Initial commit

.gitignore

+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+.idea/
\ No newline at end of file

api/Dockerfile

+FROM python:3.7.2-alpine3.9
+
+ENV PYTHONPATH /code
+
+RUN apk update && \
+    apk upgrade && \
+    apk add bash && \
+    apk add asciidoctor && \
+    apk add ruby-rdoc && \
+    gem install concurrent-ruby && \
+    gem install tilt
+
+
+COPY requirements.txt /code/api/requirements.txt
+RUN pip3.7 install -U pip && \
+    pip3.7 install -r /code/api/requirements.txt
+
+COPY . /code/api
+

api/adoc/browser_guide.adoc

+= Cypher: A data exploration of D-BAS
+
+== D-BAS
+
+image::https://dbas.cs.uni-duesseldorf.de/static/images/logo/black.svg?x=1549315407[width=200,float=right]
+
+https://dbas.cs.uni-duesseldorf.de[D-BAS] is a dialog-based argumentation system which presents its discussions within a graph structure.
+
+The discussion graph is stored internally in the form of tables.
+
+This presentation will convert the tabular representation of the data into a graph structure and explain suitable https://neo4j.com/developer/cypher-query-language/[Cypher] requests.
+
+== Connect to the D-BAS database
+:password: pass:a['<span value-key="password">FooBar</span>']
+:table: pass:a['<span value-key="table">textversions</span>']
+
+Since this tool is located in the same network as D-BAS, the containers **web** and **db** can be addressed.
+Therefore, queries can be sent directly to the D-BAS database.
+So that Neo4j can submit the requests to PostgreSQL, the plugins https://neo4j-contrib.github.io/neo4j-apoc-procedures/[APOC] and the https://jdbc.postgresql.org/[PostgreSQL JDBC Driver] are provided.
+
+The following example connects Neo4J to the D-BAS database **db**.
+
+Please enter the password of **db**:
+++++
+Password: <input style="display:inline;width:30%;" value-for="password" class="form-control" value="FooBar" size="40">
+Table: <input style="display:inline;width:30%;" value-for="table" class="form-control" value="textversions" size="40">
+++++
+
+[source, cypher,subs=attributes]
+----
+WITH 'jdbc:postgresql://db/discussion?user=postgres&password=' + {password} AS url
+CALL apoc.load.jdbc(url, {table})
+YIELD row
+RETURN row
+----
+
+== Creating the statement nodes
+:password: pass:a['<span value-key="password">FooBar</span>']
+
+
+++++
+Password: <input style="display:inline;width:30%;" value-for="password" class="form-control" value="FooBar" size="40">
+++++
+
+[source, cypher,subs=attributes]
+----
+WITH 'jdbc:postgresql://db/discussion?user=postgres&password=' + {password} AS url
+CALL apoc.load.jdbc(url, 'statements')
+YIELD row
+MERGE (a:Statement{uid:row.uid, is_position:row.is_position, is_disabled:row.is_disabled})
+RETURN a
+----
+
+== Filling the statement nodes with textversions
+:password: pass:a['<span value-key="password">FooBar</span>']
+
+
+++++
+Password: <input style="display:inline;width:30%;" value-for="password" class="form-control" value="FooBar" size="40">
+++++
+
+[source, cypher,subs=attributes]
+----
+WITH 'jdbc:postgresql://db/discussion?user=postgres&password=' + 'FooBar' AS url
+CALL apoc.load.jdbc(url, 'textversions')
+YIELD row
+MATCH (a:Statement{uid:row.statement_uid})
+WHERE NOT EXISTS(a.content)
+SET a += {content:row.content}
+RETURN a
+----
+
+== Creating the user nodes
+:password: pass:a['<span value-key="password">FooBar</span>']
+
+
+++++
+Password: <input style="display:inline;width:30%;" value-for="password" class="form-control" value="FooBar" size="40">
+++++
+
+[source, cypher,subs=attributes]
+----
+WITH 'jdbc:postgresql://db/discussion?user=postgres&password=' + {password} AS url
+CALL apoc.load.jdbc(url, 'users')
+YIELD row
+MERGE (a:User{uid:row.uid, public_nickname:row.public_nickname})
+RETURN a
+----
+
+== Create relation between Users and Statements
+:password: pass:a['<span value-key="password">FooBar</span>']
+
+
+++++
+Password: <input style="display:inline;width:30%;" value-for="password" class="form-control" value="FooBar" size="40">
+++++
+
+[source, cypher,subs=attributes]
+----
+WITH 'jdbc:postgresql://db/discussion?user=postgres&password=' + {password} AS url
+CALL apoc.load.jdbc(url, 'textversions')
+YIELD row
+MATCH (a:User), (b:Statement)
+WHERE a.uid = row.author_uid AND b.uid = row.statement_uid
+MERGE (a)-[r:HAS_WRITTEN]->(b)
+RETURN a, b, r
+----
+
+== Create issue nodes
+:password: pass:a['<span value-key="password">FooBar</span>']
+
+
+++++
+Password: <input style="display:inline;width:30%;" value-for="password" class="form-control" value="FooBar" size="40">
+++++
+
+[source, cypher,subs=attributes]
+----
+WITH 'jdbc:postgresql://db/discussion?user=postgres&password=' + 'FooBar' AS url
+CALL apoc.load.jdbc(url, 'issues')
+YIELD row
+MERGE (a:Issue{uid:row.uid, title:row.title})
+RETURN a
+----
+
+== Connect statements with issues
+:password: pass:a['<span value-key="password">FooBar</span>']
