RT Journal Article T1 A study of the suitability of autoencoders for preprocessing data in breast cancer experimentation. A1 Macías-García, Laura A1 Luna-Romera, José María A1 García-Gutiérrez, Jorge A1 Martínez-Ballesteros, María A1 Riquelme-Santos, José C A1 González-Cámpora, Ricardo K1 Autoencoder K1 Biomedical data K1 Breast cancer K1 Deep learning K1 Preprocessing AB Breast cancer is the most common cause of cancer death in women. Today, post-transcriptional protein products of the genes involved in breast cancer can be identified by immunohistochemistry. However, this method has problems arising from the intra-observer and inter-observer variability in the assessment of pathologic variables, which may result in misleading conclusions. Using an optimal selection of preprocessing techniques may help to reduce observer variability. Deep learning has emerged as a powerful technique for any tasks related to machine learning such as classification and regression. The aim of this work is to use autoencoders (neural networks commonly used to feed deep learning architectures) to improve the quality of the data for developing immunohistochemistry signatures with prognostic value in breast cancer. Our testing on data from 222 patients with invasive non-special type breast carcinoma shows that an automatic binarization of experimental data after autoencoding could outperform other classical preprocessing techniques (such as human-dependent or automatic binarization only) when applied to the prognosis of breast cancer by immunohistochemical signatures. YR 2017 FD 2017-06-27 LK http://hdl.handle.net/10668/11360 UL http://hdl.handle.net/10668/11360 LA en DS RISalud RD Apr 19, 2025