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Typical layouts of river widening projects in Switzerland
(2023)Proceedings of the 40th IAHR World CongressDue to anthropogenic activities, many rivers in Switzerland and worldwide are highly degraded. Hence, they are limited in width, channelized, straightened, and the sediment budget is often strongly imbalanced due to sediment mining and damming, leading to sediment retention. Such rivers are characterized by decreased morphological heterogeneity and dynamics and substantial losses in riparian biodiversity. Based on regulations such as the ...Conference Paper -
Facial Emotion Recognition with Noisy Multi-task Annotations
(2021)2021 IEEE Winter Conference on Applications of Computer Vision (WACV)Human emotions can be inferred from facial expressions. However, the annotations of facial expressions are often highly noisy in common emotion coding models, including categorical and dimensional ones. To reduce human labelling effort on multi-task labels, we introduce a new problem of facial emotion recognition with noisy multi-task annotations. For this new problem, we suggest a formulation from the point of joint distribution match ...Conference Paper -
Workflows are the New Applications: Challenges in Performance, Portability, and Productivity
(2020)2020 IEEE/ACM International Workshop on Performance, Portability and Productivity in HPC (P3HPC)Great strides have been made to enable performance, portability, and productivity in HPC, but the focus has so far been on standalone applications and on-node programming models. Complex workflows comprising many communicating orchestrators, services, and simulations are redefining what modern HPC applications look like, and it is time to revisit what performance, portability, and performance mean when considered at the workflow level. ...Conference Paper -
Characterization of Subsurface Heat-Transport Processes in the Canton of Aargau Using an Integrative Workflow
(2021)Proceedings World Geothermal Congress 2020+1In a referendum in May 2017, Switzerland decided to phase out nuclear power in favor of further developing renewable energy sources. One of these energy sources is geothermal energy, which, as a base-load technology, fills a niche complementary to solar and wind energy. A known surface-heat-flow anomaly exists in the Canton of Aargau in Northern Switzerland. With measured specific heat-flow values of up to 140 mW m-2, it is an area of ...Conference Paper -
Update of Geothermal Development of Mongolia
(2021)Proceedings World Geothermal Congress 2020+1A first large scale detailed geophysical exploration work in Arkhangai province (a largest geothermal active zone) is done between 2019 and 2020. Based on the result of this geophysical exploration work a combined geothermal district heating and power production plant will be built in Arkhangai province in the coming few years. Ground source heat pump application is broadly introduced in the country using ground water and soil heating system.Conference Paper -
Fast Development of New Alloys for Metal Forming Using Additive Manufacturing
(2021)The Minerals, Metals & Materials Series ~ Forming the FutureThe industrial development of new materials in metal forming is a time consuming, iterative process. Although it is already being attempted to predict the properties of new materials using computational methods, experimental production and characterization must always be carried out. This typically involves casting of larger blocks of material, which are then processed to specimens. Particularly in the case of high-alloyed materials (e.g., ...Conference Paper -
Telling BERT's Full Story: from Local Attention to Global Aggregation
(2021)Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Main VolumeWe take a deep look into the behaviour of self-attention heads in the transformer architecture. In light of recent work discouraging the use of attention distributions for explaining a model’s behaviour, we show that attention distributions can nevertheless provide insights into the local behaviour of attention heads. This way, we propose a distinction between local patterns revealed by attention and global patterns that refer back to the ...Conference Paper -
Distributed lower bounds for ruling sets
(2020)2020 IEEE 61st Annual Symposium on Foundations of Computer Science (FOCS)Given a graph G=(V, E), an ( α, β )-ruling set is a subset S⊆V such that the distance between any two vertices in S is at least α, and the distance between any vertex in V and the closest vertex in S is at most β . We present lower bounds for distributedly computing ruling sets. More precisely, for the problem of computing a ( 2, β)-ruling set (and hence also any ( α, β )-ruling set with α>2 ) in the LOCAL model of distributed computing, ...Conference Paper -
Guided Super-Resolution As Pixel-to-Pixel Transformation
(2020)2019 IEEE/CVF International Conference on Computer Vision (ICCV)Conference Paper -
Comparing Metrics for Scenario-based Robustness Assessment of Building Performance
(2021)Journal of Physics: Conference SeriesReaching Swiss greenhouse gas emission reduction goals for the building sector requires effective renovation strategies [1]. Due to the energy performance gap (EPG), the building stock might not be decarbonised as expected [2]. Uncertain boundary conditions such as occupant behaviour, climatic conditions, and characteristics of energy system components lead to inaccurate predictions of operational emissions and decarbonization pathways. ...Conference Paper