SNAP/email-Eu-core-temporal
SNAP network: email-EU-core-temporal network
| Name |
email-Eu-core-temporal |
| Group |
SNAP |
| Matrix ID |
2785 |
|
Num Rows
|
1,005 |
|
Num Cols
|
1,005 |
|
Nonzeros
|
24,929 |
|
Pattern Entries
|
24,929 |
|
Kind
|
Directed Temporal Multigraph |
|
Symmetric
|
No |
|
Date
|
2017 |
|
Author
|
A. Paranjape, A. R. Benson, and J. Leskovec |
|
Editor
|
J. Leskovec |
| Structural Rank |
|
| Structural Rank Full |
|
|
Num Dmperm Blocks
|
|
|
Strongly Connect Components
|
203 |
|
Num Explicit Zeros
|
0 |
|
Pattern Symmetry
|
71.1% |
|
Numeric Symmetry
|
14.4% |
|
Cholesky Candidate
|
no |
|
Positive Definite
|
no |
|
Type
|
integer |
| Download |
MATLAB
Rutherford Boeing
Matrix Market
|
| Notes |
SNAP (Stanford Network Analysis Platform) Large Network Dataset Collection,
Jure Leskovec and Anrej Krevl, http://snap.stanford.edu/data, June 2014.
email: jure at cs.stanford.edu
email-Eu-core temporal network
https://snap.stanford.edu/data/email-Eu-core-temporal.html
Dataset information
The network was generated using email data from a large European research
institution. We have anonymized information about all incoming and outgoing
email between members of the research institution. The e-mails only
represent communication between institution members (the core), and the
dataset does not contain incoming messages from or outgoing messages to the
rest of the world. A directed edge (u, v, t) means that person u sent an
e-mail to person v at time t. A separate edge is created for each recipient
of the e-mail. We also have four sub-networks corresponding to the
communication between members of four different departments at the
institution. Node IDs in the sub-networks do not correspond to the same
node ID in the entire network.
The static version of this network is the same as the largest weakly
connected component of the email-Eu-core network
(https://snap.stanford.edu/data/email-Eu-core.html) (although the node IDs
are not the same).
Dataset statistics (email-Eu-core-temporal)
Nodes 986
Temporal Edges 332,334
Edges in static graph 24,929
Time span 803 days
Dataset statistics (email-Eu-core-temporal-Dept1)
Nodes 309
Temporal Edges 61,046
Edges in static graph 3,031
Time span 803 days
Dataset statistics (email-Eu-core-temporal-Dept2)
Nodes 162
Temporal Edges 46,772
Edges in static graph 1,772
Time span 803 days
Dataset statistics (email-Eu-core-temporal-Dept3)
Nodes 89
Temporal Edges 12,216
Edges in static graph 1,506
Time span 802 days
Dataset statistics (email-Eu-core-temporal-Dept4)
Nodes 142
Temporal Edges 48,141
Edges in static graph 1,375
Time span 803 days
Source (citation)
Ashwin Paranjape, Austin R. Benson, and Jure Leskovec. "Motifs in Temporal
Networks." In Proceedings of the Tenth ACM International Conference on Web
Search and Data Mining, 2017.
Files
File Description
email-Eu-core-temporal.txt.gz
All e-mails between members of the institution
email-Eu-core-temporal-Dept1.txt.gz
All e-mails between members of Department 1 at the institution
email-Eu-core-temporal-Dept2.txt.gz
All e-mails between members of Department 2 at the institution
email-Eu-core-temporal-Dept3.txt.gz
All e-mails between members of Department 3 at the institution
email-Eu-core-temporal-Dept4.txt.gz
All e-mails between members of Department 4 at the institution
Data format
SRC DST UNIXTS
where edges are separated by a new line and
SRC: id of the source node (a user)
TGT: id of the target node (a user)
TS: timestamp (in seconds), starting from 0
---------------------------------------------------------------------------
Notes on inclusion into the SuiteSparse Matrix Collection, July 2018:
---------------------------------------------------------------------------
The graphs in the SNAP data set are 0-based, with nodes numbered 0
to n-1 for each graph.
In the SuiteSparse Matrix Collection, Problem.A is the static graph
of all 1005 members where A(i,j) is the number of emails that
person 1+i sent to person 1+j (1+ offset in the MATLAB matrix since
the SNAP graph is 0-based), for all time. Problem.aux.temporal_edges
is a dense 332,334-by-3 matrix where each edge is a row in the
matrix, with source, target, and timestamp (starting from time = 0).
Problem.aux.Dept{1:4} is a cell array of each departmental static
graph. Problem.aux.Dept_temporal_edges{1:4} has the temporal
edges of each departmental graph.
The Problem.A and Problem.aux.Dept{1:4} matrices are larger than
the # of nodes listed above, to preserve the node numbers of
the largest weakly component as provided in the SNAP data set.
Since the networks in the SuiteSparse Matrix Collection are all
1-based, the temporal edges are (1+i,1+j,t) for each SNAP
temporal edge (i,j,t), which is 0-based.
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