Stefan Petrescu

ORCID: 0000-0003-0149-6645
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About
Contact & Profiles
Research Areas
  • Software System Performance and Reliability
  • Gaze Tracking and Assistive Technology
  • Software Reliability and Analysis Research
  • Topic Modeling
  • Anomaly Detection Techniques and Applications
  • Advanced Vision and Imaging
  • Interactive and Immersive Displays
  • Privacy-Preserving Technologies in Data
  • Color perception and design
  • Visual Attention and Saliency Detection
  • Software Engineering Research
  • Image Processing Techniques and Applications
  • Natural Language Processing Techniques
  • Optical Coherence Tomography Applications
  • Business Process Modeling and Analysis
  • Semantic Web and Ontologies
  • IoT and Edge/Fog Computing
  • Data Quality and Management
  • Peer-to-Peer Network Technologies
  • Cloud Computing and Resource Management

Leibniz University Hannover
2023

Park Plaza Hospital
2023

University of Basel
2023

Software (Germany)
2023

Dependable Computing (United States)
2023

Real time face detection combined with eyegaze tracking can provide a means of user input into gaming environment. Game and CE system designers use facial eye-gaze information in various ways to enhance UI design providing smarter modes gameplay interaction modalities that are sensitive users behaviors mood. Here we review earlier approaches, using wearable sensors, or enhanced IR illumination. Our technique only requires video feed from low-resolution user-facing camera. The algorithm is...

10.1109/tce.2012.6227433 article EN IEEE Transactions on Consumer Electronics 2012-05-01

Due to the complexity and size of modern software systems, amount logs generated is tremendous. Hence, it infeasible manually investigate these data in a reasonable time, thereby requiring automating log analysis derive insights about functioning systems. Motivated by an industry use-case, we zoom-in on one integral part automated analysis, parsing, which prerequisite deriving any from logs. Our investigation reveals problematic aspects within parsing field, particularly its inefficiency...

10.1109/issre59848.2023.00019 article EN 2023-10-09

Real-time face detection combined with eye-gaze tracking and analysis can provide a new means of user input in gaming environment. Game designers use facial information various ways designing the interface (UI) to smarter modes interaction players.

10.1109/igic.2011.6115110 article EN 2011-11-01

Large language models have gained widespread popularity for their ability to process natural inputs and generate insights derived from training data, nearing the qualities of true artificial intelligence. This advancement has prompted enterprises worldwide integrate LLMs into services. So far, this effort is dominated by commercial cloud-based solutions like OpenAI's ChatGPT Microsoft Azure. As technology matures, however, there a strong incentive independence major cloud providers through...

10.48550/arxiv.2411.14513 preprint EN arXiv (Cornell University) 2024-11-21

This paper presents the combined effect of two most challenging problems low light: auto-focus (AF) error and how it impacts on automatic red-eye removal algorithms. We propose an algorithm to overcome issues which consists understanding level blur in input image simulation Bokeh corrected pixels. The is designed avoid complex computations cannot run embedded devices such as digital cameras.

10.1109/isscs.2011.5978696 article EN 2011-06-01

Due to the complexity and size of modern software systems, amount logs generated is tremendous. Hence, it infeasible manually investigate these data in a reasonable time, thereby requiring automating log analysis derive insights about functioning systems. Motivated by an industry use-case, we zoom-in on one integral part automated analysis, parsing, which prerequisite deriving any from logs. Our investigation reveals problematic aspects within parsing field, particularly its inefficiency...

10.48550/arxiv.2308.09003 preprint EN other-oa arXiv (Cornell University) 2023-01-01

With the tremendous log volume generated by modern systems, automated analysis becomes indispensable for discovering crucial insights into behavior of running systems. The foremost step subsumed in an pipeline, called parsing, significantly influences its entire performance. Despite significance, parsing lacks quality implementations and, practice, suffers from fundamental limitations, thereby creating a bottleneck valuable at line level. As consequence, my PhD thesis, I endeavor to explore...

10.1109/issrew60843.2023.00036 article EN 2023-10-09

Machine learning is becoming a key technology to make systems smarter and more powerful. Unfortunately, training large capable ML models resource-intensive requires high operational skills. Serverless computing an emerging paradigm for structuring applications benefit from on-demand resources achieve horizontal scalability while making easier consume. As such, it ideal substrate the often ad-hoc task of deep has strong potential democratize access techniques. However, design serverless...

10.1145/3631310.3633489 article EN cc-by 2023-12-11
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