Search Results for author: Mohammad Zamani

Found 6 papers, 0 papers with code

Learning Safety Filters for Unknown Discrete-Time Linear Systems

no code implementations1 Nov 2021 Farhad Farokhi, Alex S. Leong, Mohammad Zamani, Iman Shames

A learning-based safety filter is developed for discrete-time linear time-invariant systems with unknown models subject to Gaussian noises with unknown covariance.

An expressiveness hierarchy of Behavior Trees and related architectures

no code implementations16 Apr 2021 Oliver Biggar, Mohammad Zamani, Iman Shames

In this paper we provide a formal framework for comparing the expressive power of Behavior Trees (BTs) to other action selection architectures.

Safe Learning of Uncertain Environments

no code implementations2 Mar 2021 Farhad Farokhi, Alex Leong, Iman Shames, Mohammad Zamani

We show that with an arbitrarily large probability we can guarantee that the state will remain in the safe set, while learning and control are carried out simultaneously, provided that a feasible solution exists for the optimization problem.

On modularity in reactive control architectures, with an application to formal verification

no code implementations28 Aug 2020 Oliver Biggar, Mohammad Zamani, Iman Shames

We use a Linear Temporal Logic-based verification scheme to verify the correctness of this structure, and then show how one can modify modules while preserving its correctness.

A principled analysis of Behavior Trees and their generalisations

no code implementations27 Aug 2020 Oliver Biggar, Mohammad Zamani, Iman Shames

As complex autonomous robotic systems become more widespread, the need for transparent and reusable Artificial Intelligence (AI) designs becomes more apparent.

Decision Making

Suicide Risk Assessment with Multi-level Dual-Context Language and BERT

no code implementations WS 2019 Matthew Matero, Akash Idnani, Youngseo Son, Salvatore Giorgi, Huy Vu, Mohammad Zamani, Parth Limbachiya, Sharath Ch Guntuku, ra, H. Andrew Schwartz

Mental health predictive systems typically model language as if from a single context (e. g. Twitter posts, status updates, or forum posts) and often limited to a single level of analysis (e. g. either the message-level or user-level).

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