Micro aerial robots are applied extensively in today’s society and industry. In certain scenes where it is used for data collection like monitoring, inspection or patrolling, it is important to know the accurate position of the robot. In vision-based navigation scenarios, usually, the quadrotor equipped with a camera is controlled autonomously by a controller after the enduser sets up the goal and the flight region. In these cases, the ...

Seychelles faces a fast growth in car ownership. Infrastructure improvements cannot keep pace with the grown mobility demand, resulting in an increasing congestion problem during peak hours. This thesis aims to build a reliable microscopic traffic model for Seychelles’ main island Mahé. It focuses on motorized private transport. I used openly available map data to build a model in the open-source traffic simulation software SUMO. The traffic ...

This thesis integrates Snowflake to the ecosystem of RumbleDB, the query execution engine of the JSONiq query language for large, messy, and heterogeneous data. This enables RumbleDB to take advantage of major benefits provided by cloud-native database services such as usability, scalability, elasticity, and productivity, without performance compromise. Data independence achieved by RumbleDB make this integration possible. We only update ...

A right-angled Artin group is a group that admits a finite presentation where the only relations are commutators between two generators. We prove by giving an explicit construction that every right-angled Artin group occurs as a finite-index subgroup of the outer automorphism group of another right-angled Artin group. We furthermore show that the latter group can be chosen in such a way that the quotient is isomorphic to (Z/2Z)^N for some ...