학술논문

Explainable Machine Learning: The importance of a system-centric perspective [Lecture Notes]
Document Type
Periodical
Author
Source
IEEE Signal Processing Magazine IEEE Signal Process. Mag. Signal Processing Magazine, IEEE. 40(2):165-172 Mar, 2023
Subject
Signal Processing and Analysis
Communication, Networking and Broadcast Technologies
Computing and Processing
Education
Deep learning
Image recognition
Machine learning algorithms
Signal processing algorithms
Speech recognition
Signal processing
Language
ISSN
1053-5888
1558-0792
Abstract
The landscape in the context of several signal processing applications and even education [1] appears to be significantly affected by the emergence of machine learning (ML) and particularly deep learning (DL). The main reason for this is the ability of DL to model complex and unknown relationships between signals and the tasks of interest. In particular, supervised DL algorithms have been fairly successful at recognizing perceptually or semantically useful signal information in different applications (e.g., identifying objects or regions of interest from image/video signals or recognizing spoken words from speech signals, such as in speech recognition). In all of these tasks, the training process uses labeled data to learn a mapping function (typically implicitly) from signals to the desired information (class label or target label). The trained DL model is then expected to correctly recognize/classify relevant information in a given test signal. Therefore, a DL-based framework is, in general, very appealing since the features and characteristics of the required mapping are learned almost exclusively from the data without resorting to explicit model/system development.