papers

Publications (14)

math.NT2021

Lower-Order Biases Second Moments of Dirichlet Coefficients in Families of -Functions

Megumi Asada, Ryan Chen, Eva Fourakis +9

Let be a nontrivial one-parameter family of elliptic curves over , with , and consider the \te…

cs.AI2025

The Amazon Nova Family of Models: Technical Report and Model Card

Amazon AGI, Aaron Langford, Aayush Shah +783

We present Amazon Nova, a new generation of state-of-the-art foundation models that deliver frontier intelligence and industry-leading price performance. Amazon Nova Pro is a highl…

math.CO2016

On Reay's relaxed Tverberg conjecture and generalizations of Conway's thrackle conjecture

Megumi Asada, Ryan Chen, Florian Frick +5

Reay's relaxed Tverberg conjecture and Conway's thrackle conjecture are open problems about the geometry of pairwise intersections. Reay asked for the minimum number of points in E…

cs.CR2023

A Large-Scale Study of Personal Identifiability of Virtual Reality Motion Over Time

Mark Roman Miller, Eugy Han, Cyan DeVeaux +3

In recent years, social virtual reality (VR), sometimes described as the "metaverse," has become widely available. With its potential comes risks, including risks to privacy. To un…

cs.AI2026

Evolutionary System Prompt Learning for Reinforcement Learning in LLMs

Lunjun Zhang, Ryan Chen, Bradly C. Stadie

Building agentic systems that can autonomously self-improve from experience is a longstanding goal of AI. Large language models (LLMs) today primarily self-improve via two mechanis…

stat.ME2020

Bootstrap Confidence Intervals Using the Likelihood Ratio Test in Changepoint Detection

Ryan Chen, Javier Cabrera

This study aims to evaluate the performance of power in the likelihood ratio test for changepoint detection by bootstrap sampling, and proposes a hypothesis test based on bootstrap…