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Human-curated knowledge graphs provide critical supportive information to various natural language processing tasks, but these graphs are usually incomplete, urging auto-completion of them. Prevalent graph embedding approaches, e.g.,…

Computation and Language · Computer Science 2021-02-25 Bo Wang , Tao Shen , Guodong Long , Tianyi Zhou , Yi Chang

As generative models become powerful, concerns around transparency, accountability, and copyright violations have intensified. Understanding how specific training data contributes to a model's output is critical. We introduce a framework…

Artificial Intelligence · Computer Science 2025-12-03 Theodoros Aivalis , Iraklis A. Klampanos , Antonis Troumpoukis , Joemon M. Jose

The objective of knowledge graph embedding is to encode both entities and relations of knowledge graphs into continuous low-dimensional vector spaces. Previously, most works focused on symbolic representation of knowledge graph with…

Computation and Language · Computer Science 2016-12-14 Jiacheng Xu , Kan Chen , Xipeng Qiu , Xuanjing Huang

Knowledge graphs (KGs) have proven to be effective for high-quality recommendation, where the connectivities between users and items provide rich and complementary information to user-item interactions. Most existing methods, however, are…

Information Retrieval · Computer Science 2021-09-16 Xiao Sha , Zhu Sun , Jie Zhang

Assessing the degree of similarity of code fragments is crucial for ensuring software quality, but it remains challenging due to the need to capture the deeper semantic aspects of code. Traditional syntactic methods often fail to identify…

Information Retrieval · Computer Science 2025-04-14 Jorge Martinez-Gil

Recently decades have witnessed the empirical success of framing Knowledge Graph (KG) embeddings via language models. However, language model-based KG embeddings are usually deployed as static artifacts, making them difficult to modify…

Computation and Language · Computer Science 2023-12-29 Siyuan Cheng , Ningyu Zhang , Bozhong Tian , Xi Chen , Qingbing Liu , Huajun Chen

Knowledge graphs (KGs), which store an extensive number of relational facts (head, relation, tail), serve various applications. While many downstream tasks highly rely on the expressive modeling and predictive embedding of KGs, most of the…

Information Retrieval · Computer Science 2024-05-01 Zihao Li , Yuyi Ao , Jingrui He

Knowledge Graph Completion is a task of expanding the knowledge graph/base through estimating possible entities, or proper nouns, that can be connected using a set of predefined relations, or verb/predicates describing interconnections of…

Computation and Language · Computer Science 2021-01-25 Tong Chen , Sirou Zhu , Yiming Wen , Zhaomin Zheng

Knowledge graphs (KGs) can vary greatly from one domain to another. Therefore supervised approaches to both graph-to-text generation and text-to-graph knowledge extraction (semantic parsing) will always suffer from a shortage of…

Computation and Language · Computer Science 2020-11-18 Martin Schmitt , Sahand Sharifzadeh , Volker Tresp , Hinrich Schütze

Answering natural language questions on knowledge graphs (KGQA) remains a great challenge in terms of understanding complex questions via multi-hop reasoning. Previous efforts usually exploit large-scale entity-related text corpora or…

Computation and Language · Computer Science 2022-09-05 Zile Qiao , Wei Ye , Tong Zhang , Tong Mo , Weiping Li , Shikun Zhang

In this paper, we are interested in developing semantic parsers which understand natural language questions embedded in a conversation with a user and ground them to formal queries over definitions in a general purpose knowledge graph (KG)…

Computation and Language · Computer Science 2023-01-31 Laura Perez-Beltrachini , Parag Jain , Emilio Monti , Mirella Lapata

We propose a novel technique to enhance Knowledge Graph Reasoning by combining Graph Convolution Neural Network (GCN) with the Attention Mechanism. This approach utilizes the Attention Mechanism to examine the relationships between entities…

Information Retrieval · Computer Science 2025-03-24 Meera Gupta , Ravi Khanna , Divya Choudhary , Nandini Rao

The number of published research papers has experienced exponential growth in recent years, which makes it crucial to develop new methods for efficient and versatile information extraction and knowledge discovery. To address this need, we…

Information Retrieval · Computer Science 2023-06-09 Yamei Tu , Rui Qiu , Han-Wei Shen

Recent advances in Knowledge Graph Embedding (KGE) allow for representing entities and relations in continuous vector spaces. Some traditional KGE models leveraging additional type information can improve the representation of entities…

Computation and Language · Computer Science 2020-10-07 Guanglin Niu , Bo Li , Yongfei Zhang , Shiliang Pu , Jingyang Li

Commonsense knowledge graph completion is a new challenge for commonsense knowledge graph construction and application. In contrast to factual knowledge graphs such as Freebase and YAGO, commonsense knowledge graphs (CSKGs; e.g.,…

Computation and Language · Computer Science 2024-02-16 Ying Su , Tianqing Fang , Huiru Xiao , Weiqi Wang , Yangqiu Song , Tong Zhang , Lei Chen

Knowledge Graph Question Answering (KGQA) aims to answer user-questions from a knowledge graph (KG) by identifying the reasoning relations between topic entity and answer. As a complex branch task of KGQA, multi-hop KGQA requires reasoning…

Computation and Language · Computer Science 2022-11-15 Weiqiang Jin , Biao Zhao , Hang Yu , Xi Tao , Ruiping Yin , Guizhong Liu

In recent years, Knowledge Graph (KG) development has attracted significant researches considering the applications in web search, relation prediction, natural language processing, information retrieval, question answering to name a few.…

Information Retrieval · Computer Science 2022-05-19 Satvik Garg , Dwaipayan Roy

Knowledge graph (KG) embedding seeks to learn vector representations for entities and relations. Conventional models reason over graph structures, but they suffer from the issues of graph incompleteness and long-tail entities. Recent…

Computation and Language · Computer Science 2022-09-16 Yang Liu , Zequn Sun , Guangyao Li , Wei Hu

Knowledge graph (KG) embedding has been used to benefit the diagnosis of animal diseases by analyzing electronic medical records (EMRs), such as notes and veterinary records. However, learning representations to capture entities and…

Artificial Intelligence · Computer Science 2023-09-08 Van Thuy Hoang , Sang Thanh Nguyen , Sangmyeong Lee , Jooho Lee , Luong Vuong Nguyen , O-Joun Lee

Integrating large language models (LLMs) with knowledge graphs derived from domain-specific data represents an important advancement towards more powerful and factual reasoning. As these models grow more capable, it is crucial to enable…

Artificial Intelligence · Computer Science 2024-04-19 Stefan Dernbach , Khushbu Agarwal , Alejandro Zuniga , Michael Henry , Sutanay Choudhury