Semantic Matching of Candidates’ profile with Job data from Linked-in

Semantic Matching of Candidates’ profile with Job data from Linked-inTing Xiao, Sarabpreet Dhillon

Demo12/3/2013

Quick Review- Interim Info

0Data Collection0Build Keyword Set0Build The Relationship Between the Job and Personal

profile on the Ontology0Compute the matching score based on the linkage0Result

Architecture

Linked-In Python API

Linked-In Python A

PI

Alchemy Python API

Jena Framework

Web Page

Json

Json

ttl

ttl

Data Collection

0Python LinkedIn Library0 https://github.com/ozgur/python-linkedin

0Profile.py0 Developer’s own profile is easy to extract0 Or use search API to find other person’s profile

0 Job_extraction.py0 According to the level of the Linked-In account, the query

gives different numbers of jobs’ information0 The result is sorted by the timestamp of posting

Data Collection

0Example of Profile(profile.json)

Data Collection0Example of Job Description(job_description.json)

Build Keyword Set

0 The skills Keyword Set (profile.json)0 Good to use

0 The Job Description has no Keyword Set (job_description.json)

0 Need to analyse0 AlchemyAPI

0https://github.com/AlchemyAPI

Build Keyword Set

0Generate The Keywords Set from job description (Job_skills.json)0 Example:

Build The Relationship 0Web-Karma

0 https://github.com/InformationIntegrationGroup/Web-Karma

0Prepare the ontology0 http://mayor2.dia.fi.upm.es/oeg-upm/index.php/en/on

tologies/99-hrmontology

0 Convert the .ttl format to .owl by using the “OWL Syntax Converter” developed by the University of Machester0http://mowl-power.cs.man.ac.uk:8080/converter/

0 Preload into the Web-Karma

Build The Relationship 0The HR ontology

Build The Relationship 0Build Profile Linkage

Build The Relationship 0Build Linkage for Job skills

Build The Relationship 0Build Linkage for Job Information

Compute the Matching Score

0Load the profile.rdf and job_skills.rdf to Jena

0Do the SPARQL query, count the number of the items which are same.0 Example Query

Query Exampleselect ?name where { ?y ?id . filter (?id = '5831587').?y ?x .?x .?x ?z .{ ?x ?name filter (?name = 'C++')} union { ?x ?name filter (?name = 'OpenGL')} union { ?x ?name filter (?name = 'Photoshop')} union { ?x ?name filter (?name = 'Windows')} union { ?x ?name filter (?name = 'Visual Studio')} union { ?x ?name filter (?name = 'Linux')} union { ?x ?name filter (?name = 'UML')} union { ?x ?name filter (?name = 'JavaScript')} union { ?x ?name filter (?name = 'Cocos2d')} union { ?x ?name filter (?name = 'Objective-C')} union { ?x ?name filter (?name = 'C')} union { ?x ?name filter (?name = 'OS X')} union { ?x ?name filter (?name = 'Computer Vision')} union { ?x ?name filter (?name = 'iOS')} union { ?x ?name filter (?name = 'Machine Vision')} union { ?x ?name filter (?name = 'Cocoa Touch')} union { ?x ?name filter (?name = 'Hibernate')} union { ?x ?name filter (?name = 'Xcode')} union { ?x ?name filter (?name = 'Mac OS X')} union { ?x ?name filter (?name = 'LaTeX')} union { ?x ?name filter (?name = 'MySQL')} union { ?x ?name filter (?name = 'Java')}}

What’s New0 No open-source job application provides job semantic matching

0 All the job hunting web services just provide the searching result according to the latest creation time of the job position.

0 How to convert Json to RDF format0 We checked lots of converters however few of them provide this

feature, but most of them can only convert semantic file format.1.RDF Translator: http://ebusiness-unibw.org (NG)2.Karma:http://github.com/InformationIntegrationGroup/Web-Karma (Good)

Result0Demo

0 Welcome to use our job matching engine!

Question?