+
+
+++++
+Password: <input style="display:inline;width:30%;" value-for="password" class="form-control" value="FooBar" size="40">
+++++
+
+[source, cypher,subs=attributes]
+----
+WITH 'jdbc:postgresql://db/discussion?user=postgres&password=' + 'FooBar' AS url
+CALL apoc.load.jdbc(url, 'statement_to_issue')
+YIELD row
+MATCH (a:Statement{uid:row.statement_uid}), (b:Issue{uid:row.issue_uid})
+MERGE (a)-[r:WRITTEN_IN]->(b)
+RETURN a,b,r
+----
+
+== Every User who has written a Position likes it
+:max_rating: pass:a['<span value-key="max_rating">2</span>']
+
+
+++++
+Rating between 0 and : <input style="display:inline;width:30%;" value-for="max_rating" class="form-control" value="2" size="40">
+++++
+
+[source, cypher,subs=attributes]
+----
+MATCH (a:User)-[:HAS_WRITTEN]->(b:Statement{is_position:True})
+MERGE (a)-[r:LIKES{rating:toInt({max_rating})}]->(b)
+RETURN a, b, r
+----
+
+== Every User who has written none gets a random rating for a Position
+:max_rating: pass:a['<span value-key="max_rating">2</span>']
+
+
+++++
+Rating between 0 and : <input style="display:inline;width:30%;" value-for="max_rating" class="form-control" value="2" size="40">
+++++
+
+[source, cypher,subs=attributes]
+----
+MATCH (a:User)
+WHERE NOT EXISTS((a)-[:LIKES]->())
+MATCH (b:Statement)
+WHERE b.is_position
+MERGE (a)-[:LIKES{rating:round(rand()*toInt({max_rating}))}]->(b)
+----
+
+== Delete every Rating with 0.0
+
+[source, cypher,subs=attributes]
+----
+MATCH ()-[r:LIKES{rating:0.0}]->()
+DETACH DELETE r
+----
+
+== Get sub-graph
+:max_number: pass:a['<span value-key="max_number">10</span>']
+
+
+++++
+Uid between 0 and : <input style="display:inline;width:30%;" value-for="max_number" class="form-control" value="10" size="40">
+++++
+
+[source, cypher,subs=attributes]
+----
+MATCH (a:User), (b:Statement{is_position:True})
+WHERE a.uid in range(0, toInt({max_number}))
+RETURN a,b
+----
+
+== Get k-nearest-neighbours with Pearson-Correlation
+:k_neighbors: pass:a['<span value-key="k_neighbors">5</span>']
+:user: pass:a['<span value-key="user">Björn</span>']
+
+
+++++
+Find top <input style="display:inline;width:30%;" value-for="k_neighbors" class="form-control" value="5" size="40">-neighbors for <input
+style="display:inline;width:30%;" value-for="user" class="form-control" value="Björn" size="40">
+++++
+
+[source, cypher,subs=attributes]
+----
+MATCH (p1:User {public_nickname: {user}})-[l:LIKES]->(statement)
+WITH p1, algo.similarity.asVector(statement, l.rating) AS p1Vector
+
+MATCH (p2:User)-[l:LIKES]->(statement) WHERE p2 <> p1
+WITH p1, p2, p1Vector, algo.similarity.asVector(statement, l.rating) AS p2Vector
+RETURN p1.public_nickname AS from,
+       p2.public_nickname AS to,
+       algo.similarity.pearson(p1Vector, p2Vector, {vectorType: "maps"}) AS similarity
+ORDER BY similarity DESC
+LIMIT toInt({k_neighbors})
+----
+
+== Get two User and their connection
+:user_a: pass:a['<span value-key="user_a">Björn</span>']
+:user_b: pass:a['<span value-key="user_b">Christian</span>']
+
+
+++++
+User A: <input style="display:inline;width:30%;" value-for="user_a" class="form-control" value="Björn" size="40"> User B: <input
+style="display:inline;width:30%;" value-for="user_b" class="form-control" value="Christian" size="40">
+++++
+
+[source, cypher,subs=attributes]
+----
+match (a:User{public_nickname:{user_a}}), (b:User{public_nickname:{user_b}}), (s:Statement)
+WHERE (a)-[:LIKES]->(s) or (b)-[:LIKES]->(s)
+return a,b,s
+----
+
+== Get Top-N Prediction for User with Pearson-Similarity + Weighted-Average + kNN
+:k_neighbors: pass:a['<span value-key="k_neighbors">5</span>']
+:top_n: pass:a['<span value-key="top_n">5</span>']
+:user: pass:a['<span value-key="user">Björn</span>']
+
+
+++++
+Find Top-<input style="display:inline;width:30%;" value-for="top_n" class="form-control" value="5" size="40"> Predictions for <input
+style="display:inline;width:30%;" value-for="user" class="form-control" value="Björn" size="40"> in the <input style="display:inline;width:30%;"
+value-for="k_neighbors" class="form-control" value="5" size="40">-NN
+++++
+
+[source, cypher,subs=attributes]
+----
+MATCH (p1:User {public_nickname: {user}})-[l:LIKES]->(statement)
+WITH p1, algo.similarity.asVector(statement, l.rating) AS p1Vector
+
+MATCH (p2:User)-[l:LIKES]->(statement) WHERE p2 <> p1
+WITH p1, p2, p1Vector, algo.similarity.asVector(statement, l.rating) AS p2Vector
+WITH p1 AS from, p2 AS to, algo.similarity.pearson(p1Vector, p2Vector, {vectorType: "maps"}) AS similarity
+ORDER BY similarity DESC limit toInt({k_neighbors})
+WHERE similarity <> 0.0
+
+MATCH (to)-[r:LIKES]->(s:Statement) WHERE NOT EXISTS((from)-[:LIKES]->(s))
+return from , to, s, sum(similarity * r.rating)/sum(abs(similarity)) as prediction
+ORDER BY prediction DESC LIMIT toInt({top_n})
+----
\ No newline at end of file

