scholarly journals Scalable real-time classification of data streams with concept drift

2017 ◽  
Vol 75 ◽  
pp. 187-199 ◽  
Author(s):  
Mark Tennant ◽  
Frederic Stahl ◽  
Omer Rana ◽  
João Bártolo Gomes
Keyword(s):  
Real Time ◽  
Data Streams ◽  
Concept Drift ◽  
Real Time Classification

Real-time classification of wooden boards

1991 ◽  
Author(s):  
Wolfgang Poelzleitner ◽  
Gert Schwingskakl
Keyword(s):  
Real Time ◽  
Real Time Classification

scholarly journals Measuring the Effectiveness of Adaptive Random Forest for Handling Concept Drift in Big Data Streams

Entropy ◽  
2021 ◽  
Vol 23 (7) ◽  
pp. 859
Author(s):  
Abdulaziz O. AlQabbany ◽  
Aqil M. Azmi
Keyword(s):  
Big Data ◽  
Random Forest ◽  
Real Time ◽  
Data Streams ◽  
Learning Algorithm ◽  
Concept Drift ◽  
The United States ◽  
Careful Consideration ◽  
Data Sets ◽  
Stream Data

We are living in the age of big data, a majority of which is stream data. The real-time processing of this data requires careful consideration from different perspectives. Concept drift is a change in the data’s underlying distribution, a significant issue, especially when learning from data streams. It requires learners to be adaptive to dynamic changes. Random forest is an ensemble approach that is widely used in classical non-streaming settings of machine learning applications. At the same time, the Adaptive Random Forest (ARF) is a stream learning algorithm that showed promising results in terms of its accuracy and ability to deal with various types of drift. The incoming instances’ continuity allows for their binomial distribution to be approximated to a Poisson(1) distribution. In this study, we propose a mechanism to increase such streaming algorithms’ efficiency by focusing on resampling. Our measure, resampling effectiveness (ρ), fuses the two most essential aspects in online learning; accuracy and execution time. We use six different synthetic data sets, each having a different type of drift, to empirically select the parameter λ of the Poisson distribution that yields the best value for ρ. By comparing the standard ARF with its tuned variations, we show that ARF performance can be enhanced by tackling this important aspect. Finally, we present three case studies from different contexts to test our proposed enhancement method and demonstrate its effectiveness in processing large data sets: (a) Amazon customer reviews (written in English), (b) hotel reviews (in Arabic), and (c) real-time aspect-based sentiment analysis of COVID-19-related tweets in the United States during April 2020. Results indicate that our proposed method of enhancement exhibited considerable improvement in most of the situations.

Real-Time Classification of Hand Motions Using Ultrasound Imaging of Forearm Muscles

2016 ◽  
Vol 63 (8) ◽  
pp. 1687-1698 ◽  
Author(s):  
Nima Akhlaghi ◽  
Clayton A. Baker ◽  
Mohamed Lahlou ◽  
Hozaifah Zafar ◽  
Karthik G. Murthy ◽  
...  
Keyword(s):  
Real Time ◽  
Ultrasound Imaging ◽  
Forearm Muscles ◽  
Real Time Classification
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