After a rough start to the year, tech stocks have come roaring back. As of this writing, the tech-heavy Nasdaq Composite index has surged by more than 25% over the last two months. So with market sentiment swinging back in favor of tech stocks, let's have a closer look at two social media stocks that I believe are buys right now. Reddit First up is Reddit (RDDT). A relative newcomer as far as social media stocks go, Reddit has only been a public company for a little over a year. However, during that time, i ...

IDEAL团队 投稿 量子位 | 公众号 QbitAI 大幅缓解LLM偏科，只需调整SFT训练集的组成。 本来不擅长coding的Llama 3.1-8B，代码能力明显提升。 上海交大&上海AI Lab联合团队提出创新方法 IDEAL ，可显著提升LLM在多种不同领域上的综合性能。 此外，研究还有一些重要发现，比如： 具体来看—— IDEAL方法 问题建模： 首先按照不同 的领域准备高质量的训练数据集： ， 并给出对应的用于验证的验证集： 。通过在训练集上面训练模型θ，获得训练集上的最优参数：θ 论文 希望在验证 集上的损失达到最小。为了能够方便的调整训练集，论文引入了对应的变量β ，并将这个优化问题 显示地建模了出来： SFT后LLM部分能力甚至退化 大型语言模型 (LLM) 凭借其强大的理解和逻辑推理能力，在多个领域展现了惊人的能力。除了模型参数量的增大， 高质量的数据是公认的LLM性能提升最关键的影响因素。 当对模型进行监督微调（SFT）时，研究人员发现 LLM在多任务场景下常出现"偏科"现象 ——部分能力突出而部分 能力并未涨进，甚至退化。这种不平衡的现象导致大模型在不同的领域上能力不同，进而影响用户 ...

闻乐 发自 凹非寺 量子位 | 公众号 QbitAI 为什么语言模型能从预测下一个词中学到很多，而视频模型却从预测下一帧中学到很少？ 这是UC伯克利大学计算机副教授 Sergey Levine 最新提出的灵魂一问。 他同时是Google Brain的研究员，参与了Google知名机器人大模型PALM-E、RT1和RT2等项目。 Sergey Levine在谷歌学术的被引用次数高达18万次。 "柏拉图洞穴"是一个很古老的哲学比喻，通常被用来说明人们对世界认知的局限性。 Sergey Levine的这篇文章以《柏拉图洞穴中的语言模型》为题，又想要揭示AI的哪些缺陷呢？ 在文章的开头，作者提到人工智能就是在研究能够反映人类智能的灵活性和适应性的假想智能。 一些研究者推测，人类心智的复杂性和灵活性源自于大脑中应用的一个 单一算法 ，通过这个算法可以实现所有多样化的能力。 也就是说，AI如果能复现这个终极算法，人工智能就能通过经验自主获取多元能力，达到人类智能的高度。 在这个探索过程中，语言模型取得了非常成功的突破。 甚至，LLMs实现能力跃升背后的算法（ 下一词预测+强化学习微调 ），也非常简单。 单一终极算法 假设 ...

IDEAL团队 投稿 量子位 | 公众号 QbitAI 大幅缓解LLM偏科，只需调整SFT训练集的组成。 本来不擅长coding的Llama 3.1-8B，代码能力明显提升。 上海交大&上海AI Lab联合团队提出创新方法 IDEAL ，可显著提升LLM在多种不同领域上的综合性能。 此外，研究还有一些重要发现，比如： 具体来看—— SFT后LLM部分能力甚至退化 大型语言模型 (LLM) 凭借其强大的理解和逻辑推理能力，在多个领域展现了惊人的能力。除了模型参数量的增大， 高质量的数据是公认的LLM性能提升最关键的影响因素。 当对模型进行监督微调（SFT）时，研究人员发现 LLM在多任务场景下常出现"偏科"现象 ——部分能力突出而部分 能力并未涨进，甚至退化。这种不平衡的现象导致大模型在不同的领域上能力不同，进而影响用户体验。 上海交大和上海AI Lab的研究者迅速将目光聚焦到SFT训练的训练集上，是否可以通过调整训练集的组成来缓解LLM 偏科的情况？直觉上来看，直接将LLM的弱势科目的训练数据增加一倍，就可以让最后的结果发生变化。但是，由于 训练数据之间的耦合关系，研究者通过建模量化每个领域数据对于最终结果的 ...

JFrog (FROG) 2025 Conference June 05, 2025 01:00 PM ET Speaker0 Everybody, my name is Koji Keda. I am one of the software analysts here at Bank of America. Welcome to day three of our technology conference. I am absolutely thrilled to have JFrog doing a fireside chat with us. We have the CFO, Ed Grabshied, and we also have IR, Jeff Schreiner here. So thank you so much for being here. We appreciate it. I always ask the obligatory introductory comments or question of, you know, what is JFrog? What do you guys ...

The company expects to be the first to implement standards in a commercial application with Genius™VANCOUVER, British Columbia, June 04, 2025 (GLOBE NEWSWIRE) -- VERSES AI Inc. (CBOE: VERS) (OTCQB: VRSSF) ("VERSES'' or the "Company”), a cognitive computing company specializing in next-generation agentic software systems, welcomes the final ratification and forthcoming publication of the Institute of Electrical and Electronics Engineers Standards Association (IEEE-SA) P2874 Spatial Web standards intended to ...

Gamified mobile learning company Duolingo (DUOL 1.35%) has been a market-crushing investment. The stock closed its first day of trading in 2021 at $139 per share. As of this writing, just four years later, it's trading at over $520 per share, up 276% and trading near an all-time high. For perspective, the S&P 500 is up just 34% during this time.Duolingo is outrunning the market for at least two simple reasons. First, it's growing like a weed. Second, it's actually quite a profitable business. The end result ...

BEIJING, May 29, 2025 /PRNewswire/ -- Concord Healthcare Group Co., Ltd. ("Concord Healthcare"), a subsidiary of Concord Medical Services Holdings Limited (the "Company") (NYSE: CCM), which subsidiary is listed on the Main Board of The Stock Exchange of Hong Kong Limited (the "HKSE") under the stock code 2453.HK, announced that Concord Healthcare had made important progress in precise tumor diagnosis and treatment technology. Concord Healthcare's self-developed large language model ("LLM") in the vertical f ...

Cerence (CRNC) FY 2025 Conference May 29, 2025 10:50 AM ET Speaker0 Morning, everybody. We're continuing on with our next session. Very pleased to have Cerence with us at the conference for a fireside chat. Lots of very interesting topics to talk about in in automotive, AI. From the company, we're very pleased to have Tony Rodriguez, executive vice president and CFO, of of the company. We'll keep it to a fireside chat session. If you do have any questions in the room, feel free to raise your hand. We'll get ...

JFrog (FROG) FY 2025 Conference May 28, 2025 11:25 AM ET Speaker0 Okay, thank you. Everybody, I'm Andrew Sherman, software analyst at TD Cowen. Pleased to have Jeff Schreiner, Head of IR at JFrog. Thank you for being here. Speaker1 Thank you for having us. Speaker0 And a quick mention for Xdl II. We appreciate your vote if you think we've earned it. Thank you very much. So it's been a busy past year for JFrog. Let's just recap the quarter, which was a good one, and some new interesting stuff going on. So th ...