Skip to content
Go to file

Latest commit


Git stats


Failed to load latest commit information.
Latest commit message
Commit time


By Tim Henderson, Copyright 2016, All Rights Reserved

Licensed under the GNU GPL version 3. This program is part of a paper currently under review. If you use this program as part of an academic paper please contact me for a citation.

Example Usage

Collect a sample of frequent subgraphs:

$ graple -o /tmp/output \
         -c /tmp/cache \
         --support=4 \
         --sample-size=10 \
         --min-vertices=8 \
         --probabilities \
2016/03/15 21:29:52 Number of goroutines = 2
2016/03/15 21:29:53 Loaded graph, about to start mining
2016/03/15 21:29:53 found mfsg 14:13(0:this)(1:return)(2:cwru.hacsoc.expr.Parser.lex)(3:cwru.hacsoc.expr.Parser.lex)(4:new)(5:call cwru.hacsoc.expr.Lexer.peek)(6:call cwru.hacsoc.expr.Node.<init>)(7:call cwru.hacsoc.expr.Tokens.ordinal)(8:array index)(9:switch)(10:cwru.hacsoc.expr.Parser$1.$SwitchMap$cwru$hacsoc$expr$Tokens)(11:cwru.hacsoc.expr.Match.token)(12:call[9->1:][9->3:][9->4:][9->6:][9->12:][5->11:cwru.hacsoc.expr.Match:1][11->7:cwru.hacsoc.expr.Tokens:1][7->8:int:2][8->9:int:0][10->8:int[]:1][2->5:cwru.hacsoc.expr.Lexer:1][3->12:cwru.hacsoc.expr.Lexer:1][0->2:cwru.hacsoc.expr.Parser:1][0->3:cwru.hacsoc.expr.Parser:1]
2016/03/15 21:29:53 found mfsg but it was too small
2016/03/15 21:29:53 found mfsg but it was too small
2016/03/15 21:29:53 found mfsg but it was too small
2016/03/15 21:29:53 found mfsg but it was too small
2016/03/15 21:29:53 found mfsg but it was too small

Compute the selection probabilities using SuiteSparse

$ graple-selection-probabilities /tmp/output
sel-pr -m /tmp/output/0/matrices.json -o /tmp/output/0/
cowardly refusing to overwrite output
sel-pr -m /tmp/output/1/matrices.json -o /tmp/output/1/
cowardly refusing to overwrite output

Example Data

The example data was computed from which is a simple arithmetic expression calculator. It was computed using Command used (on Ubuntu 14.04) replace <path>s with the appropriate directories.

java -Xmx6g \
    -jar <path>/jpdg/target/jpdg-git-master.jar \
    -b <path>/expr/build/classes/main \
    -l op \
    -o /tmp/expr-pdg.veg \
    -c "<path>/expr/build/classes/main:


graple computes a sample of frequent subgraphs at a given support level.


    $ graple -o <path> -c <path> \
             --support=<int> --sample-size=<int> \
             [Options]* \
             [Development Options]* \

    The input path should be a file (or a gzipped file) in the veg format.


    $ graple -o /tmp/output -c /tmp/cache \
             --support=4 --sample-size=10 $HOME/data/expr.gz

    -h, --help                  view this message
    -o, --output=<dir>          output directory (will be over written)
    -c, --cache=<dir>           disk cache directory (will be over written)
    -s, --support=<int>         the minimum support
    -m, --min-vertices=<int>    minumum number of vertices required to sample
                                a subgraph
    --sample-size=<int>         number of samples to collect
    --probabilities             compute the probability matrices

Development Options
    --mem-profile=<path>        turn on heap profiling
    --cpu-profile=<path>        turn on cpu profiling

veg File Format
    The veg file format is a line delimited format with vertex lines and
    edge lines. For example:

    vertex	{"id":136,"label":""}
    edge	{"src":23,"targ":25,"label":"ddg"}

    Note: the spaces between vertex and {...} are tabs
    Note: the spaces between edge and {...} are tabs

veg Grammar
    line -> vertex "\n"
          | edge "\n"

    vertex -> "vertex" "\t" vertex_json

    edge -> "edge" "\t" edge_json

    vertex_json -> {"id": int, "label": string, ...}
    // other items are optional

    edge_json -> {"src": int, "targ": int, "label": int, ...}
    // other items are  optional


No description, website, or topics provided.




No packages published
You can’t perform that action at this time.