引导式测验 · 硬 等级
XLNet 排列建模测验
检查排列因式分解、双流注意力、Transformer-XL 重现,以及基准声明如何依赖于可比设置。
问题 1 的 8
XLNet 使用什么预训练目标?
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- XLNet 使用什么预训练目标?
- 排列语言建模
- 掩码语言建模
- 替换令牌检测
- 下一句话预测
- XLNet 是专门为了解决哪些 BERT 弱点而设计的?
- BERT 太小了
- [MASK] 令牌导致预训练/微调不匹配,并假定屏蔽令牌独立
- BERT 无法处理短句子
- BERT 缺乏位置编码
- XLNet的两流self-attention分离了什么?
- 编码器和解码器层
- 训练和推理图
- 内容流和查询流
- 标记和句子嵌入
- XLNet 是否会物理地打乱句子中的单词?
- 是的,它随机地重新排序实际的令牌
- 是的,但仅限于微调期间
- 不,它根本不会改变任何顺序
- 不,它使用注意掩模排列因式分解顺序,同时保持位置
- 哪种架构作为 XLNet 的远程上下文骨干网?
- 变形金刚-XL
- 长短期记忆网络
- 原版香草变压器
- 卷积网络
- How does XLNet combine bidirectional context with autoregressive prediction?
- It predicts all tokens independently with no attention mask
- It predicts in sampled factorization orders without inserting a [MASK] input token, using attention masks
- It physically shuffles the sentence before every prediction
- It replaces autoregressive prediction with a denoising autoencoder
- For a token sequence A B C, suppose a sampled factorization order predicts C before A and B. What context is available when predicting C?
- The tokens A and B must always be provided first
- Only the next sentence is available
- No earlier tokens in that sampled order, although C remains at its original input position
- The input sequence is physically reordered to C A B
- How does XLNet prevent the target token from leaking into its own prediction query?
- It removes the target from the entire training sequence
- It uses the target’s label as an input embedding
- It replaces the token with a [MASK] symbol
- The query stream represents the target position without its token content