Results 61 to 70 of about 935,434 (195)

Efficient multi-label classification for evolving data streams [PDF]

open access: yes, 2010
Many real world problems involve data which can be considered as multi-label data streams. Efficient methods exist for multi-label classification in non streaming scenarios.
Bifet, Albert   +3 more
core   +1 more source

Finding Subcube Heavy Hitters in Analytics Data Streams

open access: yes, 2018
Data streams typically have items of large number of dimensions. We study the fundamental heavy-hitters problem in this setting. Formally, the data stream consists of $d$-dimensional items $x_1,\ldots,x_m \in [n]^d$.
Kveton, Branislav   +3 more
core   +1 more source

Clustering categorical data streams

open access: yesJournal of Computational Methods in Sciences and Engineering, 2011
In this paper, we propose an efficient clustering algorithm for analyzing categorical data streams. It has been proved that the proposed algorithm uses small memory footprints. We provide empirical analysis on the performance of the algorithm in clustering both synthetic and real data streams.
He, Zengyou   +3 more
openaire   +2 more sources

Mining data streams

open access: yesACM SIGMOD Record, 2005
The recent advances in hardware and software have enabled the capture of different measurements of data in a wide range of fields. These measurements are generated continuously and in a very high fluctuating data rates. Examples include sensor networks, web logs, and computer network traffic.
Gaber, M.   +2 more
openaire   +3 more sources

Apache Spark SVM for Predicting Obstructive Sleep Apnea

open access: yesBig Data and Cognitive Computing, 2020
Obstructive sleep apnea (OSA), a common form of sleep apnea generally caused by a collapse of the upper respiratory airway, is associated with one of the leading causes of death in adults: hypertension, cardiovascular and cerebrovascular disease. In this
Katie Jin, Sikha Bagui
doaj   +1 more source

rstream: Streams of Random Numbers for Stochastic Simulation [PDF]

open access: yes, 2005
The package rstream provides a unified interface to streams of random numbers for the R statistical computing language. Features are: * independent streams of random numbers * substreams * easy handling of streams (initialize, reset) * antithetic random ...
L'Ecuyer, Pierre, Leydold, Josef
core  

Deplump for Streaming Data

open access: yes2011 Data Compression Conference, 2011
We present a general-purpose, loss less compressor for streaming data. This compressor is based on the deplump probabilistic compressor for batch data. Approximations to the inference procedure used in the probabilistic model underpinning deplump are introduced that yield the computational asyptotics necessary for stream compression. We demonstrate the
Bartlett, N, Wood, F
openaire   +2 more sources

Active Fuzzy Weighting Ensemble for Dealing with Concept Drift

open access: yesInternational Journal of Computational Intelligence Systems, 2018
The concept drift problem is a pervasive phenomenon in real-world data stream applications. It makes well-trained static learning models lose accuracy and become outdated as time goes by.
Fan Dong   +3 more
doaj   +1 more source

Application of Imbalanced Data Classification Quality Metrics as Weighting Methods of the Ensemble Data Stream Classification Algorithms

open access: yesEntropy, 2020
In the era of a large number of tools and applications that constantly produce massive amounts of data, their processing and proper classification is becoming both increasingly hard and important.
Weronika Wegier, Pawel Ksieniewicz
doaj   +1 more source

GreedyDual-Join: Locality-Aware Buffer Management for Approximate Join Processing Over Data Streams [PDF]

open access: yes, 1997
We investigate adaptive buffer management techniques for approximate evaluation of sliding window joins over multiple data streams. In many applications, data stream processing systems have limited memory or have to deal with very high speed data streams.
Chang, Ching   +3 more
core  

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