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Open data for the crowd: an account of citizen science at ETH Library
(2019)LIBER QuarterlyThis paper gives an account of ETH Library’s combined strategy of implementing an open data policy and using crowdsourcing to improve metadata. Both activities go hand in hand and promote each other. ETH Library’s Image Archive was the first unit to provide content for free download in high resolution. This paved the way for a very successful crowdsourcing campaign during which citizen scientists located places, dated photographs, and ...Conference Paper -
Sensor and Software Technologies for Lip Pressure Measurements in Trumpet and Cornet Playing - from Lab to Classroom
(2015)Proceedings of the 12th Int. Conference on Sound and Music Computing (SMC-15) Maynooth, Ireland, July 30, 31 & August 1, 2015Conference Paper -
Gaze and feet as additional input modalities for interacting with geospatial interfaces
(2016)ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information SciencesGeographic Information Systems (GIS) are complex software environments and we often work with multiple tasks and multiple displays when we work with GIS. However, user input is still limited to mouse and keyboard in most workplace settings. In this project, we demonstrate how the use of gaze and feet as additional input modalities can overcome time-consuming and annoying mode switches between frequently performed tasks. In an iterative ...Conference Paper -
Dependence of Crater Formation in Dry EDM on Electrical Breakdown Mechanism
(2016)Procedia CIRP ~ 18th CIRP Conference on Electro Physical and Chemical Machining (ISEM XVIII)The research effort in dry electrical discharge machining (DEDM) has increased during the last years. The process has advantages in comparison with EDM in oil-based dielectric media, such as low tool electrode wear, thin recast layers on the work piece surface and much more environmentally friendly conditions. However, the plasma-material surface interactions involved in dry EDM are not properly explained yet. Therefore, a characterization ...Conference Paper -
Influence of the anode material on the breakdown behavior in dry electrical eischarge machining
(2012)Procedia CIRP ~ Fifth CIRP Conference on High Performance Cutting 2012In the last years dry electrical discharge machining (DEDM) has been proposed as an alternative to the traditional EDM. The main reason for these efforts is the absence of a liquid dielectric which results in a simpler and environmentally friendly machine. This paper presents measurements of the material removal rate in function of different tool electrode and work piece material put in relation with the breakdown behavior of the process ...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 -
Development of a Reliable Packaging for CMOS-based Microelectrode Arrays by Using an Automated Setup
(2014)Procedia Engineering ~ EUROSENSORS 2014, the 28th European Conference on Solid-State TransducersWe present a reliable and versatile microelectrode-array-device-packaging method for use in neurobiological research. The new packaging is simple, user-friendly, durable, and obviates any contamination of the sensitive electrodes (Figure 1). The packaging consists of a custom-designed injection-molded polycarbonate ring that is bonded to the surface of the CMOS chip with a specifically selected biocompatible adhesive. The utilization of ...Conference Paper -
Image-to-image translation for enhanced feature matching, image retrieval and visual localization
(2019)ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information SciencesThe performance of machine learning and deep learning algorithms for image analysis depends significantly on the quantity and quality of the training data. The generation of annotated training data is often costly, time-consuming and laborious. Data augmentation is a powerful option to overcome these drawbacks. Therefore, we augment training data by rendering images with arbitrary poses from 3D models to increase the quantity of training ...Conference Paper -
Explaining Deep Neural Networks with a Polynomial Time Algorithm for Shapley Values Approximation
(2019)Proceedings of the 36th International Conference on Machine Learning (PMLR)The problem of explaining the behavior of deep neural networks has recently gained a lot of attention. While several attribution methods have been proposed, most come without strong theoretical foundations, which raises questions about their reliability. On the other hand, the literature on cooperative game theory suggests Shapley values as a unique way of assigning relevance scores such that certain desirable properties are satisfied. ...Conference Paper -
RF pulse flattening in the SwissFEL facility based on model-free iterative learning control
(2015)Proceedings of the 36th International Free Electron Laser Conference (FEL2014)This paper introduces an iterative approach to producing flat-topped radio frequency (RF) pulses for driving the pulsed linear accelerators in the Swiss free electron laser (SwissFEL). The method is based on model-free iterative learning control which iteratively updates the input pulse shape in order to generate the desired amplitude and phase pulses at the output of the RF system. The method has been successfully applied to the klystron ...Conference Paper