Automatic classification of Toco-signals: An approach towards comprehensive monitoring of labour progress

R. Jyothi, Rijul Saurabh Soans, Parvati V. Bhat

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Childbirth is an intricate process which is marked by an increased cervical dilation rate caused due to steady increments in the frequency and strength of uterine contractions. The contractions may be characterized by its strength, duration and frequency (count) - which are monitored through Tocography. However, the procedure is prone to subjectivity and an automated approach for the classification of the contractions is needed. In this paper, we use three different Weighted K-Nearest Neighbor classifiers and Decision Trees to classify the contractions into three types: Mild, Moderate and Strong. Further, we note the fact that our training data consists of fewer samples of Contractions as compared to those of Non-contractions - resulting in "Class Imbalance". Hence, we use the Synthetic Minority Oversampling Technique (SMOTE) in conjunction with the K-NN classifier and Decision Trees to alleviate the problems of the same. The ground truth for Tocography signals was established by a doctor having an experience of 36 years in Obstetrics and Gynaecology. The annotations are in three categories: Mild (33 samples), Moderate (64 samples) and Strong (96 samples), amounting to a total of 193 contractions whereas the number of Non-contraction samples was 1217. Decision Trees using SMOTE performed the best with accuracies of 95%, 98.25% and 100% for the aforementioned categories, respectively. The sensitivities achieved for the same are 96.67%, 96.52% and 100% whereas the specificities amount to 93.33%, 100% and 100%, respectively. Our method may be used to monitor the labour progress efficiently.

Original languageEnglish
Title of host publication2016 International Conference on Signal Processing and Communications, SPCOM 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509017461
DOIs
Publication statusPublished - 16-11-2016
Event11th International Conference on Signal Processing and Communications, SPCOM 2016 - Bangalore, India
Duration: 12-06-201615-06-2016

Conference

Conference11th International Conference on Signal Processing and Communications, SPCOM 2016
CountryIndia
CityBangalore
Period12-06-1615-06-16

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Signal Processing

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    Jyothi, R., Soans, R. S., & Bhat, P. V. (2016). Automatic classification of Toco-signals: An approach towards comprehensive monitoring of labour progress. In 2016 International Conference on Signal Processing and Communications, SPCOM 2016 [7746694] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SPCOM.2016.7746694