[{"date_updated":"2022-01-06T06:52:50Z","author":[{"last_name":"Yan","full_name":"Yan, Hui","first_name":"Hui"},{"full_name":"Li, Zhaoshi","last_name":"Li","first_name":"Zhaoshi"},{"first_name":"Leibo","last_name":"Liu","full_name":"Liu, Leibo"},{"first_name":"Shouyi","last_name":"Yin","full_name":"Yin, Shouyi"},{"first_name":"Shaojun","full_name":"Wei, Shaojun","last_name":"Wei"}],"date_created":"2020-04-06T11:53:34Z","title":"Constructing Concurrent Data Structures on FPGA with Channels","doi":"10.1145/3289602.3293921","publication_identifier":{"isbn":["9781450361378"]},"publication_status":"published","year":"2019","citation":{"ieee":"H. Yan, Z. Li, L. Liu, S. Yin, and S. Wei, “Constructing Concurrent Data Structures on FPGA with Channels,” in <i>Proceedings of the 2019 ACM/SIGDA International Symposium on Field-Programmable Gate Arrays</i>, 2019.","chicago":"Yan, Hui, Zhaoshi Li, Leibo Liu, Shouyi Yin, and Shaojun Wei. “Constructing Concurrent Data Structures on FPGA with Channels.” In <i>Proceedings of the 2019 ACM/SIGDA International Symposium on Field-Programmable Gate Arrays</i>, 2019. <a href=\"https://doi.org/10.1145/3289602.3293921\">https://doi.org/10.1145/3289602.3293921</a>.","ama":"Yan H, Li Z, Liu L, Yin S, Wei S. Constructing Concurrent Data Structures on FPGA with Channels. In: <i>Proceedings of the 2019 ACM/SIGDA International Symposium on Field-Programmable Gate Arrays</i>. ; 2019. doi:<a href=\"https://doi.org/10.1145/3289602.3293921\">10.1145/3289602.3293921</a>","apa":"Yan, H., Li, Z., Liu, L., Yin, S., &#38; Wei, S. (2019). Constructing Concurrent Data Structures on FPGA with Channels. In <i>Proceedings of the 2019 ACM/SIGDA International Symposium on Field-Programmable Gate Arrays</i>. <a href=\"https://doi.org/10.1145/3289602.3293921\">https://doi.org/10.1145/3289602.3293921</a>","mla":"Yan, Hui, et al. “Constructing Concurrent Data Structures on FPGA with Channels.” <i>Proceedings of the 2019 ACM/SIGDA International Symposium on Field-Programmable Gate Arrays</i>, 2019, doi:<a href=\"https://doi.org/10.1145/3289602.3293921\">10.1145/3289602.3293921</a>.","short":"H. Yan, Z. Li, L. Liu, S. Yin, S. Wei, in: Proceedings of the 2019 ACM/SIGDA International Symposium on Field-Programmable Gate Arrays, 2019.","bibtex":"@inproceedings{Yan_Li_Liu_Yin_Wei_2019, title={Constructing Concurrent Data Structures on FPGA with Channels}, DOI={<a href=\"https://doi.org/10.1145/3289602.3293921\">10.1145/3289602.3293921</a>}, booktitle={Proceedings of the 2019 ACM/SIGDA International Symposium on Field-Programmable Gate Arrays}, author={Yan, Hui and Li, Zhaoshi and Liu, Leibo and Yin, Shouyi and Wei, Shaojun}, year={2019} }"},"_id":"16417","user_id":"61189","keyword":["pc2-harp-ressources"],"language":[{"iso":"eng"}],"publication":"Proceedings of the 2019 ACM/SIGDA International Symposium on Field-Programmable Gate Arrays","type":"conference","abstract":[{"lang":"eng","text":"The performance of High-Level Synthesis (HLS) applications with irregular data structures is limited by its imperative programming paradigm like C/C++. In this paper, we show that constructing concurrent data structures with channels, a programming construct derived from CSP (communicating sequential processes) paradigm, is an effective approach to improve the performance of these applications. We evaluate concurrent data structure for FPGA by synthesizing a K-means clustering algorithm on the Intel HARP2 platform. A fully pipelined KMC processing element can be synthesized from OpenCL with the help of a SPSC (single-producer-single-consumer) queue and stack built from channels, achieving 15.2x speedup over a sequential baseline. The number of processing element can be scaled up by leveraging a MPMC (multiple-producer-multiple-consumer) stack with work distribution for dynamic load balance. Evaluation shows that an additional 3.5x speedup can be achieved when 4 processing element is instantiated. These results show that the concurrent data structure built with channels has great potential for improving the parallelism of HLS applications. We hope that our study will stimulate further research into the potential of channel-based HLS."