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117 Results Found

  • Article
  • Open Access
10 Citations
2,302 Views
21 Pages

31 July 2024

With the continuous development and popularization of remote sensing technology, remote sensing images have been widely used in the field of land cover classification. Since remote sensing images have complex spatial structure and texture features, i...

  • Article
  • Open Access
1 Citations
836 Views
26 Pages

Triple-Stream Contrastive Deep Embedding Clustering via Semantic Structure

  • Aiyu Zheng,
  • Jianghui Cai,
  • Haifeng Yang,
  • Yalin Xun and
  • Xujun Zhao

7 November 2025

Deep neural network-based deep clustering has achieved remarkable success by unifying representation learning and clustering. However, conventional representation modules are typically not tailored for clustering, resulting in conflicting objectives...

  • Article
  • Open Access
25 Citations
4,412 Views
13 Pages

Metabolomics-based genome-wide association studies (mGWAS) are key to understanding the genetic regulations of metabolites in complex phenotypes. We previously developed mGWAS-Explorer 1.0 to link single-nucleotide polymorphisms (SNPs), metabolites,...

  • Article
  • Open Access
1,107 Views
14 Pages

7 August 2024

We consider the concept of fuzzy H-quasi-contraction (FH-QC for short) initiated by Ćirić in tripled fuzzy metric spaces (T-FMSs for short) and present a new fixed point theorem (FPT for short) for FH-QC in complete T-FMSs. As an applicatio...

  • Article
  • Open Access
1 Citations
3,394 Views
28 Pages

The Development of a Water Resource Monitoring Ontology as a Research Tool for Sustainable Regional Development

  • Assel Ospan,
  • Madina Mansurova,
  • Vladimir Barakhnin,
  • Aliya Nugumanova and
  • Roman Titkov

26 October 2023

The development of knowledge graphs about water resources as a tool for studying the sustainable development of a region is currently an urgent task, because the growing deterioration of the state of water bodies affects the ecology, economy, and hea...

  • Technical Note
  • Open Access
16 Citations
8,131 Views
13 Pages

Comparing Relational and Ontological Triple Stores in Healthcare Domain

  • Ozgu Can,
  • Emine Sezer,
  • Okan Bursa and
  • Murat Osman Unalir

11 January 2017

Today’s technological improvements have made ubiquitous healthcare systems that converge into smart healthcare applications in order to solve patients’ problems, to communicate effectively with patients, and to improve healthcare service quality. The...

  • Article
  • Open Access
2,391 Views
15 Pages

17 November 2022

Few-shot knowledge graph completion (FKGC) tasks involve determining the authenticity of triple candidates using a small number of reference triples with a given relation. Intuitively, the expression of relation features contributes to the close corr...

  • Article
  • Open Access
1 Citations
1,574 Views
21 Pages

27 June 2025

As Advanced Persistent Threats (APTs) continue to evolve, constructing a dynamic cybersecurity knowledge graph requires precise extraction of entity–relationship triples from unstructured threat intelligence. Existing approaches, however, face...

  • Article
  • Open Access
3,568 Views
19 Pages

Enriching Knowledge Base by Parse Tree Pattern and Semantic Filter

  • Hee-Geun Yoon,
  • Seyoung Park and
  • Seong-Bae Park

7 September 2020

This paper proposes a simple knowledge base enrichment based on parse tree patterns with a semantic filter. Parse tree patterns are superior to lexical patterns used commonly in many previous studies in that they can manage long distance dependencies...

  • Article
  • Open Access
1 Citations
570 Views
26 Pages

16 December 2025

Emergency scenarios in the Internet of Vehicles (IoV) face significant challenges due to the stringent requirements for ultra-reliable and low-latency communication under high-mobility conditions. This paper proposes a cooperative transmission framew...

  • Article
  • Open Access
4 Citations
2,981 Views
23 Pages

10 May 2023

The purpose of knowledge representation learning is to learn the vector representation of research objects projected by a matrix in low-dimensional vector space and explore the relationship between embedded objects in low-dimensional space. However,...