api/create_html.sh

+#!/usr/bin/env bash
+
+asciidoctor $1 -T ./templates -a leveloffset=+1 -o $2
\ No newline at end of file

api/html/browser_guide.html

+<style type="text/css" media="screen">
+/*
+.nodes-image {
+	margin:-100;
+}
+*/	
+@import url("//maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css");
+
+.imageblock .content img, .image img {max-width: 900px;max-height: 300px;}
+.deck h3, .deck h4 {display: block !important;margin-bottom:8px;margin-top:5px;}
+.listingblock {margin:8px;}
+.pull-bottom {position:relative;bottom:1em;}
+.admonitionblock td.icon [class^="fa icon-"]{font-size:2.5em;text-shadow:1px 1px 2px rgba(0,0,0,.5);cursor:default}
+.admonitionblock td.icon .icon-note:before{content:"\f05a";color:#19407c}
+.admonitionblock td.icon .icon-tip:before{content:"\f0eb";text-shadow:1px 1px 2px rgba(155,155,0,.8);color:#111}
+.admonitionblock td.icon .icon-warning:before{content:"\f071";color:#bf6900}
+.admonitionblock td.icon .icon-caution:before{content:"\f06d";color:#bf3400}
+.admonitionblock td.icon .icon-important:before{content:"\f06a";color:#bf0000}
+.admonitionblock.note.speaker { display:none; }
+</style>
+<style type="text/css" media="screen">
+/* #editor.maximize-editor .CodeMirror-code { font-size:24px; line-height:26px; } */
+</style>
+<article class="guide" ng-controller="AdLibDataController">
+  <carousel class="deck container-fluid">
+    <!--slide class="row-fluid">
+      <div class="col-sm-3">
+        <h3>Cypher: A data exploration of D-BAS</h3>
+        <p class="lead">Information</p>
+			<!dl>
+				
+				
+				
+				
+				
+			</dl>
+		</div>
+      <div class="col-sm-9">
+        <figure>
+          <img style="width:300px" src=""/>
+        </figure>
+      </div>
+    </slide-->
+    
+
+
+   <h4>Cypher: A data exploration of D-BAS</h4>
+   
+
+
+<slide class="row-fluid">
+  <div class="col-sm-12">
+    <h3>D-BAS</h3>
+    <br/>
+    <div>
+      <div class="imageblock" style="float: right;">
+<div class="content">
+<img src="https://dbas.cs.uni-duesseldorf.de/static/images/logo/black.svg?x=1549315407" alt="black" width="200">
+</div>
+</div>
+<div class="paragraph">
+<p><a href="https://dbas.cs.uni-duesseldorf.de">D-BAS</a> is a dialog-based argumentation system which presents its discussions within a graph structure.</p>
+</div>
+<div class="paragraph">
+<p>The discussion graph is stored internally in the form of tables.</p>
+</div>
+<div class="paragraph">
+<p>This presentation will convert the tabular representation of the data into a graph structure and explain suitable <a href="https://neo4j.com/developer/cypher-query-language/">Cypher</a> requests.</p>
+</div>
+	</div>
+  </div>
+</slide>
+
+
+
+<slide class="row-fluid">
+  <div class="col-sm-12">
+    <h3>Connect to the D-BAS database</h3>
+    <br/>
+    <div>
+      <div class="paragraph">
+<p>Since this tool is located in the same network as D-BAS, the containers <strong>web</strong> and <strong>db</strong> can be addressed.
+Therefore, queries can be sent directly to the D-BAS database.
+So that Neo4j can submit the requests to PostgreSQL, the plugins <a href="https://neo4j-contrib.github.io/neo4j-apoc-procedures/">APOC</a> and the <a href="https://jdbc.postgresql.org/">PostgreSQL JDBC Driver</a> are provided.</p>
+</div>
+<div class="paragraph">
+<p>The following example connects Neo4J to the D-BAS database <strong>db</strong>.</p>
+</div>
+<div class="paragraph">
+<p>Please enter the password of <strong>db</strong>:</p>
+</div>
+Password: <input style="display:inline;width:30%;" value-for="password" class="form-control" value="FooBar" size="40">
+Table: <input style="display:inline;width:30%;" value-for="table" class="form-control" value="textversions" size="40">
+<div class="listingblock">
+<div class="content">
+<pre mode="cypher"  class="highlight pre-scrollable programlisting cm-s-neo code runnable standalone-example ng-binding" data-lang="cypher" lang="cypher"><!--code class="cypher language-cypher"-->WITH 'jdbc:postgresql://db/discussion?user=postgres&password=' + '<span value-key="password">FooBar</span>' AS url
+CALL apoc.load.jdbc(url, '<span value-key="table">textversions</span>')
+YIELD row
+RETURN row<!--/code--></pre>
+</div>
+</div>
+	</div>
+  </div>
+</slide>
+
+
+
+<slide class="row-fluid">
+  <div class="col-sm-12">
+    <h3>Creating the statement nodes</h3>
+    <br/>
+    <div>
+      Password: <input style="display:inline;width:30%;" value-for="password" class="form-control" value="FooBar" size="40">
+<div class="listingblock">
+<div class="content">
+<pre mode="cypher"  class="highlight pre-scrollable programlisting cm-s-neo code runnable standalone-example ng-binding" data-lang="cypher" lang="cypher"><!--code class="cypher language-cypher"-->WITH 'jdbc:postgresql://db/discussion?user=postgres&password=' + '<span value-key="password">FooBar</span>' AS url
+CALL apoc.load.jdbc(url, 'statements')
+YIELD row
+MERGE (a:Statement{uid:row.uid, is_position:row.is_position, is_disabled:row.is_disabled})
+RETURN a<!--/code--></pre>
+</div>
+</div>
+	</div>
+  </div>
+</slide>
+
+
+
+<slide class="row-fluid">
+  <div class="col-sm-12">
+    <h3>Filling the statement nodes with textversions</h3>
+    <br/>
