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Topological data analysis leverages topological features to analyze datasets, with applications in diverse fields like medical sciences and biology. A key tool of this theory is the persistence diagram, which encodes topological information…

Algebraic Topology · Mathematics 2024-10-22 Michael Etienne Van Huffel , Olympio Hacquard , Vadim Lebovici , Matteo Palo

We present a new approach for recognition of complex graphic symbols in technical documents. Graphic symbol recognition is a well known challenge in the field of document image analysis and is at heart of most graphic recognition systems.…

Computer Vision and Pattern Recognition · Computer Science 2016-11-17 Muhammad Muzzamil Luqman , Thierry Brouard , Jean-Yves Ramel

We present a data-driven framework to automate the vectorization and machine interpretation of 2D engineering part drawings. In industrial settings, most manufacturing engineers still rely on manual reads to identify the topological and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-15 Wentai Zhang , Joe Joseph , Yue Yin , Liuyue Xie , Tomotake Furuhata , Soji Yamakawa , Kenji Shimada , Levent Burak Kara

Graph embedding algorithms are used to efficiently represent (encode) a graph in a low-dimensional continuous vector space that preserves the most important properties of the graph. One aspect that is often overlooked is whether the graph…

Machine Learning · Computer Science 2020-01-31 Zekarias T. Kefato , Nasrullah Sheikh , Alberto Montresor

Ongoing standardization in Industry 4.0 supports tool vendor neutral representations of Piping and Instrumentation diagrams as well as 3D pipe routing. However, a complete digital plant model requires combining these two representations. 3D…

Systems and Control · Electrical Eng. & Systems 2021-04-06 Seppo Sierla , Mohammad Azangoo , Alexander Fay , Valeriy Vyatkin , Nikolaos Papakonstantinou

Graph transformers are a recent advancement in machine learning, offering a new class of neural network models for graph-structured data. The synergy between transformers and graph learning demonstrates strong performance and versatility…

Machine Learning · Computer Science 2025-12-23 Ahsan Shehzad , Feng Xia , Shagufta Abid , Ciyuan Peng , Shuo Yu , Dongyu Zhang , Karin Verspoor

This paper introduces a new approach to extract and analyze vector data from technical drawings in PDF format. Our method involves converting PDF files into SVG format and creating a feature-rich graph representation, which captures the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-03 Andrea Carrara , Stavros Nousias , André Borrmann

Digital Engineering, the digital transformation of engineering to leverage digital technologies, is coming globally. This paper explores digital systems engineering, which aims at developing theory, methods, models, and tools to support the…

Transparency of neural networks' internal reasoning is at the heart of interpretability research, adding to trust, safety, and understanding of these models. The field of mechanistic interpretability has recently focused on studying…

Artificial Intelligence · Computer Science 2026-04-17 Nina Żukowska , Wolfgang Stammer , Bernt Schiele , Jonas Fischer

The success of large pretrained Transformers is closely tied to tokenizers, which convert raw input into discrete symbols. Extending these models to graph-structured data remains a significant challenge. In this work, we introduce a graph…

Machine Learning · Computer Science 2026-03-13 Zeyuan Guo , Enmao Diao , Cheng Yang , Chuan Shi

In the domain of analog circuit design, the retrieval of circuit diagrams has drawn a great interest, primarily due to its vital role in the consultation of legacy designs and the detection of design plagiarism. Existing image retrieval…

Hardware Architecture · Computer Science 2025-03-18 Ming Gao , Ruichen Qiu , Zeng Hui Chang , Kanjian Zhang , Haikun Wei , Hong Cai Chen

In industrial manufacturing, deploying deep learning models for visual inspection is mostly hindered by the high and often intractable cost of collecting and annotating large-scale training datasets. While image synthesis from 3D CAD models…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Nico Baumgart , Markus Lange-Hegermann , Mike Mücke

The paper presents a new model for single channel images low-level interpretation. The image is decomposed into a graph which captures a complete set of structural features. The description allows to accurately identify every edge location…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 Alessandro Dal Palu'

Parsing Computer-Aided Design (CAD) drawings is a fundamental step for CAD revision, semantic-based management, and the generation of 3D prototypes in both the architecture and engineering industries. Labeling symbols from a CAD drawing is…

Computer Vision and Pattern Recognition · Computer Science 2024-04-18 Junbiao Pang , Zailin Dong , Jiaxin Deng , Mengyuan Zhu , Yunwei Zhang

Handwritten archival tables contain rich historical information, yet transforming them into structured representations, such as Knowledge Graphs, requires integrating table structure recognition, handwriting recognition, and semantic…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Sarah Binta Alam Shoilee , Victor de Boer , Jacco van Ossenbruggen , Susan Legêne

Labeling images for visual segmentation is a time-consuming task which can be costly, particularly in application domains where labels have to be provided by specialized expert annotators, such as civil engineering. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-09-23 Klara Janouskova , Mattia Rigotti , Ioana Giurgiu , Cristiano Malossi

We present a new method for vectorization of technical line drawings, such as floor plans, architectural drawings, and 2D CAD images. Our method includes (1) a deep learning-based cleaning stage to eliminate the background and imperfections…

Computer Vision and Pattern Recognition · Computer Science 2021-01-20 Vage Egiazarian , Oleg Voynov , Alexey Artemov , Denis Volkhonskiy , Aleksandr Safin , Maria Taktasheva , Denis Zorin , Evgeny Burnaev

Road network graphs provide critical information for autonomous-vehicle applications, such as drivable areas that can be used for motion planning algorithms. To find road network graphs, manually annotation is usually inefficient and…

Computer Vision and Pattern Recognition · Computer Science 2022-08-10 Zhenhua Xu , Yuxuan Liu , Lu Gan , Yuxiang Sun , Xinyu Wu , Ming Liu , Lujia Wang

The ongoing digitization of the industrial sector has reached a pivotal juncture with the emergence of Digital Twins, offering a digital representation of physical assets and processes. One key aspect of those digital representations are…

Computational Engineering, Finance, and Science · Computer Science 2024-12-23 Franz Georg Listl , Daniel Dittler , Gary Hildebrandt , Valentin Stegmaier , Nasser Jazdi , Michael Weyrich

Transformers have become the architecture of choice for learning long-range dependencies, yet their adoption in hyperspectral imaging (HSI) is still emerging. We reviewed more than 300 papers published up to 2025 and present the first…

Computer Vision and Pattern Recognition · Computer Science 2025-06-11 Guyang Zhang , Waleed Abdulla