Search Results for author: Alan Yang

Found 7 papers, 3 papers with code

Spreading Code Optimization for Low-Earth Orbit Satellites via Mixed-Integer Convex Programming

no code implementations19 Apr 2024 Alan Yang, Tara Mina, Grace Gao

Optimizing the correlation properties of spreading codes is critical for minimizing inter-channel interference in satellite navigation systems.

Binary sequence set optimization for CDMA applications via mixed-integer quadratic programming

no code implementations1 Nov 2022 Alan Yang, Tara Mina, Grace Gao

Finding sets of binary sequences with low auto- and cross-correlation properties is a hard combinatorial optimization problem with numerous applications, including multiple-input-multiple-output (MIMO) radar and global navigation satellite systems (GNSS).

Combinatorial Optimization

Input-to-State Stable Neural Ordinary Differential Equations with Applications to Transient Modeling of Circuits

no code implementations14 Feb 2022 Alan Yang, Jie Xiong, Maxim Raginsky, Elyse Rosenbaum

This paper proposes a class of neural ordinary differential equations parametrized by provably input-to-state stable continuous-time recurrent neural networks.

Combining Experimental and Observational Data for Identification and Estimation of Long-Term Causal Effects

no code implementations26 Jan 2022 AmirEmad Ghassami, Alan Yang, David Richardson, Ilya Shpitser, Eric Tchetgen Tchetgen

We consider the task of identifying and estimating the causal effect of a treatment variable on a long-term outcome variable using data from an observational domain and an experimental domain.

Causal Inference

Causal Inference with Hidden Mediators

1 code implementation4 Nov 2021 AmirEmad Ghassami, Alan Yang, Ilya Shpitser, Eric Tchetgen Tchetgen

In this paper, we extend the proximal causal inference approach to settings where identification of causal effects hinges upon a set of mediators which are not observed, yet error prone proxies of the hidden mediators are measured.

Causal Inference

Model-Augmented Estimation of Conditional Mutual Information for Feature Selection

1 code implementation12 Nov 2019 Alan Yang, AmirEmad Ghassami, Maxim Raginsky, Negar Kiyavash, Elyse Rosenbaum

In the second step, CI testing is performed by applying the $k$-NN conditional mutual information estimator to the learned feature maps.

feature selection

Characterizing Distribution Equivalence and Structure Learning for Cyclic and Acyclic Directed Graphs

1 code implementation ICML 2020 AmirEmad Ghassami, Alan Yang, Negar Kiyavash, Kun Zhang

The main approach to defining equivalence among acyclic directed causal graphical models is based on the conditional independence relationships in the distributions that the causal models can generate, in terms of the Markov equivalence.

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