+    <div>
+      Password: <input style="display:inline;width:30%;" value-for="password" class="form-control" value="FooBar" size="40">
+<div class="listingblock">
+<div class="content">
+<pre mode="cypher"  class="highlight pre-scrollable programlisting cm-s-neo code runnable standalone-example ng-binding" data-lang="cypher" lang="cypher"><!--code class="cypher language-cypher"-->WITH 'jdbc:postgresql://db/discussion?user=postgres&password=' + 'FooBar' AS url
+CALL apoc.load.jdbc(url, 'textversions')
+YIELD row
+MATCH (a:Statement{uid:row.statement_uid})
+WHERE NOT EXISTS(a.content)
+SET a += {content:row.content}
+RETURN a<!--/code--></pre>
+</div>
+</div>
+	</div>
+  </div>
+</slide>
+
+
+
+<slide class="row-fluid">
+  <div class="col-sm-12">
+    <h3>Creating the user nodes</h3>
+    <br/>
+    <div>
+      Password: <input style="display:inline;width:30%;" value-for="password" class="form-control" value="FooBar" size="40">
+<div class="listingblock">
+<div class="content">
+<pre mode="cypher"  class="highlight pre-scrollable programlisting cm-s-neo code runnable standalone-example ng-binding" data-lang="cypher" lang="cypher"><!--code class="cypher language-cypher"-->WITH 'jdbc:postgresql://db/discussion?user=postgres&password=' + '<span value-key="password">FooBar</span>' AS url
+CALL apoc.load.jdbc(url, 'users')
+YIELD row
+MERGE (a:User{uid:row.uid, public_nickname:row.public_nickname})
+RETURN a<!--/code--></pre>
+</div>
+</div>
+	</div>
+  </div>
+</slide>
+
+
+
+<slide class="row-fluid">
+  <div class="col-sm-12">
+    <h3>Create relation between Users and Statements</h3>
+    <br/>
+    <div>
+      Password: <input style="display:inline;width:30%;" value-for="password" class="form-control" value="FooBar" size="40">
+<div class="listingblock">
+<div class="content">
+<pre mode="cypher"  class="highlight pre-scrollable programlisting cm-s-neo code runnable standalone-example ng-binding" data-lang="cypher" lang="cypher"><!--code class="cypher language-cypher"-->WITH 'jdbc:postgresql://db/discussion?user=postgres&password=' + '<span value-key="password">FooBar</span>' AS url
+CALL apoc.load.jdbc(url, 'textversions')
+YIELD row
+MATCH (a:User), (b:Statement)
+WHERE a.uid = row.author_uid AND b.uid = row.statement_uid
+MERGE (a)-[r:HAS_WRITTEN]->(b)
+RETURN a, b, r<!--/code--></pre>
+</div>
+</div>
+	</div>
+  </div>
+</slide>
+
+
+
+<slide class="row-fluid">
+  <div class="col-sm-12">
+    <h3>Create issue nodes</h3>
+    <br/>
+    <div>
+      Password: <input style="display:inline;width:30%;" value-for="password" class="form-control" value="FooBar" size="40">
+<div class="listingblock">
+<div class="content">
+<pre mode="cypher"  class="highlight pre-scrollable programlisting cm-s-neo code runnable standalone-example ng-binding" data-lang="cypher" lang="cypher"><!--code class="cypher language-cypher"-->WITH 'jdbc:postgresql://db/discussion?user=postgres&password=' + 'FooBar' AS url
+CALL apoc.load.jdbc(url, 'issues')
+YIELD row
+MERGE (a:Issue{uid:row.uid, title:row.title})
+RETURN a<!--/code--></pre>
+</div>
+</div>
+	</div>
+  </div>
+</slide>
+
+
+
+<slide class="row-fluid">
+  <div class="col-sm-12">
+    <h3>Connect statements with issues</h3>
+    <br/>
+    <div>
+      Password: <input style="display:inline;width:30%;" value-for="password" class="form-control" value="FooBar" size="40">
+<div class="listingblock">
+<div class="content">
+<pre mode="cypher"  class="highlight pre-scrollable programlisting cm-s-neo code runnable standalone-example ng-binding" data-lang="cypher" lang="cypher"><!--code class="cypher language-cypher"-->WITH 'jdbc:postgresql://db/discussion?user=postgres&password=' + 'FooBar' AS url
+CALL apoc.load.jdbc(url, 'statement_to_issue')
+YIELD row
+MATCH (a:Statement{uid:row.statement_uid}), (b:Issue{uid:row.issue_uid})
+MERGE (a)-[r:WRITTEN_IN]->(b)
+RETURN a,b,r<!--/code--></pre>
+</div>
+</div>
+	</div>
+  </div>
+</slide>
+
+
+
+<slide class="row-fluid">
+  <div class="col-sm-12">
+    <h3>Every User who has written a Position likes it</h3>
+    <br/>
+    <div>
+      Rating between 0 and : <input style="display:inline;width:30%;" value-for="max_rating" class="form-control" value="2" size="40">
+<div class="listingblock">
+<div class="content">
+<pre mode="cypher"  class="highlight pre-scrollable programlisting cm-s-neo code runnable standalone-example ng-binding" data-lang="cypher" lang="cypher"><!--code class="cypher language-cypher"-->MATCH (a:User)-[:HAS_WRITTEN]->(b:Statement{is_position:True})
+MERGE (a)-[r:LIKES{rating:toInt('<span value-key="max_rating">2</span>')}]->(b)
+RETURN a, b, r<!--/code--></pre>
+</div>
+</div>
+	</div>
+  </div>
+</slide>
+
+
+
+<slide class="row-fluid">
+  <div class="col-sm-12">
+    <h3>Every User who has written none gets a random rating for a Position</h3>
+    <br/>
+    <div>
+      Rating between 0 and : <input style="display:inline;width:30%;" value-for="max_rating" class="form-control" value="2" size="40">
+<div class="listingblock">
+<div class="content">
+<pre mode="cypher"  class="highlight pre-scrollable programlisting cm-s-neo code runnable standalone-example ng-binding" data-lang="cypher" lang="cypher"><!--code class="cypher language-cypher"-->MATCH (a:User)
