "2025 Intelligent Robot Key Technology Conference" will be held in Qiqihar City from July 22-24, 2025, focusing on advancements in intelligent robotics and their applications across various industries [1]. Group 1: Embodied Intelligence Forum - The "Embodied Intelligence Forum" will take place on the afternoon of July 23, 2025, emphasizing core technological innovations and cross-industry applications in embodied intelligence [2]. - The forum will feature expert reports and PhD flash presentations aimed at promoting the full-chain development of embodied intelligence from theoretical breakthroughs to industrial implementation [2]. Group 2: Expert Reports - Key presentations include: - "Cognitive Navigation Technology for Embodied Intelligence" by Professor Yue Yufeng from Beijing Institute of Technology, addressing dynamic environment perception and autonomous decision-making [3]. - "High-Quality Development Path for Mining Embodied Intelligent Robots" by Wang Lei, focusing on intelligent solutions for specialized scenarios [3]. - "Dynamic Locomotion Control of Legged Robots" by Professor Zhang Guoteng, innovating adaptive technologies for complex terrains [3]. - "Human-Machine Collaboration Driven by Cross-Modal Embodied Intelligence" by Associate Professor Yang Kun, exploring multi-modal perception integration and operational optimization [3]. - "Fall Prediction Research Based on Transfer Learning and Attention Fusion ResNet" by Professor Wu Chuanyan, enhancing intelligent health monitoring systems [3]. - "Skill Learning for Robot Manipulation of Flexible Objects" by Fu Tianyu, tackling challenges in unstructured environments [3]. Group 3: PhD Flash Presentations - The forum will also showcase young scholars presenting cutting-edge research on the application innovations of embodied intelligence in industrial and medical fields, highlighting the youthful energy driving technological implementation [4]. Group 4: Health and Rehabilitation Robots Forum - The "Health and Rehabilitation Robots Forum" will be held on the morning of July 24, 2025, addressing technological solutions to aging challenges [6]. - Expert reports will cover topics such as: - "Robot Empowerment Paths for China's Aging Population" by Zhang Jianhua, outlining technological routes to address aging society issues [6]. - "Technological Innovation in Elderly Care Services and Applications of Care Robots" by Lan Zhi, discussing care scenarios across institutions, communities, and homes [6]. - "Key Technologies and Clinical Research of Lower Limb Rehabilitation Exoskeleton Robots" by Guo Zhao, revealing new mechanisms for gait reconstruction and neural compensation [6]. - "Intelligent Gait Analysis and Clinical Applications" by Ji Bing, driving innovations in AI-enabled rehabilitation assessment paradigms [6]. - "Design and Implementation of Acupuncture Robot Systems" by He Zhaoshui, overcoming automation challenges in traditional therapies [6]. - "Bionic Arm Systems with Multi-Modal Tactile Perception" by Zhang Ting, exploring fine manipulation challenges in human-robot interaction [6]. - "Personalized Rehabilitation Assessment and Motion Control Optimization Driven by Muscle Coordination" by Sheng Yixuan, pioneering personalized functional reconstruction solutions [6]. Group 5: Youth Innovation Reports - The forum will feature flash presentations from young scholars on topics such as: - "Minimum Impact Trajectory Planning for Lower Limb Rehabilitation Robots" by Wang Xincheng [7]. - "Cardiovascular Health Risk Perception Technology Based on Multi-Sensor Fusion" by Xie Shiqin [7]. - "Design and Analysis of Multi-Posture Lower Limb Rehabilitation Robots" by Yu Hongfei [7]. - "Development of Portable Multi-Channel fNIRS Systems" by Xiang Jiayao [7].