  • Article
  • Open Access
2 Citations
2,474 Views
16 Pages

DMCH: A Deep Metric and Category-Level Semantic Hashing Network for Retrieval in Remote Sensing

  • Haiyan Huang,
  • Qimin Cheng,
  • Zhenfeng Shao,
  • Xiao Huang and
  • Liyuan Shao

25 December 2023

The effectiveness of hashing methods in big data retrieval has been proved due to their merit in computational and storage efficiency. Recently, encouraged by the strong discriminant capability of deep learning in image representation, various deep h...

  • Article
  • Open Access
1,773 Views
34 Pages

Bridging Text and Knowledge: Explainable AI for Knowledge Graph Classification and Concept Map-Based Semantic Domain Discovery with OBOE Framework

  • Raúl A. del Águila Escobar,
  • María del Carmen Suárez-Figueroa,
  • Mariano Fernández López and
  • Boris Villazón Terrazas

18 November 2025

Explainable Artificial Intelligence (XAI) has primarily focused on explaining model predictions, yet a critical gap remains in explaining semantic structure discovery within knowledge graphs derived from concept maps (CMs). This study extends the OBO...

  • Article
  • Open Access
1 Citations
743 Views
21 Pages

Semantic-Aware Fusion of Mineral Exploration Knowledge Streams Towards Dynamic Geological Knowledge Graphs

  • Ying Qin,
  • Hui Yang,
  • Liu Cui,
  • Yuan Zhang,
  • Gefei Feng,
  • Yina Qiao and
  • Yuejing Yao

27 November 2025

Integrating heterogeneous and multilingual geoscience texts into coherent knowledge graphs is challenged by semantic inconsistencies from terminology variations, diverse expressions, and data heterogeneity, hindering the construction of reliable mine...

  • Article
  • Open Access
2 Citations
1,715 Views
16 Pages

A Cross-Modal Hash Retrieval Method with Fused Triples

  • Wenxiao Li,
  • Hongyan Mei,
  • Yutian Li,
  • Jiayao Yu,
  • Xing Zhang,
  • Xiaorong Xue and
  • Jiahao Wang

21 September 2023

Due to the fast retrieval speed and low storage cost, cross-modal hashing has become the primary method for cross-modal retrieval. Since the emergence of deep cross-modal hashing methods, cross-modal retrieval significantly improved. However, the exi...

  • Article
  • Open Access
11 Citations
5,220 Views
16 Pages

18 April 2022

The aim of Medical Knowledge Graph Completion is to automatically predict one of three parts (head entity, relationship, and tail entity) in RDF triples from medical data, mainly text data. Following their introduction, the use of pretrained language...

  • Article
  • Open Access
1 Citations
2,851 Views
56 Pages

Semantic Reasoning Using Standard Attention-Based Models: An Application to Chronic Disease Literature

  • Yalbi Itzel Balderas-Martínez,
  • José Armando Sánchez-Rojas,
  • Arturo Téllez-Velázquez,
  • Flavio Juárez Martínez,
  • Raúl Cruz-Barbosa,
  • Enrique Guzmán-Ramírez,
  • Iván García-Pacheco and
  • Ignacio Arroyo-Fernández

Large-language-model (LLM) APIs demonstrate impressive reasoning capabilities, but their size, cost, and closed weights limit the deployment of knowledge-aware AI within biomedical research groups. At the other extreme, standard attention-based neura...

  • Article
  • Open Access
1 Citations
988 Views
26 Pages

4 December 2025

Natural heritage digitization has evolved beyond simple 3D representation. Contemporary approaches require transparent documentation integrating biological, heritage, and digitization standards, yet existing frameworks operate in isolated domains wit...

  • Article
  • Open Access
5 Citations
3,514 Views
13 Pages

7 January 2023

Entity and relation extraction (ERE) is a core task in information extraction. This task has always faced the overlap problem. It was found that heterogeneous graph attention networks could enhance semantic analysis and fusion between entities and re...

