3. LinkedInsight
Changing fields / Looking for a new career ?!
!
What are the skills that matter and will get you noticed ?!
!
!
!
!
!
4. LinkedInsight
Changing fields / Looking for a new career ?!
!
What are the skills that matter and will get you noticed ?!
!
Who in your professional network can help ?!
!
!
!
5. LinkedInsight
Changing fields / Looking for a new career ?!
!
What are the skills that matter and will get you noticed ?!
!
Who in your professional network can help ?!
!
Where are the leaders in the field (future mentors) ?!
!
6. LinkedInsight
Changing fields / Looking for a new career ?!
!
What are the skills that matter and will get you noticed ?!
!
Who in your professional network can help ?!
!
Where are the leaders in the field (future mentors) ?!
!
Which groups should you join to stay up to date ?
10. LinkedInsight
Search for keyword
8000+ user profiles
{Headline, background,!
experience}
Find the popular groups
{Skills+Endorsements!
of group members}
Ranked skill set
e.g. “data scientist”
Machine Learning, Data Mining, Analytics, Data Analysis, Big Data, …
11. LinkedInsight
Search for keyword
8000+ user profiles
{Headline, background,!
experience}
Find the popular groups
{Skills+Endorsements!
of group members}
Ranked skill set
e.g. “data scientist”
Machine Learning, Data Mining, Analytics, Data Analysis, Big Data, …
Want to get the signal out of the noise
13. LinkedInsight
Classification: extract feature importance
Split members of the groups by experience (based on keyword)
{Collect skill sets of each}
Use most popular skills as features (include education level)
14. LinkedInsight
Classification: extract feature importance
Split members of the groups by experience (based on keyword)
{Collect skill sets of each}
Use most popular skills as features (include education level)
{RandomForestClassifier}
Accuracy: 83%, F1 : 82 %
Order features by weights
16. About Me : Cian Menzel-Jones
Numerical simulations of!
light-matter interactions
Developed approaches to extract molecular structure !
and to image dynamics from spectroscopic data
18. LinkedInsight
Extensions!
!
1) Extract trending skills (comparing junior vs senior employers; time-dependence)!
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2) Group similar skills using PCA ( e.g. SQL, MySQL, SQLite,…)!
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3) Employment behavior in different sectors and companies!
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!
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— Job retention and promotion rate !
— Skills by company, education level, etc. given keyword!
— Observe 1-year cliff, who’s been most susceptible!
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4) Link to online learning (clustering of courses based on word similarities)!
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5) Job/Field recommendations based on your skill set!
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— Presents users unknown career possibilities!
— Location map of contacts, leaders and companies with skill sets!
!
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6) TF-IDF of words in user’s background and profile given keyword
19. LinkedInsight
Challenges!
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LinkedIn API or public profile (limited data)!
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Scrap my own network!
! Change status to invisible!
!
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Executive membership to allow viewing of 700 connections!
Join groups to see up to 500 members (See 3rd degree connections)!
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Selenium Webdrive!
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Javascript (lazy scroll, tab refresh,…)!
Random waits between scraps averaging 30s (cut off once a day)!
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Parsing pages and profiles!
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Logged in users connections, groups and companies (and members)!
Each user profile (title, background, education, skills, …)!
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Algorithm!
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How to represent features based on frequency, endorsements, education level,…
