Chiosa
Research collection

Machine Learning

Research on Machine Learning: explanations, evidence, limitations and connections between papers.

30 results

  1. Guided lessonMachine Learning

    What Evidence Supports a Model Choice?

    A model can look like the better choice because a test set misses the conditions that expose its weakness. A household assistant poses a related problem: success on isolated calls may not show what happens when the whole system controls devices. The studies suggest matching evidence to the decision. Better test coverage and live cases can assess particular choices; statistics drawn from model weights can help rank candidates earlier. Each result reaches only as far as the outcome and setting it examined.

  2. Guided lessonMachine Learning

    Where Long-Context Inference Spends Work and Memory

    A long document can strain a model in several ways. Answering a new question may require inspecting many earlier tokens; keeping many document caches consumes storage; and some models repeatedly move a summary of earlier tokens through memory. The studies suggest changing the operation under pressure. One changes attention retrieval, one chooses which cache entries survive, and one delays recurrent-state writes. Their evidence concerns different costs and workloads, so each result needs to be read within its own tested conditions.

  3. Guided lessonMachine Learning

    Reaching the Goal, Responding in Time, and Staying Safe

    A robot can complete a task and still respond too late to a moving object. It can also reach a destination after a collision. Saying that it “succeeded” leaves out what was measured and what happened while it decided. The selected studies offer a bounded answer: adapting computation was checked against task completion, rewarding varied successful behavior was checked under shifted simulation conditions, and a moving-world test separately counted safe arrivals. Each claim belongs to its own test.

  4. Guided lessonMachine Learning

    What Else Changes When You Fix a Model?

    A model can learn from a new corpus while losing old behavior, receive privacy-protecting noise while losing task accuracy, or refuse a harmful prompt while also refusing a harmless neighbor. Success at the intended target leaves a nearby question unanswered. The studies suggest a bounded way to investigate: locate what changes, choose a comparator, and inspect the closest relevant boundary. That boundary is different for training updates, privacy calibration, and prompt repair. Neither a plausible mechanism nor a reassuring broad score settles the other studies’ questions.