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CAS BigData

  • Lecture code
  • OrientDB code
  • Neo4j code
  • Model for dcrxml imports to graphdb
  • NLP Code
  • Utils

NLP

Positive and Negative Sentiment Analysis (Classifying)

-- Wordlist Based ----
analyzed 22941 positive sentences of which 17362 were categorized correctly: 75.68109498278191%
analyzed 22936 negative sentences of which 9933 were categorized correctly: 43.307464248343216%

-- OpenNLP Maximum Entropy (identical training and test) ----
analyzed 22941 positive sentences of which 21616 were categorized correctly: 94.22431454600932%
analyzed 22936 negative sentences of which 21359 were categorized correctly: 93.12434600627834%

Classification of CH-Law-Documents

Automatically assign category based on keywords and legislation cites.

  • Data: decisions from BGer and BVGer
  • Training set: 15000 documents
  • Test set: 16474 documents
analyzed 16474 documents of which 14784 were categorized correctly: 89.74141070778197%

Named-entity recognition (NER)

  • NER using the OpenNLP en-ner-person.bin model
  • Sentence Detection using the OpenNLP en-sent.bin model
  • Tokenized using the OpenNLP en-token.bin model
  • Class: NamedEntityRecognizer
  • Test data: Section 1976–84: Founding and incorporation on Apple Inc. Wikipedia Article
person: Steve Jobs
person: Steve Wozniak
person: Ronald Wayne
person: Wozniak
person: RAM
person: Wayne
person: Mike Markkula

GraphDB

Neo4j

Neo4j Graph

OrientDB

OrientDB Graph

Apache Spark & Hadoop setup

Scala

  • Download scala 2.11.6 deb file
sudo dpkg -i scala-2.11.6.deb

version scala -version

Scala code runner version 2.11.6 -- Copyright 2002-2013, LAMP/EPFL

Apache Hadoop

sudo addgroup hadoop
sudo adduser --ingroup hadoop hduser
sudo adduser hduser sudo
  • download http://www.motorlogy.com/apache/hadoop/common/current/hadoop-2.7.0.tar.gz
  • extract
  • mv hadoop-2.7.0 /usr/local/hadoop

Apache Spark

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