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Large Language Models (LLMs) exhibit strong reasoning capabilities in complex tasks. However, they still struggle with hallucinations and factual errors in knowledge-intensive scenarios like knowledge graph question answering (KGQA). We…

Computation and Language · Computer Science 2025-11-12 Songze Li , Zhiqiang Liu , Zhengke Gui , Huajun Chen , Wen Zhang

Answering complex first-order logic (FOL) queries on knowledge graphs is essential for reasoning. Symbolic methods offer interpretability but struggle with incomplete graphs, while neural approaches generalize better but lack transparency.…

Artificial Intelligence · Computer Science 2026-03-18 Lihui Liu

One of the challenges in information retrieval is providing accurate answers to a user's question often expressed as uncertainty words. Most answers are based on a Syntactic approach rather than a Semantic analysis of the query. In this…

Information Retrieval · Computer Science 2017-10-31 Monika Rani , Maybin K. Muyeba , O. P. Vyas

Federated learning (FL) is a decentralized approach, enabling multiple participants to collaboratively train a model while ensuring the protection of data privacy. The transmission of updates from numerous edge clusters to the server…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-08-20 Haowei Li , Weiying Xie , Hangyu Ye , Jitao Ma , Shuran Ma , Yunsong Li

The increasing rise in artificial intelligence has made the use of imprecise language in computer programs like ChatGPT more prominent. Fuzzy logic addresses this form of imprecise language by introducing the concept of fuzzy sets, where…

Databases · Computer Science 2023-11-08 Kevin Min , Hayden Jananthan , Jeremy Kepner

Question answering over knowledge base (KB-QA) has recently become a popular research topic in NLP. One popular way to solve the KB-QA problem is to make use of a pipeline of several NLP modules, including entity discovery and linking (EDL)…

Computation and Language · Computer Science 2019-04-01 Dekun Wu , Nana Nosirova , Hui Jiang , Mingbin Xu

Complex logical query answering (CLQA) is a challenging task that involves finding answer entities for complex logical queries over incomplete knowledge graphs (KGs). Previous research has explored the use of pre-trained knowledge graph…

Artificial Intelligence · Computer Science 2024-10-10 Changyi Xiao , Yixin Cao

Logical query answering over Knowledge Graphs (KGs) is a fundamental yet complex task. A promising approach to achieve this is to embed queries and entities jointly into the same embedding space. Research along this line suggests that using…

Information Retrieval · Computer Science 2024-03-29 Yuhan Wu , Yuanyuan Xu , Wenjie Zhang , Xiwei Xu , Ying Zhang

The generalization problem on KBQA has drawn considerable attention. Existing research suffers from the generalization issue brought by the entanglement in the coarse-grained modeling of the logical expression, or inexecutability issues due…

Artificial Intelligence · Computer Science 2023-06-27 Lingxi Zhang , Jing Zhang , Yanling Wang , Shulin Cao , Xinmei Huang , Cuiping Li , Hong Chen , Juanzi Li

Large language models (LLMs) have demonstrated impressive reasoning abilities in complex tasks. However, they lack up-to-date knowledge and experience hallucinations during reasoning, which can lead to incorrect reasoning processes and…

Computation and Language · Computer Science 2024-02-27 Linhao Luo , Yuan-Fang Li , Gholamreza Haffari , Shirui Pan

Fuzzy reasoning is a very productive research field that during the last years has provided a number of theoretical approaches and practical implementation prototypes. Nevertheless, the classical implementations, like Fril, are not adapted…

Programming Languages · Computer Science 2009-03-13 Victor Pablos Ceruelo , Susana Munoz-Hernandez , Hannes Strass

Integrating structured knowledge from Knowledge Graphs (KGs) into Large Language Models (LLMs) remains a key challenge for symbolic reasoning. Existing methods mainly rely on prompt engineering or fine-tuning, which lose structural fidelity…

Machine Learning · Computer Science 2025-05-13 Erica Coppolillo

Users may demand recommendations with highly personalized requirements involving logical operations, e.g., the intersection of two requirements, where such requirements naturally form structured logical queries on knowledge graphs (KGs). To…

Artificial Intelligence · Computer Science 2023-04-25 Zhenwei Tang , Griffin Floto , Armin Toroghi , Shichao Pei , Xiangliang Zhang , Scott Sanner

Large language models (LLMs) have demonstrated remarkable performance on question-answering (QA) tasks because of their superior capabilities in natural language understanding and generation. However, LLM-based QA struggles with complex QA…

Computation and Language · Computer Science 2025-09-23 Chuangtao Ma , Yongrui Chen , Tianxing Wu , Arijit Khan , Haofen Wang

To answer complex queries on knowledge graphs, logical reasoning over incomplete knowledge is required due to the open-world assumption. Learning-based methods are essential because they are capable of generalizing over unobserved…

Artificial Intelligence · Computer Science 2023-07-27 Hang Yin , Zihao Wang , Weizhi Fei , Yangqiu Song

Fuzzy rule-based systems have been mostly used in interpretable decision-making because of their interpretable linguistic rules. However, interpretability requires both sensible linguistic partitions and small rule-base sizes, which are not…

Machine Learning · Computer Science 2025-12-15 Javier Fumanal-Idocin , Raquel Fernandez-Peralta , Javier Andreu-Perez

Answering complex logical queries on incomplete knowledge graphs is a challenging task, and has been widely studied. Embedding-based methods require training on complex queries, and cannot generalize well to out-of-distribution query…

Machine Learning · Computer Science 2023-06-08 Yushi Bai , Xin Lv , Juanzi Li , Lei Hou

Knowledge graph (KG) inference aims to address the natural incompleteness of KGs, including rule learning-based and KG embedding (KGE) models. However, the rule learning-based models suffer from low efficiency and generalization while KGE…

Artificial Intelligence · Computer Science 2022-08-23 Guanglin Niu , Bo Li , Yongfei Zhang , Shiliang Pu

The AI community is increasingly focused on merging logic with deep learning to create Neuro-Symbolic (NeSy) paradigms and assist neural approaches with symbolic knowledge. A significant trend in the literature involves integrating axioms…

Artificial Intelligence · Computer Science 2023-06-27 Samy Badreddine , Luciano Serafini , Michael Spranger

The problem of minimizing fuzzy interpretations in fuzzy description logics (FDLs) is important both theoretically and practically. For instance, fuzzy or weighted social networks can be modeled as fuzzy interpretations, where individuals…

Data Structures and Algorithms · Computer Science 2026-02-05 Linh Anh Nguyen