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We propose a new approach for generating SPARQL queries on RDF knowledge graphs from natural language questions or keyword queries, using a large language model. Our approach does not require fine-tuning. Instead, it uses the language model…

Computation and Language · Computer Science 2026-01-12 Sebastian Walter , Hannah Bast

We introduce geoplotlib, an open-source python toolbox for visualizing geographical data. geoplotlib supports the development of hardware-accelerated interactive visualizations in pure python, and provides implementations of dot maps,…

Graphics · Computer Science 2016-08-08 Andrea Cuttone , Sune Lehmann , Jakob Eg Larsen

Recent advances in Large Language Models (LLMs) have led to dramatic improvements in question answering (QA). To address the challenge of evaluating QA systems, standardized benchmarks have been introduced. This work focuses on the problem…

Databases · Computer Science 2026-05-22 Majid Saeedan , Muhammad Shihab Rashid , Ahmed Eldawy , Vagelis Hristidis

The Resource Description Framework is well-established as a lingua franca for data modeling and is designed to integrate heterogeneous data at instance and schema level using statements. While RDF is conceptually simple, data models…

Databases · Computer Science 2022-11-30 Florian Rupp , Benjamin Schnabel , Kai Eckert

We suggest to employ techniques from Natural Language Processing (NLP) and Knowledge Representation (KR) to transform existing documents into documents amenable for the Semantic Web. Semantic Web documents have at least part of their…

Artificial Intelligence · Computer Science 2007-05-23 Dietmar Roesner , Manuela Kunze , Sylke Kroetzsch

The RDF Mapping Language (RML) allows to map semi-structured data to RDF knowledge graphs. Besides CSV, JSON and XML, this also includes the mapping of spreadsheet tables. Since spreadsheets have a complex data model and can become rather…

Databases · Computer Science 2021-10-26 Markus Schröder , Christian Jilek , Andreas Dengel

Geometry diagram parsing plays a key role in geometry problem solving, wherein the primitive extraction and relation parsing remain challenging due to the complex layout and between-primitive relationship. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2022-05-20 Ming-Liang Zhang , Fei Yin , Yi-Han Hao , Cheng-Lin Liu

Archived collections of documents (like newspaper archives) serve as important information sources for historians, journalists, sociologists and other interested parties. Semantic Layers over such digital archives allow describing and…

Information Retrieval · Computer Science 2022-10-19 Pavlos Fafalios , Vaibhav Kasturia , Wolfgang Nejdl

The abundance of the data in the Internet facilitates the improvement of extraction and processing tools. The trend in the open data publishing encourages the adoption of structured formats like CSV and RDF. However, there is still a…

Information Retrieval · Computer Science 2016-08-08 Mikhail Galkin , Dmitry Mouromtsev , Sören Auer

In constraint languages for RDF graphs, such as ShEx and SHACL, constraints on nodes and their properties in RDF graphs are known as "shapes". Schemas in these languages list the various shapes that certain targeted nodes must satisfy for…

Databases · Computer Science 2021-12-23 Thomas Delva , Anastasia Dimou , Maxime Jakubowski , Jan Van den Bussche

Protein engineering is experiencing a paradigmatic shift through the integration of geometric deep learning into computational design workflows. While traditional strategies, such as rational design and directed evolution, have enabled…

Change detection in remote sensing imagery plays a vital role in various engineering applications, such as natural disaster monitoring, urban expansion tracking, and infrastructure management. Despite the remarkable progress of deep…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 Xiaoyang Zhang , Guodong Fan , Guang-Yong Chen , Zhen Hua , Jinjiang Li , Min Gan , C. L. Philip Chen

3D point cloud segmentation faces practical challenges due to the computational complexity and deployment limitations of large-scale transformer-based models. To address this, we propose a novel Structure- and Relation-aware Knowledge…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Yuqi Li , Junhao Dong , Zeyu Dong , Chuanguang Yang , Zhulin An , Yongjun Xu

Navigational graph queries are an important class of queries that canextract implicit binary relations over the nodes of input graphs. Most of the navigational query languages used in the RDF community, e.g. property paths in W3C SPARQL 1.1…

Databases · Computer Science 2016-10-10 Xiaowang Zhang , Zhiyong Feng , Xin Wang , Guozheng Rao , Wenrui Wu

Resource Description Framework (RDF) and Property Graph (PG) are the two most commonly used data models for representing, storing, and querying graph data. We present Expressive Reasoning Graph Store (ERGS) -- a graph store built on top of…

Artificial Intelligence · Computer Science 2022-09-14 Sumit Neelam , Udit Sharma , Sumit Bhatia , Hima Karanam , Ankita Likhyani , Ibrahim Abdelaziz , Achille Fokoue , L. V. Subramaniam

The drone navigation requires the comprehensive understanding of both visual and geometric information in the 3D world. In this paper, we present a Visual-Geometric Fusion Network(VGF-Net), a deep network for the fusion analysis of…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 Yilin Liu , Ke Xie , Hui Huang

Airborne magnetic data are commonly used to produce preliminary geological maps. Machine learning has the potential to partly fulfill this task rapidly and objectively, as geological mapping is comparable to a semantic segmentation problem.…

Integrating ground-level geospatial data with rich geographic context, like OpenStreetMap (OSM), into remote sensing (RS) foundation models (FMs) is essential for advancing geospatial intelligence and supporting a broad spectrum of tasks.…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Lubian Bai , Xiuyuan Zhang , Siqi Zhang , Zepeng Zhang , Haoyu Wang , Wei Qin , Shihong Du

Qualifying the discrepancy between 3D geometric models, which could be represented with either point clouds or triangle meshes, is a pivotal issue with board applications. Existing methods mainly focus on directly establishing the…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Siyu Ren , Junhui Hou , Xiaodong Chen , Hongkai Xiong , Wenping Wang

Reasoning over knowledge graphs is traditionally built upon a hierarchy of languages in the Semantic Web Stack. Starting from the Resource Description Framework (RDF) for knowledge graphs, more advanced constructs have been introduced…

Formal Languages and Automata Theory · Computer Science 2020-03-10 Zhangsheng Lai , Aik Beng Ng , Liang Ze Wong , Simon See , Shaowei Lin