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We consider a simulation-based Ranking and Selection (R&S) problem with input uncertainty, where unknown input distributions can be estimated using input data arriving in batches of varying sizes over time. Each time a batch arrives,…

Optimization and Control · Mathematics 2022-09-05 Di Wu , Yuhao Wang , Enlu Zhou

We demonstrate the first climate-scale, numerical ocean simulations improved through distributed, online inference of Deep Neural Networks (DNN) using SmartSim. SmartSim is a library dedicated to enabling online analysis and Machine…

Computational Engineering, Finance, and Science · Computer Science 2021-04-20 Sam Partee , Matthew Ellis , Alessandro Rigazzi , Scott Bachman , Gustavo Marques , Andrew Shao , Benjamin Robbins

Retrieval-Augmented Language Models (RALMs) have significantly improved performance in open-domain question answering (QA) by leveraging external knowledge. However, RALMs still struggle with unanswerable queries, where the retrieved…

Computation and Language · Computer Science 2024-08-09 Seong-Il Park , Seung-Woo Choi , Na-Hyun Kim , Jay-Yoon Lee

In computational fluid dynamics simulations of industrial flows, models based on the Reynolds-averaged Navier--Stokes (RANS) equations are expected to play an important role in decades to come. However, model uncertainties are still a major…

Fluid Dynamics · Physics 2018-10-01 Heng Xiao , Paola Cinnella

We introduce ETOM, a five-level benchmark for evaluating multi-hop, end-to-end tool orchestration by LLM agents within a hierarchical Model-Context Protocol (MCP) ecosystem. Existing benchmarks often assess tools in isolation, overlooking…

Artificial Intelligence · Computer Science 2026-01-21 Jia-Kai Dong , I-Wei Huang , Chun-Tin Wu , Yi-Tien Tsai

Computational Fluid Dynamics (CFD) simulations using turbulence models are commonly used in engineering design. Of the different turbulence modeling approaches that are available, eddy viscosity based models are the most common for their…

Fluid Dynamics · Physics 2023-10-24 Minghan Chu , Weicheng Qian

We propose GAM-Agent, a game-theoretic multi-agent framework for enhancing vision-language reasoning. Unlike prior single-agent or monolithic models, GAM-Agent formulates the reasoning process as a non-zero-sum game between base…

Artificial Intelligence · Computer Science 2025-05-30 Jusheng Zhang , Yijia Fan , Wenjun Lin , Ruiqi Chen , Haoyi Jiang , Wenhao Chai , Jian Wang , Keze Wang

Social deduction games have become a popular testbed for probing reasoning, deception, coordination, and belief modeling in Large Language Model (LLM) agents. However, most environments are scored only by game outcomes such as win rates and…

Computation and Language · Computer Science 2026-05-27 Ye Yuan , Rui Song , Weien Li , Zeyu Li , Haochen Liu , Xiangyu Kong , Changjiang Han , Yonghan Yang , Zichen Zhao , Zixuan Dong , Fuyuan Lyu , Bowei He , Haolun Wu , Jikun Kang , Xue Liu

Large language models (LLMs) exhibit strong generative capabilities but remain vulnerable to confabulations, fluent yet unreliable outputs that vary arbitrarily even under identical prompts. Leveraging a quantum tensor network based…

Computation and Language · Computer Science 2026-02-03 Pragatheeswaran Vipulanandan , Kamal Premaratne , Dilip Sarkar

Reduced Order Models (ROMs) form essential tools across engineering domains by virtue of their function as surrogates for computationally intensive digital twinning simulators. Although purely data-driven methods are available for ROM…

Computational Engineering, Finance, and Science · Computer Science 2025-04-14 Konstantinos Vlachas , Thomas Simpson , Anthony Garland , D. Dane Quinn , Charbel Farhat , Eleni Chatzi

Universal multimodal embedding (UME) maps heterogeneous inputs into a shared retrieval space with a single model. Recent approaches improve UME by generating explicit chain-of-thought (CoT) rationales before extracting embeddings, enabling…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Chenwei He , Xiangzhao Hao , Tianyu Yang , Yuxiang Ma , Yuheng Jia , Lingxiang Wu , Chaoyang Zhao , Haiyun Guo , Jinqiao Wang

This paper investigates non-intrusive Scientific Machine Learning (SciML) Reduced-Order Models (ROMs) for plasma turbulence simulations. In particular, we focus on Operator Inference (OpInf) to build low-cost physics-based ROMs from data…

Computational Physics · Physics 2024-11-20 Constantin Gahr , Ionut-Gabriel Farcas , Frank Jenko

This study focuses on designing and developing a mathematically based quadcopter rotational dynamics simulation framework for testing reinforcement learning (RL) algorithms in many flexible configurations. The design of the simulation…

Machine Learning · Computer Science 2022-02-22 Burak Han Demirbilek

To generate "accurate" scene graphs, almost all existing methods predict pairwise relationships in a deterministic manner. However, we argue that visual relationships are often semantically ambiguous. Specifically, inspired by linguistic…

Computer Vision and Pattern Recognition · Computer Science 2021-03-11 Gengcong Yang , Jingyi Zhang , Yong Zhang , Baoyuan Wu , Yujiu Yang

Mediation analysis for complex, non-Euclidean data, such as probability distributions, compositions, images, and networks, presents significant methodological challenges due to the inherent nonlinearity and geometric constraints of such…

Methodology · Statistics 2026-04-01 Wenxi Tan , Bing Li , Lingzhou Xue

Numerical simulations of contaminant dispersion, as after a gas leakage incident on a chemical plant, can provide valuable insights for both emergency response and preparedness. Simulation approaches combine incompressible Navier-Stokes…

Computational Engineering, Finance, and Science · Computer Science 2026-03-05 Lisa Kühn , Jacopo Bonari , Max von Danwitz , Alexander Popp

Large language models (LLMs) integrated into multistep agent systems enable complex decision-making processes across various applications. However, their outputs often lack reliability, making uncertainty estimation crucial. Existing…

Computation and Language · Computer Science 2024-12-03 Qiwei Zhao , Xujiang Zhao , Yanchi Liu , Wei Cheng , Yiyou Sun , Mika Oishi , Takao Osaki , Katsushi Matsuda , Huaxiu Yao , Haifeng Chen

In the era of information proliferation, discerning the credibility of news content poses an ever-growing challenge. This paper introduces RELIANCE, a pioneering ensemble learning system designed for robust information and fake news…

Information Retrieval · Computer Science 2024-04-23 Majid Ramezani , Hamed Mohammadshahi , Mahshid Daliry , Soroor Rahmani , Amir-Hosein Asghari

We explore a reduced-order model (ROM) of plane Couette flow with a view to performing turbulence control. The ROM is derived through Galerkin projections of the incompressible Navier-Stokes (NS) system onto a basis composed of…

Fluid Dynamics · Physics 2025-07-09 Igor A. Maia , André V. G. Cavalieri

Neural Networks (NNs) have been extensively used for a wide spectrum of real-world regression tasks, where the goal is to predict a numerical outcome such as revenue, effectiveness, or a quantitative result. In many such tasks, the point…

Machine Learning · Computer Science 2020-06-05 Xin Qiu , Elliot Meyerson , Risto Miikkulainen