TY - JOUR AU - Kruse, Stephan AU - Serino, Laura AU - Folge, Patrick Fabian AU - Echeverria Oviedo, Dana AU - Bhattacharjee, Abhinandan AU - Stefszky, Michael AU - Scheytt, J. Christoph AU - Brecht, Benjamin AU - Silberhorn, Christine ID - 45485 IS - 14 JF - IEEE Photonics Technology Letters KW - Electrical and Electronic Engineering KW - Atomic and Molecular Physics KW - and Optics KW - Electronic KW - Optical and Magnetic Materials SN - 1041-1135 TI - A Pulsed Lidar System With Ultimate Quantum Range Accuracy VL - 35 ER - TY - CONF AU - Ködding, Patrick AU - Koldewey, Christian AU - Dumitrescu, Roman ID - 47836 T2 - Proceedings of the XXXII ISPIM Innovation Conference TI - A Reference Process Model for Scenario-based Foresight ER - TY - CHAP AU - Dieter, Peter ID - 46867 SN - 0302-9743 T2 - Lecture Notes in Computer Science TI - A Regret Policy for the Dynamic Vehicle Routing Problem with Time Windows ER - TY - CONF AU - Tölle, Laura AU - Slawinski, Elena AU - Fromm, Jennifer AU - Mirbabaie, Milad ID - 48228 TI - A Social Network Approach for Investigating Social Influences on Effective Use: Demonstration in Virtual Reality Collaboration ER - TY - JOUR AB - Classic automated algorithm selection (AS) for (combinatorial) optimization problems heavily relies on so-called instance features, i.e., numerical characteristics of the problem at hand ideally extracted with computationally low-demanding routines. For the traveling salesperson problem (TSP) a plethora of features have been suggested. Most of these features are, if at all, only normalized imprecisely raising the issue of feature values being strongly affected by the instance size. Such artifacts may have detrimental effects on algorithm selection models. We propose a normalization for two feature groups which stood out in multiple AS studies on the TSP: (a) features based on a minimum spanning tree (MST) and (b) nearest neighbor relationships of the input instance. To this end we theoretically derive minimum and maximum values for properties of MSTs and k-nearest neighbor graphs (NNG) of Euclidean graphs. We analyze the differences in feature space between normalized versions of these features and their unnormalized counterparts. Our empirical investigations on various TSP benchmark sets point out that the feature scaling succeeds in eliminating the effect of the instance size. A proof-of-concept AS-study shows promising results: models trained with normalized features tend to outperform those trained with the respective vanilla features. AU - Heins, Jonathan AU - Bossek, Jakob AU - Pohl, Janina AU - Seiler, Moritz AU - Trautmann, Heike AU - Kerschke, Pascal ID - 46310 JF - Theoretical Computer Science KW - Feature normalization KW - Algorithm selection KW - Traveling salesperson problem SN - 0304-3975 TI - A study on the effects of normalized TSP features for automated algorithm selection VL - 940 ER - TY - JOUR AB - We present a fully integrated radio frequency identifications transponder chip operating at 5.8 GHz, which is compatible with the class-1 generation-2 of the Electronic Product Code protocol (EPC-C1 G2). The tag chip including the analog front-end and the digital baseband processor, are designed in the sub-threshold regime (0.5 V) with a total supply current of less than 50 μA. As a power scavenging unit, a single-stage differential-drive rectifier structure is designed and fabricated with standard threshold voltage (SVT) MOS elements in a commercial 65-nm CMOS process, to provide 0.8 V of rectified voltage. Measurements performed on the fabricated single-stage structure show a maximum power conversion efficiency of 69.6% for a 22 kΩ load and a sensitivity of -12.5 dBm, which corresponds to more than 1 m of reading range. The power conversion efficiency at this range is about 64%. AU - Haddadian, Sanaz AU - Scheytt, J. Christoph AU - von Bögel, Gerd AU - Grenter, Thorben ID - 47009 JF - IEEE Journal of Radio Frequency Identification TI - A Sub-Threshold Microwave RFID Tag Chip, Compatible With RFID MIMO Reader Technology ER - TY - JOUR AU - Cieply, Jonas AU - Disselkamp, Jan-Philipp AU - Dyck, Florian AU - Alturk, Waddah AU - Kühn, Arno AU - Dumitrescu, Roman ID - 47803 JF - Procedia CIRP KW - General Medicine SN - 2212-8271 TI - A systematic literature review on the Digital Twin of the factory in the context of the product and factory lifecycle VL - 119 ER - TY - CONF AU - Cord-Landwehr, Tobias AU - Boeddeker, Christoph AU - Zorilă, Cătălin AU - Doddipatla, Rama AU - Haeb-Umbach, Reinhold ID - 47129 T2 - INTERSPEECH 2023 TI - A Teacher-Student Approach for Extracting Informative Speaker Embeddings From Speech Mixtures ER - TY - CONF AU - Ellermann, Kai AU - Asmar, Laban AU - Dumitrescu, Roman ID - 47807 T2 - ISPIM Conference Proceedings TI - A Technology Foresight Maturity Model ER - TY - JOUR AU - Westermann, Hendrik AU - Mahnken, Rolf ID - 44891 IS - 1 JF - PAMM KW - Electrical and Electronic Engineering KW - Atomic and Molecular Physics KW - and Optics SN - 1617-7061 TI - A thermodynamic framework for the phase‐field approach considering carbide precipitation during phase transformations VL - 22 ER -