而自从端到端和大语言LLM横空出世以来，大规模无监督的预训练 + 高质量数据集做具体任务的微调， 可能也会成为量产感知算法下一阶段需要发力的方向。同时数 据的联合标注也是当下各家训练模型的实际刚需，以往分开标注的范式不再适合智能驾驶的算法发展需求。今天自动驾驶之心就和大家一起分享下4D数据的标注流 程： 最复杂的当属动态障碍物的自动标注，涉及四个大的模块： 而为了尽可能的提升3D检测的性能，业内使用最多的还是点云3D目标检测或者LV融合的方法： 得到离线单帧的3D检测结果后，需要利用跟踪把多帧结果串联起来，但当下跟踪也面临诸多的实际问题： 离线3D目标检测； 离线跟踪； 后处理优化； 传感器遮挡优化； 点击下方 卡片 ，关注" 自动驾驶之心 "公众号 戳我-> 领取 自动驾驶近15个 方向 学习 路线 千万级4D标注方案应该怎么做？ 智能驾驶算法的开发已经到了深水区，各家都投入了大量的精力去做量产落地。其中一块最关键的就是如何高效的完成4D数据标注。无论是3D动态目标、OCC还是静 态标注。 相比于车端的感知算法，自动标注系统更像是一个不同模块组成的系统， 充分利用离线的算力和时序信息，才能得到更好的感知结果 ...

Robotaxi rulesWhole Mars Catalog (@WholeMarsBlog):Robotaxi rules https://t.co/cfIZ5OdwYl ...

Whatever one feels about Tesla's controversial CEO, Elon Musk, one thing is clear: the EV company and its leader know how to sell a robotaxi vision. As a testament: Tesla doesn't have a single robotaxi on the road providing paid rides, years after Musk has promised multiple times that it's just around the corner. The closest glimpse of an unmanned Tesla on public roads only came on June 10 with a short clip on X that showed a black Model Y appearing to drive itself on Austin's road with another Tesla trail ...

昨天，创立仅 6 个月的 AI Coding 产品 Base44 以 8000 万美金被 Wix 收购的新闻《 创立 6 个月的 AI 卖了 8000 万美金没融资一个创始人，App 的 AI Coding 也火了》 ，让我们再次感受到了 AI 正在成为一个新的财富杠杆。 当所有人都在关注大模型公司之间的较量以及 Scale AI 时，还有一家公司已经悄然崛起，成为了 AI 训练数据领域的隐形冠军。 它在没有任何外部投资、只有 100 人左右团队的情况下，已经成长为 10 亿美金 ARR 的数据标注公司，而且从一开始公司就是盈利状态，其同时期的收 入甚至超过了估值 290 亿美金的 Scale AI。 其创始人与 Scale AI 创始人 Alexandre Wang 一样，也是一位华人。公司官网更是简单的只有一个简介，并且他个人在社交媒体上也很低调，以至于外 界没有多少人知道。 这就是 Surge AI，创始人 Edwin Chen 曾在 MIT 读数学和语言学专业。这个看似奇特的学科组合，为他日后在 AI 领域的成功奠定了独特的基础。数学赋 予了他对算法的深度理解，语言学让他洞察了人类语言的复杂性——这正 ...

Core Viewpoint - JD.com has officially announced its entry into the travel and accommodation sector, intensifying competition with Ctrip, the leading player in China's online travel agency (OTA) market [1][2]. Group 1: JD.com's Strategy - JD.com has initiated a series of measures to support its travel business, including partnerships with over 30,000 large enterprises and more than 8 million small and medium-sized enterprises, offering hotel merchants a "JD Hotel PLUS Membership Plan" with up to three years of zero commission [1]. - The company has launched a "Life Travel" section on its app, featuring categories such as flights, hotels, tickets, and vacation packages, emphasizing a "no bundling" sales approach for flight tickets [9]. Group 2: Ctrip's Market Position - Ctrip reported a revenue of 53.294 billion yuan for 2024, a year-on-year increase of 19.73%, and a net profit of 17.067 billion yuan, up 72.08%, maintaining a significant lead in both revenue scale and market share [3]. - Ctrip has a history of successfully countering competitors by addressing their weaknesses, such as locking in high-end service customers and controlling inventory, which has solidified its dominant position in the market [8][10]. Group 3: Competitive Landscape - The competition between JD.com and Ctrip is expected to be fierce, as JD.com lacks the deep experience in the OTA space that Ctrip has accumulated over the years, particularly in complex pricing algorithms and customer service processes [6][17]. - Ctrip's strong market position is attributed to its effective business model, technological innovations, and precise market targeting, which have allowed it to maintain profitability and expand its user base [12][13][14]. Group 4: Market Trends - The OTA market in China is currently dominated by three major players: Ctrip, Meituan, and Fliggy, each establishing a stable market position, making it challenging for new entrants like JD.com to disrupt the existing balance [17]. - Ctrip has capitalized on policy benefits, particularly in international business orders, with a significant increase in inbound bookings, reflecting a 100% year-on-year growth in the first quarter [15].

