Statistics and Learning Theory
L.13.5
Lecture
Online, Active, and Transfer Learning

What is the Value of Data? on Mathematical Methods for Data Quality Estimation

Siddharth Jain, Netanel Raviv, Jehoshua Bruck

Date & Time

01:00 am – 01:00 am

Abstract

Data is one of the most important assets of the information age, and its societal impact is undisputed. Yet, rigorous methods of assessing the quality of data are lacking. In this paper, we propose a formal definition for the quality of a given dataset. We assess a dataset's quality by a quantity we call the expected diameter, which measures the expected disagreement between two randomly chosen hypotheses that explain it, and has recently found applications in active learning. We focus on Boolean hyperplanes, and utilize a collection of Fourier analytic, algebraic, and probabilistic methods to come up with theoretical guarantees and practical solutions for the computation of the expected diameter. We also study the behaviour of the expected diameter on algebraically structured datasets, conduct experiments that validate this notion of quality, and demonstrate the feasibility of our techniques.


Presenters

Siddharth Jain

California Institute of Technology

Netanel Raviv

Washington University in Saint Louis

Jehoshua Bruck

California Institute of Technology

Session Chair

Varun Jog

University of Wisconsin-Madison