activity
20242026
collaborators

16 papers

cs.RO2026

RoboHarness: Memory-Driven Orchestration of Heterogeneous Robot Policies for Long-Horizon Planning

Jinbang Huang, Yuanzhao Hu, Zhiyuan Li +6

Long-horizon robotic tasks require a breadth of capabilities beyond what any single existing robot control policy can reliably provide. Combining heterogeneous policies with comple…

cs.AI2026

Abductive Reasoning with Probabilistic Commonsense

Joseph Cotnareanu, Chiara Roverato, Han Zhou +3

Recent efforts to improve the reasoning abilities of Large Language Models (LLMs) have focused on integrating formal logic solvers within neurosymbolic frameworks. A key challenge…

cs.RO2026

H-WM: Robotic Task and Motion Planning Guided by Hierarchical World Model

Jinbang Huang, Wenyuan Chen, Zhiyuan Li +9

World models are becoming central to robotic planning and control by predicting future state transitions. Existing approaches mainly rely on visual, latent, or language prediction,…

cs.AI2026

A Balanced Neuro-Symbolic Approach for Commonsense Abductive Logic

Joseph Cotnareanu, Didier Chetelat, Yingxue Zhang +1

Although Large Language Models (LLMs) have demonstrated impressive formal reasoning abilities, they often break down when problems require complex proof planning. One promising app…

cs.CL2025

InvertiTune: High-Quality Data Synthesis for Cost-Effective Single-Shot Text-to-Knowledge Graph Generation

Faezeh Faez, Marzieh S. Tahaei, Yaochen Hu +4

Large Language Models (LLMs) have revolutionized the ability to understand and generate text, enabling significant progress in automatic knowledge graph construction from text (Tex…

cs.IR2025

E-CARE: An Efficient LLM-based Commonsense-Augmented Framework for E-Commerce

Ge Zhang, Rohan Deepak Ajwani, Yaochen Hu +5

Finding relevant products given a user query is pivotal to an e-commerce platform, as it can drive shopping behavior and generate revenue. The challenge lies in accurately predicti…

cs.LG2025

It Takes Two: Your GRPO Is Secretly DPO

Yihong Wu, Liheng Ma, Lei Ding +9

GRPO has emerged as a prominent reinforcement learning algorithm for post-training LLMs. Unlike critic-based methods, GRPO computes advantages by estimating the \emph{value baselin…

stat.ML2025

GraphPPD: Posterior Predictive Modelling for Graph-Level Inference

Soumyasundar Pal, Liheng Ma, Amine Natik +2

Accurate modelling and quantification of predictive uncertainty is crucial in deep learning since it allows a model to make safer decisions when the data is ambiguous and facilitat…

cs.AI2025

Reasoning on a Budget: A Survey of Adaptive and Controllable Test-Time Compute in LLMs

Mohammad Ali Alomrani, Yingxue Zhang, Derek Li +14

Large language models (LLMs) have rapidly progressed into general-purpose agents capable of solving a broad spectrum of tasks. However, current models remain inefficient at reasoni…

cs.LG2025

Omni-Thinker: Scaling Multi-Task RL in LLMs with Hybrid Reward and Task Scheduling

Derek Li, Jiaming Zhou, Leo Maxime Brunswic +8

The pursuit of general-purpose artificial intelligence depends on large language models (LLMs) that can handle both structured reasoning and open-ended generation. We present Omni-…

cs.RO2025

One Demo Is All It Takes: Planning Domain Derivation with LLMs from A Single Demonstration

Jinbang Huang, Yixin Xiao, Zhanguang Zhang +3

Pre-trained large language models (LLMs) show promise for robotic task planning but often struggle to guarantee correctness in long-horizon problems. Task and motion planning (TAMP…

hep-th2025

Extended-BMS Anomalies and Flat Space Holography

Laurent Baulieu, Luca Ciambelli, Tom Wetzstein

We geometrically determine the BRST symmetry of a three-dimensional extended BMS field theory defined at the null boundary of asymptotically flat four-dimensional spaces. We then d…

cs.CL2025

InnerThoughts: Disentangling Representations and Predictions in Large Language Models

Didier Chételat, Joseph Cotnareanu, Rylee Thompson +2

Large language models (LLMs) contain substantial factual knowledge which is commonly elicited by multiple-choice question-answering prompts. Internally, such models process the pro…

cs.CL2024

Refining Answer Distributions for Improved Large Language Model Reasoning

Soumyasundar Pal, Didier Chételat, Yingxue Zhang +1

Large Language Models (LLMs) have exhibited an impressive capability to perform reasoning tasks, especially if they are encouraged to generate a sequence of intermediate steps. Rea…

cs.LG2024

HardCore Generation: Generating Hard UNSAT Problems for Data Augmentation

Joseph Cotnareanu, Zhanguang Zhang, Hui-Ling Zhen +2

Efficiently determining the satisfiability of a boolean equation -- known as the SAT problem for brevity -- is crucial in various industrial problems. Recently, the advent of deep…

cs.LG2024

GraSS: Combining Graph Neural Networks with Expert Knowledge for SAT Solver Selection

Zhanguang Zhang, Didier Chetelat, Joseph Cotnareanu +7

Boolean satisfiability (SAT) problems are routinely solved by SAT solvers in real-life applications, yet solving time can vary drastically between solvers for the same instance. Th…