Representation of a Physio-psychological Index Through Constellation Graphs
نویسندگان
چکیده
Fingertip pulsations (plethysmograms) were found to obey chaotic dynamics [1]. We applied chaos theory to analysis of the time series of plethysmograms under various human physio-psychological conditions. It found out that the largest Lyapunov exponent of the time series could be used to characterize physio-psychological status. A visual representation method based on constellation graphs was developed to indexing the changes in the largest Lyapunov exponent.
منابع مشابه
Distinction of Patterns within Time-Series Data Using Constellation Graphs
Constellation graphs for time-series data are very effective tool for displaying a physio-psychological index. In this study, we recorded fingertip pulse waves of elderly subjects, carried out chaos analysis on the plethysmogram data thus obtained, and examined their relationship with dementia. We discovered the Lyapunov exponent of the time series had a clear relationship with the severity of ...
متن کاملWiener Index of Graphs using Degree Sequence
The Wiener index of a graph is defined as the sum of distances between all pairs of vertices in a connected graph. Wiener index correlates well with many physio chemical properties of organic compounds and as such has been well studied over the last quarter of a century. In this paper we prove some general results on Wiener Index for graphs using degree sequence.
متن کاملProduct version of reciprocal degree distance of composite graphs
A {it topological index} of a graph is a real number related to the graph; it does not depend on labeling or pictorial representation of a graph. In this paper, we present the upper bounds for the product version of reciprocal degree distance of the tensor product, join and strong product of two graphs in terms of other graph invariants including the Harary index and Zagreb indices.
متن کاملStudy of Iconographic Transformation of Pictorial Sample in Images of Merrkh- Bahram in Islamic Era
The study of the image of Merrīkh- Bahram in Islamic era implies both formal and thematic similarities with constellation of Barsavosh and Perseus. The three images illustrate one Man with a bare sword and severed head in his hand. This similarity raises this question that what is the relationship of these images? In other word, which image is the precedent to the later representations? This st...
متن کاملGraphs with smallest forgotten index
The forgotten topological index of a molecular graph $G$ is defined as $F(G)=sum_{vin V(G)}d^{3}(v)$, where $d(u)$ denotes the degree of vertex $u$ in $G$. The first through the sixth smallest forgotten indices among all trees, the first through the third smallest forgotten indices among all connected graph with cyclomatic number $gamma=1,2$, the first through<br /...
متن کامل