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Posted to commits@madlib.apache.org by fm...@apache.org on 2017/04/11 22:09:37 UTC
incubator-madlib-site git commit: PageRank example notebook
Repository: incubator-madlib-site
Updated Branches:
refs/heads/asf-site 8b8ad38db -> a7df2267a
PageRank example notebook
Project: http://git-wip-us.apache.org/repos/asf/incubator-madlib-site/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-madlib-site/commit/a7df2267
Tree: http://git-wip-us.apache.org/repos/asf/incubator-madlib-site/tree/a7df2267
Diff: http://git-wip-us.apache.org/repos/asf/incubator-madlib-site/diff/a7df2267
Branch: refs/heads/asf-site
Commit: a7df2267a7206f2d79653912df07497f68e32202
Parents: 8b8ad38
Author: Frank McQuillan <fm...@pivotal.io>
Authored: Tue Apr 11 15:09:07 2017 -0700
Committer: Frank McQuillan <fm...@pivotal.io>
Committed: Tue Apr 11 15:09:07 2017 -0700
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community-artifacts/PageRank-v1.ipynb | 774 +++++++++++++++++++++++++++++
1 file changed, 774 insertions(+)
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http://git-wip-us.apache.org/repos/asf/incubator-madlib-site/blob/a7df2267/community-artifacts/PageRank-v1.ipynb
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diff --git a/community-artifacts/PageRank-v1.ipynb b/community-artifacts/PageRank-v1.ipynb
new file mode 100644
index 0000000..32b1caf
--- /dev/null
+++ b/community-artifacts/PageRank-v1.ipynb
@@ -0,0 +1,774 @@
+{
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "# PageRank\n",
+ "The PageRank algorithm produces a probability distribution representing the likelihood that a person randomly traversing a graph will arrive at any particular vertex. PageRank was added in MADlib 1.11."
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 2,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stderr",
+ "output_type": "stream",
+ "text": [
+ "/Users/fmcquillan/anaconda/lib/python2.7/site-packages/IPython/config.py:13: ShimWarning: The `IPython.config` package has been deprecated. You should import from traitlets.config instead.\n",
+ " \"You should import from traitlets.config instead.\", ShimWarning)\n",
+ "/Users/fmcquillan/anaconda/lib/python2.7/site-packages/IPython/utils/traitlets.py:5: UserWarning: IPython.utils.traitlets has moved to a top-level traitlets package.\n",
+ " warn(\"IPython.utils.traitlets has moved to a top-level traitlets package.\")\n"
+ ]
+ }
+ ],
+ "source": [
+ "%load_ext sql"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 3,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "u'Connected: fmcquillan@madlib'"
+ ]
+ },
+ "execution_count": 3,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "# Greenplum 4.3.10.0\n",
+ "#%sql postgresql://gpdbchina@10.194.10.68:61000/madlib\n",
+ " \n",
+ "# PostgreSQL local\n",
+ "%sql postgresql://fmcquillan@localhost:5432/madlib\n",
+ "\n",
+ "# Greenplum 4.2.3.0\n",
+ "#%sql postgresql://gpdbchina@10.194.10.68:55000/madlib"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 3,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "1 rows affected.\n"
+ ]
+ },
+ {
+ "data": {
+ "text/html": [
+ "<table>\n",
+ " <tr>\n",
+ " <th>version</th>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <td>MADlib version: 1.11-dev, git revision: rc/v1.9alpha-rc1-138-gcc5ce09, cmake configuration time: Tue Apr 11 20:47:30 UTC 2017, build type: Release, build system: Linux-2.6.18-238.27.1.el5.hotfix.bz516490, C compiler: gcc 4.4.0, C++ compiler: g++ 4.4.0</td>\n",
+ " </tr>\n",
+ "</table>"
+ ],
+ "text/plain": [