}],"status":"public"},{"publication":"Journal of Astronomical Instrumentation","type":"journal_article","status":"public","abstract":[{"lang":"eng","text":"<jats:p> Field-Programmable Gate Arrays (FPGAs) are widely used in the central signal processing design of the Square Kilometer Array (SKA) as hardware accelerators. The frequency domain acceleration search (FDAS) module is an important part of the SKA1-MID pulsar search engine. To develop for a yet to be finalized hardware, for cross-discipline interoperability and to achieve fast prototyping, OpenCL as a high-level FPGA synthesis approaches employed to create the sub-modules of FDAS. The FT convolution and the harmonic-summing plus some other minor sub-modules are elements in the FDAS module that have been well-optimized separately before. In this paper, we explore the design space of combining well-optimized designs, dealing with the ensuing need to trade-off and compromise. Pipeline computing is employed to handle multiple input arrays at high speed. The hardware target is to employ multiple high-end FPGAs to process the combined FDAS module. The results show interesting consequences, where the best individual solutions are not necessarily the best solutions for the speed of a pipeline where FPGA resources and memory bandwidth need to be shared. By proposing multiple buffering techniques to the pipeline, the combined FDAS module can achieve up to 2[Formula: see text] speedup over implementations without pipeline computing. We perform an extensive experimental evaluation on multiple high-end FPGA cards hosted in a workstation and compare to a technology comparable mid-range GPU. </jats:p>"}],"user_id":"61189","_id":"16420","language":[{"iso":"eng"}],"keyword":["pc2-harp-ressources"],"article_number":"1950008","publication_identifier":{"issn":["2251-1717","2251-1725"]},"publication_status":"published","citation":{"ama":"Wang H, Thiagaraj P, Sinnen O. Combining Multiple Optimized FPGA-based Pulsar Search Modules Using OpenCL. <i>Journal of Astronomical Instrumentation</i>. 2019. doi:<a href=\"https://doi.org/10.1142/s2251171719500089\">10.1142/s2251171719500089</a>","chicago":"Wang, Haomiao, Prabu Thiagaraj, and Oliver Sinnen. “Combining Multiple Optimized FPGA-Based Pulsar Search Modules Using OpenCL.” <i>Journal of Astronomical Instrumentation</i>, 2019. <a href=\"https://doi.org/10.1142/s2251171719500089\">https://doi.org/10.1142/s2251171719500089</a>.","ieee":"H. Wang, P. Thiagaraj, and O. Sinnen, “Combining Multiple Optimized FPGA-based Pulsar Search Modules Using OpenCL,” <i>Journal of Astronomical Instrumentation</i>, 2019.","mla":"Wang, Haomiao, et al. “Combining Multiple Optimized FPGA-Based Pulsar Search Modules Using OpenCL.” <i>Journal of Astronomical Instrumentation</i>, 1950008, 2019, doi:<a href=\"https://doi.org/10.1142/s2251171719500089\">10.1142/s2251171719500089</a>.","bibtex":"@article{Wang_Thiagaraj_Sinnen_2019, title={Combining Multiple Optimized FPGA-based Pulsar Search Modules Using OpenCL}, DOI={<a href=\"https://doi.org/10.1142/s2251171719500089\">10.1142/s2251171719500089</a>}, number={1950008}, journal={Journal of Astronomical Instrumentation}, author={Wang, Haomiao and Thiagaraj, Prabu and Sinnen, Oliver}, year={2019} }","short":"H. Wang, P. Thiagaraj, O. Sinnen, Journal of Astronomical Instrumentation (2019).","apa":"Wang, H., Thiagaraj, P., &#38; Sinnen, O. (2019). Combining Multiple Optimized FPGA-based Pulsar Search Modules Using OpenCL. <i>Journal of Astronomical Instrumentation</i>. <a href=\"https://doi.org/10.1142/s2251171719500089\">https://doi.org/10.1142/s2251171719500089</a>"},"year":"2019","date_created":"2020-04-06T12:00:06Z","author":[{"full_name":"Wang, Haomiao","last_name":"Wang","first_name":"Haomiao"},{"full_name":"Thiagaraj, Prabu","last_name":"Thiagaraj","first_name":"Prabu"},{"last_name":"Sinnen","full_name":"Sinnen, Oliver","first_name":"Oliver"}],"date_updated":"2022-01-06T06:52:50Z","doi":"10.1142/s2251171719500089","title":"Combining Multiple Optimized FPGA-based Pulsar Search Modules Using OpenCL"},{"publication_status":"published","publication_identifier":{"issn":["1999-4893"]},"citation":{"apa":"Faict, T., D’Hollander, E. H., &#38; Goossens, B. (2019). Mapping a Guided Image Filter on the HARP Reconfigurable Architecture Using OpenCL. <i>Algorithms</i>. <a href=\"https://doi.org/10.3390/a12080149\">https://doi.org/10.3390/a12080149</a>","short":"T. Faict, E.H. D’Hollander, B. Goossens, Algorithms (2019).","bibtex":"@article{Faict_D’Hollander_Goossens_2019, title={Mapping a Guided Image Filter on the HARP Reconfigurable Architecture Using OpenCL}, DOI={<a href=\"https://doi.org/10.3390/a12080149\">10.3390/a12080149</a>}, number={149}, journal={Algorithms}, author={Faict, Thomas and D’Hollander, Erik H. and Goossens, Bart}, year={2019} }","mla":"Faict, Thomas, et al. “Mapping a Guided Image Filter on the HARP