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相关论文: Adaptive Processing of Spatial-Keyword Data Over a…

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The real-time nature of Twitter means that term distributions in tweets and in search queries change rapidly: the most frequent terms in one hour may look very different from those in the next. Informally, we call this phenomenon "churn".…

信息检索 · 计算机科学 2012-06-01 Jimmy Lin , Gilad Mishne

This study proposes a framework that extends existing time-coding time-to-first-spike spiking neural network (SNN) models to allow processing information changing over time. We explain spike propagation through a model with multiple input…

神经与进化计算 · 计算机科学 2024-07-15 Mateusz Pabian , Dominik Rzepka , Mirosław Pawlak

Urban forecasting models often face a severe data imbalance problem: only a few cities have dense, long-span records, while many others expose short or incomplete histories. Direct transfer from data-rich to data-scarce cities is unreliable…

机器学习 · 计算机科学 2025-09-23 Yue Jiang , Chenxi Liu , Yile Chen , Qin Chao , Shuai Liu , Cheng Long , Gao Cong

Fog computing integrates cloud and edge resources. According to an intelligent and decentralized method, this technology processes data generated by IoT sensors to seamlessly integrate physical and cyber environments. Internet of Things…

网络与互联网体系结构 · 计算机科学 2025-10-07 Mohammad Reza Akbari , Hamid Barati , Ali Barati

Spatial Crowdsourcing (SC) is a novel platform that engages individuals in the act of collecting various types of spatial data. This method of data collection can significantly reduce cost and turnover time, and is particularly useful in…

数据库 · 计算机科学 2017-04-27 Luan Tran , Hien To , Liyue Fan , Cyrus Shahabi

The exponential growth of data storage demands has necessitated the evolution of hierarchical storage management strategies [1]. This study explores the application of streaming machine learning [3] to revolutionize data prefetching within…

分布式、并行与集群计算 · 计算机科学 2025-01-30 Chiyu Cheng , Chang Zhou , Yang Zhao , Jin Cao

Many optimization tasks involve streaming data with unknown concept drifts, posing a significant challenge as Streaming Data-Driven Optimization (SDDO). Existing methods, while leveraging surrogate model approximation and historical…

机器学习 · 计算机科学 2025-12-09 Yuan-Ting Zhong , Ting Huang , Xiaolin Xiao , Yue-Jiao Gong

Nowadays, ridesharing has become one of the most popular services offered by online ride-hailing platforms (e.g., Uber and Didi Chuxing). Existing ridesharing platforms adopt the strategy that dispatches orders over the entire city at a…

信号处理 · 电气工程与系统科学 2020-09-07 Chang Liu , Jiahui Sun , Haiming Jin , Meng Ai , Qun Li , Cheng Zhang , Kehua Sheng , Guobin Wu , Xiaohu Qie , Xinbing Wang

In the advent of a pervasive presence of location sharing services researchers gained an unprecedented access to the direct records of human activity in space and time. This paper analyses geo-located Twitter messages in order to uncover…

社会与信息网络 · 计算机科学 2014-03-03 Bartosz Hawelka , Izabela Sitko , Euro Beinat , Stanislav Sobolevsky , Pavlos Kazakopoulos , Carlo Ratti

Spatio-temporal graph learning is a fundamental problem in modern urban systems. Existing approaches tackle different tasks independently, tailoring their models to unique task characteristics. These methods, however, fall short of modeling…

机器学习 · 计算机科学 2024-10-01 Junfeng Hu , Xu Liu , Zhencheng Fan , Yuxuan Liang , Roger Zimmermann

With accurate and timely traffic forecasting, the impacted traffic conditions can be predicted in advance to guide agencies and residents to respond to changes in traffic patterns appropriately. However, existing works on traffic…

机器学习 · 计算机科学 2022-11-01 Meng-Ju Tsai , Zhiyong Cui , Hao Yang , Cole Kopca , Sophie Tien , Yinhai Wang

Predicting the geographical location of users of social media like Twitter has found several applications in health surveillance, emergency monitoring, content personalization, and social studies in general. In this work we contribute to…

社会与信息网络 · 计算机科学 2021-12-15 Federico M. Funes , José Ignacio Alvarez-Hamelin , Mariano G. Beiró

Large time series models (LTMs) have emerged as powerful tools for universal forecasting, yet they often struggle with the inherent diversity and nonstationarity of real-world time series data, leading to an unsatisfactory trade-off between…

机器学习 · 计算机科学 2026-03-03 Yunzhong Qiu , Zhiyao Cen , Zhongyi Pei , Chen Wang , Jianmin Wang

Spatio-temporal forecasting is crucial in transportation, logistics, and supply chain management. However, current methods struggle with large, complex datasets. We propose a dynamic, multi-modal approach that integrates the strengths of…

机器学习 · 计算机科学 2024-08-27 Sagar Srinivas Sakhinana , Geethan Sannidhi , Chidaksh Ravuru , Venkataramana Runkana

Twitter, like many social media and data brokering companies, makes their data available through a search API (application programming interface). In addition to filtering results by date and location, researchers can search for tweets with…

社会与信息网络 · 计算机科学 2020-06-23 Emory Hufbauer , Hana Khamfroush

In this paper, we study distributed prime-dual flows for multi-agent optimization with spatio-temporal compressions. The central aim of multi-agent optimization is for a network of agents to collaboratively solve a system-level optimization…

系统与控制 · 电气工程与系统科学 2024-11-18 Zihao Ren , Lei Wang , Deming Yuan , Hongye Su , Guodong Shi

This research is aimed to solve the tweet/user geolocation prediction task and provide a flexible methodology for the geotagging of textual big data. The suggested approach implements neural networks for natural language processing (NLP) to…

计算与语言 · 计算机科学 2025-01-13 Kateryna Lutsai , Christoph H. Lampert

With the rapid development of social media such as Twitter and Weibo, detecting keywords from a huge volume of text data streams in real-time has become a critical problem. The keyword detection problem aims at searching important…

计算与语言 · 计算机科学 2023-07-04 Yifei Yue

An existing approach for dealing with massive data sets is to stream over the input in few passes and perform computations with sublinear resources. This method does not work for truly massive data where even making a single pass over the…

计算复杂性 · 计算机科学 2007-05-23 Jon Feldman , S. Muthukrishnan , Anastasios Sidiropoulos , Cliff Stein , Zoya Svitkina

Systems and individuals produce data continuously. On the Internet, people share their knowledge, sentiments, and opinions, provide reviews about services and products, and so on. Automatically learning from these textual data can provide…