+ "[(u'MADlib version: 1.11-dev, git revision: rc/v1.9alpha-rc1-138-gcc5ce09, cmake configuration time: Tue Apr 11 20:47:30 UTC 2017, build type: Release, build system: Linux-2.6.18-238.27.1.el5.hotfix.bz516490, C compiler: gcc 4.4.0, C++ compiler: g++ 4.4.0',)]"
+ ]
+ },
+ "execution_count": 3,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "%sql select madlib.version();\n",
+ "#%sql select version();"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "# 1. Create vertex and edge tables"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 4,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "Done.\n",
+ "Done.\n",
+ "Done.\n",
+ "7 rows affected.\n",
+ "22 rows affected.\n",
+ "22 rows affected.\n"
+ ]
+ },
+ {
+ "data": {
+ "text/html": [
+ "<table>\n",
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+ " <th>src</th>\n",
+ " <th>dest</th>\n",
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+ " <tr>\n",
+ " <td>0</td>\n",
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+ " <td>3</td>\n",
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+ " <td>6</td>\n",
+ " <td>3</td>\n",
+ " <td>1</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <td>6</td>\n",
+ " <td>3</td>\n",
+ " <td>2</td>\n",
+ " </tr>\n",
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+ ]
+ },
+ "execution_count": 4,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "%%sql \n",
+ "DROP TABLE IF EXISTS vertex, edge;\n",
+ "\n",
+ "CREATE TABLE vertex(\n",
+ " id INTEGER\n",
+ " );\n",
+ "\n",
+ "CREATE TABLE edge(\n",
+ " src INTEGER,\n",
+ " dest INTEGER,\n",
+ " user_id INTEGER\n",
+ " );\n",
+ "\n",
+ "INSERT INTO vertex VALUES\n",
+ "(0),\n",
+ "(1),\n",
+ "(2),\n",
+ "(3),\n",
+ "(4),\n",
+ "(5),\n",
+ "(6);\n",
+ "\n",
+ "INSERT INTO edge VALUES\n",
+ "(0, 1, 1),\n",
+ "(0, 2, 1),\n",
+ "(0, 4, 1),\n",
+ "(1, 2, 1),\n",
+ "(1, 3, 1),\n",
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+ "(2, 3, 2),\n",
+ "(3, 0, 2),\n",
+ "(4, 0, 2),\n",
+ "(5, 6, 2),\n",
+ "(6, 3, 2);\n",
+ "\n",
+ "SELECT * from edge ORDER BY src;"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "# 2. Calculate the PageRank"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 17,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "Done.\n",
+ "1 rows affected.\n",
+ "7 rows affected.\n"
+ ]
+ },
+ {
+ "data": {
+ "text/html": [
+ "<table>\n",
+ " <tr>\n",
+ " <th>id</th>\n",
+ " <th>pagerank</th>\n",
+ " </tr>\n",
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+ " <td>0</td>\n",
+ " <td>0.287537493412</td>\n",
+ " </tr>\n",
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+ " <td>3</td>\n",
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+ "</table>"
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+ ]
+ },
+ "execution_count": 17,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "%%sql\n",
+ "DROP TABLE IF EXISTS pagerank_out, pagerank_out_summary;\n",
+ "\n",
+ "SELECT madlib.pagerank(\n",
+ " 'vertex', -- Vertex table\n",
+ " 'id', -- Vertix id column\n",
+ " 'edge', -- Edge table\n",
+ " 'src=src, dest=dest', -- Comma delimted string of edge arguments\n",
+ " 'pagerank_out'); -- Output table of PageRank\n",
+ "\n",
+ "SELECT * FROM pagerank_out ORDER BY pagerank DESC;"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "Look at the summary table:"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 18,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "1 rows affected.\n"
+ ]
+ },
+ {
+ "data": {
+ "text/html": [
+ "<table>\n",
+ " <tr>\n",
+ " <th>__iterations__</th>\n",
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+ " <td>16</td>\n",
+ " </tr>\n",
+ "</table>"
+ ],
+ "text/plain": [
+ "[(16,)]"
+ ]
+ },
+ "execution_count": 18,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "%%sql\n",
