metadata

language:
  - en
license: cc-by-4.0
size_categories:
  - 1K<n<10K
task_categories:
  - question-answering
pretty_name: MoreHopQA
tags:
  - multi-hop
configs:
  - config_name: verified
    data_files:
      - split: test
        path: verified/test-*
    default: true
  - config_name: unverified
    data_files: data/without_human_verification.json
dataset_info:
  config_name: verified
  features:
    - name: question
      dtype: string
    - name: context
      sequence:
        - name: title
          dtype: string
        - name: paragraphs
          sequence: string
    - name: answer
      dtype: string
    - name: previous_question
      dtype: string
    - name: previous_answer
      dtype: string
    - name: question_decomposition
      sequence:
        - name: sub_id
          dtype: string
        - name: question
          dtype: string
        - name: answer
          dtype: string
        - name: paragraph_support_title
          dtype: string
    - name: question_on_last_hop
      dtype: string
    - name: answer_type
      dtype: string
    - name: previous_answer_type
      dtype: string
    - name: no_of_hops
      dtype: int32
    - name: reasoning_type
      dtype: string
  splits:
    - name: test
      num_bytes: 839113
      num_examples: 1118
  download_size: 201825
  dataset_size: 839113

MoreHopQA: More Than Multi-hop Reasoning

We propose a new multi-hop dataset, MoreHopQA, which shifts from extractive to generative answers. Our dataset is created by utilizing three existing multi-hop datasets: HotpotQA, 2Wiki-MultihopQA, and MuSiQue. Instead of relying solely on factual reasoning, we enhance the existing multi-hop questions by adding another layer of questioning.

Dataset Details

Dataset Description

Our dataset is created through a semi-automated process, resulting in a dataset with 1118 samples that have undergone human verification.
For each sample, we share our 6 evaluation cases, including the new question, the original question, all the necessary subquestions, and a composite question from the second entity to the final answer (case 3 above). We share both a version where each question was verified by a human, and a larger, solely automatically generated version ("unverified"). We recommend to primarily use the human-verified version.

Curated by: Aizawa Lab, National Institute of Informatics (NII), Tokyo, Japan
Language(s) (NLP): English
License: The MorehopQA dataset is licensed under CC BY 4.0

Dataset Sources

Repository: github.com/Alab-NII/morehopqa
Paper: arxiv.org/abs/2406.13397

Uses

We provide our dataset to the community and hope that other researchers find it a useful tool to analyze and improve the multi-hop reasoning capabilities of their models. MoreHopQA is designed to challenge systems with complex queries requiring synthesis from multiple sources, thereby advancing the field in understanding and generating nuanced, context-rich responses. Additionally, we aim for this dataset to spur further innovation in reasoning models, helping to bridge the gap between human-like understanding and AI capabilities.

Dataset Structure

We share both a version where each question was verified by a human, and a larger, solely automatically generated version ("unverified"). We recommend to primarily use the human-verified version, which is also the default option when loading the dataset.

Each sample in the dataset contains the following fields:

question: Our new multi-hop question with added reasoning (case 1 above)
answer: The answer to the last hop (case 1, 3 and 4 above)
context: Relevant context information to answer the previous question (relevant for all cases except case 4)
previous_question: The previous 2-hop question from the original dataset (case 2 above)
previous_answer: The answer to the previous 2-hop question (case 2 and 5 above)
question_decomposition: Each question of the reasoning chain. List of entries with keys "sub_id" (position in the chain), "question", "answer", "paragraph_support_title" (relevant context paragraph). (sub_id 1 → case 6; sub_id 2 → case 5; sub_id 3 → case 4)
question_on_last_hop: Question for case 3 above
answer_type: Type of the expected answer
previous_answer_type: Type of the answer to the previous 2-hop question
no_of_hops: Number of extra hops to answer the additional reasoning question (might be more than one for more complicated tasks)
reasoning_type: Might contain "Symbolic", "Arithmetic", "Commonsense"; depending on which kind of reasoning is required for the additional reasoning

Dataset Creation

Source Data

Our dataset is created by utilizing three existing multi-hop datasets: HotpotQA, 2Wiki-MultihopQA, and MuSiQue

Citation

If you find this dataset helpful, please consider citing our paper

BibTeX:

@misc{schnitzler2024morehopqa,
      title={MoreHopQA: More Than Multi-hop Reasoning}, 
      author={Julian Schnitzler and Xanh Ho and Jiahao Huang and Florian Boudin and Saku Sugawara and Akiko Aizawa},
      year={2024},
      eprint={2406.13397},
      archivePrefix={arXiv}
}