C
Christian Tchito Tchapga
Researcher at University of Buea
Publications - 7
Citations - 124
Christian Tchito Tchapga is an academic researcher from University of Buea. The author has contributed to research in topics: Multistability & Computer science. The author has an hindex of 3, co-authored 5 publications receiving 20 citations.
Papers
More filters
Journal ArticleDOI
Biomedical Image Classification in a Big Data Architecture Using Machine Learning Algorithms.
Christian Tchito Tchapga,Thomas Attia Mih,Aurelle Tchagna Kouanou,Theophile Fozin Fonzin,Platini Kuetche Fogang,Brice Anicet Mezatio,Daniel Tchiotsop +6 more
TL;DR: A survey of classification algorithms for biomedical images can be found in this paper, where the authors describe how these algorithms can be applied to a big data architecture by using the Spark framework and propose the classification workflow based on the observed optimal algorithms, Support Vector Machine and Deep Learning as drawn from the literature.
Journal ArticleDOI
Control of multistability with selection of chaotic attractor: application to image encryption
Zeric Tabekoueng Njitacke,Zeric Tabekoueng Njitacke,Michael Ekonde Sone,Thophile Fonzin Fozin,Nestor Tsafack,Gervais Dolvis Leutcho,Christian Tchito Tchapga +6 more
TL;DR: A linear augmentation control scheme is used to control a periodic attractor in the windows of multistability to a final chaotic attractor which survives to the variation of initial seed useful for image encryption.
Journal ArticleDOI
Securing Data in an Internet of Things Network Using Blockchain Technology: Smart Home Case
Aurelle Tchagna Kouanou,Christian Tchito Tchapga,Michael Sone Ekonde,Valery M. Monthe,Brice Anicet Mezatio,J Manga,Gaël R. Simo,Yves Muhozam +7 more
Journal ArticleDOI
Control of Coexisting Attractors with Preselection of the Survived Attractor in Multistable Chua’s System: A Case Study
Zeric Tabekoueng Njitacke,Zeric Tabekoueng Njitacke,Theophile Fonzin Fozin,Christian Tchito Tchapga,Gervais Dolvis Leutcho,K. Marcel Wouapi,Jacques Kengne,Carlos Arturo Loredo-Villalobos +7 more
TL;DR: Nonlinear dynamical tools including bifurcation diagrams, standard Lyapunov exponents, phase portraits, and cross section of initial conditions are exploited to reveal the selection scenarios of the survived attractor in the multistability control process of Chua's system.
Journal ArticleDOI
An Overview of Supervised Machine Learning Methods and Data Analysis for COVID-19 Detection.
Aurelle Tchagna Kouanou,Thomas Mih Attia,Cyrille Feudjio,Anges Fleurio Djeumo,Adèle Ngo Mouelas,Mendel Patrice Nzogang,Christian Tchito Tchapga,Daniel Tchiotsop +7 more
TL;DR: In this article, support vector machine (SVM) was used as the best performant for the COVID-19 diagnosis, achieving an accuracy of 99.29%, sensitivity of 92.79%, and specificity of 100% with the dataset from Kaggle (https://www.kaggle.org/record/3886927#.YIluB5AzbMV).