Title
ExtraFerns: Fully Parallel Ensemble Learning Technique with Non-Greedy yet Minimal Memory Access Training
Abstract
Training machine learning models on edge devices is always a conflict with power consumption and computing cost. This paper proposes a hardware-oriented training method called extraFerns for a unique subset of decision tree ensembles, which drastically decreases memory access and optimizes each tree in parallel. The extraFerns gets the best of both worlds: extraTrees and randomFerns. As extraTrees does, it generates nodes by randomly selecting attributes and generating thresholds. After that, as randomFerns does, it builds ferns that are decision trees sharing an identical node in each depth. In contrast to other ensemble methods using greedy optimization, extraFerns try searching global optimization of each fern. The experimental results show that extraFerns requires only 4.3% and 4.1% memory access for training models with 3.0% and 1.2% accuracy drop compared with randomForest and extraTrees, respectively.
Year
DOI
Venue
2020
10.1109/CANDAR51075.2020.00027
2020 Eighth International Symposium on Computing and Networking (CANDAR)
Keywords
DocType
Volume
ensemble learning,fern ensemble,decision tree ensemble,non-greedy optimization,parallel optimization
Conference
11
Issue
ISSN
ISBN
2
2379-1888
978-1-7281-8222-3
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Shungo Kumazawa100.34
Kazushi Kawamura232.58
Thiem Van Chu312.74
Masato Motomura49127.81
Jaehoon Yu52822.44