Core Viewpoint - On October 17, users reported issues with the Zhihu app and website, indicating a system malfunction that led to loading failures [1] Group 1 - Multiple users experienced abnormal behavior on the Zhihu app and web platform, with reports of "loading failed" messages [1] - Zhihu customer service acknowledged the issue, stating that the engineering team is urgently investigating the system anomaly and apologized for the inconvenience [1]

Core Points - Zhihu experienced a sudden service outage, leading to users being unable to access the website, which caused the topic "ZhihuCrashed" to trend on social media [1] - As of the time of reporting, the web service has been restored, and users can access the content normally [1]

Group 1 - Fuyao Glass announced that Chairman Cao Dewang resigned to promote strategic optimization and sustainable development, with Cao Hui elected as the new chairman [2] - Fengchao's founder and CEO Xu Yubin resigned due to health reasons, with no response from the company regarding successors [4] - Dong Yuhui's live streaming sales exceeded 300 million yuan during the "Double 11" shopping festival, with significant audience engagement [5] Group 2 - OneStar Robotics is reportedly in the process of dissolution just a month after securing significant funding [5] - Peak responded to salary reduction concerns, stating it is a temporary measure aimed at job preservation and long-term development [5] - JD.com has initiated a pilot program in 25 cities to eliminate penalties for delivery riders exceeding order time, shifting to a service score management system [5][6] Group 3 - Meituan announced changes to merchant rating calculations to reduce the impact of malicious reviews, with new metrics being introduced [6] - TSMC reported a third-quarter net profit of approximately 452.3 billion NTD, with a revenue increase of 30.3% year-on-year [9] - Nestlé plans to lay off about 16,000 employees globally over the next two years to enhance operational efficiency [14] Group 4 - Cloudy Technology debuted on the Hong Kong Stock Exchange, with shares rising 49% on the first day of trading [15] - Xense Robotics completed a Pre-A round financing of over 100 million yuan, marking its third round of funding this year [15] - Apple is preparing to launch a MacBook with a touchscreen, expected to be released in late 2026 or early 2027 [16] Group 5 - Ferrari's new model Amalfi is set to launch in China with a starting price of 2.5985 million yuan, with deliveries expected to begin in Q4 2026 [18] - OpenAI's Sora 2 update allows all users to generate 15-second videos, with Pro users able to create longer videos [20] - China's exports grew by 7% in the first three quarters, with significant shifts in market focus towards Europe [23]

Core Viewpoint - ByteDance has launched at least 20 short story mini-programs within the Douyin app, indicating a strategic move to capture the short story market leveraging Douyin's traffic advantage [1] Group 1: Company Strategy - The launch of the short story matrix is part of ByteDance's broader strategy to establish a diversified content ecosystem, having previously developed products in short dramas and novels [1] - The introduction of short stories represents a new segment in the "short and quick" content arena, aiming to quickly seize market share [1] Group 2: Market Competition - Other internet platforms have also targeted the short story market, with notable examples including QQ Reading, which has categorized short stories as a distinct genre, and Alibaba's UC, which has launched a separate "story" channel alongside its "short drama" channel [1] - Zhihu has taken a more aggressive approach by launching an independent short story app called "Yan Yan Story" to capture market share [1]

Core Insights - The discussion on "Is Calculus Really Difficult?" has gained significant attention on Zhihu, attracting top scholars and engaging a wide audience in a dialogue that combines academic depth with public interest [1][2] Group 1: Academic Contributions - Ma Xiao, an assistant professor at the University of Michigan, recently made a breakthrough in the study of Hilbert's sixth problem, which had been dormant for 125 years [1] - Wang Mengdi, a professor at Princeton University, suggests that calculus may serve as a "natural language of the universe," simplifying complex operations into intuitive actions [2] Group 2: Community Engagement - The event coincides with China's first official Science Popularization Month in September, marking the launch of Zhihu's 2025 Science Season [2] - Zhihu aims to create a platform for public scientific dialogue, enhancing the accessibility and engagement of scientific discussions within the community [2]

