Search Results for author: Ayush Bharti

Found 6 papers, 3 papers with code

Bayesian Active Learning in the Presence of Nuisance Parameters

no code implementations23 Oct 2023 Sabina J. Sloman, Ayush Bharti, Julien Martinelli, Samuel Kaski

However, the introduction of nuisance parameters can lead to bias in the Bayesian learner's estimate of the target parameters, a phenomenon we refer to as negative interference.

Active Learning Experimental Design +3

Learning Robust Statistics for Simulation-based Inference under Model Misspecification

1 code implementation NeurIPS 2023 Daolang Huang, Ayush Bharti, Amauri Souza, Luigi Acerbi, Samuel Kaski

Simulation-based inference (SBI) methods such as approximate Bayesian computation (ABC), synthetic likelihood, and neural posterior estimation (NPE) rely on simulating statistics to infer parameters of intractable likelihood models.

Time Series

Learning relevant contextual variables within Bayesian Optimization

no code implementations23 May 2023 Julien Martinelli, Ayush Bharti, Armi Tiihonen, S. T. John, Louis Filstroff, Sabina J. Sloman, Patrick Rinke, Samuel Kaski

Contextual Bayesian Optimization (CBO) efficiently optimizes black-box functions with respect to design variables, while simultaneously integrating contextual information regarding the environment, such as experimental conditions.

Bayesian Optimization Model Selection

Approximate Bayesian Computation with Domain Expert in the Loop

1 code implementation28 Jan 2022 Ayush Bharti, Louis Filstroff, Samuel Kaski

Approximate Bayesian computation (ABC) is a popular likelihood-free inference method for models with intractable likelihood functions.

Active Learning Dimensionality Reduction

A General Method for Calibrating Stochastic Radio Channel Models with Kernels

no code implementations17 Dec 2020 Ayush Bharti, Francois-Xavier Briol, Troels Pedersen

We evaluate the performance of the proposed method by fitting two different stochastic channel models, namely the Saleh-Valenzuela model and the propagation graph model, to both simulated and measured data.

Clustering

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