Core Viewpoint - The hotel industry is buzzing about JD's announcement of "up to 3 years with zero commission" for hotel listings, but the practicality and long-term implications of this strategy are questioned [1][4][16]. Group 1: Market Context - As of the end of 2024, there are approximately 370,300 hotels in China, with a chain rate exceeding 45%, indicating that many hotels have established supply chains that may be more efficient than JD's [6][7]. - Leading hotel brands not only have strong supply chains but also robust franchise systems to maintain control over their resources [8]. Group 2: Competitive Landscape - The hotel industry is characterized by a gradual adjustment of commission rates, with platforms like Meituan and Ctrip having established their market positions over time [19][21]. - JD's entry into the hotel sector is compared to its previous experience in the food delivery market, where it initially offered zero commission but faced challenges in maintaining profitability [27][30]. Group 3: Strategic Challenges - The hotel business requires building direct connections with hotels, inventory distribution systems, and pricing strategies, which is more complex than the logistics of food delivery [48]. - JD's historical attempts to enter the OTA market, such as investing in Tuniu, have not been successful, raising concerns about its current strategy [43][46]. Group 4: Potential Opportunities - There is potential for JD to succeed in the hotel sector, but it will require sustained effort, patience, and a focus on building relationships with hotels rather than relying solely on promotional tactics [55][66]. - The concept of "JD Hotel PLUS Membership" could create an ecosystem that integrates member benefits, points redemption, and cross-category recommendations, which may differentiate JD from existing OTA players [69]. Group 5: Long-term Perspective - The OTA market is not conducive to quick wins; it favors long-term strategies and consistent efforts to build a network of partnerships with hotels [72][74]. - JD must focus on becoming "JD's OTA," leveraging its strengths in supply chain management to carve out a unique position in the hotel industry [68].

Core Insights - Sprout Social is utilizing Coupa's AI-native total spend management platform to enhance spend management analysis and improve financial visibility across its operations [1][2] - The partnership aims to streamline procurement processes and drive operational efficiency, allowing Sprout Social to gain better control over its spending and growth [2][3] Company Overview - Sprout Social is recognized as a leader in cloud-based social media management software, serving approximately 30,000 brands with its platform [6][7] - Coupa is the leader in AI-native total spend management, leveraging a dataset of $8 trillion and a network of over 10 million buyers and suppliers to automate the buying process [5] Operational Efficiency - The integration of Coupa with Sprout Social's ERP has eliminated manual data entry, reducing operational issues and fiscal anomalies [3] - Coupa's solutions are designed to enhance procurement practices, providing Sprout with visibility into all lines of spend and improving overall efficiency [3][4] Strategic Growth - The collaboration between Sprout Social and Coupa is positioned to unlock the full potential of total spend management, driving transparency and impactful business outcomes [4] - Coupa's platform supports Sprout in implementing effective controls and monitoring spending abnormalities, thereby streamlining indirect procurement and accounts payable processes [3]

Hims & Hers Health shares rocketed higher over the last year, rewarding investors.When it comes to healthcare stocks, many investors pay attention to the usual suspects: Eli Lilly, Novo Nordisk, CVS Health, or Johnson & Johnson. These companies have built up enormous brand equity thanks to blockbuster drugs and widely recognized pharmacy management services.With the exception of CVS, whose shares have risen 46% so far this year, none of the other companies have generated robust stock price returns so far in ...

A Tesla Cybertruck sits on a lot at a Tesla dealership on April 15, 2024 in Austin, Texas.Tesla shares slid more than 2% Tuesday after a report that the electric vehicle maker was halting production of Cybertruck and Model Y models for a week in Austin, Texas.The production stoppage begins June 30, Business Insider reported, citing a staff meeting where the announcement was made. The pause, which is for maintenance on production lines, would be the third such shutdown at the Austin facility in the past year ...

Key Takeaways Tesla's Q1 deliveries dropped 13% YoY, with margins sliding and U.S. EV share falling below 50%. Rivian trimmed 2025 delivery targets and burned cash, but aims for efficiency with its lower-cost R2 SUV. TSLA's energy unit shines bright, while RIVN posts gross margin gains for the second time in Q1.Tesla, Inc. (TSLA) and Rivian Automotive (RIVN) are two noted names in the electric vehicle (EV) space — one is an established giant, the other a young and ambitious startup.Tesla changed the game ...