activity
20232026
most citedUncertainty Estimation and Quantification for LLMs: A Simple Supervised Approach

6 citations · 7 across the 9 of their papers we have counts for

collaborators

10 papers

cs.CL2026

IQuest-Q1: Advancing Foundation Capabilities for Agentic CLI Systems

A. Jian Yang, An Huang, Bo Dan +173

We present IQuest-Q1, a sparse Mixture-of-Experts (MoE) agentic foundation model with 320B total parameters (15B activated). IQuest-Q1 is developed through a three-stage process: (…

cs.LG2026

Calibrating conditional risk

Andrey Vasilyev, Yikai Wang, Xiaocheng Li +1

We introduce and study the problem of calibrating conditional risk, which involves estimating the expected loss of a prediction model conditional on input features. We analyze this…

cs.AI2025

Risk Profiling and Modulation for LLMs

Yikai Wang, Xiaocheng Li, Guanting Chen

Large language models (LLMs) are increasingly used for decision-making tasks under uncertainty; however, their risk profiles and how they are influenced by prompting and alignment…

stat.ML2025

Collaborative Prediction: To Join or To Disjoin Datasets

Kyung Rok Kim, Yansong Wang, Xiaocheng Li +1

With the recent rise of generative Artificial Intelligence (AI), the need of selecting high-quality dataset to improve machine learning models has garnered increasing attention. Ho…

cs.LG2025

OMGPT: A Sequence Modeling Framework for Data-driven Operational Decision Making

Hanzhao Wang, Guanting Chen, Kalyan Talluri +1

We build a Generative Pre-trained Transformer (GPT) model from scratch to solve sequential decision making tasks arising in contexts of operations research and management science w…

cs.LG2024

Reward Modeling with Ordinal Feedback: Wisdom of the Crowd

Shang Liu, Yu Pan, Guanting Chen +1

Learning a reward model (RM) from human preferences has been an important component in aligning large language models (LLMs). The canonical setup of learning RMs from pairwise pref…

cs.LG2024★ 1 cited

Towards Better Understanding of In-Context Learning Ability from In-Context Uncertainty Quantification

Shang Liu, Zhongze Cai, Guanting Chen +1

Predicting simple function classes has been widely used as a testbed for developing theory and understanding of the trained Transformer's in-context learning (ICL) ability. In this…

cs.LG2024

Understanding the Training and Generalization of Pretrained Transformer for Sequential Decision Making

Hanzhao Wang, Yu Pan, Fupeng Sun +4

In this paper, we consider the supervised pre-trained transformer for a class of sequential decision-making problems. The class of considered problems is a subset of the general fo…

cs.LG2024★ 6 cited

Uncertainty Estimation and Quantification for LLMs: A Simple Supervised Approach

Linyu Liu, Yu Pan, Xiaocheng Li +1

In this paper, we study the problem of uncertainty estimation and calibration for LLMs. We begin by formulating the uncertainty estimation problem, a relevant yet underexplored are…

eess.SY2023

Facilitating Battery Swapping Services for Freight Trucks with Spatial-Temporal Demand Prediction

Linyu Liu, Zhen Dai, Shiji Song +2

Electrifying heavy-duty trucks offers a substantial opportunity to curtail carbon emissions, advancing toward a carbon-neutral future. However, the inherent challenges of limited b…