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- Esther M. Arkin, Aritra Banik, +4 authors Marina Simakov
- CCCG
- 2015

Let P = {C 1 , C 2 ,. .. , C n } be a set of color classes, where each color class C i consists of a set of points. In this paper , we address a family of covering problems, in which one is allowed to cover at most one point from each color class. We prove that the problems in this family are NP-complete (or NP-hard) and offer several constant-factor… (More)

- Esther M. Arkin, Aritra Banik, +4 authors Marina Simakov
- ISAAC
- 2015

- Rom Aschner, Gui Citovsky, Matthew J. Katz
- ALGOSENSORS
- 2014

We introduce the SINR k model, which is a practical version of the SINR (signal to interference plus noise ratio) model. In the SINR k model, in order to determine whether s's signal is received at c, where s is a sender and c is a receiver, one only considers the k most significant senders w.r.t. to c (other than s). Assuming uniform power, these are the k… (More)

- Gui Citovsky, Tyler Mayer, Joseph S. B. Mitchell
- ArXiv
- 2017

In this paper we study a natural special case of the Traveling Salesman Problem (TSP) with point-locational-uncertainty which we will call the adversarial TSP problem (ATSP). Given a metric space (X, d) and a set of subsets R = {R1, R2, ..., Rn} : Ri ⊆ X, the goal is to devise an ordering of the regions, σR, that the tour will visit such that when a single… (More)

- Gui Citovsky, Sergio Focardi
- Front. Appl. Math. Stat.
- 2015

Citation: Citovsky G and Focardi S (2015) A novel view of suprathreshold stochastic resonance and its applications to financial markets. We introduce an original application of Suprathreshold Stochastic Resonance (SSR). Given a noise-corrupted signal, we induce SSR in effort to filter the effect of the corrupting noise. This will yield a clearer version of… (More)

In this paper we consider a type of surveillance problem, which has been widely studied. Unlike [1] [2], which only maximize the time an evader is seen until it is first out of a tracker's vision, we try to maximize the total time an evader is seen as it moves on a known trajectory to its destination.

- Gui Citovsky, Jie Gao, Joseph S. B. Mitchell, Jiemin Zeng
- ALGOSENSORS
- 2015

We consider the fundamental problem of scheduling data mules for managing a wireless sensor network. A data mule tours around a sensor network and can help with network maintenance such as data collection and battery recharging/replacement. We assume that each sensor has a fixed data generation rate and a capacity (upper bound on storage size). If the data… (More)

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