Core Insights - The article emphasizes the importance of Post-Training as a transformative approach in AI, moving beyond simple model optimization to creating specialized intelligent engines tailored to specific business needs [1][4] - The evolution of Post-Training technology is highlighted, showcasing a shift from Supervised Fine-Tuning (SFT) to Reinforcement Learning (RL) methodologies, which better align with complex business requirements [2][4] Summary by Sections Post-Training Evolution - The initial approach in the industry was SFT, which allowed models to learn specific domain knowledge and dialogue styles [2] - However, SFT was insufficient for teaching models complex value judgments and strategic choices, which are critical in real business scenarios [3] - The focus has shifted to RL, evolving from human-dependent methods (RLHF) to automated systems (RLVR) and the innovative use of Natural Language Rewards [4][5] Implementation Pathway - The article outlines a four-step pathway for enterprises to implement Post-Training effectively, addressing challenges such as data quality, high labeling costs, and defining reward signals [5][8] - Successful case studies from companies like Zhihu, AutoHome, and Weibo illustrate practical applications of these steps, showcasing improvements in data quality and model performance [7][8] Step 1: Data Preparation - High-quality data is identified as the cornerstone of successful Post-Training, with companies spending 60-70% of their time on data preparation [10] - Zhihu and AutoHome have developed methods to enhance data quality through pre-labeling and structured data utilization, respectively [11][13] Step 2: Model Selection - Choosing the right base model is crucial, with many companies opting for the Tongyi Qianwen series due to its performance and support for Post-Training [14][16] - The model's architecture and open-source ecosystem facilitate easier implementation of Post-Training techniques [15][18] Step 3: Reward Mechanism Design - The design of a reward mechanism is essential for aligning model outputs with business objectives, transitioning from human feedback to automated verification systems [24][25] - Companies like Yingmi Fund are exploring ways to integrate expert decision-making frameworks into their models to enhance performance [26] Step 4: Evaluation System - A robust evaluation system is necessary to measure the effectiveness of Post-Training, with Yingmi Fund developing benchmarks to assess model performance in real-world scenarios [27][28] - Successful implementations have led to significant improvements in model accuracy and business outcomes, as seen in the case of Baifeng Cloud and Quark [30][32] Conclusion - The article concludes that the true competitive advantage in AI lies in how companies leverage their unique data and business insights through Post-Training to create proprietary intelligent engines [32]

Core Viewpoint - The Nasdaq China Golden Dragon Index experienced a significant drop of over 3%, marking the largest decline since August 27 [1] Company Performance - Kingsoft Cloud fell by 9% [1] - GDS Holdings, Daqo New Energy, and NIO all dropped by over 7% [1] - Upstart, JinkoSolar, Xiaopeng Motors, Zhihu, and WeRide saw declines of over 6% [1] - Bilibili, Alibaba, Baidu, and JD.com each fell by over 5% [1]

Core Insights - The article emphasizes the growing consumer interest in gut health and the need for professional evaluation of probiotic products due to market inconsistencies in labeling and effectiveness [1] Group 1: Product Evaluation - Zhuoyue Probiotics contains 300 billion CFU of active bacteria per serving, verified by third-party testing, ensuring consumers receive the actual viable count [3] - The formulation includes 36 clinically validated probiotic strains and 11 prebiotics, supporting gut health without added sugars or artificial ingredients, meeting high purity standards [4] - Advanced triple-layer microencapsulation technology ensures over 98% survival of probiotics in acidic environments, enhancing their effectiveness in gut intervention [5] Group 2: Market Performance - Zhuoyue Probiotics has consistently ranked among the top-selling probiotics on platforms like Tmall and JD for three years, with a repurchase rate at a high industry level and a 98% positive feedback rate [6] - The product is backed by research from the Chinese Academy of Sciences and has undergone rigorous testing, including a randomized controlled trial showing significant improvements in bowel regularity and reduced bloating [8][9] Group 3: Consumer Trust and Safety - The product is insured for quality and has received GRAS and QPS certifications, indicating its safety for daily use among adults and adolescents [9] - Positive consumer feedback highlights the product's effectiveness in alleviating digestive issues, with many users reporting significant improvements [11] Group 4: Recommendations for Consumers - The article advises consumers to choose probiotics with clear ingredient lists, verified active bacteria counts, and advanced encapsulation technologies to ensure efficacy [19] - Zhuoyue Probiotics is recommended as a reliable choice due to its rigorous quality control, scientific backing, and understanding of local gut health needs [20]

股份發行人及根據《上市規則》第十九B章上市的香港預託證券發行人的證券變動月報表 截至月份: 2025年9月30日 狀態: 新提交 致：香港交易及結算所有限公司 公司名稱: 知乎 呈交日期: 2025年10月8日 I. 法定/註冊股本變動 | 1. 股份分類 | 不同投票權架構公司普通股 | 股份類別 | A | | 於香港聯交所上市 (註1) | | 是 | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 證券代號 (如上市) | 02390 | 說明 | | | | | | | | | | 法定/註冊股份數目 | | | 面值 | | 法定/註冊股本 | | | 上月底結存 | | | 1,550,000,000 | USD | | 0.000125 USD | | 193,750 | | 增加 / 減少 (-) | | | 0 | | | USD | | | | 本月底結存 | | | 1,550,000,000 | USD | | 0.000125 USD | | 193,750 | | 2. 股份分類 | 不同投票權架構公司普通股 ...

Core Viewpoint - The Nasdaq China Golden Dragon Index increased by 1% on October 7, indicating a positive trend in the Chinese stock market, particularly for popular Chinese concept stocks [1] Company Performance - Niu Technologies (小牛电动) saw a significant rise of over 23% in its stock price [1] - XPeng Motors (小鹏汽车) and Baidu (百度) both experienced an increase of over 2% [1] - Zhihu (知乎), JD.com (京东), and Miniso (名创优品) rose by more than 1% [1] - NIO (蔚来) faced a decline of over 1% in its stock price [1]