mlsanityData to 7 Oct 2026

Improving Question Answering over Incomplete KBs with Knowledge-Aware Reader

arXiv 1905.07098 ↗First posted 17 May 2019cs.CL cs.AIcited by 37

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Abstract (arXiv)

We propose a new end-to-end question answering model, which learns to aggregate answer evidence from an incomplete knowledge base (KB) and a set of retrieved text snippets. Under the assumptions that the structured KB is easier to query and the acquired knowledge can help the understanding of unstructured text, our model first accumulates knowledge of entities from a question-related KB subgraph; then reformulates the question in the latent space and reads the texts with the accumulated entity knowledge at hand. The evidence from KB and texts are finally aggregated to predict answers. On the widely-used KBQA benchmark WebQSP, our model achieves consistent improvements across settings with different extents of KB incompleteness.

Key facts. Cited by 37 papers in the map (data through 7 Oct 2026). First posted on arXiv 17 May 2019.

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Citing papers per year: 2021: 14; 2022: 9; 2023: 5; 2024: 3; 2025: 3; 2026: 3.

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  1. 2021Retrieval Augmentation Reduces Hallucination in Conversationcited by 691
  2. 2021QA-GNN: Reasoning with Language Models and Knowledge Graphs for Question Answeringcited by 386
  3. 2021A Survey on Complex Knowledge Base Question Answering: Methods, Challenges and Solutionscited by 77
  4. 2021KG-FiD: Infusing Knowledge Graph in Fusion-in-Decoder for Open-Domain Question Answeringcited by 66
  5. 2021Complex Knowledge Base Question Answering: A Surveycited by 52
  6. 2021TempoQR: Temporal Question Reasoning over Knowledge Graphscited by 26
  7. 2022Conversational Question Answering on Heterogeneous Sourcescited by 26
  8. 2021Geographic Question Answering: Challenges, Uniqueness, Classification, and Future Directionscited by 24
  9. 2023KnowledgeNavigator: Leveraging Large Language Models for Enhanced Reasoning over Knowledge Graphcited by 22
  10. 2021GNN is a Counter? Revisiting GNN for Question Answeringcited by 21
  11. 2021Will this Question be Answered? Question Filtering via Answer Model Distillation for Efficient Question Answeringcited by 19
  12. 2021UNIQORN: Unified Question Answering over RDF Knowledge Graphs and Natural Language Textcited by 17
25 more
  1. 2023AutoKG: Efficient Automated Knowledge Graph Generation for Language Modelscited by 17
  2. 2022ReaRev: Adaptive Reasoning for Question Answering over Knowledge Graphscited by 16
  3. 2022"John is 50 years old, can his son be 65?" Evaluating NLP Models' Understanding of Feasibilitycited by 15
  4. 2023Multi-Grained Multimodal Interaction Network for Entity Linkingcited by 12
  5. 2021Identify, Align, and Integrate: Matching Knowledge Graphs to Commonsense Reasoning Taskscited by 9
  6. 2022Elaboration-Generating Commonsense Question Answering at Scalecited by 9
  7. 2022MuGER2: Multi-Granularity Evidence Retrieval and Reasoning for Hybrid Question Answeringcited by 9
  8. 2023Pay More Attention to Relation Exploration for Knowledge Base Question Answeringcited by 7
  9. 2023NuTrea: Neural Tree Search for Context-guided Multi-hop KGQAcited by 7
  10. 2026Query-Aware Flow Diffusion for Graph-Based RAG with Retrieval Guaranteescited by 7
  11. 2022CBR-iKB: A Case-Based Reasoning Approach for Question Answering over Incomplete Knowledge Basescited by 6
  12. 2024Optimal Transport Guided Correlation Assignment for Multimodal Entity Linkingcited by 5
  13. 2025GraphRAFT: Retrieval Augmented Fine-Tuning for Knowledge Graphs on Graph Databasescited by 5
  14. 2024UniMEL: A Unified Framework for Multimodal Entity Linking with Large Language Modelscited by 4
  15. 2022Targeted Extraction of Temporal Facts from Textual Resources for Improved Temporal Question Answering over Knowledge Basescited by 3
  16. 2025KGMEL: Knowledge Graph-Enhanced Multimodal Entity Linkingcited by 3
  17. 2022Exploiting Hybrid Semantics of Relation Paths for Multi-hop Question Answering Over Knowledge Graphscited by 2
  18. 2024Multi-level Matching Network for Multimodal Entity Linkingcited by 2
  19. 2021Integrating Subgraph-aware Relation and DirectionReasoning for Question Answeringcited by 1
  20. 2026Multi-Perspective Evidence Synthesis and Reasoning for Unsupervised Multimodal Entity Linkingcited by 1
  21. 2021Understanding in Artificial Intelligencecited by 0
  22. 2021Metaknowledge Extraction Based on Multi-Modal Documentscited by 0
  23. 2022Knowledge Graph Quality Evaluation under Incomplete Informationcited by 0
  24. 2025Multi-level Mixture of Experts for Multimodal Entity Linkingcited by 0
  25. 2026MissDiag: Diagnostic Evaluation of Incomplete-Knowledge Robustness in KGQA and KG-RAGcited by 0