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The objective of the knowledge base completion problem is to infer missing information from existing facts in a knowledge base. Prior work has demonstrated the effectiveness of path-ranking based methods, which solve the problem by…

Artificial Intelligence · Computer Science 2019-11-27 Weiyu Liu , Angel Daruna , Zsolt Kira , Sonia Chernova

Dynamic networks offer an insight of how relational systems evolve. However, modeling these networks efficiently remains a challenge, primarily due to computational constraints, especially as the number of observed events grows. This paper…

Machine Learning · Statistics 2023-12-20 Edoardo Filippi-Mazzola , Ernst C. Wit

Though deep neural networks have great success in natural language processing, they are limited at more knowledge intensive AI tasks, such as open-domain Question Answering (QA). Existing end-to-end deep QA models need to process the entire…

Computation and Language · Computer Science 2019-03-05 Fan Yang , Jiazhong Nie , William W. Cohen , Ni Lao

Model-based representations recently stand out as a promising framework that embeds latent dynamics information into the representations for downstream off-policy actor-critic learning. It implicitly combines the advantages of both…

Machine Learning · Computer Science 2026-05-13 Jiafei Lyu , Zichuan Lin , Scott Fujimoto , Kai Yang , Yangkun Chen , Saiyong Yang , Zongqing Lu , Deheng Ye

With the rapid growth of knowledge bases (KBs), question answering over knowledge base, a.k.a. KBQA has drawn huge attention in recent years. Most of the existing KBQA methods follow so called encoder-compare framework. They map the…

Computation and Language · Computer Science 2018-05-29 Yingqi Qu , Jie Liu , Liangyi Kang , Qinfeng Shi , Dan Ye

This paper proposes a tentative and original survey of meeting points between Knowledge Representation and Reasoning (KRR) and Machine Learning (ML), two areas which have been developing quite separately in the last three decades. Some…

We introduce KBGAN, an adversarial learning framework to improve the performances of a wide range of existing knowledge graph embedding models. Because knowledge graphs typically only contain positive facts, sampling useful negative…

Computation and Language · Computer Science 2018-04-17 Liwei Cai , William Yang Wang

Entity alignment which aims at linking entities with the same meaning from different knowledge graphs (KGs) is a vital step for knowledge fusion. Existing research focused on learning embeddings of entities by utilizing structural…

Artificial Intelligence · Computer Science 2020-12-16 Yao Zhu , Hongzhi Liu , Zhonghai Wu , Yingpeng Du

Reinforcement learning (RL) is a powerful tool for solving complex decision-making problems, but its lack of transparency and interpretability has been a major challenge in domains where decisions have significant real-world consequences.…

Artificial Intelligence · Computer Science 2023-09-12 Muzhe Guo , Feixu Yu , Tian Lan , Fang Jin

Current language models have a significant limitation in the ability to encode and decode factual knowledge. This is mainly because they acquire such knowledge from statistical co-occurrences although most of the knowledge words are rarely…

Computation and Language · Computer Science 2017-03-03 Sungjin Ahn , Heeyoul Choi , Tanel Pärnamaa , Yoshua Bengio

This study combines two different learning paradigms, k-nearest neighbor (k-NN) rule, as memory-based learning paradigm and relevance vector machines (RVM), as statistical learning paradigm. This combination is performed in kernel space and…

Machine Learning · Computer Science 2021-03-09 Sara Hosseinzadeh Kassani , Farhood Rismanchian , Peyman Hosseinzadeh Kassani

Embedding-based methods are popular for Knowledge Base Question Answering (KBQA), but few current models have numerical reasoning skills and thus struggle to answer ordinal constrained questions. This paper proposes a new embedding-based…

Computation and Language · Computer Science 2022-05-17 Yu Feng , Jing Zhang , Xiaokang Zhang , Lemao Liu , Cuiping Li , Hong Chen

Knowledge graphs (KGs) are of great importance to many real world applications, but they generally suffer from incomplete information in the form of missing relations between entities. Knowledge graph completion (also known as relation…

Machine Learning · Computer Science 2021-03-02 Zijun Cui , Pavan Kapanipathi , Kartik Talamadupula , Tian Gao , Qiang Ji

Knowledge Base Question Answering (KBQA) challenges models to bridge the gap between natural language and strict knowledge graph schemas by generating executable logical forms. While Large Language Models (LLMs) have advanced this field,…

Computation and Language · Computer Science 2026-01-12 Xin Sun , Zhongqi Chen , Xing Zheng , Qiang Liu , Shu Wu , Bowen Song , Zilei Wang , Weiqiang Wang , Liang Wang

Recent interest in Knowledge Base Completion (KBC) has led to a plethora of approaches based on reinforcement learning, inductive logic programming and graph embeddings. In particular, rule-based KBC has led to interpretable rules while…

Artificial Intelligence · Computer Science 2021-09-21 Prithviraj Sen , Breno W. S. R. Carvalho , Ibrahim Abdelaziz , Pavan Kapanipathi , Francois Luus , Salim Roukos , Alexander Gray

A core challenge for faithful LLM role-playing is sustaining consistent characterization throughout long, open-ended dialogues, as models frequently fail to recall and accurately apply their designated persona knowledge without explicit…

Computation and Language · Computer Science 2026-03-23 Kai Wang , Haoyang You , Yang Zhang , Zhongjie Wang

Visual Question Answering (VQA) has emerged as one of the most challenging tasks in artificial intelligence due to its multi-modal nature. However, most existing VQA methods are incapable of handling Knowledge-based Visual Question…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Chengxiang Yin , Zhengping Che , Kun Wu , Zhiyuan Xu , Jian Tang

To make progress in science, we often build abstract representations of physical systems that meaningfully encode information about the systems. The representations learnt by most current machine learning techniques reflect statistical…

Team adaptation to new cooperative tasks is a hallmark of human intelligence, which has yet to be fully realized in learning agents. Previous work on multi-agent transfer learning accommodate teams of different sizes, heavily relying on the…

Artificial Intelligence · Computer Science 2022-03-10 Rongjun Qin , Feng Chen , Tonghan Wang , Lei Yuan , Xiaoran Wu , Zongzhang Zhang , Chongjie Zhang , Yang Yu

How are the meanings of linguistic expressions related to their use in concrete cognitive tasks? Visual identification tasks show human speakers can exhibit considerable variation in their understanding, representation and verification of…

Computation and Language · Computer Science 2019-04-08 Lewis O'Sullivan , Shane Steinert-Threlkeld