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118 results on '"Tutsch, Dietmar"'

1. A Preprocessing and Postprocessing Voxel-based Method for LiDAR Semantic Segmentation Improvement in Long Distance

Author

Matteazzi, Andrea, Colling, Pascal, Arnold, Michael, and Tutsch, Dietmar

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

In recent years considerable research in LiDAR semantic segmentation was conducted, introducing several new state of the art models. However, most research focuses on single-scan point clouds, limiting performance especially in long distance outdoor scenarios, by omitting time-sequential information. Moreover, varying-density and occlusions constitute significant challenges in single-scan approaches. In this paper we propose a LiDAR point cloud preprocessing and postprocessing method. This multi-stage approach, in conjunction with state of the art models in a multi-scan setting, aims to solve those challenges. We demonstrate the benefits of our method through quantitative evaluation with the given models in single-scan settings. In particular, we achieve significant improvements in mIoU performance of over 5 percentage point in medium range and over 10 percentage point in far range. This is essential for 3D semantic scene understanding in long distance as well as for applications where offline processing is permissible.

Published
2024

2. STRV -- A radiation hard RISC-V microprocessor for high-energy physics applications

Author

Walsemann, Alexander, Karagounis, Michael, Stanitzki, Alexander, and Tutsch, Dietmar

Subjects
Electrical Engineering and Systems Science - Systems and Control, Physics - Instrumentation and Detectors
Abstract

While microprocessors are used in various applications, they are precluded from the use in high-energy physics applications due to the harsh radiation present. To overcome this limitation a microprocessor design must withstand high doses of radiation and mitigate radiation induced soft errors. A TMR protection scheme is applied to protect a RISC-V microprocessor core against these faults. The protection of the integrated SRAM by an independent scrubbing algorithm is discussed. Initial irradiation results and power consumption measurements of the radiation-resistant RISC-V microprocessor implemented in 65 nm CMOS technology are presented., Comment: TWEPP-2022 Proceedings

Published
2023
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3. Real-Time Audio Classification to Determine the Article of a German Noun

Author

Zaiss, Dena, Gilani, Iman Baghernejad Monavar, Tutsch, Dietmar, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Unger, Herwig, editor, and Schaible, Marcel, editor

Published
2023
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4. Software-Defined Networking with Prioritization for a Redundant Network Topology Called Double Wheel Topology

Author

Savvidis, Dimitrios, Marrek, Janis, Tutsch, Dietmar, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Unger, Herwig, editor, and Schaible, Marcel, editor

Published
2023
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12. A System for User Centered Classification and Ranking of Points of Interest Using Data Mining in Geographical Data Sets

Author

Barta, Maximilian, Farooghi, Dena, Tutsch, Dietmar, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Ahram, Tareq, editor

Published
2020
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17. Logical PetriNet A Tool to Model Digital Circuit Petri Nets and Transform them into Digital Circuits

Author

Brandau, Christoph, Tutsch, Dietmar, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, German, Reinhard, editor, Hielscher, Kai-Steffen, editor, and Krieger, Udo R., editor

Published
2018
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18. A DTMC Model for Performance Evaluation of Irregular Interconnection Networks with Asymmetric Spatial Traffic Distributions

Author

Lüdtke, Daniel, Tutsch, Dietmar, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Wittevrongel, Sabine, editor, and Phung-Duc, Tuan, editor

Published
2016
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19. The Doubly Linked Tree of Singly Linked Rings: Providing Hard Real-Time Database Operations on an FPGA.

Author

Lohmann, Simon and Tutsch, Dietmar

Subjects
DATABASES, TREE-rings, DATA structures, TREES
Abstract

We present a hardware data structure specifically designed for FPGAs that enables the execution of the hard real-time database CRUD operations using a hybrid data structure that combines trees and rings. While the number of rows and columns has to be limited for hard real-time execution, the actual content can be of any size. Our structure restricts full navigational freedom to every but the leaf layer, thus keeping the memory overhead for the data stored in the leaves low. Although its nodes differ in function, all have exactly the same size and structure, reducing the number of cascaded decisions required in the database operations. This enables fast and efficient hardware implementation on FPGAs. In addition to the usual comparison with known data structures, we also analyze the tradeoff between the memory consumption of our approach and a simplified version that is doubly linked in all layers. [ABSTRACT FROM AUTHOR]

Published
2024
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22. A Criteria Transformation Approach to Pattern Matching based on Non-Linear Parameter Optimization

Author

John Christian, Tutsch Dietmar, Lepich Thomas, Beitz Bernard, and Möller Reinhard

Subjects
pattern matching, non-linear parameter optimization, framework, Science, Electronic computers. Computer science, QA75.5-76.95
Abstract

This paper presents a concept for pattern matching based on a parameter optimization system for approximative numerical calculation of some parameter combination under soft and hard constraints. The concept uses a non-linear parameter optimization method with an iterative variation of parameters. The paper focuses on the information modeling process to migrate problem-domain specific criteria into optimization-compatible objects suitable for a standardized parameter optimization procedure. A step-by-step transformation process is presented and implemented in object-oriented programming: classes and interfaces. The method is applicable to a wide range of pattern-matching problems due to its flexibility and extensibility.