Reconfigurable Architecture Using OpenCL.” <i>Algorithms</i>, 149, 2019, doi:<a href=\"https://doi.org/10.3390/a12080149\">10.3390/a12080149</a>.","ieee":"T. Faict, E. H. D’Hollander, and B. Goossens, “Mapping a Guided Image Filter on the HARP Reconfigurable Architecture Using OpenCL,” <i>Algorithms</i>, 2019.","chicago":"Faict, Thomas, Erik H. D’Hollander, and Bart Goossens. “Mapping a Guided Image Filter on the HARP Reconfigurable Architecture Using OpenCL.” <i>Algorithms</i>, 2019. <a href=\"https://doi.org/10.3390/a12080149\">https://doi.org/10.3390/a12080149</a>.","ama":"Faict T, D’Hollander EH, Goossens B. Mapping a Guided Image Filter on the HARP Reconfigurable Architecture Using OpenCL. <i>Algorithms</i>. 2019. doi:<a href=\"https://doi.org/10.3390/a12080149\">10.3390/a12080149</a>"},"year":"2019","date_created":"2020-04-06T12:08:24Z","author":[{"first_name":"Thomas","last_name":"Faict","full_name":"Faict, Thomas"},{"full_name":"D’Hollander, Erik H.","last_name":"D’Hollander","first_name":"Erik H."},{"last_name":"Goossens","full_name":"Goossens, Bart","first_name":"Bart"}],"date_updated":"2022-01-06T06:52:50Z","doi":"10.3390/a12080149","title":"Mapping a Guided Image Filter on the HARP Reconfigurable Architecture Using OpenCL","type":"journal_article","publication":"Algorithms","status":"public","abstract":[{"lang":"eng","text":"<jats:p>Intel recently introduced the Heterogeneous Architecture Research Platform, HARP. In this platform, the Central Processing Unit and a Field-Programmable Gate Array are connected through a high-bandwidth, low-latency interconnect and both share DRAM memory. For this platform, Open Computing Language (OpenCL), a High-Level Synthesis (HLS) language, is made available. By making use of HLS, a faster design cycle can be achieved compared to programming in a traditional hardware description language. This, however, comes at the cost of having less control over the hardware implementation. We will investigate how OpenCL can be applied to implement a real-time guided image filter on the HARP platform. In the first phase, the performance-critical parameters of the OpenCL programming model are defined using several specialized benchmarks. In a second phase, the guided image filter algorithm is implemented using the insights gained in the first phase. Both a floating-point and a fixed-point implementation were developed for this algorithm, based on a sliding window implementation. This resulted in a maximum floating-point performance of 135 GFLOPS, a maximum fixed-point performance of 430 GOPS and a throughput of HD color images at 74 frames per second.</jats:p>"}],"user_id":"61189","_id":"16422","language":[{"iso":"eng"}],"article_number":"149","keyword":["pc2-harp-ressources"]},{"publication":"The Journal of Supercomputing","type":"journal_article","status":"public","abstract":[{"lang":"eng","text":"Heterogeneous computing that exploits simultaneous co-processing with different device types has been shown to be effective at both increasing performance and reducing energy consumption. In this paper, we extend a scheduling framework encapsulated in a high-level C++ template and previously developed for heterogeneous chips comprising CPU and GPU cores, to new high-performance platforms for the data center, which include a cache coherent FPGA fabric and many-core CPU resources. Our goal is to evaluate the suitability of our framework with these new FPGA-based platforms, identifying performance benefits and limitations.We target the state-of-the-art HARP processor that includes 14 high-end Xeon classes tightly coupled to a FPGA device located in the same package. We select eight benchmarks from the high-performance computing domain that have been ported and optimized for this heterogeneous platform. The results show that a dynamic and adaptive scheduler that exploits simultaneous processing among the devices can improve performance up to a factor of 8 × compared to the best alternative solutions that only use the CPU cores or the FPGA fabric. Moreover, our proposal achieves up to 15% and 37% of improvement compared to the best heterogeneous solutions found with a dynamic and static schedulers, respectively."