引导式测验 · 中等 等级

问答测验

审查提取式和生成式 QA、外部证据、检索基础、答案边界、弃权、重叠评估和释义测试。

相关引导路径问答
问题 1 的 8

提取式问答系统有什么作用？

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  1. 提取式问答系统有什么作用？
    • 选择回答问题的段落中的确切文本范围
    • 用自己的话写出全新的答案
    • 将问题翻译成另一种语言
    • 按受欢迎程度对网页进行排名
  2. What evidence-access distinction separates closed-book QA from an open-book QA setting?
    • Open-book systems are forbidden to read documents
    • Closed-book systems must always be more accurate
    • Closed-book uses model parameters without external lookup; open-book can use supplied or retrieved documents
    • Open-book systems cannot include a language model
  3. How can retrieval-augmented generation support a QA answer?
    • By guaranteeing every retrieved passage is correct
    • By eliminating the need to interpret any passage
    • By automatically proving every output claim true
    • By providing retrieved passages as evidence for generation
  4. Which boundary scores can an extractive QA head produce when selecting an answer span?
    • Only a translation score for French output
    • Scores for possible answer-start and answer-end positions
    • Only a grammatical noun-or-verb label
    • Only the alphabetical rank of each word
  5. 当文章缺乏答案时，设计良好的问答系统的标志是什么？
    • 无论如何，它发明了一个听起来合理的答案
    • 它返回整个段落
    • 它认识到这个问题无法回答并这样说
    • 它崩溃了
  6. How does generative QA differ from requiring an extractive source span?
    • It produces answer text rather than requiring an exact span from the passage
    • It is restricted to one yes-or-no label in every task
    • It never outputs any words present in a source
    • It must output only a highlighted passage boundary
  7. In SQuAD-style QA evaluation, what can token-overlap F1 provide that exact match alone does not?
    • Proof that every claimed fact is true
    • Partial credit for answer words overlapping a reference
    • A guarantee that no answer was copied
    • The measured power usage of a server
  8. Why evaluate a QA system on paraphrased questions that preserve the intended meaning?
    • To guarantee that every new paraphrase has a different answer
    • To remove all passage evidence from every evaluation
    • To replace answer quality with filename length
    • To test sensitivity to changes in question wording