Do LLMs, SLMs and Large Vision Models in AI know when to stop?

Do LLMs, SLMs and Large Vision Models in AI know when to stop?

AI LLMs, LVMs and SLMs are great at predicting the next word or image in a sequence. However humans program the stopping criteria of when to stop. This is arbitrary and we can over engineer or under engineer a scene or a poem or your term paper.

  1. LLMs and Vector Representations: LLMs are somewhat of a "library of vectors of meaning," but they do use vector representations internally. LLMs process and generate text by working with high-dimensional vector representations of words and phrases, often called embeddings
  2. Role of Transformers: Transformers are indeed a key architecture used in many modern LLMs. They help interpret context by using mechanisms like self-attention to understand relationships between different parts of the input text
  3. Vector Databases and LLMs: Vector databases are often used in conjunction with LLMs, but they are separate components
  4. Context Interpretation: LLMs, particularly those based on transformer architectures, are designed to interpret context within the text they process.This context interpretation happens through the model's learned parameters and attention mechanisms, not through a static "library of vectors"
  5. Embeddings and Meaning: While LLMs do work with vector representations that capture aspects of meaning, calling them a "library of vectors of meaning" is an oversimplification. The model's understanding of meaning comes from its training on vast amounts of text data and its ability to process this information through its neural network architecture


Knowing when to stop in LLMs:

  1. LLM Behavior: LLMs don't inherently "know" when to stop generating text in the same way humans do. They are designed to continue generating text based on the input and their training patterns.
  2. Stop Tokens: LLMs can be programmed to stop generating when they encounter specific "stop tokens" or sequences. These are typically defined by the developers or users of the model.
  3. Context Length: LLMs have a maximum context length (e.g., 2048 tokens for GPT-3).They will naturally stop generating once this limit is reached.
  4. Probabilistic Nature: LLMs generate text based on probabilities learned during training. They don't have a built-in concept of narrative completion or conversational turn-taking.
  5. The "Art" of Stopping: The phrase "when to stop is an art" likely refers to the challenge of determining appropriate stopping points in various applications of LLMs. This could involve: a) Designing prompts that naturally lead to concise responses. b) Implementing post-processing techniques to trim generated text. c) Fine-tuning models to better recognize natural ending points.
  6. Human Intervention: In many applications, human oversight is still necessary to determine when an LLM's output is sufficient or complete.
  7. Application-Specific Strategies: Different applications may require different strategies for managing output length and completeness. For example, chatbots might use turn-taking cues, while content generation might use topic exhaustion signals.
  8. Ongoing Research: Improving LLMs' ability to self-regulate output length and completeness is an active area of research in AI and NLP.


Coaching LLMs and LVMs to Stop

  1. Agentic frameworks can potentially be used to implement more sophisticated stopping mechanisms for LLMs based on specific use cases. This could involve creating specialized agents responsible for monitoring and controlling the output length and relevance.
  2. Use Case-Specific Approaches: Different use cases may require different stopping criteria. Agentic frameworks allow for customization based on specific needs
  3. Feedback Loops and Self-Reflection: Agentic frameworks often incorporate feedback loops and self-reflection mechanisms
  4. Multi-Agent Collaboration: A system could be designed where one agent generates content while another evaluates and decides when to stop
  5. Tool Integration: Agentic frameworks allow for integration with external tools and APIs
  6. Continuous Learning and Adaptation: Agentic AI systems can learn and adapt over time
  7. Safety and Governance: Agentic frameworks often include safety features and governance tools
  8. Challenges: Implementing effective stopping mechanisms requires careful design and testing. There's a need to balance between providing complete information and avoiding unnecessary verbosity. Different use cases may require significantly different stopping strategies, necessitating flexible and adaptable systems.

Conclusion:

While LLMs don't inherently "know" when to stop in a human-like way, managing their output effectively is indeed an art that involves a combination of technical strategies, careful prompt engineering, and often human oversight. The challenge lies in balancing the model's generative capabilities with the need for coherent, appropriately sized outputs across various applications. LLMs are sophisticated neural networks that process and generate text based on learned patterns and relationships in language. Vector databases, while often used alongside LLMs, are separate tools that can enhance LLM capabilities by efficiently storing and retrieving relevant vector embeddings. Agentic frameworks to coach LLMs on when to stop based on use cases is a promising approach. It allows for more nuanced, context-aware, and adaptable stopping mechanisms compared to simple token limits or static stop sequences.

Andy Burns

Principal Technical Project Manager, Lean-Agile Portfolio Coach, PMP, PMI-ACP, DAC, SPC, RTE

4 个月

No. The models have 1,000 eyes. There must be a Human in the Loop HitL to know where to look.

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