@inproceedings{04af71d5b2b3428881356b4e26bb6fdc,
title = "Detecting Alzheimer{\textquoteright}s disease using directed graphs",
abstract = "The neurobiology of Alzheimer{\textquoteright}s disease (AD) has been extensively studied by applying network analysis techniques to activation patterns in fMRI images. However, the structure of the directed networks representing the activation patterns, and their differences in healthy and Alzheimer{\textquoteright}s people remain poorly understood. In this paper, we aim to identify the differences in fMRI activation network structure for patients with AD, late mild cognitive impairment (LMCI) and early mild cognitive impairment (EMCI). We use a directed graph theoretical approach combined with entropic measurements to distinguish subjects falling into these three categories and the normal healthy control (HC) group. We explore three methods. The first is based on applying linear discriminant analysis to vectors representing the in and out degree statistics of different anatomical regions. The second uses an entropic measure of node assortativity to gauge the asymmetries in the node with in and out degree. The final approach selects the most salient anatomical brain regions and uses the degree statistics of the connecting directed edges.",
keywords = "Alzheimer{\textquoteright}s disease (AD), Directed graphs entropy, FMRI Networks",
author = "Jianjia Wang and Wilson, {Richard C.} and Hancock, {Edwin R.}",
note = "Publisher Copyright: {\textcopyright} Springer International Publishing AG 2017.; 11th IAPR-TC-15 International Workshop on Graph-Based Representations in Pattern Recognition, GbRPR 2017 ; Conference date: 16-05-2017 Through 18-05-2017",
year = "2017",
doi = "10.1007/978-3-319-58961-9_9",
language = "English",
isbn = "9783319589602",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer Verlag",
pages = "94--104",
editor = "Pasquale Foggia and Mario Vento and Cheng-Lin Liu",
booktitle = "Graph-Based Representations in Pattern Recognition - 11th IAPR-TC-15 International Workshop, GbRPR 2017, Proceedings",
}