no code implementations • 29 Jul 2023 • Xiaoshan Lin, Abbasali Koochakzadeh, Yasin Yazicioglu, Derya Aksaray
We propose an automata-theoretic approach for reinforcement learning (RL) under complex spatio-temporal constraints with time windows.
no code implementations • 17 Aug 2022 • Ali Tevfik Buyukkocak, Derya Aksaray
To this end, we formulate an optimal control problem that extracts state and input sequences by minimally violating the temporal requirements while achieving the desired predicates.
no code implementations • 7 Apr 2022 • Ali Tevfik Buyukkocak, Derya Aksaray, Yasin Yazıcıoğlu
We propose control barrier functions (CBFs) for a family of dynamical systems to satisfy a broad fragment of Signal Temporal Logic (STL) specifications, which may include subtasks with nested temporal operators or conflicting requirements (e. g., achieving multiple subtasks within the same time interval).
no code implementations • 26 Mar 2021 • Ali Tevfik Buyukkocak, Derya Aksaray, Yasin Yazıcıoğlu
We discuss the benefits of using the new predicates and illustrate them in a case study showing the influence of the new predicates on the trajectories of an autonomous robot.
no code implementations • 19 Feb 2021 • Derya Aksaray, Yasin Yazicioglu, Ahmet Semi Asarkaya
We propose a novel constrained reinforcement learning method for finding optimal policies in Markov Decision Processes while satisfying temporal logic constraints with a desired probability throughout the learning process.
Robotics Systems and Control Systems and Control
1 code implementation • L4DC 2020 • Harish Venkataraman, Derya Aksaray, Peter Seiler
Learning to satisfy STL specifications often needs a sufficient length of state history to compute reward and the next action.
no code implementations • 23 Sep 2016 • Derya Aksaray, Austin Jones, Zhaodan Kong, Mac Schwager, Calin Belta
This paper addresses the problem of learning optimal policies for satisfying signal temporal logic (STL) specifications by agents with unknown stochastic dynamics.
Systems and Control
2 code implementations • 13 Feb 2016 • Cristian-Ioan Vasile, Derya Aksaray, Calin Belta
This paper introduces time window temporal logic (TWTL), a rich expressivity language for describing various time bounded specifications.
Formal Languages and Automata Theory Logic in Computer Science