Graphify
This is a Neo4j unmanaged extension used for document and text classification.
Compiled extension
The compiled extension is available from the bin directory.
Building the extension
-
To build it:
src/extension mvn assembly:assembly -DdescriptorId=jar-with-dependencies -
Copy
src/extension/target/graphify-1.0.0-jar-with-dependencies.jarto theplugins/directory of your Neo4j server. -
Configure Neo4j by adding a line to conf/neo4j-server.properties:
org.neo4j.server.thirdparty_jaxrs_classes=org.neo4j.nlp.ext=/service -
Start Neo4j server.
-
Query it over HTTP.
Using it
Get similar labels:
curl --user neo4j:neo4j http://localhost:7474/service/graphify/similar/{label}
Train the natural language recognition model on text about 'Document classification':
curl --user neo4j:neo4j -H "Content-Type: application/json" -d '{"label": ["Document classification"], "text": ["Documents may be classified according to their subjects or according to other attributes (such as document type, author, printing year etc.). In the rest of this article only subject classification is considered. There are two main philosophies of subject classification of documents: The content based approach and the request based approach."]}' http://localhost:7474/service/graphify/training
Classify an unlabeled text:
curl --user neo4j:neo4j -H "Content-Type: application/json" -d '{"text": "A document is a written or drawn representation of thoughts. Originating from the Latin Documentum meaning lesson - the verb means to teach, and is pronounced similarly, in the past it was usually used as a term for a written proof used as evidence."}' http://localhost:7474/service/graphify/classify
Get a list of the extracted semantic features matching a text:
curl --user neo4j:neo4j -H "Content-Type: application/json" -d '{"text": "A document is a written or drawn representation of thoughts. Originating from the Latin Documentum meaning lesson - the verb means to teach, and is pronounced similarly, in the past it was usually used as a term for a written proof used as evidence."}' http://localhost:7474/service/graphify/extractfeatures
Get a sorted list of labels that are most related to the label 'Document classification':
curl --user neo4j:neo4j http://localhost:7474/service/graphify/similar/Document%20classification
Example response:
{
"classes": [
{
"class": "Document",
"similarity": 0.19563160874988336
},
{
"class": "Intelligence",
"similarity": 0.1778887274627789
},
{
"class": "Machine learning",
"similarity": 0.14800216450227222
},
{
"class": "Data",
"similarity": 0.1467923282078174
},
{
"class": "Memory",
"similarity": 0.14600346713601134
}
]
}