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In this paper, we combine deep learning concepts and some proper orthogonal decomposition (POD) model reduction methods for predicting flow in heterogeneous porous media. Nonlinear flow dynamics is studied, where the dynamics is regarded as…

Numerical Analysis · Mathematics 2025-09-12 Siu Wun Cheung , Eric T. Chung , Yalchin Efendiev , Eduardo Gildin , Yating Wang , Jingyan Zhang

In this paper, we design, implement, and evaluate Polyphony, a system to give network operators a new way to control and reduce the frequency of poor tail latency events in multi-class data center networks, on the time scale of minutes.…

Networking and Internet Architecture · Computer Science 2026-01-08 Kevin Zhao , Chenning Li , Anton A. Zabreyko , Arash Nasr-Esfahany , Anna Goncharenko , David Dai , Sidharth Lakshmanan , Claire Li , Mohammad Alizadeh , Thomas E. Anderson

The ability to generate diverse solutions to a given problem is a hallmark of human creativity. This divergent reasoning is also crucial for machines, enhancing their robustness and enabling them to assist humans in many applications such…

Artificial Intelligence · Computer Science 2025-05-28 Fangxu Yu , Lai Jiang , Haoqiang Kang , Shibo Hao , Lianhui Qin

A general graph-structured neural network architecture operates on graphs through two core components: (1) complex enough message functions; (2) a fixed information aggregation process. In this paper, we present the Policy Message Passing…

Machine Learning · Computer Science 2019-10-01 Zhiwei Deng , Greg Mori

This paper presents the Persistent Weisfeiler-Lehman Random walk scheme (abbreviated as PWLR) for graph representations, a novel mathematical framework which produces a collection of explainable low-dimensional representations of graphs…

Machine Learning · Computer Science 2022-08-30 Sun Woo Park , Yun Young Choi , Dosang Joe , U Jin Choi , Youngho Woo

This paper proposes a general enhancement to the Normalizing Flows (NF) used in neural vocoding. As a case study, we improve expressive speech vocoding with a revamped Parallel Wavenet (PW). Specifically, we propose to extend the affine…

Audio and Speech Processing · Electrical Eng. & Systems 2022-02-17 Adam Gabryś , Yunlong Jiao , Viacheslav Klimkov , Daniel Korzekwa , Roberto Barra-Chicote

Structured outputs are essential for large language models (LLMs) in critical applications like agents and information extraction. Despite their capabilities, LLMs often generate outputs that deviate from predefined schemas, significantly…

Computation and Language · Computer Science 2025-05-08 Darren Yow-Bang Wang , Zhengyuan Shen , Soumya Smruti Mishra , Zhichao Xu , Yifei Teng , Haibo Ding

We propose a novel way to handle out of vocabulary (OOV) words in downstream natural language processing (NLP) tasks. We implement a network that predicts useful embeddings for OOV words based on their morphology and on the context in which…

Computation and Language · Computer Science 2019-03-05 Nicolas Garneau , Jean-Samuel Leboeuf , Luc Lamontagne

Operations Research (OR) is vital for decision-making in many industries. While recent OR methods have seen significant improvements in automation and efficiency through integrating Large Language Models (LLMs), they still struggle to…

Artificial Intelligence · Computer Science 2025-02-17 Yansen Zhang , Qingcan Kang , Wing Yin Yu , Hailei Gong , Xiaojin Fu , Xiongwei Han , Tao Zhong , Chen Ma

Prevalent retrieval-based tool-use pipelines struggle with a dual semantic challenge: their retrievers often employ encoders that fail to capture complex semantics, while the Large Language Model (LLM) itself lacks intrinsic tool knowledge…

Artificial Intelligence · Computer Science 2026-01-30 Bowen Fang , Wen Ye , Yunyue Su , Jinghao Zhang , Qiang Liu , Yesheng Liu , Xin Sun , Shu Wu , Jiabing Yang , Baole Wei , Liang Wang

Critical peer review of scientific manuscripts presents a significant challenge for Large Language Models (LLMs), partly due to data limitations and the complexity of expert reasoning. This report introduces Persistent Workflow Prompting…

Artificial Intelligence · Computer Science 2025-07-10 Evgeny Markhasin

Reinforcement Learning (RL) has made significant strides in complex tasks but struggles in multi-task settings with different embodiments. World model methods offer scalability by learning a simulation of the environment but often rely on…

Machine Learning · Computer Science 2025-02-25 Ignat Georgiev , Varun Giridhar , Nicklas Hansen , Animesh Garg

In order to obtain a stochastic model that accounts for the stochastic aspects of the dynamics of a business process, usually the following steps are taken. Given an event log, a process tree is obtained through a process discovery…

Computation and Language · Computer Science 2025-04-09 András Horváth , Paolo Ballarini , Pierre Cry

We describe an approach to task-oriented dialogue in which dialogue state is represented as a dataflow graph. A dialogue agent maps each user utterance to a program that extends this graph. Programs include metacomputation operators for…

Existing alignment techniques for Large Language Models (LLMs), such as Direct Preference Optimization (DPO), typically treat the model as a monolithic entity, applying uniform optimization pressure across all layers. This approach…

Computation and Language · Computer Science 2025-10-15 Yukun Zhang , Qi Dong

Hardware design automation faces challenges in generating high-quality Verilog code efficiently. This paper introduces VFlow, an automated framework that optimizes agentic workflows for Verilog code generation. Unlike traditional approaches…

Hardware Architecture · Computer Science 2025-07-15 Yangbo Wei , Zhen Huang , Huang Li , Wei W. Xing , Ting-Jung Lin , Lei He

We introduce Probe Pruning (PP), a novel framework for online, dynamic, structured pruning of Large Language Models (LLMs) applied in a batch-wise manner. PP leverages the insight that not all samples and tokens contribute equally to the…

Computation and Language · Computer Science 2025-02-24 Qi Le , Enmao Diao , Ziyan Wang , Xinran Wang , Jie Ding , Li Yang , Ali Anwar

Generative Flow Networks (GFlowNets) are a new family of probabilistic samplers where an agent learns a stochastic policy for generating complex combinatorial structure through a series of decision-making steps. Despite being inspired from…

Machine Learning · Computer Science 2024-02-20 Dinghuai Zhang , Ling Pan , Ricky T. Q. Chen , Aaron Courville , Yoshua Bengio

Graphical forecasting models learn the structure of time series data via projecting onto a graph, with recent techniques capturing spatial-temporal associations between variables via edge weights. Hierarchical variants offer a distinct…

Machine Learning · Computer Science 2025-04-04 Thomas Bailie , Yun Sing Koh , S. Karthik Mukkavilli , Varvara Vetrova

Control-flow graphs (CFGs) of structured programs are well known to exhibit strong sparsity properties. Traditionally, this sparsity has been modeled using graph parameters such as treewidth and pathwidth, enabling the development of faster…

Programming Languages · Computer Science 2026-02-10 Xuran Cai , Amir Goharshady , S Hitarth , Chun Kit Lam
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