回魂夜

一 |     NAIROBI, Kenya -- The lawyer representing 184 former Facebook content moderators based in Kenya who sued the site's parent company, Meta, over working conditions and pay told the judge Monday that Meta has not been sincere in trying to reach an out-of-court settlement as agreed in the last court session.Lawyer Mercy Mutemi said the talks had collapsed and the former moderators want to proceed with a contempt of court case against Meta.“The petitioners gave it their best effort. They attended every mediation. The respondents asked for information which we gave them. They kept saying they would get back to us by a certain date but only got back to us at the end of last week with a very small amount that cannot even take care of the petitioners’ mental health,” she told the court. She described Meta as “not genuine.”The moderators were employed via Sama, a San Francisco subcontractor that describes itself as an ethical AI company, to work in its hub in the capital, Nairobi. Their job entailed screening user content in 12 African languages and removing any uploads deemed to breach Facebook’s community standards and terms of service.Some of the petitioners have told The Associated Press that their job required them to watch horrific content for eight hours a day that overwhelmed many of them while being paid 60,000 Kenyan shillings, or $414 a month. They accused Sama of doing little to ensure post-traumatic professional counseling was offered. They are seeking $1.6 billion in compensation.Meta and Sama lawyers told the court they thought the mediation was making good progress, with long hours involved, until the moderators’ lawyer wrote to them in protest.Justice Nduma Nderi said the failed talks were a “missed opportunity” to find a balance between the parties involved as opposed to the court issuing an order.The parties will now appear at a hearing on Oct. 31 on the moderators’ application to find Meta and Sama in contempt of court.The lawsuit is the first known court challenge of its kind against Facebook outside the United States. In 2020, Facebook agreed to pay $52 million to U.S. content moderators who filed a class action lawsuit after they were repeatedly exposed to beheadings, child and sexual abuse, animal cruelty, terrorism and other disturbing content.Facebook and Sama have defended their employment practices.。    　　中新社北京8月24日电 (记者 吕少威 陈杭 徐婧)天卓队机器人以9.39秒的成绩打破了9.58秒的人类百米世界纪录；天工Ultra机器人原地跳高跳出2.8843米的成绩，超越了人类男子跳高世界纪录2.45米……　　正在北京国家速滑馆“冰丝带”举办的第二届世界人形机器人运动会上，参赛机器人在100米、400米、1500米等多个赛项中接连突破人类生理极限，展现出极强的爆发力与运行稳定性，技术迭代速度远超行业预期。

二 | 8月22日，北京，第二届世界人形机器人运动会在国家速滑馆“冰丝带”开幕。图为开幕式前进行100米预赛。　中新社记者 韩海丹 摄　　其中，北京人形机器人创新中心旗下的机器人堪称“纪录粉碎机”，屡次创造历史性突破。截至8月23日的奖牌榜，该中心参赛机器人已斩获5金2银6铜，成为本届赛事焦点。　　从去年首届赛事的“蹒跚学步”，到如今“比肩人类”甚至实现超越，短短一年间，人形机器人再次完成对自身极限的突破。　　“今年全行业运动速度整体提升，本质是各厂商机器人本体能力的持续进阶。”天工Ultra机器人研发负责人、北京人形机器人创新中心人形部负责人郭宜劼表示，今年关节性能迎来关键升级，转矩和转速均实现大幅提升，这离不开机器人算法学习强化和训练方式迭代。

三 | 同时，机器人电器件的可靠性也得到了系统性增强。

四 | 　　北京人形机器人创新中心运动控制算法专家韩刚表示，天工Ultra的关节力矩上限非常高，已足够用在一辆小型新能源车上。其电容量也非常大，足够支撑奔跑中的高功耗。　　在23日进行的400米小型组决赛中，天工Omni机器人以45.66秒的成绩夺冠。因其奔跑时躯干前倾、双手收于身前的姿态酷似“害羞捂脸”，被网友戏称为“害羞式跑姿”，迅速在社交平台破圈传播。　　“这个跑姿并非趣味性设计，而是性能平衡的结果。”北京人形机器人创新中心运动控制算法专家孟祥向中新社记者表示，团队最初采集了人类跑步数据，但机器人峰值速度接近每秒10米，人类的运动数据已无法覆盖其需求。

五 | 　　为此，技术团队利用机器人腰部关节性能优势，通过大幅扭腰来平衡腿部高速摆动产生的竖直方向重心偏移，确保机器人在高速行进中精准跟踪跑道；而双手置于身前的姿态，则让重心投影更加靠前，形成一种“自己拉着自己跑”的动态平衡，进一步释放冲刺速度上限。8月23日晚，北京，第二届世界人形机器人运动会跳远决赛在国家速滑馆举行。图为机器人选手在比赛中。　中新社记者 贾天勇 摄　　随着运动速度和强度不断攀升，高负荷下的关节散热是各赛队重点攻坚的方向之一。孟祥说，人形机器人高速奔跑时，髋、踝两大核心关节持续处于峰值输出状态，尤其是高频往复运动的髋关节热量累积最快，是制约长距离竞速成绩的核心因素。　　孟祥称，团队针对不同赛距定制差异化的热管理策略。400米短距离竞速主打高速进风被动散热；1500米长距离赛事则搭载专用液冷散热系统，保障关节长时间满负荷输出的稳定性。　　针对近期外界热议的“终点撞停”现象，孟祥作出回应：这是竞技场景下的策略性取舍。当前各赛队均以冲线成绩为核心目标，因此普遍选择速度优先的策略，一定程度上牺牲了终点段的刹停距离。

六 | 　　“事实上，高动态制动技术的研发一直在同步推进。”他表示，极限加速过程中积累的动力学数据，正是优化制动控制算法的核心素材。制动能力对机械设计和控制算法都是极大考验，后续产品迭代中会逐步补齐这一能力短板，实现速度与可控性的平衡。