S. Safavi

Publications
Influence

Human Dietary Exposure to Fumonisin B1 from Iranian Maize Harvested During 1998–2000

H. Yazdanpanah, G. Shephard, +5 authors S. A. Ghiasian
Biology, Medicine
Mycopathologia
1 June 2006

Fumonisin B1 (FB1) is the most abundant of the fumonisin mycotoxins, mainly produced in maize by F. verticillioides and F. proliferatum. A previous study on the FB1 contamination of maize harvested… Expand

Revisiting Finite-Time Distributed Algorithms via Successive Nulling of Eigenvalues

S. Safavi, Usman A. Khan
Mathematics, Computer Science
IEEE Signal Processing Letters
2015

We derive distributed iterations that are a function of a linear operator on the underlying graph and show that any arbitrary initial condition can be forced to lie on a particular subspace in a finite time. Expand

Distributed Localization: A Linear Theory

S. Safavi, Usman A. Khan, S. Kar, José M. F. Moura
Computer Science
Proceedings of the IEEE
22 May 2018

This paper discusses distributed localization in a 5G-enabled IoT environment where many low power devices, users, or agents are to locate themselves without a direct access to anchors. Expand

An Opportunistic Linear–Convex Algorithm for Localization in Mobile Robot Networks

S. Safavi, Usman A. Khan
Computer Science
IEEE Transactions on Robotics
19 March 2017

In this paper, we develop a distributed algorithm to localize a network of robots moving arbitrarily in a bounded region and show that it asymptotically converges to the true locations of the robots. Expand

Localization in Mobile Networks via Virtual Convex Hulls

S. Safavi, Usman A. Khan
Computer Science, Mathematics
IEEE Transactions on Signal and Information…
6 April 2015

We introduce the notion of a virtual convex hull, which forms the basis of a distributed algorithm to localize an arbitrary number of agents moving in a bounded region of interest. Expand

Asymptotic stability of stochastic LTV systems with applications to distributed dynamic fusion

S. Safavi, Usman A. Khan
Computer Science, Mathematics
ArXiv
26 December 2014

In this paper, we investigate asymptotic stability of linear time-varying systems with (sub-) stochastic system matrices. Expand

Leader-Follower Consensus in Mobile Sensor Networks

S. Safavi, Usman A. Khan
Computer Science
IEEE Signal Processing Letters
27 August 2015

In this letter, we study the consensus-based leader-follower algorithm in mobile sensor networks, where the goal for the entire network is to converge to the state of a leader. Expand

An Explicit Convergence Rate for Nesterov's Method from SDP

S. Safavi, Bikash Joshi, Guilherme França, José Bento
Mathematics, Computer Science
IEEE International Symposium on Information…
13 January 2018

The framework of Integral Quadratic Constraints (IQC) reduces the computation of upper bounds on the convergence rate of several optimization algorithms to semi-definite programming (SDP). Expand

Unbounded connectivity: Asymptotic stability criteria for stochastic LTV systems

S. Safavi, Usman A. Khan
Mathematics, Computer Science
American Control Conference (ACC)
6 July 2016

We study asymptotic stability of Linear Time-Varying (LTV) systems with (sub-) stochastic system matrices. Expand

Asymptotic Stability of LTV Systems With Applications to Distributed Dynamic Fusion

S. Safavi, Usman A. Khan
Mathematics, Computer Science
IEEE Transactions on Automatic Control
5 January 2017

We investigate the behavior of Linear Time-Varying (LTV) systems with randomly appearing, sub-stochastic system matrices. Expand

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