}],"user_id":"61189","_id":"16423","language":[{"iso":"eng"}],"keyword":["pc2-harp-ressources"],"publication_identifier":{"issn":["0920-8542","1573-0484"]},"publication_status":"published","citation":{"short":"A. Rodríguez, A. Navarro, R. Asenjo, F. Corbera, R. Gran, D. Suárez, J. Nunez-Yanez, The Journal of Supercomputing (2019).","mla":"Rodríguez, Andrés, et al. “Parallel Multiprocessing and Scheduling on the Heterogeneous Xeon+FPGA Platform.” <i>The Journal of Supercomputing</i>, 2019, doi:<a href=\"https://doi.org/10.1007/s11227-019-02935-1\">10.1007/s11227-019-02935-1</a>.","bibtex":"@article{Rodríguez_Navarro_Asenjo_Corbera_Gran_Suárez_Nunez-Yanez_2019, title={Parallel multiprocessing and scheduling on the heterogeneous Xeon+FPGA platform}, DOI={<a href=\"https://doi.org/10.1007/s11227-019-02935-1\">10.1007/s11227-019-02935-1</a>}, journal={The Journal of Supercomputing}, author={Rodríguez, Andrés and Navarro, Angeles and Asenjo, Rafael and Corbera, Francisco and Gran, Rubén and Suárez, Darío and Nunez-Yanez, Jose}, year={2019} }","apa":"Rodríguez, A., Navarro, A., Asenjo, R., Corbera, F., Gran, R., Suárez, D., &#38; Nunez-Yanez, J. (2019). Parallel multiprocessing and scheduling on the heterogeneous Xeon+FPGA platform. <i>The Journal of Supercomputing</i>. <a href=\"https://doi.org/10.1007/s11227-019-02935-1\">https://doi.org/10.1007/s11227-019-02935-1</a>","ama":"Rodríguez A, Navarro A, Asenjo R, et al. Parallel multiprocessing and scheduling on the heterogeneous Xeon+FPGA platform. <i>The Journal of Supercomputing</i>. 2019. doi:<a href=\"https://doi.org/10.1007/s11227-019-02935-1\">10.1007/s11227-019-02935-1</a>","chicago":"Rodríguez, Andrés, Angeles Navarro, Rafael Asenjo, Francisco Corbera, Rubén Gran, Darío Suárez, and Jose Nunez-Yanez. “Parallel Multiprocessing and Scheduling on the Heterogeneous Xeon+FPGA Platform.” <i>The Journal of Supercomputing</i>, 2019. <a href=\"https://doi.org/10.1007/s11227-019-02935-1\">https://doi.org/10.1007/s11227-019-02935-1</a>.","ieee":"A. Rodríguez <i>et al.</i>, “Parallel multiprocessing and scheduling on the heterogeneous Xeon+FPGA platform,” <i>The Journal of Supercomputing</i>, 2019."},"year":"2019","author":[{"first_name":"Andrés","last_name":"Rodríguez","full_name":"Rodríguez, Andrés"},{"first_name":"Angeles","last_name":"Navarro","full_name":"Navarro, Angeles"},{"last_name":"Asenjo","full_name":"Asenjo, Rafael","first_name":"Rafael"},{"full_name":"Corbera, Francisco","last_name":"Corbera","first_name":"Francisco"},{"last_name":"Gran","full_name":"Gran, Rubén","first_name":"Rubén"},{"last_name":"Suárez","full_name":"Suárez, Darío","first_name":"Darío"},{"last_name":"Nunez-Yanez","full_name":"Nunez-Yanez, Jose","first_name":"Jose"}],"date_created":"2020-04-06T12:09:25Z","date_updated":"2022-01-06T06:52:50Z","doi":"10.1007/s11227-019-02935-1","title":"Parallel multiprocessing and scheduling on the heterogeneous Xeon+FPGA platform"},{"title":"FPGA-Accelerated Optimistic Concurrency Control for Transactional Memory","doi":"10.1145/3352460.3358270","date_updated":"2022-01-06T06:52:50Z","author":[{"last_name":"Li","full_name":"Li, Zhaoshi","first_name":"Zhaoshi"},{"full_name":"Liu, Leibo","last_name":"Liu","first_name":"Leibo"},{"full_name":"Deng, Yangdong","last_name":"Deng","first_name":"Yangdong"},{"first_name":"Jiawei","full_name":"Wang, Jiawei","last_name":"Wang"},{"first_name":"Zhiwei","full_name":"Liu, Zhiwei","last_name":"Liu"},{"first_name":"Shouyi","full_name":"Yin, Shouyi","last_name":"Yin"},{"first_name":"Shaojun","last_name":"Wei","full_name":"Wei, Shaojun"}],"date_created":"2020-04-06T12:49:40Z","year":"2019","citation":{"ieee":"Z. Li <i>et al.</i>, “FPGA-Accelerated Optimistic Concurrency Control for Transactional Memory,” in <i>Proceedings of the 52nd Annual IEEE/ACM International Symposium on Microarchitecture</i>, 2019.","chicago":"Li, Zhaoshi, Leibo Liu, Yangdong Deng, Jiawei Wang, Zhiwei Liu, Shouyi Yin, and Shaojun Wei. “FPGA-Accelerated Optimistic Concurrency Control for Transactional Memory.” In <i>Proceedings of the 52nd Annual IEEE/ACM International Symposium on Microarchitecture</i>, 2019. <a href=\"https://doi.org/10.1145/3352460.3358270\">https://doi.org/10.1145/3352460.3358270</a>.","ama":"Li Z, Liu L, Deng Y, et al. FPGA-Accelerated Optimistic Concurrency Control for Transactional Memory. In: <i>Proceedings of the 52nd Annual IEEE/ACM International Symposium on Microarchitecture</i>. ; 2019. doi:<a href=\"https://doi.org/10.1145/3352460.3358270\">10.1145/3352460.3358270</a>","apa":"Li, Z., Liu, L., Deng, Y., Wang, J., Liu, Z., Yin, S., &#38; Wei, S. (2019). FPGA-Accelerated Optimistic Concurrency Control for Transactional Memory. In <i>Proceedings of the 52nd Annual IEEE/ACM International Symposium on Microarchitecture</i>. <a href=\"https://doi.org/10.1145/3352460.3358270\">https://doi.org/10.1145/3352460.3358270</a>","short":"Z. Li, L. Liu, Y. Deng, J. Wang, Z. Liu, S. Yin, S. Wei, in: