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Knowledge tracing (KT) plays a crucial role in computer-aided education and intelligent tutoring systems, aiming to assess students' knowledge proficiency by predicting their future performance on new questions based on their past response…

Computers and Society · Computer Science 2024-06-03 Jiajun Cui , Minghe Yu , Bo Jiang , Aimin Zhou , Jianyong Wang , Wei Zhang

Answering questions that require multi-hop reasoning at web-scale necessitates retrieving multiple evidence documents, one of which often has little lexical or semantic relationship to the question. This paper introduces a new graph-based…

Computation and Language · Computer Science 2020-02-17 Akari Asai , Kazuma Hashimoto , Hannaneh Hajishirzi , Richard Socher , Caiming Xiong

Scaling Visual Question Answering (VQA) to the open-domain and multi-hop nature of web searches, requires fundamental advances in visual representation learning, knowledge aggregation, and language generation. In this work, we introduce…

Computation and Language · Computer Science 2022-03-29 Yingshan Chang , Mridu Narang , Hisami Suzuki , Guihong Cao , Jianfeng Gao , Yonatan Bisk

Multi-hop reasoning requires aggregating multiple documents to answer a complex question. Existing methods usually decompose the multi-hop question into simpler single-hop questions to solve the problem for illustrating the explainable…

Computation and Language · Computer Science 2022-08-23 Siyuan Wang , Zhongyu Wei , Zhihao Fan , Qi Zhang , Xuanjing Huang

When answering a question, humans utilize the information available across different modalities to synthesize a consistent and complete chain of thought (CoT). This process is normally a black box in the case of deep learning models like…

Computation and Language · Computer Science 2022-10-18 Pan Lu , Swaroop Mishra , Tony Xia , Liang Qiu , Kai-Wei Chang , Song-Chun Zhu , Oyvind Tafjord , Peter Clark , Ashwin Kalyan

We study the Knowledge-Based visual question-answering problem, for which given a question, the models need to ground it into the visual modality to find the answer. Although many recent works use question-dependent captioners to verbalize…

Artificial Intelligence · Computer Science 2024-06-28 Elham J. Barezi , Parisa Kordjamshidi

Multi-hop question answering (QA) requires an information retrieval (IR) system that can find \emph{multiple} supporting evidence needed to answer the question, making the retrieval process very challenging. This paper introduces an IR…

Computation and Language · Computer Science 2019-09-18 Ameya Godbole , Dilip Kavarthapu , Rajarshi Das , Zhiyu Gong , Abhishek Singhal , Hamed Zamani , Mo Yu , Tian Gao , Xiaoxiao Guo , Manzil Zaheer , Andrew McCallum

Large Language Models (LLMs) excel in many natural language processing tasks but often exhibit factual inconsistencies in knowledge-intensive settings. Integrating external knowledge resources, particularly knowledge graphs (KGs), provides…

Computation and Language · Computer Science 2026-02-17 Shuai Wang , Yinan Yu

Understanding complex biomolecular mechanisms requires multi-step reasoning across molecular interactions, signaling cascades, and metabolic pathways. While large language models(LLMs) show promise in such tasks, their application to…

Artificial Intelligence · Computer Science 2025-11-12 Tianwen Lyu , Xiang Zhuang , Keyan Ding , Xinzhe Cao , Lei Liang , Wei Zhao , Qiang Zhang , Huajun Chen

Rule-based models are attractive for various tasks because they inherently lead to interpretable and explainable decisions and can easily incorporate prior knowledge. However, such systems are difficult to apply to problems involving…

Computation and Language · Computer Science 2019-06-17 Leon Weber , Pasquale Minervini , Jannes Münchmeyer , Ulf Leser , Tim Rocktäschel

Multi-hop Knowledge Base Question Answering(KBQA) aims to find the answer entity in a knowledge graph (KG), which requires multiple steps of reasoning. Existing retrieval-based approaches solve this task by concentrating on the specific…

Computation and Language · Computer Science 2023-12-20 Haowei Du , Quzhe Huang , Chen Li , Chen Zhang , Yang Li , Dongyan Zhao

This paper presents a novel framework for reconstructing multi-hop explanations in science Question Answering (QA). While existing approaches for multi-hop reasoning build explanations considering each question in isolation, we propose a…

Artificial Intelligence · Computer Science 2021-02-11 Marco Valentino , Mokanarangan Thayaparan , André Freitas

Knowledge Tracing (KT) models students' evolving knowledge states to predict future performance, serving as a foundation for personalized education. While traditional deep learning models achieve high accuracy, they often lack…

Computation and Language · Computer Science 2026-03-25 Runze Li , Kedi Chen , Guwei Feng , Mo Yu , Jun Wang , Wei Zhang

Knowledge tracing (KT) is a crucial technique to predict students' future performance by observing their historical learning processes. Due to the powerful representation ability of deep neural networks, remarkable progress has been made by…

Machine Learning · Computer Science 2023-03-17 Jiahao Chen , Zitao Liu , Shuyan Huang , Qiongqiong Liu , Weiqi Luo

Question answering over knowledge bases (KBQA) has become a popular approach to help users extract information from knowledge bases. Although several systems exist, choosing one suitable for a particular application scenario is difficult.…

Computation and Language · Computer Science 2022-11-16 Khiem Vinh Tran , Hao Phu Phan , Khang Nguyen Duc Quach , Ngan Luu-Thuy Nguyen , Jun Jo , Thanh Tam Nguyen

This paper presents Diff-Explainer, the first hybrid framework for explainable multi-hop inference that integrates explicit constraints with neural architectures through differentiable convex optimization. Specifically, Diff-Explainer…

Computation and Language · Computer Science 2022-06-23 Mokanarangan Thayaparan , Marco Valentino , Deborah Ferreira , Julia Rozanova , André Freitas

With the recent surge in personalized learning, Intelligent Tutoring Systems (ITS) that can accurately track students' individual knowledge states and provide tailored learning paths based on this information are in demand as an essential…

Artificial Intelligence · Computer Science 2025-12-09 Wonbeen Lee , Channyoung Lee , Junho Sohn , Hansam Cho

Retrieval-augmented generation (RAG) systems have made significant progress in solving complex multi-hop question answering (QA) tasks in the English scenario. However, RAG systems inevitably face the application scenario of retrieving…

Computation and Language · Computer Science 2026-03-20 Yilin Wang , Yuchun Fan , Jiaoyang Li , Ziming Zhu , Yongyu Mu , Qiaozhi He , Tong Xiao , Jingbo Zhu

This paper proposes a group deliberation oriented multi-agent conversational model to address the limitations of single large language models in complex reasoning tasks. The model adopts a three-level role division architecture consisting…

Artificial Intelligence · Computer Science 2026-01-01 Zheyu Shi , Dong Qiu , Shanlong Yu

Knowledge-based question answering (KBQA) is a key task in NLP research, and also an approach to access the web data and knowledge, which requires exploiting knowledge graphs (KGs) for reasoning. In the literature, one promising solution…

Computation and Language · Computer Science 2024-03-18 Xin Lin , Tianhuang Su , Zhenya Huang , Shangzi Xue , Haifeng Liu , Enhong Chen