+WHERE NOT EXISTS((a)-[:LIKES]->())
+MATCH (b:Statement)
+WHERE b.is_position
+MERGE (a)-[:LIKES{rating:round(rand()*toInt('<span value-key="max_rating">2</span>'))}]->(b)<!--/code--></pre>
+</div>
+</div>
+	</div>
+  </div>
+</slide>
+
+
+
+<slide class="row-fluid">
+  <div class="col-sm-12">
+    <h3>Delete every Rating with 0.0</h3>
+    <br/>
+    <div>
+      <div class="listingblock">
+<div class="content">
+<pre mode="cypher"  class="highlight pre-scrollable programlisting cm-s-neo code runnable standalone-example ng-binding" data-lang="cypher" lang="cypher"><!--code class="cypher language-cypher"-->MATCH ()-[r:LIKES{rating:0.0}]->()
+DETACH DELETE r<!--/code--></pre>
+</div>
+</div>
+	</div>
+  </div>
+</slide>
+
+
+
+<slide class="row-fluid">
+  <div class="col-sm-12">
+    <h3>Get sub-graph</h3>
+    <br/>
+    <div>
+      Uid between 0 and : <input style="display:inline;width:30%;" value-for="max_number" class="form-control" value="10" size="40">
+<div class="listingblock">
+<div class="content">
+<pre mode="cypher"  class="highlight pre-scrollable programlisting cm-s-neo code runnable standalone-example ng-binding" data-lang="cypher" lang="cypher"><!--code class="cypher language-cypher"-->MATCH (a:User), (b:Statement{is_position:True})
+WHERE a.uid in range(0, toInt('<span value-key="max_number">10</span>'))
+RETURN a,b<!--/code--></pre>
+</div>
+</div>
+	</div>
+  </div>
+</slide>
+
+
+
+<slide class="row-fluid">
+  <div class="col-sm-12">
+    <h3>Get k-nearest-neighbours with Pearson-Correlation</h3>
+    <br/>
+    <div>
+      Find top <input style="display:inline;width:30%;" value-for="k_neighbors" class="form-control" value="5" size="40">-neighbors for <input
+style="display:inline;width:30%;" value-for="user" class="form-control" value="Björn" size="40">
+<div class="listingblock">
+<div class="content">
+<pre mode="cypher"  class="highlight pre-scrollable programlisting cm-s-neo code runnable standalone-example ng-binding" data-lang="cypher" lang="cypher"><!--code class="cypher language-cypher"-->MATCH (p1:User {public_nickname: '<span value-key="user">Björn</span>'})-[l:LIKES]->(statement)
+WITH p1, algo.similarity.asVector(statement, l.rating) AS p1Vector
+
+MATCH (p2:User)-[l:LIKES]->(statement) WHERE p2 <> p1
+WITH p1, p2, p1Vector, algo.similarity.asVector(statement, l.rating) AS p2Vector
+RETURN p1.public_nickname AS from,
+       p2.public_nickname AS to,
+       algo.similarity.pearson(p1Vector, p2Vector, {vectorType: "maps"}) AS similarity
+ORDER BY similarity DESC
+LIMIT toInt('<span value-key="k_neighbors">5</span>')<!--/code--></pre>
+</div>
+</div>
+	</div>
+  </div>
+</slide>
+
+
+
+<slide class="row-fluid">
+  <div class="col-sm-12">
+    <h3>Get two User and their connection</h3>
+    <br/>
+    <div>
+      User A: <input style="display:inline;width:30%;" value-for="user_a" class="form-control" value="Björn" size="40"> User B: <input
+style="display:inline;width:30%;" value-for="user_b" class="form-control" value="Christian" size="40">
+<div class="listingblock">
+<div class="content">
+<pre mode="cypher"  class="highlight pre-scrollable programlisting cm-s-neo code runnable standalone-example ng-binding" data-lang="cypher" lang="cypher"><!--code class="cypher language-cypher"-->match (a:User{public_nickname:'<span value-key="user_a">Björn</span>'}), (b:User{public_nickname:'<span value-key="user_b">Christian</span>'}), (s:Statement)
+WHERE (a)-[:LIKES]->(s) or (b)-[:LIKES]->(s)
+return a,b,s<!--/code--></pre>
+</div>
+</div>
+	</div>
+  </div>
+</slide>
+
+
+
+<slide class="row-fluid">
+  <div class="col-sm-12">
+    <h3>Get Top-N Prediction for User with Pearson-Similarity + Weighted-Average + kNN</h3>
+    <br/>
+    <div>
+      Find Top-<input style="display:inline;width:30%;" value-for="top_n" class="form-control" value="5" size="40"> Predictions for <input
+style="display:inline;width:30%;" value-for="user" class="form-control" value="Björn" size="40"> in the <input style="display:inline;width:30%;"
+value-for="k_neighbors" class="form-control" value="5" size="40">-NN
+<div class="listingblock">
+<div class="content">
+<pre mode="cypher"  class="highlight pre-scrollable programlisting cm-s-neo code runnable standalone-example ng-binding" data-lang="cypher" lang="cypher"><!--code class="cypher language-cypher"-->MATCH (p1:User {public_nickname: '<span value-key="user">Björn</span>'})-[l:LIKES]->(statement)
+WITH p1, algo.similarity.asVector(statement, l.rating) AS p1Vector
+
+MATCH (p2:User)-[l:LIKES]->(statement) WHERE p2 <> p1
+WITH p1, p2, p1Vector, algo.similarity.asVector(statement, l.rating) AS p2Vector
+WITH p1 AS from, p2 AS to, algo.similarity.pearson(p1Vector, p2Vector, {vectorType: "maps"}) AS similarity
+ORDER BY similarity DESC limit toInt('<span value-key="k_neighbors">5</span>')
+WHERE similarity <> 0.0
+
+MATCH (to)-[r:LIKES]->(s:Statement) WHERE NOT EXISTS((from)-[:LIKES]->(s))
+return from , to, s, sum(similarity * r.rating)/sum(abs(similarity)) as prediction
+ORDER BY prediction DESC LIMIT toInt('<span value-key="top_n">5</span>')<!--/code--></pre>
+</div>
+</div>
+	</div>
+  </div>
+</slide>
+  </carousel>
+</article>
\ No newline at end of file