Proceedings of the 52nd Annual IEEE/ACM International Symposium on Microarchitecture, 2019.","bibtex":"@inproceedings{Li_Liu_Deng_Wang_Liu_Yin_Wei_2019, title={FPGA-Accelerated Optimistic Concurrency Control for Transactional Memory}, DOI={<a href=\"https://doi.org/10.1145/3352460.3358270\">10.1145/3352460.3358270</a>}, booktitle={Proceedings of the 52nd Annual IEEE/ACM International Symposium on Microarchitecture}, author={Li, Zhaoshi and Liu, Leibo and Deng, Yangdong and Wang, Jiawei and Liu, Zhiwei and Yin, Shouyi and Wei, Shaojun}, year={2019} }","mla":"Li, Zhaoshi, et al. “FPGA-Accelerated Optimistic Concurrency Control for Transactional Memory.” <i>Proceedings of the 52nd Annual IEEE/ACM International Symposium on Microarchitecture</i>, 2019, doi:<a href=\"https://doi.org/10.1145/3352460.3358270\">10.1145/3352460.3358270</a>."},"publication_status":"published","publication_identifier":{"isbn":["9781450369381"]},"keyword":["pc2-harp-ressources"],"language":[{"iso":"eng"}],"_id":"16427","user_id":"61189","abstract":[{"text":"Transactional Memory (TM) has been considered as a promising alternative to existing synchronization operations, which are often the largest stumbling block to unleashing parallelism of applications. Efficient implementations of TM, however, are challenging due to the tension between lowering performance overhead and avoiding unnecessary aborts.\r\n\r\nIn this paper, we present Reachability-based Optimistic Concurrency Control for Transactional Memory (ROCoCoTM), a novel scheme which offloads concurrency control (CC) algorithms, the central building blocks of TM systems, to reconfigurable hardware. To reduce the abort rate, an innovative formalization of mainstream CC algorithms is developed to reveal a common restriction that leads to unnecessary aborts. This restriction is resolved by the ROCoCo algorithm with a centralized validation phase, which can be efficiently pipelined in hardware. Thanks to a high-performance offloading engine implemented in reconfigurable hardware, ROCoCo algorithm results in decreased abort rates and reduced performance overhead. The whole system is implemented on Intel's HARP2 platform and evaluated with the STAMP benchmark suite. Experiments show 1.55x and 8.05x geomean speedup over TinySTM and an HTM based on Intel TSX, respectively. Given the fast-growing deployment of commodity CPU-FPGA platforms, ROCoCoTM paves the way for software programmers to exploit heterogeneous computing resources with a high-level transactional abstraction to effectively extract the parallelism in modern applications.","lang":"eng"}],"status":"public","type":"conference","publication":"Proceedings of the 52nd Annual IEEE/ACM International Symposium on Microarchitecture"},{"status":"public","type":"conference","publication":"2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)","language":[{"iso":"eng"}],"_id":"16433","user_id":"69469","year":"2019","citation":{"ama":"Rehlaender P, Grote T, Tikhonov S, et al. A PCB Integrated Winding Using a Litz Structure for a Wireless Charging Coil. In: <i>2019 21st European Conference on Power Electronics and Applications (EPE ’19 ECCE Europe)</i>. ; 2019. doi:<a href=\"https://doi.org/10.23919/epe.2019.8914900\">10.23919/epe.2019.8914900</a>","chicago":"Rehlaender, Philipp, Tobias Grote, Sergey Tikhonov, Hugues Niejende, Frank Schafmeister, Joachim Bocker, and Peter Thiemann. “A PCB Integrated Winding Using a Litz Structure for a Wireless Charging Coil.” In <i>2019 21st European Conference on Power Electronics and Applications (EPE ’19 ECCE Europe)</i>, 2019. <a href=\"https://doi.org/10.23919/epe.2019.8914900\">https://doi.org/10.23919/epe.2019.8914900</a>.","ieee":"P. Rehlaender <i>et al.</i>, “A PCB Integrated Winding Using a Litz Structure for a Wireless Charging Coil,” in <i>2019 21st European Conference on Power Electronics and Applications (EPE ’19 ECCE Europe)</i>, 2019.","apa":"Rehlaender, P., Grote, T., Tikhonov, S., Niejende, H., Schafmeister, F., Bocker, J., &#38; Thiemann, P. (2019). A PCB Integrated Winding Using a Litz Structure for a Wireless Charging Coil. In <i>2019 21st European Conference on Power Electronics and Applications (EPE ’19 ECCE Europe)</i>. <a href=\"https://doi.org/10.23919/epe.2019.8914900\">https://doi.org/10.23919/epe.2019.8914900</a>","mla":"Rehlaender, Philipp, et al. “A PCB Integrated Winding Using a Litz Structure for a Wireless Charging Coil.” <i>2019 21st European Conference on