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Modern Large Language Models (LLMs) have shown impressive performances in user-facing tasks such as question answering, as well as consistent improvements in reasoning capabilities. Still, the way these models encode knowledge seems…

Computation and Language · Computer Science 2026-05-20 Davide Cavicchini , Fausto Giunchiglia , Jacopo Staiano

Knowledge Graphs (KG) constitute a flexible representation of complex relationships between entities particularly useful for biomedical data. These KG, however, are very sparse with many missing edges (facts) and the visualisation of the…

Artificial Intelligence · Computer Science 2016-12-08 Armando Vieira

Knowledge Graph (KG) is a graph based data structure to represent facts of the world where nodes represent real world entities or abstract concept and edges represent relation between the entities. Graph as representation for knowledge has…

Social and Information Networks · Computer Science 2024-04-16 Manita Pote

In this paper, we build upon notions from knowledge representation and reasoning (KR) to expand a preliminary logic-based framework that characterizes the model reconciliation problem for explainable planning. We also provide a detailed…

Artificial Intelligence · Computer Science 2020-12-17 Stylianos Loukas Vasileiou , William Yeoh , Tran Cao Son

The human mind is a powerful multifunctional knowledge storage and management system that performs generalization, type inference, anomaly detection, stereotyping, and other tasks. A dynamic KR system that appropriately profiles over sparse…

Artificial Intelligence · Computer Science 2018-10-02 Filip Ilievski , Eduard Hovy , Qizhe Xie , Piek Vossen

This paper introduces a knowledge recognition algorithm (KRA) that is both a Turing machine algorithm and an Oracle Turing machine algorithm. By definition KRA is a non-deterministic language recognition algorithm. Simultaneously it can be…

Computational Complexity · Computer Science 2010-09-07 Han Xiao Wen

Data quality is critical for multimedia tasks, while various types of systematic flaws are found in image benchmark datasets, as discussed in recent work. In particular, the existence of the semantic gap problem leads to a many-to-many…

Computer Vision and Pattern Recognition · Computer Science 2023-04-19 Fausto Giunchiglia , Xiaolei Diao , Mayukh Bagchi

Representation learning of knowledge bases (KBs) aims to embed both entities and relations into a low-dimensional space. Most existing methods only consider direct relations in representation learning. We argue that multiple-step relation…

Computation and Language · Computer Science 2015-08-18 Yankai Lin , Zhiyuan Liu , Huanbo Luan , Maosong Sun , Siwei Rao , Song Liu

Knowledge Representation Learning (KRL) is crucial for enabling applications of symbolic knowledge from Knowledge Graphs (KGs) to downstream tasks by projecting knowledge facts into vector spaces. Despite their effectiveness in modeling KG…

Computation and Language · Computer Science 2025-04-09 Xin Wang , Zirui Chen , Haofen Wang , Leong Hou U , Zhao Li , Wenbin Guo

Knowledge Transfer (KT) techniques tackle the problem of transferring the knowledge from a large and complex neural network into a smaller and faster one. However, existing KT methods are tailored towards classification tasks and they…

Machine Learning · Computer Science 2019-03-21 Nikolaos Passalis , Anastasios Tefas

This position paper argues that reliable AI requires infrastructure for human validation of implicit knowledge. AI learns from both explicit knowledge (papers, documentation, structured databases) and implicit knowledge (reasoning patterns,…

Artificial Intelligence · Computer Science 2026-05-26 Hengyu Liu , Tianyi Li , Zhihong Cui , Yushuai Li , Zhangkai Wu , Torben Bach Pedersen , Kristian Torp , Christian S. Jensen

Entity type prediction is an important problem in knowledge graph (KG) research. A new KG entity type prediction method, named CORE (COmplex space Regression and Embedding), is proposed in this work. The proposed CORE method leverages the…

Machine Learning · Computer Science 2022-04-12 Xiou Ge , Yun-Cheng Wang , Bin Wang , C. -C. Jay Kuo

Intelligent technologies, in particular systems to promote health and well-being, are inherently centered around the human being, and they need to interrelate with human activities at their core. While social sciences provide angles to…

Logic in Computer Science · Computer Science 2018-11-15 Johannes Oetsch , Juan-Carlos Nieves

Processes, workflows and guidelines are core to ensure the correct functioning of industrial companies: for the successful operations of factory lines, machinery or services, often industry operators rely on their past experience and…

Artificial Intelligence · Computer Science 2025-12-08 Valentina Anita Carriero , Mario Scrocca , Ilaria Baroni , Antonia Azzini , Irene Celino

Knowledge graphs (KGs) are a popular way to organise information based on ontologies or schemas and have been used across a variety of scenarios from search to recommendation. Despite advances in KGs, representing knowledge remains a…

Artificial Intelligence · Computer Science 2023-10-10 Christos Theodoropoulos , Natasha Mulligan , Thaddeus Stappenbeck , Joao Bettencourt-Silva

Knowledge representation and reasoning (KRR) is one of the key areas in artificial intelligence (AI) field. It is intended to represent the world knowledge in formal languages (e.g., Prolog, SPARQL) and then enhance the expert systems to…

Artificial Intelligence · Computer Science 2019-09-19 Tiantian Gao

Knowledge Representation is important issue in reinforcement learning. In this paper, we bridge the gap between reinforcement learning and knowledge representation, by providing a rich knowledge representation framework, based on normal…

Artificial Intelligence · Computer Science 2010-12-08 Emad Saad

In this paper we introduce the olog, or ontology log, a category-theoretic model for knowledge representation (KR). Grounded in formal mathematics, ologs can be rigorously formulated and cross-compared in ways that other KR models (such as…

Logic in Computer Science · Computer Science 2015-05-27 David I. Spivak , Robert E. Kent

Designed to track changes in students' knowledge status and predict their future answers based on students' historical answer records. Current research on KT modeling focuses on predicting future student performance based on existing,…

Artificial Intelligence · Computer Science 2025-12-18 Lixiang Xu , Xianwei Ding , Xin Yuan , Zhanlong Wang , Lu Bai , Enhong Chen , Philip S. Yu , Yuanyan Tang

Entity images could provide significant visual information for knowledge representation learning. Most conventional methods learn knowledge representations merely from structured triples, ignoring rich visual information extracted from…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Ruobing Xie , Zhiyuan Liu , Huanbo Luan , Maosong Sun