Search Results for author: Brian Karrer

Found 15 papers, 7 papers with code

D-Flow: Differentiating through Flows for Controlled Generation

no code implementations21 Feb 2024 Heli Ben-Hamu, Omri Puny, Itai Gat, Brian Karrer, Uriel Singer, Yaron Lipman

Taming the generation outcome of state of the art Diffusion and Flow-Matching (FM) models without having to re-train a task-specific model unlocks a powerful tool for solving inverse problems, conditional generation, and controlled generation in general.

Causal clustering: design of cluster experiments under network interference

no code implementations23 Oct 2023 Davide Viviano, Lihua Lei, Guido Imbens, Brian Karrer, Okke Schrijvers, Liang Shi

This paper studies the design of cluster experiments to estimate the global treatment effect in the presence of network spillovers.

Clustering

Generalized Schrödinger Bridge Matching

no code implementations3 Oct 2023 Guan-Horng Liu, Yaron Lipman, Maximilian Nickel, Brian Karrer, Evangelos A. Theodorou, Ricky T. Q. Chen

Modern distribution matching algorithms for training diffusion or flow models directly prescribe the time evolution of the marginal distributions between two boundary distributions.

Training-free Linear Image Inverses via Flows

no code implementations25 Sep 2023 Ashwini Pokle, Matthew J. Muckley, Ricky T. Q. Chen, Brian Karrer

Solving inverse problems without any training involves using a pretrained generative model and making appropriate modifications to the generation process to avoid finetuning of the generative model.

Privately generating tabular data using language models

1 code implementation7 Jun 2023 Alexandre Sablayrolles, Yue Wang, Brian Karrer

Privately generating synthetic data from a table is an important brick of a privacy-first world.

Language Modelling Sentence

Bounding Training Data Reconstruction in Private (Deep) Learning

1 code implementation28 Jan 2022 Chuan Guo, Brian Karrer, Kamalika Chaudhuri, Laurens van der Maaten

Differential privacy is widely accepted as the de facto method for preventing data leakage in ML, and conventional wisdom suggests that it offers strong protection against privacy attacks.

Efficient Nonmyopic Bayesian Optimization via One-Shot Multi-Step Trees

1 code implementation NeurIPS 2020 Shali Jiang, Daniel R. Jiang, Maximilian Balandat, Brian Karrer, Jacob R. Gardner, Roman Garnett

In this paper, we provide the first efficient implementation of general multi-step lookahead Bayesian optimization, formulated as a sequence of nested optimization problems within a multi-step scenario tree.

Bayesian Optimization Decision Making

BoTorch: A Framework for Efficient Monte-Carlo Bayesian Optimization

2 code implementations NeurIPS 2020 Maximilian Balandat, Brian Karrer, Daniel R. Jiang, Samuel Daulton, Benjamin Letham, Andrew Gordon Wilson, Eytan Bakshy

Bayesian optimization provides sample-efficient global optimization for a broad range of applications, including automatic machine learning, engineering, physics, and experimental design.

Experimental Design

The decoupled extended Kalman filter for dynamic exponential-family factorization models

no code implementations26 Jun 2018 Carlos Alberto Gomez-Uribe, Brian Karrer

Motivated by the needs of online large-scale recommender systems, we specialize the decoupled extended Kalman filter (DEKF) to factorization models, including factorization machines, matrix and tensor factorization, and illustrate the effectiveness of the approach through numerical experiments on synthetic and on real-world data.

Recommendation Systems

Constrained Bayesian Optimization with Noisy Experiments

no code implementations21 Jun 2017 Benjamin Letham, Brian Karrer, Guilherme Ottoni, Eytan Bakshy

Randomized experiments are the gold standard for evaluating the effects of changes to real-world systems.

Bayesian Optimization

Coauthorship and citation in scientific publishing

1 code implementation1 Apr 2013 Travis Martin, Brian Ball, Brian Karrer, M. E. J. Newman

A large number of published studies have examined the properties of either networks of citation among scientific papers or networks of coauthorship among scientists.

Digital Libraries Social and Information Networks Physics and Society

The Anatomy of the Facebook Social Graph

no code implementations18 Nov 2011 Johan Ugander, Brian Karrer, Lars Backstrom, Cameron Marlow

Second, by studying the average local clustering coefficient and degeneracy of graph neighborhoods, we show that while the Facebook graph as a whole is clearly sparse, the graph neighborhoods of users contain surprisingly dense structure.

Social and Information Networks Physics and Society

An efficient and principled method for detecting communities in networks

1 code implementation18 Apr 2011 Brian Ball, Brian Karrer, M. E. J. Newman

We show how the method can be implemented using a fast, closed-form expectation-maximization algorithm that allows us to analyze networks of millions of nodes in reasonable running times.

Social and Information Networks Statistical Mechanics Physics and Society

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