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相关论文: Diffusive capture processes for information search

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Accurate traffic demand forecasting enables transportation management departments to allocate resources more effectively, thereby improving their utilization efficiency. However, complex spatiotemporal relationships in traffic systems…

机器学习 · 计算机科学 2025-07-04 Siqing Long , Xiangzhi Huang , Jiemin Xie , Ming Cai

We present a general approach to study the flooding time (a measure of how fast information spreads) in dynamic graphs (graphs whose topology changes with time according to a random process). We consider arbitrary converging Markovian…

离散数学 · 计算机科学 2015-03-19 Andrea Clementi , Riccardo Silvestri , Luca Trevisan

In this paper we use asymptotic analysis to determine the steady-state mean number of resources in each of $N$ small interior targets within a three-dimensional bounded domain. The accumulation of resources is based on multiple rounds of…

统计力学 · 物理学 2020-10-26 Paul C. Bressloff

Diffusion models form an important class of generative models today, accounting for much of the state of the art in cutting edge AI research. While numerous extensions beyond image and video generation exist, few of such approaches address…

机器学习 · 计算机科学 2025-04-30 Hao Luan , See-Kiong Ng , Chun Kai Ling

Classifying network traffic according to their application-layer protocols is an important task in modern networks for traffic management and network security. Existing payload-based or statistical methods of application identification…

网络与互联网体系结构 · 计算机科学 2011-05-31 Fei He , Fan Xiang , Yibo Xue , Jun Li

This paper presents a hybrid method for the detection of distributed denial-of-service (DDoS) attacks that combines feature-based and volume-based detection. Our approach is based on an exponential moving average algorithm for…

密码学与安全 · 计算机科学 2018-12-14 P. D. Bojovic , I. Basicevic , S. Ocovaj , M. Popovic

Adapting a pretrained diffusion model to new objectives at inference time remains an open problem in generative modeling. Existing steering methods suffer from inaccurate value estimation, especially at high noise levels, which biases…

机器学习 · 计算机科学 2025-06-27 Vineet Jain , Kusha Sareen , Mohammad Pedramfar , Siamak Ravanbakhsh

This work aims to improve the efficiency of text-to-image diffusion models. While diffusion models use computationally expensive UNet-based denoising operations in every generation step, we identify that not all operations are equally…

计算机视觉与模式识别 · 计算机科学 2024-02-21 Amirhossein Habibian , Amir Ghodrati , Noor Fathima , Guillaume Sautiere , Risheek Garrepalli , Fatih Porikli , Jens Petersen

The time it takes the fastest searcher out of $N\gg1$ searchers to find a target determines the timescale of many physical, chemical, and biological processes. This time is called an extreme first passage time (FPT) and is typically much…

概率论 · 数学 2019-12-10 Sean D Lawley

Controlling and analyzing cyberphysical and robotics systems is increasingly becoming a Big Data challenge. Pushing this data to, and processing in the cloud is more efficient than on-board processing. However, current cloud-based solutions…

机器人学 · 计算机科学 2012-12-17 Timothy Hunter , Tathagata Das , Matei Zaharia , Pieter Abbeel , Alexandre M. Bayen

Only little is publicly known about traffic in non-educational data centers. Recent studies made some knowledge available, which gives us the opportunity to create more realistic traffic models for data center research. We used this…

网络与互联网体系结构 · 计算机科学 2014-09-09 Philip Wette , Holger Karl

Denoising diffusion models are a popular class of generative models providing state-of-the-art results in many domains. One adds gradually noise to data using a diffusion to transform the data distribution into a Gaussian distribution.…

机器学习 · 计算机科学 2023-08-21 Francisco Vargas , Will Grathwohl , Arnaud Doucet

The challenges of graph stream algorithms are twofold. First, each edge needs to be processed only once, and second, it needs to work on highly constrained memory. Diffusion degree is a measure of node centrality that can be calculated (for…

数据结构与算法 · 计算机科学 2024-02-01 Vinit Ramesh Gore , Suman Kundu , Anggy Eka Pratiwi

Complex networks have been found to provide a good representation of the structure of knowledge, as understood in terms of discoverable concepts and their relationships. In this context, the discovery process can be modeled as agents…

社会与信息网络 · 计算机科学 2017-09-07 Henrique F. de Arruda , Filipi N. Silva , Luciano da F. Costa , Diego R. Amancio

Diffusion models are vastly used in generative AI, leveraging their capability to capture complex data distributions. However, their potential remains largely unexplored in the field of resource allocation in wireless networks. This paper…

系统与控制 · 电气工程与系统科学 2024-07-23 Amirhassan Babazadeh Darabi , Sinem Coleri

An important problem of reconstruction of diffusion network and transmission probabilities from the data has attracted a considerable attention in the past several years. A number of recent papers introduced efficient algorithms for the…

物理与社会 · 物理学 2015-09-24 Andrey Y. Lokhov , Theodor Misiakiewicz

We present a novel task scheduling scheme for accelerating computational applications involving distributed iterative processes that are executed on networked computing resources. Such an application consists of multiple tasks, each of…

分布式、并行与集群计算 · 计算机科学 2021-06-30 Mehrdad Kiamari , Bhaskar Krishnamachari

Data-intensive applications often require exploratory analysis of large datasets. If analysis is performed on distributed resources, data locality can be crucial to high throughput and performance. We propose a "data diffusion" approach…

分布式、并行与集群计算 · 计算机科学 2016-11-17 Ioan Raicu , Yong Zhao , Ian Foster , Alex Szalay

Many dynamical processes on real world networks display complex temporal patterns as, for instance, a fat-tailed distribution of inter-events times, leading to heterogeneous waiting times between events. In this work, we focus on…

物理与社会 · 物理学 2016-05-25 Sarah De Nigris , Anthony Hastir , Renaud Lambiotte

Heat-Diffusion (HD) routing is our recently-developed queue-aware routing policy for multi-hop wireless networks inspired by Thermodynamics. In the prior theoretical studies, we have shown that HD routing guarantees throughput optimality,…

网络与互联网体系结构 · 计算机科学 2018-09-05 Pradipta Ghosh , He Ren , Reza Banirazi , Bhaskar Krishnamachari , Edmond Jonckheere