13 citations · 21 across the 8 of their papers we have counts for
8 papers
Exact inference under the perfect phylogeny model
Surjyendu Ray, Bei Jia, Sam Safavi +4
Motivation: Many inference tools use the Perfect Phylogeny Model (PPM) to learn trees from noisy variant allele frequency (VAF) data. Learning in this setting is hard, and existing…
Efficient Projection onto the Perfect Phylogeny Model
Bei Jia, Surjyendu Ray, Sam Safavi +1
Several algorithms build on the perfect phylogeny model to infer evolutionary trees. This problem is particularly hard when evolutionary trees are inferred from the fraction of gen…
Tractable -Metrics for Multiple Graphs
Sam Safavi, José Bento
Graphs are used in almost every scientific discipline to express relations among a set of objects. Algorithms that compare graphs, and output a closeness score, or a correspondence…
Localization in internets of mobile agents: A linear approach
Sam Safavi, Usman A. Khan, Soummya Kar +1
Fifth generation~(5G) networks providing much higher bandwidth and faster data rates will allow connecting vast number of static and mobile devices, sensors, agents, users, machine…
An Explicit Convergence Rate for Nesterov's Method from SDP
Sam Safavi, Bikash Joshi, Guilherme França +1
The framework of Integral Quadratic Constraints (IQC) introduced by Lessard et al. (2014) reduces the computation of upper bounds on the convergence rate of several optimization al…
An opportunistic linear-convex algorithm for localization in mobile robot networks
Sam Safavi, Usman Khan
In this paper, we develop a \textcolor{black}{\emph{distributed}} algorithm to localize a network of robots moving arbitrarily in a bounded region. In the case of such mobile netwo…
Localization in mobile networks via virtual convex hulls
Sam Safavi, Usman A. Khan
In this paper, we develop a \textit{distributed} algorithm to localize an arbitrary number of agents moving in a bounded region of interest. We assume that the network contains \te…
Asymptotic stability of stochastic LTV systems with applications to distributed dynamic fusion
Sam Safavi, Usman A. Khan
In this paper, we investigate asymptotic stability of linear time-varying systems with (sub-) stochastic system matrices. Motivated by distributed dynamic fusion over networks of m…