If you publish results based on this graph, please quote the references suggested in the
This graph is a time-aware graph generated by
combining twelve monthly snapshot of the .uk domain collected for the
the DELIS project (see also this paper for some elaboration).
The DELIS (Dynamically Evolving
Large-scale Information Systems) European FP6 project dealt with methods,
techniques, tools, and prototypical implementations coping with challenges
imposed by the size and dynamics of today's and especially future information
systems. The "DELIS dataset" is a collection of web graphs collected within
such project by taking snapshots at a monthly rate focussing on the
.uk domain: the choice of the domain was the most obvious, given the
European nature of the project and in consideration of the linguistic and
social centrality of the UK within Europe; the frequency chosen is the largest
possible that does not raise issues of unpoliteness. The first snapshot was
collected in May 2006. All snapshots were collected at the DSI, using hardware partly funded by the
DELIS project. A detailed description of the dataset can be found at the end
of this page.
The graph is an ArcLabelledImmutableGraph
whose labels are instances of CompressedIntLabel.
The documentation of the latter class explains how to access both node and the arc labels. In both cases, a label is a 12-bit mask
telling in which of the twelve snapshot the node or arc was present.
If you publish results based on these graphs, please acknowledge our work by quoting the following paper:
AUTHOR = "Paolo Boldi and Massimo Santini and Sebastiano Vigna",
TITLE = "A Large Time-Aware Graph",
JOURNAL = "SIGIR Forum",
YEAR = 2008,
VOLUME = 42,
NUMBER = 2,
PAGES = "33--38"