Published
2015
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23. Formal Models for Multicast Traffic in Network on Chip Architectures with Compositional High-Level Petri Nets

Author

Pelz, Elisabeth, Tutsch, Dietmar, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Rangan, C. Pandu, editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Kleijn, Jetty, editor, and Yakovlev, Alex, editor

Published
2007
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24. Information Extraction from Industrial Sensor Data Using Time Series Meta-Features.

Author

Grabowski, Niclas, Kremser, Ron, Düssel, Roman, Mulder, Albert, and Tutsch, Dietmar

Subjects
DATA mining, PRINCIPAL components analysis, TIME management, DETECTORS, MONITORING of machinery, AUTOMOBILE dashboards
Abstract

In the smart manufacturing sector, analyzing time series data is essential for monitoring plants and machinery to prevent costly failures or shutdowns. In order to gain new insights and make better control decisions, new methods are needed for extracting information and interpreting sensor data from hundreds of systems. In this paper, we present an approach for visualizing and interpreting sensor data from TRIMET Aluminium SE Essen (TAE) using time series meta-features and principal component analysis (PCA). We describe our general approach of generating multiple two-dimensional feature spaces to identify salient and implausible sensor data. Using a set of 20 time series meta-features, we applied our approach to sensor data from TAE which were generated by thermocouples. Each step of the approach was integrated into a dashboard to ensure a user-friendly and approachable interaction in finding salient and implausible sensor data. [ABSTRACT FROM AUTHOR]

Published
2023
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30. Static Evaluation of a Wheel-Topology for an SDN-based Network Usecase

Author

Savvidis, Dimitrios, Roth, Robert, and Tutsch, Dietmar

Subjects
Datennetz, ddc:004, 004 Datenverarbeitung, Informatik
Abstract

The increased occurrence of Software-Defined-Networking (SDN) not only improves the dynamics and maintenance of network architectures, but also opens up new use cases and application possibilities. Based on these observations, we propose a new network topology consisting of a star and a ring topology. This hybrid topology will be called wheel topology in this paper. We have considered the static characteristics of the wheel topology and compare them with known other topologies.

Published
2022

48. Traffic Prediction for NoCs using Fuzzy Logic

Author

Thomas, Gervin, Juurlink, Ben, and Tutsch, Dietmar

Subjects
ddc:004
Abstract

Proceedings DOI: 10.5445/KSP/1000021732 (https://doi.org/10.5445/KSP/1000021732) Networks on Chip provide faster communication and higher throughput for chip multiprocessor systems than conventional bus systems. Having multiple processing elements on one chip, however, leads to a large number of message transfers in the NoC. The consequence is that more blocking occurs and time and power is wasted with waiting until the congestion is dissolved. With knowledge of future communication patterns, blocking could be avoided. Therefore, in this paper a model is introduced to predict future communication patterns to avoid network congestion. Our model uses a fuzzy based algorithm to predict end-to-end communication. The presented model accurately predictions for up to 10 time intervals for continuous patterns. Communication patterns with non-continuous behaviors, such as fast changes from peak to zero, can also be predicted accurately for the next 1 to 2 time intervals to come. The model is a first step to predict future communication patterns. In addition, some limitations are identified that must be solved in order to improve the model.

Published
2011

50. Application layer traffic analysis of a Peer-to-Peer system

Author

Tutsch, Dietmar, Babin, Gilbert, and Kropf, Peter

Subjects
ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS
Abstract

Self-similar or multifractal behavior has been observed for LAN and Internet WAN (backbone) traffic. Investigations about this kind of behavior for application level protocols are rarely found because sessions or even applications are usually too short to be characterized in this direction. Only Telnet and FTP were examined so far. This paper analyzes the traffic shape of Peer-to-Peer (P2P) networks using the Gnutella protocol. Data was collected using a modified LimeWire servent. Self-similarity was estimated using a variance-time plot. The results show that Gnutella messages exhibit a self-similar shape, regardless of the message type.

Published
2010

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