游戏教父 John Carmack:LLM 不是游戏的未来
AI前线· 2025-06-16 07:37
Core Viewpoint - The article discusses the evolution and challenges of artificial intelligence (AI) in gaming and virtual environments, emphasizing the importance of interactive learning experiences over traditional pre-training methods. It critiques the limitations of large language models (LLMs) and highlights the need for more effective learning frameworks in AI development [16][18][19]. Group 1: Background and Development - Id Software, founded in the 1990s, played a significant role in the development of iconic games that contributed to GPU advancements and the modern AI landscape [3]. - The author has extensive experience in various tech companies, including Armadillo Aerospace and Oculus, focusing on the development of virtual reality technologies [6][8]. Group 2: Learning and AI Models - The article critiques the effectiveness of LLMs, arguing that many people do not fully understand their limitations, particularly in learning from new environments [16]. - It emphasizes the importance of interactive learning, suggesting that AI should learn through experiences similar to how humans and animals do, rather than relying solely on pre-trained models [16][18]. Group 3: Gaming and AI Interaction - The author notes that traditional gaming AI often relies on internal game structures, which can lead to cheating, while cloud gaming could mitigate this issue [18]. - The article discusses the limitations of current AI models in learning from games, highlighting that significant amounts of experience (e.g., 200 million frames) are required to reach human-level performance [20][34]. Group 4: Challenges in AI Learning - The article identifies ongoing challenges in continuous, efficient, and lifelong learning within AI, which are tasks that even simple animals can accomplish easily [20]. - It points out that many AI systems struggle with learning in complex environments, and traditional reinforcement learning frameworks may not be suitable for all scenarios [30][32]. Group 5: Future Directions - The author proposes a mixed approach to learning environments, combining passive and interactive content to enhance AI learning capabilities [22]. - The article suggests that new benchmarks should be established to evaluate AI performance across various games, focusing on long-term learning and retention of skills [95][97].
中国全球海洋融合数据集面向国际公开发布
news flash· 2025-06-09 23:05
Core Points - The third United Nations Ocean Conference, co-hosted by France and Costa Rica, opened in Nice, France on June 9 [1] - The China National Ocean Information Center led a side event titled "Smart Ocean: Innovative Science Leading Action for a Sustainable Future" [1] - The Ministry of Natural Resources of China publicly released the China Global Ocean Fusion Dataset 1.0, which integrates over 40 different data sources and includes China's independent ocean observations [1] Summary by Categories Dataset Features - The China Global Ocean Fusion Dataset (CGOF1.0) has a time span of up to 60 years and a spatial resolution of 10 kilometers [1] - The dataset incorporates advanced AI technologies such as deep learning, transfer learning, and machine learning, resulting in improved accuracy compared to mainstream foreign datasets [1] International Collaboration - The event highlights China's commitment to international collaboration in ocean data sharing and sustainable ocean management [1] - The integration of diverse data sources reflects a global effort to enhance oceanic research and monitoring [1]
杭州ai图像识别的重点技术
Sou Hu Cai Jing· 2025-05-13 12:54
Core Insights - Hangzhou is a leading city in China for AI image recognition technology, showcasing its strength and potential in this field [1] Group 1: Key Technologies - Deep learning and neural networks are the core of Hangzhou's AI image recognition technology, enabling accurate image content recognition through multi-layered neural networks [3] - Convolutional Neural Networks (CNN) are widely applied in Hangzhou's AI image recognition, effectively extracting spatial features and hierarchical information for tasks like facial recognition and object detection [4] - Generative Adversarial Networks (GAN) are utilized in Hangzhou for data augmentation and image restoration, enhancing model generalization and robustness [5] - Transfer learning and weak supervision learning address data scarcity and label shortage in image recognition tasks, improving model performance and scalability in Hangzhou's AI technology [6] Group 2: Conclusion - The continuous innovation and application of deep learning, CNN, GAN, transfer learning, and weak supervision learning have led to significant achievements in Hangzhou's AI image recognition field, laying a solid foundation for future development [7]
上海交大人工智能实验室成果发布:时间维度开启工业4.0中国方案
Sou Hu Wang· 2025-05-03 11:15
Core Insights - The integration of artificial intelligence (AI) with industrialization is becoming a core driving force for industrial transformation in China [3][9] - Shanghai Jiao Tong University’s Professor Li Jinjing's team has developed an innovative AI automatic control system that introduces a "time dimension" to enhance industrial control [3][5] Group 1: AI and Industrial Transformation - The current industrial landscape faces challenges such as dynamic data analysis difficulties, data labeling bottlenecks, and high computing costs, necessitating interdisciplinary collaboration and the establishment of specialized labeling systems [1][3] - The AI automatic control system developed by Professor Li's team successfully addresses the real-time prediction and regulation challenges in the complex dynamic processes of biological fermentation [3][6] Group 2: Technological Innovations - The introduction of the "time dimension" allows the AI system to track microbial metabolic changes in real-time, significantly improving the precision of production management [5][6] - The system utilizes transfer learning to reduce reliance on large labeled datasets and combines physical interpretability to facilitate model understanding and optimization, thus lowering computing requirements and application costs [8] Group 3: Industry Impact and Future Outlook - The AI system's lightweight design enables small and medium-sized enterprises to easily deploy AI technologies, paving the way for widespread adoption in the industrial sector [8] - The advancements in AI are expected to lead to ultra-fine quality control, flexible production optimization, and enhanced supply chain management, contributing to high-quality development in China's industrial economy [9]