Pithy Cyborg | AI News Made Simple
Pithy Cyborg | AI News Made Simple
Chunk overlap is added to RAG pipelines to prevent answers from being split across chunk boundaries. The logic is sound. The implementation often produces the opposite effect: duplicate or …
Continue Reading about Can Chunk Overlap Secretly Hurt Retrieval Quality Instead of Helping It? →
Retrieval and generation are two separate steps with two separate failure modes. Retrieving the right document means your retrieval system is working. Producing the wrong answer from that document …
Continue Reading about Why Does My RAG App Return the Right Document but the Wrong Answer? →
Chain-of-thought prompting works by asking the model to reason step by step before producing an answer. For large models, this reliably improves performance on multi-step reasoning tasks. For small …
Continue Reading about Why Do Chain-of-Thought Prompts Sometimes Make Small Models Worse? →
Yes, partially and inconsistently. A system prompt can constrain tone, restrict topics, set a persona, and bias the model's behavior throughout the conversation. It cannot guarantee that every user …
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Temperature controls how the model samples from its probability distribution over possible next tokens. Low temperature makes the model pick high-probability tokens consistently. High temperature …
Continue Reading about Why Does the Same Prompt Get Smarter Results at Temperature 0.2 Than 0.8? →
Yes, and this happens constantly. A language model can correctly state that antibiotics do not work on viruses without having any functional understanding of bacterial cell walls, viral replication, …
Continue Reading about Can an AI Model Know a Fact Without Knowing Why It Is True? →
