Results 51 to 60 of about 26,646,267 (236)

Variability in Data Streams [PDF]

open access: yesProceedings of the 35th ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems, 2016
We consider the problem of tracking with small relative error an integer function $f(n)$ defined by a distributed update stream $f'(n)$. Existing streaming algorithms with worst-case guarantees for this problem assume $f(n)$ to be monotone; there are very large lower bounds on the space requirements for summarizing a distributed non-monotonic stream ...
Felber, David, Ostrovsky, Rafail
openaire   +2 more sources

Evaluation methods and decision theory for classification of streaming data with temporal dependence [PDF]

open access: yes, 2014
Predictive modeling on data streams plays an important role in modern data analysis, where data arrives continuously and needs to be mined in real time.
Bifet, Albert   +4 more
core   +2 more sources

HiSem-RAG: A Hierarchical Semantic-Driven Retrieval-Augmented Generation Method

open access: yesApplied Sciences
Traditional retrieval-augmented generation (RAG) methods struggle with hierarchical documents, often causing semantic fragmentation, structural loss, and inefficient retrieval due to fixed strategies.
Dongju Yang, Junming Wang
doaj   +1 more source

Statistical data reduction for streaming data [PDF]

open access: yes2017 New York Scientific Data Summit (NYSDS), 2017
Bulk of the streaming data from scientific simulations and experiments consists of numerical values, and these values often change in unpredictable ways over a short time horizon. Such data values are known to be hard to compress, however, much of the random fluctuation is not essential to the scientific application and could therefore be removed ...
Wu, Kesheng   +3 more
openaire   +3 more sources

Extension of Decision Tree Algorithm for Stream Data Mining Using Real Data [PDF]

open access: yes, 2009
Recently, because of increasing amount of data in the society, data stream mining targeting large scale data has attracted attention. The data mining is a technology of discovery new knowledge and patterns from the massive amounts of data, and what the ...
Ise, Masayuki   +3 more
core  

Saber: window-based hybrid stream processing for heterogeneous architectures [PDF]

open access: yes, 2015
Modern servers have become heterogeneous, often combining multicore CPUs with many-core GPGPUs. Such heterogeneous architectures have the potential to improve the performance of data-intensive stream processing applications, but they are not supported by
Costa, P   +5 more
core   +1 more source

Stream-Based Lossless Data Compression Applying Adaptive Entropy Coding for Hardware-Based Implementation

open access: yesAlgorithms, 2020
Toward strong demand for very high-speed I/O for processors, physical performance growth of hardware I/O speed was drastically increased in this decade. However, the recent Big Data applications still demand the larger I/O bandwidth and the lower latency
Shinichi Yamagiwa   +2 more
doaj   +1 more source

A Systematic Review of Density Grid-Based Clustering for Data Streams

open access: yesIEEE Access, 2022
Various applications, such as electronic business, satellite remote sensing, intrusion discovery, and network traffic monitoring, generate large unbounded data stream sequences at a rapid pace.
Mustafa Tareq   +3 more
doaj   +1 more source

Temporal Stream Algebra [PDF]

open access: yes, 2012
Data stream management systems (DSMS) so far focus on event queries and hardly consider combined queries to both data from event streams and from a database.
Brodt, Simon, Bry, François
core   +4 more sources

Method for Testing Combinational Circuits by Multiple Diagnostic Features Using Weight-Based Sum Codes Properties

open access: yesAutomation
The paper puts forth a methodology for the arrangement of calculation control at the outputs of combinational digital devices based on utilizing multiple diagnostic features.
Dmitry V. Efanov   +4 more
doaj   +1 more source

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