2024 Small-worldness index

Small-worldness index

Author: tbya

August undefined, 2024

WebJan 23, 2024 · The small-worldness index can simultaneously reflect the integration and segregation. Thus, small-worldness might be more sensitive than the other network measures because two measures act as variables. It can be assumed that alterations in structural covariance network with a decrease in the brain efficiency may play an … WebDec 21, 2024 · Further analyses of brain networks suggested the loss decision-making brain network to have a larger small-worldness index given individuals' loss aversion. Taken …

networkx.algorithms.smallworld — NetworkX 3.1 documentation

WebCompute the small-worldness index (Humphries & Gurney, 2008) relying on the global transitity of the network (Newman, 2003) and on its average shortest path length. Usage smallworldness (x, B = 1000, up = 0.995, lo = 0.005) Arguments Details The function computes the transitivity of the target network and the average shortest path length. WebFeb 27, 2024 · I am trying to calculate small-worldness index using package qgraph. I create an igraph object and use the function: smallworldness(). The result is [Inf] or [NaN]. What … thalamus beschadigd

Network ‘Small-World-Ness’: A Quantitative Method for

WebSep 13, 2024 · Exploratory partial Pearson’s correlation analyses showed that the small-worldness indices were positively correlated with ALSFRS ( r = 0.27, P = 0.017, Fig. 3 a); the degree centrality of the right medial orbital frontal cortex was negatively correlated with depression symptoms ( r = − 0.30, P = 0.011) (Fig. 3 b) and the nodal efficiency of the … WebInclusion criteria for CTS patients are as follows: (1) pain, numbness, and tingling in median nerve-innervated territories for more than 3 mo, which were typically worse at night; (2) positive Tinel sign or Phalen's test2; (3) nerve conduction studies indicated mild (distal sensory latency > 3.7 ms) or moderate (distal sensory latency > 3.7 ms … WebApr 30, 2008 · A network is now deemed a ‘small-world’ if S>1 - an assertion which may be tested statistically. We then examined the behavior of S on a large data-set of real-world … synonyms of buddy

networkx.algorithms.smallworld — NetworkX 3.1 documentation

Antagonism at the NR2B subunit of NMDA receptors induces

WebSmall-world network Full size image Interpretation of graph metrics in the context of cognitive and behavioral outcomes is an area of ongoing investigation. It is likely an oversimplification to interpret a higher or lower value of most metrics as necessarily a positive or negative outcome (Bullmore & Bassett, 2011 ). WebBoth density and small worldness increase rapidly starting in 2003, reaching a maximum in 2004 and decreasing rapidly, falling to zero in 2005. The observed temporal development is more pronounced for small worldness, by an order of magnitude. More specifically, the small worldness increase is about by 3000%, while the density increase is about ... synonyms of bumblingWebCompute the small-worldness index (Humphries & Gurney, 2008) relying on the global transitity of the network (Newman, 2003) and on its average shortest path length. Usage … thalamus basic function

"WebSource code for networkx.algorithms.smallworld. """Functions for estimating the small-world-ness of graphs. A small world network is characterized by a small average shortest path length, and a large clustering coefficient. Small-worldness is commonly measured with the coefficient sigma or omega. Both coefficients compare the average clustering ... " - Small-worldness index

Small-worldness index

WebMar 31, 2024 · Compute the small-worldness index (Humphries & Gurney, 2008) relying on the global transitity of the network (Newman, 2003) and on its average shortest path … WebThe small-world coefficient is defined as: sigma = C/Cr / L/Lr where C and L are respectively the average clustering coefficient and average shortest path length of G. Cr and Lr are respectively the average clustering coefficient and average shortest path length of an equivalent random graph.

Did you know?

WebNov 28, 2024 · From Table 5, within global topological properties three groups had a small-world connectome organisation, as the mean small-worldness index was greater than one. There were statistically significant differences in terms of small-worldness index (p = 0.004). Patients receiving chemotherapy had the lowest mean small-worldness index, … http://www.sachaepskamp.com/qgraph/reference/smallworldness.html

WebDec 14, 2024 · SW is a particularly interesting property in that the healthy human brain is a small-world network ( 10, 17 ), but brain networks reportedly deviate from small-world networks in some neurological conditions such as Alzheimer's disease ( 17 ), depression ( 18 ), and schizophrenia ( 19 ). WebFeb 21, 2024 · In order to examine whether or not a network does satisfy the small-worldness property, three Graph Theoretic metrics are calculated across a range of intra-cluster rewiring probabilities, \...

WebThe Small World Index (SWI) is defined as = Both ω′ and SWI range between 0 and 1, and have been shown to capture aspects of small-worldness. However, they adopt slightly … WebOct 13, 2024 · The small-worldness index S provides a canonical measure of the degree to which a network is small-world. Here, we take a slightly modified version, ...

WebThe small-worldness index is then computed as the transitivity (normalized by the random transitivity) over the average shortest path length (normalized by the random average shortest path length). The lo and up quantiles of the distribution of the random networks are also returned for both the transitivity and the average shortest path length.

WebNational Center for Biotechnology Information synonyms of bumpyWebSep 21, 2024 · Global and nodal properties were calculated and compared between two groups, including small-worldness index, clustering coefficient, characteristic path length, degree centrality ( DC ), betweenness centrality ( BC) and nodal efficiency. Both LDH and HC groups showed small-world architecture in the functional network of brain. synonyms of build onWebHumphries and Gurney [ 34] introduced a small-worldness metric which uses the network-average clustering coefficient and path length values, relative to these metrics for random networks, to provide an overview of connectivity in the entire network. synonyms of burglarhttp://www.sachaepskamp.com/qgraph/reference/smallworldness.html#:~:text=The%20small-worldness%20index%20is%20then%20computed%20as%20the,the%20transitivity%20and%20the%20average%20shortest%20path%20length. synonyms of busilyWebCompute the small-worldness index (Humphries & Gurney, 2008) relying on the global transitity of the network (Newman, 2003) and on its average shortest path length. RDocumentation. Search all packages and functions. qgraph ... Even if the small-worldness is higher than three, ... synonyms of burnoutWebJul 1, 2011 · In this article, for a number of real-world as well as Watts–Strogatz model networks, we investigated the profile of the network small-worldness as random failures, i.e. errors, or systematic failures, i.e. attacks, occurred in the nodes. In errors nodes are randomly removed along with all their tipping edges, while in attacks the nodes with ... synonyms of bushyWebsmallworldness: Compute the small-worldness index. Description Compute the small-worldness index (Humphries & Gurney, 2008) relying on the global transitity of the … synonyms of bureaucracy