Browsing by Author "Nalli, S."

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    (2015) Borkar, V.S.; Karnik, A.; Nair, J.; Nalli, S.
    We consider a variant of the gossip algorithm wherein a controller can influence the values at a subset of nodes as well as the averaging weights. This leads to three optimization problems: (i) Optimal choice of nodes: a combinatorial optimization problem for which we propose a nonlinear programming relaxation as well as a greedy heuristic; (ii) Parametric optimization of weights: a non-convex optimization for which we propose an effective heuristic for a special case; (iii) Dynamic adjustment of weights: an optimal control problem. For the dynamic case, we note some empirically observed interesting critical phenomena for the uncontrolled case. 1963-2012 IEEE.
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    Manufacturing Consent
    (Institute of Electrical and Electronics Engineers Inc., 2015) Borkar, V.S.; Karnik, A.; Nair, J.; Nalli, S.
    We consider a variant of the gossip algorithm wherein a controller can influence the values at a subset of nodes as well as the averaging weights. This leads to three optimization problems: (i) Optimal choice of nodes: a combinatorial optimization problem for which we propose a nonlinear programming relaxation as well as a greedy heuristic; (ii) Parametric optimization of weights: a non-convex optimization for which we propose an effective heuristic for a special case; (iii) Dynamic adjustment of weights: an optimal control problem. For the dynamic case, we note some empirically observed interesting critical phenomena for the uncontrolled case. © 1963-2012 IEEE.