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27亿美元天价回归,谷歌最贵“叛徒”、Transformer作者揭秘AGI下一步
3 6 Ke· 2025-09-22 08:48
Core Insights - The main focus of the article is on the hardware requirements for large language models (LLMs) as discussed by Noam Shazeer at the Hot Chips 2025 conference, emphasizing the need for increased computational power, memory capacity, and network bandwidth to enhance AI performance [1][5][9]. Group 1: Hardware Requirements for LLMs - LLMs require more computational power, specifically measured in FLOPS, to improve performance and handle larger models [23]. - Increased memory capacity and bandwidth are crucial, as insufficient bandwidth can limit model flexibility and performance [24][26]. - Network bandwidth is often overlooked but is essential for efficient data transfer between chips during training and inference [27][28]. Group 2: Design Considerations - Low precision computing is beneficial for LLMs, allowing for more FLOPS without significantly impacting model performance [30][32]. - Determinism is vital for reproducibility in machine learning experiments, as inconsistent results can hinder debugging and development [35][39]. - Addressing issues of overflow and precision loss in low precision calculations is necessary to maintain stability in model training [40]. Group 3: Future of AI and Hardware - The evolution of AI will continue to progress even if hardware advancements stall, driven by software innovations [42]. - The potential for achieving Artificial General Intelligence (AGI) remains, contingent on the ability to leverage existing hardware effectively [42][44]. - The article highlights the importance of creating a supportive environment for individuals as AI transforms job landscapes, emphasizing the need for societal adaptation to technological changes [56].
Mamba一作预告新架构!长文论述Transformer≠最终解法
量子位· 2025-07-09 04:57
Core Viewpoint - The article discusses the trade-offs between two mainstream sequence models: State Space Models (SSMs) and Transformer models, highlighting the strengths and weaknesses of each approach [1][3]. Summary by Sections Introduction to Mamba and SSMs - Mamba is a typical SSM that builds on a modern structured SSM suitable for deep learning, outperforming similarly sized Transformers in language tasks [2]. - The author consolidates insights from previous talks into a comprehensive article, hinting at a significant upcoming advancement in architecture [3][4]. Attention Mechanism and Its Limitations - The article challenges the common belief that the high computational cost of models like ChatGPT is solely due to the quadratic complexity of the attention mechanism in Transformers [5][6]. - A new architecture is expected to be compatible with Transformers, suggesting a shift in understanding the limitations of attention mechanisms [7][8]. Comparison of SSMs and Transformers - SSMs are likened to the human brain, summarizing past information into a fixed-size hidden state, making them more efficient for processing long sequences [15][16]. - SSMs have advantages in handling unstructured data and exhibit linear computational costs with respect to sequence length, making them suitable for resource-constrained environments [16]. Key Elements of Mamba's Success - Mamba's effectiveness is attributed to three key factors: state size, state expressivity, and training efficiency [17][20]. - SSMs allow for larger hidden states, enhancing information storage compared to traditional RNNs [18]. - Mamba introduces selective SSMs to improve state expressivity, akin to the gating mechanisms in classic RNNs [19]. - Training efficiency is achieved through careful parameterization and parallel scanning algorithms [21]. Limitations of SSMs - SSMs lack precise recall and retrieval capabilities for past information, which is a strength of Transformer models [22]. Transformer Model Characteristics - Transformers function like a database, storing every piece of information in a KV cache, allowing for precise memory and token-level operations [23][25]. - They excel in processing well-defined tokenized data but suffer from high computational costs and dependency on high-quality data [26][27]. Tokenization Debate - The author argues against the necessity of tokenization, stating it contradicts the end-to-end learning principle of deep learning and complicates multilingual and multimodal applications [28][30]. - Evidence suggests that SSMs outperform Transformers on raw data, emphasizing Transformers' weaknesses with non-semantic token data [32]. Conclusion on SSMs vs. Transformers - Both SSMs and Transformers have their unique strengths and weaknesses, and a hybrid approach could yield better performance [33][35]. - Research indicates that a combination of SSM and attention layers could enhance model capabilities, with an optimal ratio of 3:1 to 10:1 [37]. - The future direction may involve developing models that can directly process raw data, leveraging the advantages of both architectures [40].
心智×算法 如何“共舞”(瞰前沿·人工智能如何改变科研范式)
Ren Min Ri Bao· 2025-06-13 21:43
Core Insights - The rapid development of artificial intelligence (AI) is significantly transforming scientific research methodologies, particularly in psychology, with an annual growth rate of 27.2% in AI-driven scientific publications from 2019 to 2023 [1] Group 1: AI and Psychology - The historical connection between psychology and AI is notable, with classical experiments like Pavlov's conditioning influencing key AI techniques such as reinforcement learning [2] - AI applications in daily life often reflect psychological principles, such as behavior reinforcement mechanisms used in e-commerce and social media platforms [2] - AI's ability to understand complex human behaviors is enhanced by cognitive psychology, leading to the development of attention mechanisms in AI models [2] Group 2: Data and Research Efficiency - AI enables researchers to access vast behavioral data streams from social media and wearable devices, significantly expanding the scope of psychological research [3] - The efficiency of psychological research is improved through AI technologies that can identify hidden signals of social anxiety and assess personality traits from textual data [3] - Emotion recognition technologies are being utilized in settings like nursing homes to identify loneliness and other psychological states, enhancing the assessment of mental health [3] Group 3: Innovations in Psychological Research - Psychological researchers are developing AI tools for self-help that enhance emotional understanding and interaction capabilities [5] - AI is being trained to recognize subtle psychological crisis signals, utilizing psychological models to improve the identification of distress [5] - The integration of AI and psychological theories is fostering a deeper understanding of human emotions and enhancing predictive capabilities in mental health [5] Group 4: Future Directions - The interplay between psychology and AI is expected to evolve, with psychological insights potentially improving AI's decision-making in complex environments [7] - AI's ability to generate experimental materials and simulate human interactions will contribute to advancing psychological research [7] - The relationship between humans and AI is prompting a reevaluation of emotional connections and ethical considerations in the context of AI's role in understanding human emotions [8]