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Soft computing hybrids for FOREX rate prediction: a comprehensive review. (English) Zbl 1458.91232

Summary: Foreign exchange rate prediction is an important problem in finance, and it attracts many researchers owing to its complex nature and practical applications. Even though this problem is well studied using various statistical and machine learning techniques in stand-alone mode, various soft computing hybrids were also proposed to solve this problem with the aim of obtaining more accurate predictions during 1998–2017. This paper presents a comprehensive review of 82 such soft computing hybrids found in the literature. Almost all authors in this area demonstrated that their proposed hybrids outperformed the stand-alone statistical and intelligent techniques in terms of accuracy. It is conspicuous from the review that artificial neural network based hybrids turned out to be more prevalent, more pervasive and more powerful. This observation is corroborated by the fact that both evolutionary computation based hybrids as well as fuzzy logic based hybrids also contain some architecture of neural networks as a predominant constituent. The review concludes with a set of insightful remarks and future directions that are very useful to budding researchers and practitioners alike.

MSC:

91G80 Financial applications of other theories
68T05 Learning and adaptive systems in artificial intelligence
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