api/requirements.txt

+Flask==0.10.1
+flask-cors==3.0.7
\ No newline at end of file

api/server.py

+from flask import Flask, render_template
+from flask_cors import CORS
+
+app = Flask(__name__, template_folder='.')
+CORS(app)
+
+
+@app.route('/<file>')
+def root(file):
+    return render_template('html/' + file)
+
+
+if __name__ == '__main__':
+    app.run(debug=True, host="0.0.0.0", port=5000)

api/templates/block_admonition.html.erb

+<%#encoding:UTF-8%><div<%= @id && %( id="#{@id}") %> class="<%= ['admonitionblock',(attr :name),role].compact * ' ' %>">
+<table>
+<tr>
+<td class="icon"><%
+if @document.attr? :icons, 'font' %>
+<i class="fa icon-<%= attr 'name' %>" title="<%= @caption %>"></i><%
+elsif @document.attr? :icons %>
+<img src="<%= icon_uri(attr :name) %>" alt="<%= @caption %>"><%
+else %>
+<div class="title label"><%= @caption %></div><%
+end %>
+</td>
+<td class="content"><%
+if title? %>
+<div class="title label"><%= title %></div><%
+end %>
+<%= content %>
+</td>
+</tr>
+</table>
+</div>

api/templates/block_audio.html.erb

+<%#encoding:UTF-8%><div<%= @id && %( id="#{@id}") %> class="<%= ['audioblock',@style,role].compact * ' ' %>"><%
+if title? %>
+<div class="title"><%= captioned_title %></div><%
+end %>
+<div class="content">
+<audio src="<%= media_uri(attr :target) %>"<%
+if option? :autoplay %> autoplay<% end
+unless option? :nocontrols %> controls<% end
+if option? :loop %> loop<% end %>>
+Your browser does not support the audio tag.
+</audio>
+</div>
+</div>