Power Electronics and Applications (EPE ’19 ECCE Europe)</i>, 2019, doi:<a href=\"https://doi.org/10.23919/epe.2019.8914900\">10.23919/epe.2019.8914900</a>.","bibtex":"@inproceedings{Rehlaender_Grote_Tikhonov_Niejende_Schafmeister_Bocker_Thiemann_2019, title={A PCB Integrated Winding Using a Litz Structure for a Wireless Charging Coil}, DOI={<a href=\"https://doi.org/10.23919/epe.2019.8914900\">10.23919/epe.2019.8914900</a>}, booktitle={2019 21st European Conference on Power Electronics and Applications (EPE ’19 ECCE Europe)}, author={Rehlaender, Philipp and Grote, Tobias and Tikhonov, Sergey and Niejende, Hugues and Schafmeister, Frank and Bocker, Joachim and Thiemann, Peter}, year={2019} }","short":"P. Rehlaender, T. Grote, S. Tikhonov, H. Niejende, F. Schafmeister, J. Bocker, P. Thiemann, in: 2019 21st European Conference on Power Electronics and Applications (EPE ’19 ECCE Europe), 2019."},"publication_status":"published","publication_identifier":{"isbn":["9789075815313"]},"title":"A PCB Integrated Winding Using a Litz Structure for a Wireless Charging Coil","doi":"10.23919/epe.2019.8914900","date_updated":"2022-01-06T06:52:50Z","date_created":"2020-04-06T14:57:01Z","author":[{"first_name":"Philipp","last_name":"Rehlaender","id":"69469","full_name":"Rehlaender, Philipp"},{"full_name":"Grote, Tobias","last_name":"Grote","first_name":"Tobias"},{"full_name":"Tikhonov, Sergey","last_name":"Tikhonov","first_name":"Sergey"},{"full_name":"Niejende, Hugues","last_name":"Niejende","first_name":"Hugues"},{"full_name":"Schafmeister, Frank","last_name":"Schafmeister","first_name":"Frank"},{"first_name":"Joachim","last_name":"Bocker","full_name":"Bocker, Joachim"},{"first_name":"Peter","last_name":"Thiemann","full_name":"Thiemann, Peter"}]},{"title":"Analytical Topology Comparison for a Single Stage On-Board EV-Battery Converter","doi":"10.1109/isie.2019.8781222","date_updated":"2022-01-06T06:52:50Z","date_created":"2020-04-06T14:58:32Z","author":[{"first_name":"Philipp","last_name":"Rehlaender","full_name":"Rehlaender, Philipp","id":"69469"},{"first_name":"Frank","last_name":"Schafmeister","full_name":"Schafmeister, Frank"},{"first_name":"Joachim","full_name":"Bocker, Joachim","last_name":"Bocker"},{"first_name":"Tobias","full_name":"Grote, Tobias","last_name":"Grote"}],"year":"2019","citation":{"apa":"Rehlaender, P., Schafmeister, F., Bocker, J., &#38; Grote, T. (2019). Analytical Topology Comparison for a Single Stage On-Board EV-Battery Converter. In <i>2019 IEEE 28th International Symposium on Industrial Electronics (ISIE)</i>. <a href=\"https://doi.org/10.1109/isie.2019.8781222\">https://doi.org/10.1109/isie.2019.8781222</a>","short":"P. Rehlaender, F. Schafmeister, J. Bocker, T. Grote, in: 2019 IEEE 28th International Symposium on Industrial Electronics (ISIE), 2019.","bibtex":"@inproceedings{Rehlaender_Schafmeister_Bocker_Grote_2019, title={Analytical Topology Comparison for a Single Stage On-Board EV-Battery Converter}, DOI={<a href=\"https://doi.org/10.1109/isie.2019.8781222\">10.1109/isie.2019.8781222</a>}, booktitle={2019 IEEE 28th International Symposium on Industrial Electronics (ISIE)}, author={Rehlaender, Philipp and Schafmeister, Frank and Bocker, Joachim and Grote, Tobias}, year={2019} }","mla":"Rehlaender, Philipp, et al. “Analytical Topology Comparison for a Single Stage On-Board EV-Battery Converter.” <i>2019 IEEE 28th International Symposium on Industrial Electronics (ISIE)</i>, 2019, doi:<a href=\"https://doi.org/10.1109/isie.2019.8781222\">10.1109/isie.2019.8781222</a>.","ama":"Rehlaender P, Schafmeister F, Bocker J, Grote T. Analytical Topology Comparison for a Single Stage On-Board EV-Battery Converter. 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The models were trained on a data corpus collected from Indian news sources, but evaluated on data obtained from news sources from other countries as well, such as China. Our models have obtained competitive results and have scored 3rd in the event sentence detection task and 1st in the event extraction task based on average F1-scores for different test datasets."