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In LinkedIn We Trust??? (to Source Our Candidates)

Mei Lu
Mei Lu

A presentation at Sourcing 7 Fall Shareback on November 20, 2014 at Amazon in Seattle. This is a case study to compare the results of LinkedIn native search and Google x-ray search. We use a Web Developer position in Chicago as an example. The keywords in the Boolean string include Ruby, Rails, Sinatra, TDD (test driven development), and BDD (behavior driven development). We want to look for local Chicago candidates. We learn how to improve our Boolean search string and when to use either Google x-ray or LinkedIn search. Speaker: Mei Lu Founder & CEO Geekology.biz | Jobfully.com

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In LinkedIn We Trust ??? In data analysis we trust - a case study Mei Lu Founder & CEO Geekology.biz Sourcing 7 Fall 2014 Shareback @ Amazon
Account types Breakdown
It looks like we A LOT
Is trust-worthy ?
Trust, but verify
A simple experiment
Step 1: Find a Job Posting
Software Developer - Chicago Requirements: 2-3 years of experience writing software with Ruby 2-3 years of web development experience with Ruby on Rails or Sinatra Direct experience with the development and maintenance of large-scale, mission-critical web applications Experience with TDD and BDD
Software Developer - Chicago Requirements: 2-3 years of experience writing software with Ruby 2-3 years of web development experience with Ruby on Rails or Sinatra Direct experience with the development and maintenance of large-scale, mission-critical web applications Experience with TDD and BDD
Step 2: - Use your basic (free) LinkedIn account. - Search.
LinkedIn Advanced Search: Keywords: ruby rails sinatra tdd bdd Location: "Greater Chicago Area
Step 3: - Find a search engine. - X-ray search LinkedIn profiles.
site:www.linkedin.com "location * greater chicago area" ruby rails sinatra tdd bdd
The moment of truth - comparing results
In LinkedIn We Trust??? (to Source Our Candidates)
In LinkedIn We Trust??? (to Source Our Candidates)
19 = 19 The End ???
Numbers alone dont tell the whole story WHY, BRAD DARLINseGa,rchI FEEL SOMETHINGS MISSING FROM THIS PICTURE.
Time to do some detective work
Name LinkedIn Google X-ray Alex Kowalczuk x Brandon Bailey x x Calder Wishne x x Dan Melnick x x Darby Frey x Eduardo Garibay x x Ismail Kalimi x Jake Sikora x James Fraser x Jason Perkins x Jazmin Schroeder x JD Kaplan x Joshua Davey x x Justin Joseph x Keenan Turner x Kevin Horst x xx Marek Pyczkowski x Nate Delage x x Nickolay Schwarz x Randy Burgess x Ryan Kinderman x Shawn Klein x x Shinji Kuwayama x Stephen Wooten x Ted Price x xx Zach Briggs x Zachary Rivest x x
Name LinkedIn Google X-ray Alex Kowalczuk x Brandon Bailey x x Calder Wishne x x Dan Melnick x x Darby Frey x Eduardo Garibay x x Ismail Kalimi x Jake Sikora x James Fraser x Jason Perkins x Jazmin Schroeder x JD Kaplan x Joshua Davey x x Justin Joseph x Keenan Turner x Kevin Horst x xx Marek Pyczkowski x Nate Delage x x Nickolay Schwarz x Randy Burgess x Ryan Kinderman x Shawn Klein x x Shinji Kuwayama x Stephen Wooten x Ted Price x xx Zach Briggs x Zachary Rivest x x LinkedIn Exclusive Google X-ray Exclusive Both 10 8 9 Total 27 19 17
Question: Why are there profiles only in Google X-ray, but not in LinkedIn?
1. Google shows us both TDD and Test Driven Development
2. Google shows us some profiles with one keyword (bdd, Sinatra) missing
Name LinkedIn Google X-ray Alex Kowalczuk (missing bdd) Brandon Bailey x x Calder Wishne x x Dan Melnick x x Darby Frey x Eduardo Garibay x x Ismail Kalimi x Jake Sikora (missing bdd) not really James Fraser x Jason Perkins x Jazmin Schroeder x JD Kaplan x Joshua Davey x x Justin Joseph x Keenan Turner x Kevin Horst x xx Marek Pyczkowski x Nate Delage x x Nickolay Schwarz x Randy Burgess (missing bdd) Ryan Kinderman (missing Sinatra) Shawn Klein x x Shinji Kuwayama x Stephen Wooten x Ted Price x xx Zach Briggs x Zachary Rivest x x LinkedIn Exclusive Google X-ray Exclusive Both 10 8 4 9 Total 19 17 13 Should it count??? Cleaning Up Google X-ray Results 23
Still There are 4 results only in Google X-ray, but not in LinkedIn
What if we make our Boolean string better? TDD -> (TDD OR test driven development) BDD -> (BDD OR behavior driven development)
LinkedIn Advanced Search: Keywords: ruby rails sinatra (tdd OR test driven development) (bdd OR behavior driven development) Location: "Greater Chicago Area
In LinkedIn We Trust??? (to Source Our Candidates)
Name LinkedIn w/ Basic Boolean LinkedIn w/ Better Boolean Andrew Larson x Brandon Bailey x x Calder Wishne x x Dan Melnick x x Darby Frey x Eduardo Garibay x x Eugene Filimonov x Ismail Kalimi x x Jake Sikora x James Fraser x x Jason Perkins x x Jazmin Schroeder x JD Kaplan x x Joshua Davey x x Justin Joseph x x Justin Park x Keenan Turner x x Kevin Horst x x Marek Pyczkowski x x Milan Grubni x Nate Delage x x Nickolay Schwarz x x Shawn Klein x x Shinji Kuwayama x Stephen Wooten x Stuart Pearlman x Ted Price x x Xander Glassman x Zach Briggs x x Zachary Rivest x x All gain; no loss. Yay! Better Boolean 11 Both 19
How about Google X-ray with the better Boolean string? site:linkedin.com "location * greater chicago area" ruby rails sinatra (tdd OR "test driven development") (bdd OR "behavior driven development")
Name Google w/ Basic Boolean Google w/ Better Boolean Alex Kowalczuk missing bdd Andrew Larson x Brandon Bailey x x Calder Wishne x x Dan Melnick x Darby Frey x x Eduardo Garibay x x Eugene Filimonov x Jake Sikora missing bdd (not really) x Jazmin Schroeder x x Joshua Davey x Justin Park x Kevin Horst xx xx Nate Delage x x Randy Burgess missing bdd Ryan Kinderman missing bdd Shawn Klein x x Shinji Kuwayama x x Stephen Wooten x x Ted Price xx xx Zachary Rivest x x Total 17 17 Same numbers of results. But cleaner. Gain w/ Better Boolean Loss w/ Better Boolean 4 4
Final SHOWDOWN Best of LinkedIn Advanced Search (Free Account) and Google X-ray Search of LinkedIn
Name LinkedIn (30) Google (17) Andrew Larson x x Brandon Bailey x x Calder Wishne x x Dan Melnick x Darby Frey x x Eduardo Garibay x x Eugene Filimonov x x Ismail Kalimi x Jake Sikora x x James Fraser x Jason Perkins x Jazmin Schroeder x x JD Kaplan x Joshua Davey x x Justin Joseph x Justin Park x x Keenan Turner x Kevin Horst x xx Marek Pyczkowski x Milan Grubni x Nate Delage x x Nickolay Schwarz x Shawn Klein x x Shinji Kuwayama x x Stephen Wooten x x Stuart Pearlman x Ted Price x xx Xander Glassman x Zach Briggs x Zachary Rivest x x LinkedIn Exclusive Google X-ray Exclusive Both 13 0 17
What have we learned? 1.LinkedIn searches literally while Google searches fluidly 2.Google tries to help us by including synonyms behind the scene 3.When we compose thorough and comprehensive Boolean strings, LinkedIn outperforms Google X-ray (at least in this study)
Case closed? Not so fast The next set of questions already surfaced
How much can we rely on Google to improve our Boolean search strings? Why did Google fail to find some profiles? Would a paid LinkedIn account give us more (and exhaustive) results?
Questions? Special thanks to Amybeth Quinn Mei Lu Geekology.biz @g33kology

