RDF Graph Measures for the Analysis of RDF Graphs

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lexvo

Data and Resources

Measures

Notation Description Value
m graph volume (no. of edges) 726,674
n graph size (no. of vertices) 645,933
dmax max degree 98,900
d+max max in-degree 98,944
d-max
Effective measure!Score: 0.04

Datasets in this domain can be very well described by means of this particular measure.

max out-degree 812
z mean total degree 2.25
h+
h-index, respecting in-degree
Known from citation networks, this measure is an indicator for the importance of a vertex in the graph, similar to a centrality measure. A value of h means that for the number of h vertices the degree of these vertices is greater or equal to h. A high value of h could be an indicator for a "dense" graph and that its vertices are more "prestigious". The value is computed by respecting the in-degree distribution of the graph, denoted as h+.
64
h h-index, respecting total degree 320
pmu fill, respecting unique edges only 0
p fill, respecting overall edges 0
mp
parallel edges
Based on the measure mu, this is the number of parallel edges, i.e., the total number of edges that share the same pair of source and target vertices. It is computed by subtracting mu from the total number of edges m, i.e. mp = m – mu.
9,079
mu
unique edges
In RDF, a pair of subject and object resources may be described with more than one predicate. Hence, in the graphs, there may exist a fraction of all edges that share the same pair of (subject and object) vertices. The value for mu represents the total number of edges without counting these multiple edges between a pair of vertices.
717,595
y reciprocity 0.03
δ
Effective measure!Score: 0.237

Datasets in this domain can be very well described by means of this particular measure.

diameter (approximated)
The diameter is the longest shortest path between a pair of two vertices in the graph (as there can be more than one path for the pair of vertices). As this requires all possible paths to be computed, this is a very computational intensive measure. We used the pseudo_diameter-algorithm provided by graph-tool, which is an approximation method for the diameter of the graph. As the graph can have many components, this algorithm very often returns the value of 1. If this should be the case for this graph, we compute the diameter for the largest connecting component.
2
PR max pagerank value 0.007
Cd+ max in-degree centrality 0.153
Cd- max out-degree centrality 0.001
Cd max degree centrality 0.153
α powerlaw exponent, degree distribution 2.096
dminα dmin for α 12
α+ powerlaw exponent, in-degree distribution 3.314
dminα+ dmin for α+ 33
σ+ standard deviation, in-degree distribution 123.513
σ- standard deviation, out-degree distribution 10.82
cv+ coefficient variation, in-degree distribution 10,978.9
cv- coefficient variation, out-degree distribution 961.73
σ2+ variance, in-degree distribution 15,255.474
σ2- variance, out-degree distribution 117.061
C+d graph centralization 0.153
z-
Effective measure!Score: 0.174

Datasets in this domain can be very well described by means of this particular measure.

mean out-degree 5.636
$$deg^{--}(G)$$
Effective measure!Score: 0.168

Datasets in this domain can be very well described by means of this particular measure.

max partial out-degree 397
$$\overline{deg^{--}}(G)$$ mean partial out-degree 2.274
$$deg^-_L(G)$$
Effective measure!Score: 0.098

Datasets in this domain can be very well described by means of this particular measure.

max labelled out-degree 13
$$\overline{deg^-_L}(G)$$ mean labelled out-degree 2.478
$$deg^-_D(G)$$
Effective measure!Score: 0.037

Datasets in this domain can be very well described by means of this particular measure.

max direct out-degree 808
$$\overline{deg^-_D}(G)$$ mean direct out-degree 5.565
z+ mean in-degree 1.355
$$deg^{++}(G)$$ max partial in-degree 98,944
$$\overline{deg^{++}}(G)$$ mean partial in-degree 1.321
$$deg^+_L(G)$$ max labelled in-degree 3
$$\overline{deg^+_L}(G)$$ mean labelled in-degree 1.026
$$deg^+_D(G)$$ max direct in-degree 98,944
$$\overline{deg^+_D}(G)$$
Effective measure!Score: 0.045

Datasets in this domain can be very well described by means of this particular measure.

mean direct in-degree 1.338
$$deg_P(G)$$ max predicate degree 220,484
$$\overline{deg_P}(G)$$ mean predicate degree 38,246
$$deg^+_P(G)$$ max predicate in-degree 107,517
$$\overline{deg^+_P}(G)$$ mean predicate in-degree 16,815.737
$$deg^-_P(G)$$ max predicate out-degree 170,896
$$\overline{deg^-_P}(G)$$ mean predicate out-degree 28,959.947
$$\propto_{s-o}(G)$$ subject-object ratio 0.03
$$r_L(G)$$ ratio of repreated predicate lists 0.994
$$deg_{PL}(G)$$ max predicate list degree 42,948
$$\overline{deg_{PL}}(G)$$ mean predicate list degree 160.779
$$C_G$$ distinct classes 73,998
$$S^C_G$$ all different typed subjects 59,525
$$r_T(G)$$ ratio of typed subjects 0.462

Plots

No degree distribution available

No in-degree distribution plot available

Last update of this page: 25 March 2020 13:38:38 CET