}],"volume":2380,"author":[{"full_name":"Skitalinskaya, Gabriella","last_name":"Skitalinskaya","first_name":"Gabriella"},{"first_name":"Jonas","last_name":"Klaff","full_name":"Klaff, Jonas"},{"orcid":"0000-0003-4364-1409","last_name":"Spliethöver","id":"84035","full_name":"Spliethöver, Maximilian","first_name":"Maximilian"}],"date_created":"2020-04-23T15:18:40Z","oa":"1","date_updated":"2022-01-06T06:52:57Z","main_file_link":[{"url":"http://ceur-ws.org/Vol-2380/paper_118.pdf","open_access":"1"}],"title":"CLEF ProtestNews Lab 2019: Contextualized Word Embeddings for Event Sentence Detection and Event Extraction","intvolume":"      2380","page":"7","citation":{"ama":"Skitalinskaya G, Klaff J, Spliethöver M. <i>CLEF ProtestNews Lab 2019: Contextualized Word Embeddings for Event Sentence Detection and Event Extraction</i>. Vol 2380. Lugano, Switzerland; 2019.","ieee":"G. Skitalinskaya, J. Klaff, and M. Spliethöver, <i>CLEF ProtestNews Lab 2019: Contextualized Word Embeddings for Event Sentence Detection and Event Extraction</i>, vol. 2380. Lugano, Switzerland, 2019.","chicago":"Skitalinskaya, Gabriella, Jonas Klaff, and Maximilian Spliethöver. <i>CLEF ProtestNews Lab 2019: Contextualized Word Embeddings for Event Sentence Detection and Event Extraction</i>. Vol. 2380. CEUR Workshop Proceedings. Lugano, Switzerland, 2019.","mla":"Skitalinskaya, Gabriella, et al. <i>CLEF ProtestNews Lab 2019: Contextualized Word Embeddings for Event Sentence Detection and Event Extraction</i>. Vol. 2380, 2019.","bibtex":"@book{Skitalinskaya_Klaff_Spliethöver_2019, place={Lugano, Switzerland}, series={CEUR Workshop Proceedings}, title={CLEF ProtestNews Lab 2019: Contextualized Word Embeddings for Event Sentence Detection and Event Extraction}, volume={2380}, author={Skitalinskaya, Gabriella and Klaff, Jonas and Spliethöver, Maximilian}, year={2019}, collection={CEUR Workshop Proceedings} }","short":"G. Skitalinskaya, J. Klaff, M. Spliethöver, CLEF ProtestNews Lab 2019: Contextualized Word Embeddings for Event Sentence Detection and Event Extraction, Lugano, Switzerland, 2019.","apa":"Skitalinskaya, G., Klaff, J., &#38; Spliethöver, M. (2019). <i>CLEF ProtestNews Lab 2019: Contextualized Word Embeddings for Event Sentence Detection and Event Extraction</i> (Vol. 2380). Lugano, Switzerland."},"place":"Lugano, Switzerland","year":"2019"},{"date_updated":"2022-01-06T06:52:57Z","author":[{"first_name":"Linus Matthias","last_name":"Witschen","id":"49051","full_name":"Witschen, Linus Matthias"},{"full_name":"Ghasemzadeh Mohammadi, Hassan","id":"61186","last_name":"Ghasemzadeh Mohammadi","first_name":"Hassan"},{"full_name":"Artmann, Matthias","last_name":"Artmann","first_name":"Matthias"},{"full_name":"Platzner, Marco","id":"398","last_name":"Platzner","first_name":"Marco"}],"date_created":"2020-04-25T08:02:07Z","title":"Jump Search: A Fast Technique for the Synthesis of Approximate Circuits","has_accepted_license":"1","publication_status":"accepted","year":"2019","page":"2","citation":{"apa":"Witschen, L. M., Ghasemzadeh Mohammadi, H., Artmann, M., &#38; Platzner, M. (n.d.). Jump Search: A Fast Technique for the Synthesis of Approximate Circuits. <i>Fourth Workshop on Approximate Computing (AxC 2019)</i>.","short":"L.M. Witschen, H. Ghasemzadeh Mohammadi, M. Artmann, M. Platzner, Fourth Workshop on Approximate Computing (AxC 2019) (n.d.).","bibtex":"@article{Witschen_Ghasemzadeh Mohammadi_Artmann_Platzner, title={Jump Search: A Fast Technique for the Synthesis of Approximate Circuits}, journal={Fourth Workshop on Approximate Computing (AxC 2019)}, author={Witschen, Linus Matthias and Ghasemzadeh Mohammadi, Hassan and Artmann, Matthias and Platzner, Marco} }","mla":"Witschen, Linus Matthias, et al. “Jump Search: A Fast Technique for the Synthesis of Approximate Circuits.” <i>Fourth Workshop on Approximate Computing (AxC 2019)</i>.","chicago":"Witschen, Linus Matthias, Hassan Ghasemzadeh Mohammadi, Matthias Artmann, and Marco Platzner. “Jump Search: A Fast Technique for the Synthesis of Approximate Circuits.” <i>Fourth Workshop on Approximate Computing (AxC 2019)</i>, n.d.","ieee":"L. M. Witschen, H. Ghasemzadeh Mohammadi, M. Artmann, and M. Platzner, “Jump Search: A Fast Technique for the Synthesis of Approximate Circuits,” <i>Fourth Workshop on Approximate Computing (AxC 2019)</i>. .","ama":"Witschen LM, Ghasemzadeh Mohammadi H, Artmann M, Platzner M. Jump Search: A Fast Technique for the Synthesis of Approximate Circuits. <i>Fourth Workshop on Approximate Computing (AxC 2019)</i>."