Search Results for author: Ravi Ganti

Found 14 papers, 2 papers with code

Beyond Single Items: Exploring User Preferences in Item Sets with the Conversational Playlist Curation Dataset

1 code implementation13 Mar 2023 Arun Tejasvi Chaganty, Megan Leszczynski, Shu Zhang, Ravi Ganti, Krisztian Balog, Filip Radlinski

Users in consumption domains, like music, are often able to more efficiently provide preferences over a set of items (e. g. a playlist or radio) than over single items (e. g. songs).

Music Recommendation Recommendation Systems +1

MAQA: A Multimodal QA Benchmark for Negation

no code implementations9 Jan 2023 Judith Yue Li, Aren Jansen, Qingqing Huang, Joonseok Lee, Ravi Ganti, Dima Kuzmin

Multimodal learning can benefit from the representation power of pretrained Large Language Models (LLMs).

Negation Question Answering

MuLan: A Joint Embedding of Music Audio and Natural Language

1 code implementation26 Aug 2022 Qingqing Huang, Aren Jansen, Joonseok Lee, Ravi Ganti, Judith Yue Li, Daniel P. W. Ellis

Music tagging and content-based retrieval systems have traditionally been constructed using pre-defined ontologies covering a rigid set of music attributes or text queries.

Cross-Modal Retrieval Music Tagging +2

A Farewell to Arms: Sequential Reward Maximization on a Budget with a Giving Up Option

no code implementations6 Mar 2020 P Sharoff, Nishant A. Mehta, Ravi Ganti

We consider a sequential decision-making problem where an agent can take one action at a time and each action has a stochastic temporal extent, i. e., a new action cannot be taken until the previous one is finished.

Decision Making Multi-Armed Bandits

Thompson Sampling for Dynamic Pricing

no code implementations8 Feb 2018 Ravi Ganti, Matyas Sustik, Quoc Tran, Brian Seaman

We show that one can use active learning algorithms such as Thompson sampling to more efficiently learn the underlying parameters in a pricing problem.

Active Learning Thompson Sampling

Active Algorithms For Preference Learning Problems with Multiple Populations

no code implementations14 Mar 2016 Aniruddha Bhargava, Ravi Ganti, Robert Nowak

In this paper we model the problem of learning preferences of a population as an active learning problem.

Active Learning

On Learning High Dimensional Structured Single Index Models

no code implementations13 Mar 2016 Nikhil Rao, Ravi Ganti, Laura Balzano, Rebecca Willett, Robert Nowak

Single Index Models (SIMs) are simple yet flexible semi-parametric models for machine learning, where the response variable is modeled as a monotonic function of a linear combination of features.

Vocal Bursts Intensity Prediction

Matrix Completion Under Monotonic Single Index Models

no code implementations NeurIPS 2015 Ravi Ganti, Laura Balzano, Rebecca Willett

Most recent results in matrix completion assume that the matrix under consideration is low-rank or that the columns are in a union of low-rank subspaces.

Matrix Completion

Learning Single Index Models in High Dimensions

no code implementations30 Jun 2015 Ravi Ganti, Nikhil Rao, Rebecca M. Willett, Robert Nowak

Single Index Models (SIMs) are simple yet flexible semi-parametric models for classification and regression.

General Classification Vocal Bursts Intensity Prediction

Sparse Linear Regression With Missing Data

no code implementations28 Mar 2015 Ravi Ganti, Rebecca M. Willett

This paper proposes a fast and accurate method for sparse regression in the presence of missing data.

regression Stochastic Optimization

Active Model Aggregation via Stochastic Mirror Descent

no code implementations28 Mar 2015 Ravi Ganti

We consider the problem of learning convex aggregation of models, that is as good as the best convex aggregation, for the binary classification problem.

Active Learning Binary Classification +1

Building Bridges: Viewing Active Learning from the Multi-Armed Bandit Lens

no code implementations26 Sep 2013 Ravi Ganti, Alexander G. Gray

The design of this sampling distribution is also inspired by the analogy between active learning and multi-armed bandits.

Active Learning Binary Classification +2

Local Support Vector Machines:Formulation and Analysis

no code implementations14 Sep 2013 Ravi Ganti, Alexander Gray

We provide a formulation for Local Support Vector Machines (LSVMs) that generalizes previous formulations, and brings out the explicit connections to local polynomial learning used in nonparametric estimation literature.

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