Active Learning

Opening — Why this matters now LLM agents today are voracious readers and remarkably poor conversationalists in the epistemic sense. They browse, retrieve, summarize, and reason—yet almost never talk back to the knowledge ecosystem they depend on. This paper names the cost of that silence with refreshing precision: epistemic asymmetry. Agents consume knowledge, but do not reciprocate, verify, or negotiate truth with the world. ...

Why this matters now Reinforcement Learning from Human Feedback (RLHF) has become the de facto standard for aligning large language models with human values. Yet, the process remains painfully inefficient—annotators evaluate thousands of pairs, most of which offer little new information. As AI models scale, so does the human cost. The question is no longer can we align models, but can we afford to keep doing it this way? A recent paper from Politecnico di Milano proposes a pragmatic answer: inject Bayesian intelligence into the feedback loop. Their hybrid framework—Bayesian RLHF—blends the scalability of neural reinforcement learning with the data thriftiness of Bayesian optimization. The result: smarter questions, faster convergence, and fewer wasted clicks. ...