api/templates/block_colist.html.erb

+<%#encoding:UTF-8%><div<%= @id && %( id="#{@id}") %> class="<%= ['colist',@style,role].compact * ' ' %>"><%
+if title? %>
+<div class="title"><%= title %></div><%
+end
+if @document.attr? :icons
+  font_icons = @document.attr? :icons, 'font' %>
+<table><%
+  items.each_with_index do |item, i|
+    num = i + 1 %>
+<tr>
+<td><%
+    if font_icons %><i class="conum" data-value="<%= num %>"></i><b><%= num %></b><%
+    else %><img src="<%= icon_uri %(callouts/#{num}) %>" alt="<%= num %>"><%
+    end %></td>
+<td><%= item.text %></td>
+</tr><%
+  end %>
+</table><%
+else %>
+<ol><%
+  items.each do |item| %>
+<li>
+<p><%= item.text %></p>
+</li><%
+  end %>
+</ol><%
+end %>
+</div>

api/templates/block_dlist.html.erb

+<%#encoding:UTF-8%><%
+case @style
+when 'qanda'
+%><div<%= @id && %( id="#{@id}") %> class="<%= ['qlist','qanda',role].compact * ' ' %>"><%
+  if title? %>
+<div class="title"><%= title %></div><%
+  end %>
+<ol><%
+  items.each do |questions, answer| %>
+<li><%
+    [*questions].each do |question| %>
+<p><em><%= question.text %></em></p><%
+    end
+    unless answer.nil?
+      if answer.text? %>
+<p><%= answer.text %></p><%
+      end
+      if answer.blocks? %>
+<%= answer.content %><%
+      end
+    end %>
+</li><%
+  end %>
+</ol>
+</div><%
+when 'horizontal'
+%><div<%= @id && %( id="#{@id}") %> class="<%= ['hdlist',role].compact * ' ' %>"><%
+  if title? %>
+<div class="title"><%= title %></div><%
+  end %>
+<table><%
+  if (attr? :labelwidth) || (attr? :itemwidth) %>
+<colgroup>
+<col<%= (attr? :labelwidth) ? %( style="width: #{(attr :labelwidth).chomp '%'}%;") : nil %>>
+<col<%= (attr? :itemwidth) ? %( style="width: #{(attr :itemwidth).chomp '%'}%;") : nil %>>
+</colgroup><%
+  end
+  items.each do |terms, dd| %>
+<tr>
+<td class="hdlist1<%= (option? :strong) ? ' strong' : nil %>"><%
+    terms = [*terms]
+    last_term = terms.last
+    terms.each do |dt| %>
+<%= dt.text %><%
+      if dt != last_term %>
+<br><%
+      end
+    end %>
+</td>
+<td class="hdlist2"><%
+    unless dd.nil?
+      if dd.text? %>
+<p><%= dd.text %></p><%
+      end
+      if dd.blocks? %>
+<%= dd.content %><%
+      end
+    end %>
+</td>
+</tr><%
+  end %>
+</table>
+</div><%
+else
+%><div<%= @id && %( id="#{@id}") %> class="<%= ['dlist',@style,role].compact * ' ' %>"><%
+  if title? %>
+<div class="title"><%= title %></div><%
+  end %>
+<dl><%
+  items.each do |terms, dd|
+    [*terms].each do |dt| %>
+<dt<%= !@style ? ' class="hdlist1"' : nil %>><%= dt.text %></dt><%
+    end
+    unless dd.nil? %>
+<dd><%
+      if dd.text? %>
+<p><%= dd.text %></p><%
+      end
+      if dd.blocks? %>
+<%= dd.content %><%
+      end %>
+</dd><%
+    end
+  end %>
+</dl>
+</div><%
+end %>

api/templates/block_example.html.erb

+<%#encoding:UTF-8%><div<%= @id && %( id="#{@id}") %> class="<%= ['exampleblock',role].compact * ' ' %>"><%
+if title? %>
+<div class="title"><%= captioned_title %></div><%
+end %>
+<div class="content">
+<%= content %>
+</div>
+</div>

api/templates/block_floating_title.html.erb

+<%#encoding:UTF-8%><%= %(<h#{@level + 1}#{@id && %[ id="#{@id}"]} class="#{[@style, role].compact * ' '}">#{title}</h#{@level + 1}>) %>

api/templates/block_image.html.erb

+<%#encoding:UTF-8%><div<%= @id && %( id="#{@id}") %> class="<%= ['imageblock',@style,role].compact * ' ' %>"<%
+if (attr? :align) || (attr? :float)
+%> style="<%= [("text-align: #{attr :align};" if attr? :align),("float: #{attr :float};" if attr? :float)].compact * ' ' %>"<%
+end %>>
+<div class="content"><%
+if attr? :link %>
+<a class="image" href="<%= attr :link %>"><img src="<%= image_uri(attr :target) %>" alt="<%= attr :alt %>"<%= (attr? :width) ? %( width="#{attr :width}") : nil %><%= (attr? :height) ? %( height="#{attr :height}") : nil %>></a><%
+else %>
+<img src="<%= image_uri(attr :target) %>" alt="<%= attr :alt %>"<%= (attr? :width) ? %( width="#{attr :width}") : nil %><%= (attr? :height) ? %( height="#{attr :height}") : nil %>><%
+end %>
+</div><%
+if title? %>
+<div class="title"><%= captioned_title %></div><%
+end %>
+</div>

