Density ratio model with data-adaptive basis function

نویسندگان

چکیده

In many applications, we collect samples from multiple interconnected populations. These population distributions share some latent structure, so it is advantageous to jointly analyze the make efficient inferences on and their functionals. One effective way connect density ratio model (DRM). A key ingredient of DRM that log ratios are linear combinations prespecified functions; vector formed by these functions called basis function. The benefit relies correctly specifying function a large degree. user may not have complete knowledge enable suitable choice function, discussions been devoted this topic. article, consider still open problem data-adaptive can alleviate risk severe misspecification. We propose approach based functional principal component analysis. Under conditions, show leads consistent estimation. Our simulation results proposed adaptive achieve an efficiency gain. use real-data example economics demonstrate gain ease our approach.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Adaptive local Radial Basis Function network

nonstationary channel equalisation problem Eng-Siong Chng y 1, Howard Yang z, Herbert Wiklickyz y Institute of Systems Science, National University of Singapore, Singapore 11957. Email : [email protected] z Brain Information Processing Group, Frontier Research Programme, RIKEN. 2-1 Hirosawa, Wako-shi, Saitama 351-01, JAPAN. Abstract| The computational requirement to implement the optimal Bayesi...

متن کامل

Locally Adaptive Density Ratio for Detecting Novelty in Twitter Streams

With the massive growth of social data, a huge attention has been given to the task of detecting key topics in the Twitter stream. In this paper, we propose the use of novelty detection techniques for identifying both emerging and evolving topics in new tweets. In specific, we propose a locally adaptive approach for density-ratio estimation in which the density ratio between new and reference d...

متن کامل

Ratio Pulse Arithmetic for Radial Basis Function Network

Ratio pulse arithmetic represents a signal with a random pulse stream and its value is defined as the ratio of ones and zeroes in its random pulse stream. We propose circuits for the exponential function and subtraction, and explain how to implement a radial basis function(RBF) network. We applied the RBF network to a classifier example. Simulation results show that its performance is comparabl...

متن کامل

Adaptive model predictive control with exploring property for constrained linear systems that uses basis function model parametrization

This manuscript contains technical details of recent results developed by the authors on adaptive model predictive control for constrained linear systems that exhibits exploring property and uses basis function model parametrization.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Multivariate Analysis

سال: 2022

ISSN: ['0047-259X', '1095-7243']

DOI: https://doi.org/10.1016/j.jmva.2022.105043