+ "SELECT * FROM pagerank_out_summary;"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "Now run PageRank with a damping factor of 0.5 which results in different final values:"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 21,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "Done.\n",
+ "1 rows affected.\n",
+ "7 rows affected.\n"
+ ]
+ },
+ {
+ "data": {
+ "text/html": [
+ "<table>\n",
+ " <tr>\n",
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+ " </tr>\n",
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+ " <td>4</td>\n",
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+ " </tr>\n",
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+ " <td>1</td>\n",
+ " <td>0.10900929141</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <td>5</td>\n",
+ " <td>0.0884610399788</td>\n",
+ " </tr>\n",
+ "</table>"
+ ],
+ "text/plain": [
+ "[(0, 0.225477161441199),\n",
+ " (3, 0.199090328586664),\n",
+ " (2, 0.136261327206477),\n",
+ " (6, 0.132691559968224),\n",
+ " (4, 0.109009291409508),\n",
+ " (1, 0.109009291409508),\n",
+ " (5, 0.0884610399788161)]"
+ ]
+ },
+ "execution_count": 21,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "%%sql\n",
+ "DROP TABLE IF EXISTS pagerank_out, pagerank_out_summary;\n",
+ "SELECT madlib.pagerank(\n",
+ " 'vertex', -- Vertex table\n",
+ " 'id', -- Vertix id column\n",
+ " 'edge', -- Edge table\n",
+ " 'src=src, dest=dest', -- Comma delimted string of edge arguments\n",
+ " 'pagerank_out', -- Output table of PageRank\n",
+ " 0.5); -- Damping factor\n",
+ "SELECT * FROM pagerank_out ORDER BY pagerank DESC;"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "# 3. Grouping"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "Now compute the PageRank distribution separately for each user using the grouping feature:"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 22,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "Done.\n",
+ "1 rows affected.\n",
+ "14 rows affected.\n"
+ ]
+ },
+ {
+ "data": {
+ "text/html": [
+ "<table>\n",
+ " <tr>\n",
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+ ]
+ },
+ "execution_count": 22,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "%%sql\n",
+ "DROP TABLE IF EXISTS pagerank_out, pagerank_out_summary;\n",
+ "\n",
+ "SELECT madlib.pagerank(\n",
+ " 'vertex', -- Vertex table\n",
+ " 'id', -- Vertix id column\n",
+ " 'edge', -- Edge table\n",
+ " 'src=src, dest=dest', -- Comma delimted string of edge arguments\n",
+ " 'pagerank_out', -- Output table of PageRank\n",
+ " NULL, -- Default damping factor (0.85)\n",
+ " NULL, -- Default max iters (100)\n",
+ " 0.00000001, -- Threshold\n",
+ " 'user_id'); -- Grouping column name\n",
+ "\n",
+ "SELECT * FROM pagerank_out ORDER BY user_id, pagerank DESC;"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 24,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "2 rows affected.\n"
+ ]
+ },
+ {
+ "data": {
+ "text/html": [
+ "<table>\n",
+ " <tr>\n",
+ " <th>user_id</th>\n",
+ " <th>__iterations__</th>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <td>1</td>\n",
+ " <td>27</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <td>2</td>\n",
+ " <td>31</td>\n",
+ " </tr>\n",
+ "</table>"
+ ],
+ "text/plain": [
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+ ]
+ },
+ "execution_count": 24,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "%%sql\n",
+ "SELECT * FROM pagerank_out_summary ORDER BY user_id;"
+ ]
+ }
+ ],
+ "metadata": {
+ "kernelspec": {
+ "display_name": "Python 2",
+ "language": "python",
+ "name": "python2"
+ },
+ "language_info": {
+ "codemirror_mode": {
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