Search Results for author: Lee-Ad Gottlieb

Found 13 papers, 0 papers with code

Weighted Distance Nearest Neighbor Condensing

no code implementations24 Oct 2023 Lee-Ad Gottlieb, Timor Sharabi, Roi Weiss

The problem of nearest neighbor condensing has enjoyed a long history of study, both in its theoretical and practical aspects.

Generalization Bounds

Using Deepfake Technologies for Word Emphasis Detection

no code implementations12 May 2023 Eran Kaufman, Lee-Ad Gottlieb

In this work, we consider the task of automated emphasis detection for spoken language.

Face Swapping

Predicting subscriber usage: Analyzing multi-dimensional time-series using Convolutional Neural Networks

no code implementations29 Sep 2021 Benjamin Azaria, Lee-Ad Gottlieb

Companies operating under the subscription model typically invest significant resources attempting to predict customer's feature usage.

Time Series Time Series Analysis

Functions with average smoothness: structure, algorithms, and learning

no code implementations13 Jul 2020 Yair Ashlagi, Lee-Ad Gottlieb, Aryeh Kontorovich

Rather than using the Lipschitz constant as the regularizer, we define a local slope at each point and gauge the function complexity as the average of these values.

Denoising Generalization Bounds

Nested Barycentric Coordinate System as an Explicit Feature Map

no code implementations5 Feb 2020 Lee-Ad Gottlieb, Eran Kaufman, Aryeh Kontorovich, Gabriel Nivasch, Ofir Pele

We propose a new embedding method which is particularly well-suited for settings where the sample size greatly exceeds the ambient dimension.

Generalization Bounds

Apportioned Margin Approach for Cost Sensitive Large Margin Classifiers

no code implementations4 Feb 2020 Lee-Ad Gottlieb, Eran Kaufman, Aryeh Kontorovich

We consider the problem of cost sensitive multiclass classification, where we would like to increase the sensitivity of an important class at the expense of a less important one.

Generalization Bounds

Learning convex polyhedra with margin

no code implementations NeurIPS 2018 Lee-Ad Gottlieb, Eran Kaufman, Aryeh Kontorovich, Gabriel Nivasch

We present an improved algorithm for {\em quasi-properly} learning convex polyhedra in the realizable PAC setting from data with a margin.

Nearly optimal classification for semimetrics

no code implementations22 Feb 2015 Lee-Ad Gottlieb, Aryeh Kontorovich

We initiate the rigorous study of classification in semimetric spaces, which are point sets with a distance function that is non-negative and symmetric, but need not satisfy the triangle inequality.

Classification General Classification

Near-optimal sample compression for nearest neighbors

no code implementations NeurIPS 2014 Lee-Ad Gottlieb, Aryeh Kontorovich, Pinhas Nisnevitch

We present the first sample compression algorithm for nearest neighbors with non-trivial performance guarantees.

General Classification

Efficient Classification for Metric Data

no code implementations11 Jun 2013 Lee-Ad Gottlieb, Aryeh Kontorovich, Robert Krauthgamer

We design a new algorithm for classification in general metric spaces, whose runtime and accuracy depend on the doubling dimension of the data points, and can thus achieve superior classification performance in many common scenarios.

Classification Computational Efficiency +1

Adaptive Metric Dimensionality Reduction

no code implementations12 Feb 2013 Lee-Ad Gottlieb, Aryeh Kontorovich, Robert Krauthgamer

We study adaptive data-dependent dimensionality reduction in the context of supervised learning in general metric spaces.

Dimensionality Reduction Generalization Bounds

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