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Large Language Models (LLMs) often struggle with dynamically changing knowledge and handling unknown static information. Retrieval-Augmented Generation (RAG) is employed to tackle these challenges and has a significant impact on improving…

Computation and Language · Computer Science 2025-09-18 Zhen Zhang , Xinyu Wang , Yong Jiang , Zile Qiao , Zhuo Chen , Guangyu Li , Feiteng Mu , Mengting Hu , Pengjun Xie , Fei Huang

Equipping machines with comprehensive knowledge of the world's entities and their relationships has been a long-standing goal of AI. Over the last decade, large-scale knowledge bases, also known as knowledge graphs, have been automatically…

Artificial Intelligence · Computer Science 2021-12-07 Gerhard Weikum , Luna Dong , Simon Razniewski , Fabian Suchanek

In this paper, we explore the issue of inconsistency handling over prioritized knowledge bases (KBs), which consist of an ontology, a set of facts, and a priority relation between conflicting facts. In the database setting, a closely…

Logic in Computer Science · Computer Science 2026-05-27 Meghyn Bienvenu , Camille Bourgaux

Knowledge Base Question Answering (KBQA) aims to answer natural language questions over large-scale knowledge bases (KBs), which can be summarized into two crucial steps: knowledge retrieval and semantic parsing. However, three core…

Computation and Language · Computer Science 2024-10-31 Haoran Luo , Haihong E , Zichen Tang , Shiyao Peng , Yikai Guo , Wentai Zhang , Chenghao Ma , Guanting Dong , Meina Song , Wei Lin , Yifan Zhu , Luu Anh Tuan

Knowledge Base Question Answering (KBQA) aims to answer natural language questions with factual information such as entities and relations in KBs. However, traditional Pre-trained Language Models (PLMs) are directly pre-trained on…

Computation and Language · Computer Science 2023-08-29 Guanting Dong , Rumei Li , Sirui Wang , Yupeng Zhang , Yunsen Xian , Weiran Xu

Many AI applications rely on knowledge encoded in a locigal knowledge base (KB). The most essential benefit of such logical KBs is the opportunity to perform automatic reasoning which however requires a KB to meet some minimal quality…

Artificial Intelligence · Computer Science 2017-05-31 Patrick Rodler

The ability to understand and generate similes is an imperative step to realize human-level AI. However, there is still a considerable gap between machine intelligence and human cognition in similes, since deep models based on statistical…

Computation and Language · Computer Science 2022-12-13 Qianyu He , Xintao Wang , Jiaqing Liang , Yanghua Xiao

Knowledge base question answering (KBQA) aims to answer a question over a knowledge base (KB). Early studies mainly focused on answering simple questions over KBs and achieved great success. However, their performance on complex questions…

Computation and Language · Computer Science 2022-11-09 Yunshi Lan , Gaole He , Jinhao Jiang , Jing Jiang , Wayne Xin Zhao , Ji-Rong Wen

Knowledge Bases (KBs) contain a wealth of structured information about entities and predicates. This paper focuses on set-valued predicates, i.e., the relationship between an entity and a set of entities. In KBs, this information is often…

Databases · Computer Science 2020-03-27 Shrestha Ghosh , Simon Razniewski , Gerhard Weikum

Answering complex questions over knowledge bases (KB-QA) faces huge input data with billions of facts, involving millions of entities and thousands of predicates. For efficiency, QA systems first reduce the answer search space by…

Information Retrieval · Computer Science 2022-04-05 Philipp Christmann , Rishiraj Saha Roy , Gerhard Weikum

The complexity of the visual world creates significant challenges for comprehensive visual understanding. In spite of recent successes in visual recognition, today's vision systems would still struggle to deal with visual queries that…

Computer Vision and Pattern Recognition · Computer Science 2015-11-11 Yuke Zhu , Ce Zhang , Christopher Ré , Li Fei-Fei

Structured knowledge bases (KBs) are a foundation of many intelligent applications, yet are notoriously incomplete. Language models (LMs) have recently been proposed for unsupervised knowledge base completion (KBC), yet, despite encouraging…

Computation and Language · Computer Science 2023-03-21 Blerta Veseli , Sneha Singhania , Simon Razniewski , Gerhard Weikum

Knowledge bases (KBs) have gradually become a valuable asset for many AI applications. While many current KBs are quite large, they are widely acknowledged as incomplete, especially lacking facts of long-tail entities, e.g., less famous…

Information Retrieval · Computer Science 2020-02-20 Ermei Cao , Difeng Wang , Jiacheng Huang , Wei Hu

With the ever-increasing cases of hate spread on social media platforms, it is critical to design abuse detection mechanisms to proactively avoid and control such incidents. While there exist methods for hate speech detection, they…

Computation and Language · Computer Science 2020-01-17 Pinkesh Badjatiya , Manish Gupta , Vasudeva Varma

Knowledge bases (KBs) store rich yet heterogeneous entities and facts. Entity resolution (ER) aims to identify entities in KBs which refer to the same real-world object. Recent studies have shown significant benefits of involving humans in…

Databases · Computer Science 2020-02-24 Jiacheng Huang , Wei Hu , Zhifeng Bao , Yuzhong Qu

Knowledge Tracing (KT) is a critical technique for modeling student knowledge to support personalized learning. However, most KT systems focus on binary correctness prediction and cannot diagnose the underlying conceptual misunderstandings…

Computation and Language · Computer Science 2026-03-26 Yu-Chen Kang , Yu-Chien Tang , An-Zi Yen

Knowledge base construction (KBC) is the process of populating a knowledge base, i.e., a relational database together with inference rules, with information extracted from documents and structured sources. KBC blurs the distinction between…

Databases · Computer Science 2014-09-19 Christopher Ré , Amir Abbas Sadeghian , Zifei Shan , Jaeho Shin , Feiran Wang , Sen Wu , Ce Zhang

Codifying commonsense knowledge in machines is a longstanding goal of artificial intelligence. Recently, much progress toward this goal has been made with automatic knowledge base (KB) construction techniques. However, such techniques focus…

Artificial Intelligence · Computer Science 2021-09-13 Tara Safavi , Jing Zhu , Danai Koutra

Knowledge Bases (KBs) find applications in many knowledge-intensive tasks and, most notably, in information retrieval. Wikidata is one of the largest public general-purpose KBs. Yet, its collaborative nature has led to a convoluted schema…

Artificial Intelligence · Computer Science 2024-04-11 Fabian Suchanek , Mehwish Alam , Thomas Bonald , Lihu Chen , Pierre-Henri Paris , Jules Soria

Knowledge base question answering (KBQA) aims to answer a question over a knowledge base (KB). Recently, a large number of studies focus on semantically or syntactically complicated questions. In this paper, we elaborately summarize the…

Computation and Language · Computer Science 2021-05-26 Yunshi Lan , Gaole He , Jinhao Jiang , Jing Jiang , Wayne Xin Zhao , Ji-Rong Wen