  • Article
  • Open Access
12 Citations
7,779 Views
30 Pages

5 October 2019

Interoperability has become a major challenge for the development of integrated healthcare applications. This is mainly because of the reason that data is collected, processed, and managed using heterogeneous protocols, different data formats, and di...

  • Article
  • Open Access
91 Citations
9,279 Views
17 Pages

Achieving Complete and Near-Lossless Conversion from IFC to CityGML

  • Rudi Stouffs,
  • Helga Tauscher and
  • Filip Biljecki

The Singapore Government has embarked on a project to establish a three-dimensional city model and collaborative data platform for Singapore. The research herein contributes to this endeavour by developing a methodology and algorithms to automate the...

  • Article
  • Open Access
3 Citations
2,577 Views
16 Pages

FREDA: Few-Shot Relation Extraction Based on Data Augmentation

  • Junbao Liu,
  • Xizhong Qin,
  • Xiaoqin Ma and
  • Wensheng Ran

18 July 2023

The primary task of few-shot relation extraction is to quickly learn the features of relation classes from a few labelled instances and predict the semantic relations between entity pairs in new instances. Most existing few-shot relation extraction m...

  • Article
  • Open Access
12 Citations
2,930 Views
14 Pages

Triplet Contrastive Learning for Aspect Level Sentiment Classification

  • Haoliang Xiong,
  • Zehao Yan,
  • Hongya Zhao,
  • Zhenhua Huang and
  • Yun Xue

3 November 2022

The domain of Aspect Level Sentiment Classification, in which the sentiment toward a given aspect is analyzed, attracts much attention in NLP. Recently, the state-of-the-art Aspect Level Sentiment Classification methods are devised by using the Graph...

  • Article
  • Open Access
17 Citations
4,083 Views
11 Pages

TransET: Knowledge Graph Embedding with Entity Types

  • Peng Wang,
  • Jing Zhou,
  • Yuzhang Liu and
  • Xingchen Zhou

Knowledge graph embedding aims to embed entities and relations into low-dimensional vector spaces. Most existing methods only focus on triple facts in knowledge graphs. In addition, models based on translation or distance measurement cannot fully rep...

  • Article
  • Open Access
3 Citations
2,832 Views
24 Pages

2 October 2023

This study focuses on the extraction and semantic analysis of data from tables, emphasizing the importance of understanding the semantics of tables to obtain useful information. The main goal was to develop a technology using the ontology for the sem...

  • Article
  • Open Access
9 Citations
6,708 Views
13 Pages

R2D2: A Dbpedia Chatbot Using Triple-Pattern Like Queries

  • Haridimos Kondylakis,
  • Dimitrios Tsirigotakis,
  • Giorgos Fragkiadakis,
  • Emmanouela Panteri,
  • Alexandros Papadakis,
  • Alexandros Fragkakis,
  • Eleytherios Tzagkarakis,
  • Ioannis Rallis,
  • Zacharias Saridakis and
  • Nikolaos Papadakis
  • + 2 authors

3 September 2020

Chatbots, also known as conversation agents, are programs that are able to simulate and reproduce an intelligent conversation with humans. Although this type of program is not new, the explosion of the available information and the rapid increase of...

  • Article
  • Open Access
5 Citations
7,092 Views
25 Pages

Library organizations have enthusiastically undertaken semantic web initiatives and in particular the data publishing as linked data. Nevertheless, different surveys report the experimental nature of initiatives and the consumer difficulty in re-usin...

  • Article
  • Open Access
2,277 Views
25 Pages

13 November 2025

The cultural heritage of the Liao dynasty in Chifeng encompasses significant historical and cultural information that requires systematic digital preservation and management. However, heterogeneous data sources across museums, archives, and research...

