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Multistage stochastic programming deals with operational and planning problems that involve a sequence of decisions over time while responding to realizations that are uncertain. Algorithms designed to address multistage stochastic linear…

Optimization and Control · Mathematics 2020-10-26 Harsha Gangammanavar , Suvrajeet Sen

The Nystr\"om method has long been popular for scaling up kernel methods. Its theoretical guarantees and empirical performance rely critically on the quality of the landmarks selected. We study landmark selection for Nystr\"om using…

Machine Learning · Computer Science 2016-05-31 Chengtao Li , Stefanie Jegelka , Suvrit Sra

We investigate the limiting behavior of discrete determinantal point processes (DPPs) towards continuous DPPs when the size of the set to sample from goes to infinity. We propose a non-asymptotic characterization of this limit in terms of…

Probability · Mathematics 2026-03-03 Hugo Jaquard , Nicolas Keriven

To handle different types of Many-Objective Optimization Problems (MaOPs), Many-Objective Evolutionary Algorithms (MaOEAs) need to simultaneously maintain convergence and population diversity in the high-dimensional objective space. In…

Neural and Evolutionary Computing · Computer Science 2020-12-16 Peng Zhang , Jinlong Li , Tengfei Li , Huanhuan Chen

Rare event sampling algorithms are essential for understanding processes that occur infrequently on the molecular scale, yet they are important for the long-time dynamics of complex molecular systems. One of these algorithms, transition…

Computational Physics · Physics 2025-06-19 Sebastian Falkner , Alessandro Coretti , Baron Peters , Peter G. Bolhuis , Christoph Dellago

Sampling methods that choose a subset of the data proportional to its diversity in the feature space are popular for data summarization. However, recent studies have noted the occurrence of bias (under- or over-representation of a certain…

Machine Learning · Computer Science 2018-02-13 L. Elisa Celis , Vijay Keswani , Damian Straszak , Amit Deshpande , Tarun Kathuria , Nisheeth K. Vishnoi

The key to personalized recommendation is to predict a personalized ranking on a catalog of items by modeling the user's preferences. There are many personalized ranking approaches for item recommendation from implicit feedback like…

Information Retrieval · Computer Science 2024-06-25 Yuli Liu , Christian Walder , Lexing Xie

Denoising Diffusion Probabilistic Models (DDPMs) have emerged as a powerful family of generative models that can yield high-fidelity samples and competitive log-likelihoods across a range of domains, including image and speech synthesis.…

Machine Learning · Computer Science 2021-06-08 Daniel Watson , Jonathan Ho , Mohammad Norouzi , William Chan

Piecewise deterministic Markov processes (PDMPs) are a class of continuous-time Markov processes that were recently used to develop a new class of Markov chain Monte Carlo algorithms. However, the implementation of the processes is…

Computation · Statistics 2024-08-08 Charly Andral , Kengo Kamatani

We analyze several optimal transportation problems between de-terminantal point processes. We show how to estimate some of the distances between distributions of DPP they induce. We then apply these results to evaluate the accuracy of a new…

Data Structures and Algorithms · Computer Science 2020-11-03 Laurent Decreusefond , Guillaume Moroz

Emerged as one of the best performing techniques for extractive summarization, determinantal point processes select the most probable set of sentences to form a summary according to a probability measure defined by modeling sentence…

Computation and Language · Computer Science 2019-10-28 Sangwoo Cho , Chen Li , Dong Yu , Hassan Foroosh , Fei Liu

We introduce new smoothing estimators for complex signals on graphs, based on a recently studied Determinantal Point Process (DPP). These estimators are built from subsets of edges and nodes drawn according to this DPP, making up trees and…

A formulation for the automated generation of algorithms via mathematical programming (optimization) is proposed. The formulation is based on the concept of optimizing within a parameterized family of algorithms, or equivalently a family of…

Optimization and Control · Mathematics 2018-02-14 Alexander Mitsos , Jaromił Najman , Ioannis G. Kevrekidis

This paper considers a distributed stochastic optimization problem where the goal is to minimize the time average of a cost function subject to a set of constraints on the time averages of a related stochastic processes called penalties. We…

Information Theory · Computer Science 2016-10-06 B. N. Bharath , Vaishali P

Deep learning architectures with a huge number of parameters are often compressed using pruning techniques to ensure computational efficiency of inference during deployment. Despite multitude of empirical advances, there is a lack of…

Machine Learning · Computer Science 2021-06-14 Rupam Acharyya , Ankani Chattoraj , Boyu Zhang , Shouman Das , Daniel Stefankovic

We obtain the almost sure strong consistency and the Berry-Esseen type bound for the maximum likelihood estimator Ln of the ensemble L for determinantal point processes (DPPs), strengthening and completing previous work initiated in Brunel,…

Statistics Theory · Mathematics 2024-07-10 Yaozhong Hu , Haiyi Shi

In this paper we derive and analyze two algorithms -- referred to as decentralized power method (DPM) and decentralized Lanczos algorithm (DLA) -- for distributed computation of one (the largest) or multiple eigenvalues of a sample…

Distributed, Parallel, and Cluster Computing · Computer Science 2013-03-29 Federico Penna , Slawomir Stanczak

The maximum a posteriori (MAP) inference for determinantal point processes (DPPs) is crucial for selecting diverse items in many machine learning applications. Although DPP MAP inference is NP-hard, the greedy algorithm often finds…

Data Structures and Algorithms · Computer Science 2022-06-14 Shinichi Hemmi , Taihei Oki , Shinsaku Sakaue , Kaito Fujii , Satoru Iwata

We study the Gibbs sampling algorithm for continuous determinantal point processes. We show that, given a warm start, the Gibbs sampler generates a random sample from a continuous $k$-DPP defined on a $d$-dimensional domain by only taking…

Machine Learning · Computer Science 2018-10-23 Shayan Oveis Gharan , Alireza Rezaei

We investigate ways in which an algorithm can improve its expected performance by fine-tuning itself automatically with respect to an unknown input distribution D. We assume here that D is of product type. More precisely, suppose that we…

Data Structures and Algorithms · Computer Science 2011-05-30 Nir Ailon , Bernard Chazelle , Kenneth L. Clarkson , Ding Liu , Wolfgang Mulzer , C. Seshadhri