Natural hazards are a driver of ecological dynamics as they alter individual species, community structure and entire ecosystems. Their ecological impact can be highly variable over space and time: perceived by some species as disastrous but vital for the survival of others. The ability of a system to cope with such events is called ecological resilience and depends on biotic and abiotic factors, as well as the disturbance legacies. With ...

The development of heterogeneous CPU-GPU systems for modern data centers in recent years increased the computational power massively. Multi-Instance GPUs (MIGs) allow to split a single physical GPU into multiple independent instances. Thus, more than one user can get exclusive acces to the same physical GPU. However, there are many different configurations for a single MIG-capable GPU that need to be controlled by a central instance. ...

With increasing intermittent distributed power generation, emergency situations in the power system are more likely to occur. Current emergency operation in power systems is mostly based on manual remedial actions. The growing number of distributed generation devices add complexity to emergency operation and make decisions on remedial actions harder. In this thesis, a feedback optimization (FO) controller for emergency power system operation ...

As deep learning is becoming increasingly costly, both in terms of computational power and storage power, many efforts have been invested in finding ways to reduce that cost. Especially in the transformer architecture, where the attention matrix grows quadratically with the sequence length, and it is in fact a lower triangular matrix. The value of implementing a fast triangular matrix matrix operator is thus highlighted. Here we ...

Climate change and its effects require effective solutions to mitigate and avoid greenhouse gas emissions. The Kyoto Protocol and the Paris Agreement translate global to Swiss mitigation targets, which bring in forests and timber as potential carbon sinks. However, it remains unclear how the sinks are best combined in a local context, especially when forest stands simultaneously fulfill multiple functions. As a result, there is a potential ...