  • Article
  • Open Access
7 Citations
3,555 Views
21 Pages

Linked Data Triples Enhance Document Relevance Classification

  • Dinesh Nagumothu,
  • Peter W. Eklund,
  • Bahadorreza Ofoghi and
  • Mohamed Reda Bouadjenek

20 July 2021

Standardized approaches to relevance classification in information retrieval use generative statistical models to identify the presence or absence of certain topics that might make a document relevant to the searcher. These approaches have been used...

  • Article
  • Open Access
254 Views
27 Pages

LTPNet: Lesion-Aware Triple-Path Feature Fusion Network for Skin Lesion Segmentation

  • Yange Sun,
  • Sen Chen,
  • Huaping Guo,
  • Li Zhang,
  • Hongzhou Yue and
  • Yan Feng

24 February 2026

Skin lesion segmentation has achieved notable progress in recent years; however, accurate delineation remains challenging due to complex backgrounds, ambiguous boundaries, and low lesion-to-skin contrast. To address these issues, we propose the lesio...

  • Article
  • Open Access
1,777 Views
20 Pages

Multi-Source Information Graph Embedding with Ensemble Learning for Link Prediction

  • Chunning Hou,
  • Xinzhi Wang,
  • Xiangfeng Luo and
  • Shaorong Xie

Link prediction is a key technique for connecting entities and relationships in a graph reasoning field. It leverages known information about the graph structure data to predict missing factual information. Previous studies have either focused on the...

  • Article
  • Open Access
11 Citations
7,038 Views
33 Pages

The main objective of Linked Data is linking and integration, and a major step for evaluating whether this target has been reached, is to find all the connections among the Linked Open Data (LOD) Cloud datasets. Connectivity among two or more dataset...

  • Article
  • Open Access
563 Views
17 Pages

1 November 2025

Few-shot knowledge graph (KG) completion is challenged by the dynamic and long-tail nature of real-world KGs, where only a handful of relation-specific triples are available for each new relation. Existing methods often over-rely on neighbor informat...

  • Article
  • Open Access
2 Citations
2,681 Views
30 Pages

8 September 2025

The digitisation of law-enforcement archives is examined with the aim of moving from static analogue records to interoperable semantic information systems. A step-by-step framework for optimal digitisation is proposed, grounded in archival best pract...

  • Article
  • Open Access
2 Citations
2,080 Views
20 Pages

Complex Queries for Querying Linked Data

  • Hasna Boumechaal and
  • Zizette Boufaida

Querying Linked Data is one of the most important issues for the semantic web community today because it requires the user to understand the structure and vocabularies used in various data sources. Furthermore, users must be familiar with the syntax...

  • Article
  • Open Access
6 Citations
2,661 Views
20 Pages

16 May 2023

In the field of question answering-based knowledge graphs, due to the complexity of the construction of knowledge graphs, a domain-specific knowledge graph often cannot contain some common-sense knowledge, which makes it impossible to answer question...

  • Article
  • Open Access
6 Citations
2,086 Views
17 Pages

AT4CTIRE: Adversarial Training for Cyber Threat Intelligence Relation Extraction

  • Yue Han,
  • Rong Jiang,
  • Changjian Li,
  • Yanyi Huang,
  • Kai Chen,
  • Han Yu,
  • Aiping Li,
  • Weihong Han,
  • Shengnan Pang and
  • Xuechen Zhao

Cyber Threat Intelligence (CTI) plays a crucial role in cybersecurity. However, traditional information extraction has low accuracy due to the specialization of CTI and the concealment of relations. To improve the performance of CTI relation extracti...

  • Article
  • Open Access
7 Citations
2,157 Views
16 Pages

2 September 2022

Knowledge representation learning is representing entities and relations in a knowledge graph as dense low-dimensional vectors in the continuous space, which explores the features and properties of the graph. Such a technique can facilitate the compu...

  • Article
  • Open Access
1 Citations
2,714 Views
22 Pages

Explicit and Implicit Feature Contrastive Learning Model for Knowledge Graph Link Prediction

  • Xu Yuan,
  • Weihe Wang,
  • Buyun Gao,
  • Liang Zhao,
  • Ruixin Ma and
  • Feng Ding

18 November 2024

Knowledge graph link prediction is crucial for constructing triples in knowledge graphs, which aim to infer whether there is a relation between the entities. Recently, graph neural networks and contrastive learning have demonstrated superior performa...

