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Beam test results of 3D pixel detectors constructed with poly-crystalline CVD diamond
(2019)PoS: Proceedings of Science ~ XXIX International Symposium on Lepton Photon Interactions at High Energies (LeptonPhoton2019)Conference Paper -
Variable Blade Tip Geometry Inserts for Combined Aerothermal Measurements for Bladed Disk Rotors
(2019)Proceedings of Global Power and Propulsion SocietyCost effective experimental testing in turbomachinery requires the integration of multiple geometries in one rotor. So-called rainbow designs, combined with fast response aerodynamic and entropy probes, allow for experimentally investigating different designs in a timely and cost effective manner. The investigation of new blade tip geometries is of particular interest, because tip leakage losses account for approximately one third of the ...Conference Paper -
Lowering the Latency of Data Processing Pipelines Through FPGA based Hardware Acceleration
(2019)Proceedings of the VLDB EndowmentWeb search engines often involve a complex pipeline of processing stages including computing, scoring, and ranking potential answers plus returning the sorted results. The latency of such pipelines can be improved by minimizing data movement, making stages faster, and merging stages. The throughput is determined by the stage with the smallest capacity and it can be improved by allocating enough parallel resources to each stage. In this ...Conference Paper -
Strong consistency is not hard to get: Two-Phase Locking and Two-Phase Commit on Thousands of Cores
(2019)Proceedings of the VLDB EndowmentConcurrency control is a cornerstone of distributed database engines and storage systems. In pursuit of scalability, a common assumption is that Two-Phase Locking (2PL) and Two-Phase Commit (2PC) are not viable solutions due to their communication overhead. Recent results, however, have hinted that 2PL and 2PC might not have such a bad performance. Nevertheless, there has been no attempt to actually measure how a state-of-the-art ...Conference Paper -
Performance of the 3x1x1 m3 Dual Phase Liquid argon TPC
(2019)PoS: Proceedings of ScienceLiquid Argon Time Projection Chamber (LAr TPC) is currently one of the most attractive technologies for neutrino oscillation studies. Not only LAr TPCs are cost-effective and scalable to multi k-ton scales, but they are also excellent calorimeters and are able to 3D reconstruct the tracks of ionising particles arising from neutrino decay products. Future giant liquid Argon TPCs, at the scale of tens of k-ton level, are now at the design ...Conference Paper -
Opportunities for Data Management Research in the Era of Horizontal AI/ML
(2019)Proceedings of the VLDB EndowmentAI/ML is becoming a horizontal technology: its application is expanding to more domains, and its integration touches more parts of the technology stack. Given the strong dependence of ML on data, this expansion creates a new space for applying data management techniques. At the same time, the deeper integration of ML in the technology stack provides more touch points where ML can be used in data management systems and vice versa. In ...Conference Paper -
Ease.ml/ci and Ease.ml/meter in Action: Towards Data Management for Statistical Generalization
(2019)Proceedings of the VLDB EndowmentDeveloping machine learning (ML) applications is similar to developing traditional software-it is often an iterative process in which developers navigate within a rich space of requirements, design decisions, implementations, empirical quality, and performance. In traditional software development, software engineering is the field of study which provides principled guidelines for this iterative process. However, as of today, the counterpart ...Conference Paper -
doppioDB 2.0: Hardware Techniques for Improved Integration of Machine Learning into Databases
(2019)Proceedings of the VLDB EndowmentDatabase engines are starting to incorporate machine learning (ML) functionality as part of their repertoire. Machine learning algorithms, however, have very different characteristics than those of relational operators. In this demonstration, we explore the challenges that arise when integrating generalized linear models into a database engine and how to incorporate hardware accelerators into the execution, a tool now widely used for ML ...Conference Paper -
A Teaching System for Hands-on Quadcopter Control
(2019)IFAC-PapersOnLine ~ 12th IFAC Symposium on Advances in Control Education, ACE 2019. ProceedingsQuadcopters, popular in consumer and commercial applications, are a perfect testing ground for both basic and advanced control techniques. This makes them an ideal platform for offering experiment-based control courses. We present the software system developed to teach hands-on quadcopter control, that we have used to offer a short course to groups of 32 undergraduate electrical engineering students. Our system allows students to work ...Conference Paper -
Estimating the Impact of Design Automation: The Influence of Knowledge on Potential Estimation
(2019)Proceedings of the Design Society: International Conference on Engineering DesignAssessing the impact of design automation on design practice prior to its implementation is difficult and subject to uncertainties. One reason for this is the designers' lack of knowledge about design automation. In this work, an industrial case study focusing on conceptual design of hydraulic circuits is conducted to assess the impact of the designers' knowledge on design automation potential estimation. In particular, the impact of ...Conference Paper