A Transfer Machine Learning Matching Algorithm for Source and Target (TL-MAST)

Autor: Robin Hirt, Florin Tim Peters
Rok vydání: 2020
Předmět:
Zdroj: Machine Learning, Optimization, and Data Science ISBN: 9783030645793
LOD (2)
Popis: Sequentially transferring machine learning (ML) models in a row over several data sets can result in an improvement of performance. Considering an increasing number of data sets, the possible number “transfer paths” of a transfer grows exponentially. Thus, in this paper, we present TL-MAST, a matching algorithm for identifying the optimal transfer of ML models to reduce the computational effort across a number of data sets—determining their transferability. This is achieved by suggesting suitable source data sets for pairing with a target data set at hand. The approach is based on a layer-wise, metric-supported comparison of individually trained base neural networks through meta machine learning as a proxy for their performance in a crosswise transfer scenario. We evaluate TL-MAST on two real-world data sets: a unique sales data set composed of two restaurant chains and a publicly available stock data set. We are able to identify the best performing transfer paths and therefore, drastically decrease computational time to find the optimal transfer.
Databáze: OpenAIRE