},"_id":"16853","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"department":[{"_id":"78"}],"user_id":"49051","keyword":["Approximate computing","parameter selection","search space exploration","verification","circuit synthesis"],"ddc":["006"],"language":[{"iso":"eng"}],"file_date_updated":"2020-04-25T08:00:35Z","publication":"Fourth Workshop on Approximate Computing (AxC 2019)","type":"preprint","abstract":[{"lang":"eng","text":"State-of-the-art frameworks for generating approximate circuits usually rely on information gained through circuit synthesis and/or verification to explore the search space and to find an optimal solution. Throughout the process, a large number of circuits may be subject to processing, leading to considerable runtimes. In this work, we propose a search which takes error bounds and pre-computed impact factors into account to reduce the number of invoked synthesis and verification processes. In our experimental results, we achieved speed-ups of up to 76x while area savings remain comparable to the reference search method, simulated annealing."}],"status":"public","file":[{"content_type":"application/pdf","relation":"main_file","success":1,"creator":"witschen","date_created":"2020-04-25T08:00:35Z","date_updated":"2020-04-25T08:00:35Z","access_level":"closed","file_name":"AxC19_paper_3.pdf","file_id":"16854","file_size":152806}]},{"publisher":"Springer","date_updated":"2022-01-06T06:52:58Z","date_created":"2020-04-28T07:04:27Z","author":[{"full_name":"Atkins, Marc","last_name":"Atkins","first_name":"Marc"},{"full_name":"Gilroy, Bernard Michael","id":"175","last_name":"Gilroy","first_name":"Bernard Michael"},{"first_name":"Volker","full_name":"Seiler, Volker","last_name":"Seiler"}],"volume":54,"title":"New Dimensions of Service Offshoring in World Trade","issue":"2","year":"2019","citation":{"ama":"Atkins M, Gilroy BM, Seiler V. 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Seiler, Intereconomics 54 (2019) 120–126."},"intvolume":"        54","page":"120-126","_id":"16882","user_id":"26589","department":[{"_id":"203"}],"language":[{"iso":"eng"}],"type":"journal_article","publication":"Intereconomics","status":"public"},{"citation":{"bibtex":"@inbook{Gilroy_Golderbein_Peitz_Stöckmann_2019, title={The Impact of Monetary Policy on Investment Bank Profitability in Unequal Economies}, booktitle={Operations Research Proceedings 2018}, publisher={Springer}, author={Gilroy, Bernard Michael and Golderbein, Alexander and Peitz, Christian and Stöckmann, Nico}, editor={Fortz, B. and Labbé, M.Editors}, year={2019}, pages={201–208} }","mla":"Gilroy, Bernard Michael, et al. “The Impact of Monetary Policy on Investment Bank Profitability in Unequal Economies.” <i>Operations Research Proceedings 2018</i>, edited by B. Fortz and M. Labbé, Springer, 2019, pp. 201–08.","short":"B.M. Gilroy, A. Golderbein, C. Peitz, N. Stöckmann, in: B. Fortz, M. Labbé (Eds.), Operations Research Proceedings 2018, Springer, 2019, pp. 201–208.","apa":"Gilroy, B. M., Golderbein, A., Peitz, C., &#38; Stöckmann, N. (2019). The Impact of Monetary Policy on Investment Bank Profitability in Unequal Economies. In B. Fortz &#38; M. Labbé (Eds.), <i>Operations Research Proceedings 2018</i> (pp. 201–208). Springer.","chicago":"Gilroy, Bernard Michael, Alexander Golderbein, Christian Peitz, and Nico Stöckmann. “The Impact of Monetary Policy on Investment Bank Profitability in Unequal Economies.” In <i>Operations Research Proceedings 2018</i>, edited by B. Fortz and M. Labbé, 201–8. Springer, 2019.","ieee":"B. M. Gilroy, A. Golderbein, C. Peitz, and N. Stöckmann, “The Impact of Monetary Policy on Investment Bank Profitability in Unequal Economies,” in <i>Operations Research Proceedings 2018</i>, B. Fortz and M. Labbé, Eds. Springer, 2019, pp. 201–208.","ama":"Gilroy BM, Golderbein A, Peitz C, Stöckmann N. 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Springer; 2019:201-208."},"page":"201-208","year":"2019","author":[{"first_name":"Bernard Michael","full_name":"Gilroy, Bernard Michael","id":"175","last_name":"Gilroy"},{"id":"29629","full_name":"Golderbein, Alexander","last_name":"Golderbein","first_name":"Alexander"},{"id":"2980","full_name":"Peitz, Christian","last_name":"Peitz","first_name":"Christian"},{"last_name":"Stöckmann","full_name":"Stöckmann, Nico","id":"65503","first_name":"Nico"}],"date_created":"2020-04-28T07:06:24Z","date_updated":"2022-01-06T06:52:58Z","publisher":"Springer","title":"The Impact of Monetary Policy on Investment Bank Profitability in Unequal Economies","type":"book_chapter","publication":"Operations Research Proceedings 2018","status":"public","editor":[{"first_name":"B.","full_name":"Fortz, B.","last_name":"Fortz"},{"first_name":"M.","full_name":"Labbé, M.","last_name":"Labbé"}],"user_id":"26589","department":[{"_id":"203"}],"_id":"16883","language":[{"iso":"eng"}]},{"year":"2019","page":"287","citation":{"apa":"Krimphove, D., &#38; Peitz, C. 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