Search Results for author: Milan Vojnovic

Found 14 papers, 7 papers with code

Rotting Infinitely Many-armed Bandits beyond the Worst-case Rotting: An Adaptive Approach

no code implementations22 Apr 2024 Jung-hun Kim, Milan Vojnovic, Se-Young Yun

In this study, we consider the infinitely many armed bandit problems in rotting environments, where the mean reward of an arm may decrease with each pull, while otherwise, it remains unchanged.

On the convergence of loss and uncertainty-based active learning algorithms

no code implementations21 Dec 2023 Daniel Haimovich, Dima Karamshuk, Fridolin Linder, Niek Tax, Milan Vojnovic

This includes demonstrating convergence rate guarantees for loss-based sampling with various loss functions.

Active Learning

Rotting Infinitely Many-armed Bandits

1 code implementation31 Jan 2022 Jung-hun Kim, Milan Vojnovic, Se-Young Yun

We consider the infinitely many-armed bandit problem with rotting rewards, where the mean reward of an arm decreases at each pull of the arm according to an arbitrary trend with maximum rotting rate $\varrho=o(1)$.

Scheduling Servers with Stochastic Bilinear Rewards

1 code implementation13 Dec 2021 Jung-hun Kim, Milan Vojnovic

In this paper, we study scheduling in multi-class, multi-server queueing systems with stochastic rewards of job-server assignments following a bilinear model in feature vectors characterizing jobs and servers.

Scheduling

Pure Exploration and Regret Minimization in Matching Bandits

no code implementations31 Jul 2021 Flore Sentenac, Jialin Yi, Clément Calauzènes, Vianney Perchet, Milan Vojnovic

Finding an optimal matching in a weighted graph is a standard combinatorial problem.

Scheduling Jobs with Stochastic Holding Costs

1 code implementation NeurIPS 2021 Dabeen Lee, Milan Vojnovic

Our numerical results demonstrate the efficacy of our algorithms and show that our regret analysis is nearly tight.

Scheduling

Test Score Algorithms for Budgeted Stochastic Utility Maximization

1 code implementation30 Dec 2020 Dabeen Lee, Milan Vojnovic, Se-Young Yun

Motivated by recent developments in designing algorithms based on individual item scores for solving utility maximization problems, we study the framework of using test scores, defined as a statistic of observed individual item performance data, for solving the budgeted stochastic utility maximization problem.

Accelerated MM Algorithms for Ranking Scores Inference from Comparison Data

1 code implementation1 Jan 2019 Milan Vojnovic, Se-Young Yun, Kaifang Zhou

In this paper, we study a popular method for inference of the Bradley-Terry model parameters, namely the MM algorithm, for maximum likelihood estimation and maximum a posteriori probability estimation.

Bayesian Inference

KONG: Kernels for ordered-neighborhood graphs

1 code implementation NeurIPS 2018 Moez Draief, Konstantin Kutzkov, Kevin Scaman, Milan Vojnovic

We present novel graph kernels for graphs with node and edge labels that have ordered neighborhoods, i. e. when neighbor nodes follow an order.

Adaptive Matching for Expert Systems with Uncertain Task Types

no code implementations2 Mar 2017 Virag Shah, Lennart Gulikers, Laurent Massoulie, Milan Vojnovic

To address this challenge, we develop a model of a task-expert matching system where a task is matched to an expert using not only the prior information about the task but also the feedback obtained from the past matches.

QSGD: Communication-Efficient SGD via Gradient Quantization and Encoding

2 code implementations NeurIPS 2017 Dan Alistarh, Demjan Grubic, Jerry Li, Ryota Tomioka, Milan Vojnovic

In this paper, we propose Quantized SGD (QSGD), a family of compression schemes which allow the compression of gradient updates at each node, while guaranteeing convergence under standard assumptions.

Image Classification Quantization +2

Streaming Min-max Hypergraph Partitioning

no code implementations NeurIPS 2015 Dan Alistarh, Jennifer Iglesias, Milan Vojnovic

In many applications, the data is of rich structure that can be represented by a hypergraph, where the data items are represented by vertices and the associations among items are represented by hyperedges.

Clustering hypergraph partitioning

SerialRank: Spectral Ranking using Seriation

no code implementations NeurIPS 2014 Fajwel Fogel, Alexandre d'Aspremont, Milan Vojnovic

Intuitively, the algorithm assigns similar rankings to items that compare similarly with all others.

Spectral Ranking using Seriation

no code implementations20 Jun 2014 Fajwel Fogel, Alexandre d'Aspremont, Milan Vojnovic

We first show that this spectral seriation algorithm recovers the true ranking when all pairwise comparisons are observed and consistent with a total order.

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