  • Article
  • Open Access
3 Citations
3,175 Views
12 Pages

Knowledge graph completion (KGC), the process of predicting missing knowledge through known triples, is a primary focus of research in the field of knowledge graphs. As an important graph representation technique in deep learning, graph neural networ...

  • Article
  • Open Access
11 Citations
3,570 Views
16 Pages

28 December 2022

This paper develops an approach to perform binary semantic segmentation on Arabidopsis thaliana root images for plant root phenotyping using a conditional generative adversarial network (cGAN) to address pixel-wise class imbalance. Specifically, we u...

  • Article
  • Open Access
1,066 Views
22 Pages

Knowledge-Driven 3D Content Generation: A Rule+LLM-Verify-Based Method for Constructing a Tibetan Cultural and Tourism Knowledge Graph

  • Ke Wang,
  • Shuai Yan,
  • Zirui Liu,
  • Xiaokai Yuan,
  • Fei Li,
  • Bingtao Jiang,
  • Shengying Yang and
  • Huan Deng

22 October 2025

The digital transformation of Tibetan cultural tourism is hindered by high manual costs, weak semantic adaptability, and cultural security risks. To address these, this paper proposes RLT2C, a “Rule+LLM-Verify” approach to automated and c...

  • Article
  • Open Access
9 Citations
3,542 Views
20 Pages

16 March 2023

Relation extraction, a fundamental task in natural language processing, aims to extract entity triples from unstructured data. These triples can then be used to build a knowledge graph. Recently, pre-training models that have learned prior semantic a...

  • Article
  • Open Access
8 Citations
4,844 Views
20 Pages

Agent-Based Semantic Role Mining for Intelligent Access Control in Multi-Domain Collaborative Applications of Smart Cities

  • Rubina Ghazal,
  • Ahmad Kamran Malik,
  • Basit Raza,
  • Nauman Qadeer,
  • Nafees Qamar and
  • Sajal Bhatia

22 June 2021

Significance and popularity of Role-Based Access Control (RBAC) is inevitable; however, its application is highly challenging in multi-domain collaborative smart city environments. The reason is its limitations in adapting the dynamically changing in...

  • Article
  • Open Access
15 Citations
6,123 Views
32 Pages

Earth Observation data possess tremendous potential in understanding the dynamics of our planet. We propose the Semantics-driven Remote Sensing Scene Understanding (Sem-RSSU) framework for rendering comprehensive grounded spatio-contextual scene desc...

  • Article
  • Open Access
1,936 Views
22 Pages

Time Travel with the BiTemporal RDF Model

  • Abdullah Uz Tansel,
  • Di Wu and
  • Hsien-Tseng Wang

27 June 2025

The Internet is not just used for communication, transactions, and cloud storage; it also serves as a massive knowledge store where both people and machines can create, analyze, and use data and information. The Semantic Web was designed to enable ma...

  • Article
  • Open Access
8 Citations
3,577 Views
17 Pages

Constructed emergency response scenarios provide a basis for decision makers to make management decisions, and the development of such scenarios considers earlier historical cases. Over the decades, the development of emergency response scenarios has...

  • Feature Paper
  • Article
  • Open Access
4 Citations
1,986 Views
19 Pages

9 November 2022

Since data are gradually enriched over time, knowledge graphs are inherently imperfect. Thus, knowledge graph completion is proposed to perfect knowledge graph by completing triples. Currently, a family of translation models has become the most effec...

  • Article
  • Open Access
9 Citations
4,205 Views
15 Pages

16 October 2020

Knowledge graph completion can make knowledge graphs more complete, which is a meaningful research topic. However, the existing methods do not make full use of entity semantic information. Another challenge is that a deep model requires large-scale m...

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