api/templates/block_listing.html.erb

+<%#encoding:UTF-8%><div<%= @id && %( id="#{@id}") %> class="<%= ['listingblock',role].compact * ' ' %>"><%
+if title? %>
+<div class="title"><%= captioned_title %></div><%
+end %>
+<div class="content"><%
+nowrap = !(@document.attr? :prewrap) || (option? :nowrap)
+if @style == 'source'
+  language = attr :language
+  code_class = language ? [language, %(language-#{language})] : []
+  pre_class = ['highlight']
+  pre_lang = language
+  case attr 'source-highlighter'
+  when 'coderay'
+    pre_class = ['CodeRay']
+  when 'pygments'
+    pre_class = ['pygments','highlight']
+  when 'prettify'
+    pre_class = ['prettyprint']
+    pre_class << 'linenums' if attr? :linenums
+    pre_class << language if language
+    pre_class << %(language-#{language}) if language
+    code_class = []
+  when 'html-pipeline'
+    pre_lang = language
+    pre_class = code_class = []
+    nowrap = false
+  end
+  pre_class << "pre-scrollable"
+  pre_class << "programlisting"
+  pre_class << "cm-s-neo"
+  pre_class << "code"
+  pre_class << "runnable"
+  pre_class << "standalone-example"
+  pre_class << "ng-binding" 
+  pre_class << 'nowrap' if nowrap %>
+<pre mode="cypher" <%= pre_class.empty? ? nil : %( class="#{pre_class * ' '}") %><%= pre_lang && %( data-lang="#{pre_lang}") %><%= pre_lang && %( lang="#{pre_lang}") %>><!--code<%= code_class.empty? ? nil : %( class="#{code_class * ' '}") %>--><%= content %><!--/code--></pre><%
+else %>
+<pre<%= nowrap ? ' class="nowrap"' : nil %>><%= content %></pre><%
+end %>
+</div>
+</div>

api/templates/block_literal.html.erb

+<%#encoding:UTF-8%><div<%= @id && %( id="#{@id}") %> class="<%= ['literalblock',role].compact * ' ' %>"><%
+if title? %>
+<div class="title"><%= title %></div><%
+end %>
+<div class="content">
+<pre<%= !(@document.attr? :prewrap) || (option? :nowrap) ? ' class="nowrap"' : nil %>><%= content %></pre>
+</div>
+</div>

api/templates/block_math.html.erb

+<%#encoding:UTF-8%><div<%= @id && %( id="#{@id}") %> class="<%= ['mathblock',role].compact * ' ' %>"><%
+if title? %>
+<div class="title"><%= title %></div><%
+end %>
+<div class="content"><%
+open, close = Asciidoctor::BLOCK_MATH_DELIMITERS[@style.to_sym]
+equation = content.strip
+if (@subs.nil? || @subs.empty?) && !(attr? 'subs')
+  equation = sub_specialcharacters equation
+end
+unless (equation.start_with? open) && (equation.end_with? close)
+  equation = %(#{open}#{equation}#{close})
+end
+%>
+<%= %(#{equation}\n) %>
+</div>
+</div>

api/templates/block_olist.html.erb

+<%#encoding:UTF-8%><div<%= @id && %( id="#{@id}") %> class="<%= ['olist',@style,role].compact * ' ' %>"><%
+if title? %>
+<div class="title"><%= title %></div><%
+end %>
+<ol class="<%= @style %>"<%= (attr? :start) ? %( start="#{attr :start}") : nil %><%= (keyword = list_marker_keyword) && %( type="#{keyword}") %>><%
+items.each do |item| %>
+<li>
+<p><%= item.text %></p><%
+  if item.blocks? %>
+<%= item.content %><%
+  end %>
+</li><%
+end %>
+</ol>
+</div>

api/templates/block_open.html.erb

+<%#encoding:UTF-8%><%
+if @style == 'abstract'
+  if @parent == @document && @document.doctype == 'book'
+    puts 'asciidoctor: WARNING: abstract block cannot be used in a document without a title when doctype is book. Excluding block content.'
+  else
+%><div<%= @id && %( id="#{@id}") %> class="<%= ['quoteblock','abstract',role].compact * ' ' %>"><%
+    if title? %>
+<div class="title"><%= title %></div><%
+    end %>
+<blockquote>
+<%= content %>
+</blockquote>
+</div><%
+  end
+elsif @style == 'partintro' && (@level != 0 || @parent.context != :section || @document.doctype != 'book')
+  puts 'asciidoctor: ERROR: partintro block can only be used when doctype is book and it\'s a child of a book part. Excluding block content.'
+else
+%><div<%= @id && %( id="#{@id}") %> class="<%= ['openblock',(@style == 'open' ? nil : @style),role].compact * ' ' %>"><%
+  if title? %>
+<div class="title"><%= title %></div><%
+  end %>
+<div class="content">
+<%= content %>
+</div>
+</div><%
+end %>