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In LinkedIn We Trust??? (to Source Our Candidates)

  • 1. In LinkedIn We Trust ??? In data analysis we trust - a case study Mei Lu Founder & CEO Geekology.biz Sourcing 7 Fall 2014 Shareback @ Amazon
  • 3. It looks like we A LOT
  • 7. Step 1: Find a Job Posting
  • 8. Software Developer - Chicago Requirements: 2-3 years of experience writing software with Ruby 2-3 years of web development experience with Ruby on Rails or Sinatra Direct experience with the development and maintenance of large-scale, mission-critical web applications Experience with TDD and BDD
  • 9. Software Developer - Chicago Requirements: 2-3 years of experience writing software with Ruby 2-3 years of web development experience with Ruby on Rails or Sinatra Direct experience with the development and maintenance of large-scale, mission-critical web applications Experience with TDD and BDD
  • 10. Step 2: - Use your basic (free) LinkedIn account. - Search.
  • 11. LinkedIn Advanced Search: Keywords: ruby rails sinatra tdd bdd Location: "Greater Chicago Area
  • 12. Step 3: - Find a search engine. - X-ray search LinkedIn profiles.
  • 13. site:www.linkedin.com "location * greater chicago area" ruby rails sinatra tdd bdd
  • 14. The moment of truth - comparing results
  • 17. 19 = 19 The End ???
  • 18. Numbers alone dont tell the whole story WHY, BRAD DARLINseGa,rchI FEEL SOMETHINGS MISSING FROM THIS PICTURE.
  • 19. Time to do some detective work
  • 20. Name LinkedIn Google X-ray Alex Kowalczuk x Brandon Bailey x x Calder Wishne x x Dan Melnick x x Darby Frey x Eduardo Garibay x x Ismail Kalimi x Jake Sikora x James Fraser x Jason Perkins x Jazmin Schroeder x JD Kaplan x Joshua Davey x x Justin Joseph x Keenan Turner x Kevin Horst x xx Marek Pyczkowski x Nate Delage x x Nickolay Schwarz x Randy Burgess x Ryan Kinderman x Shawn Klein x x Shinji Kuwayama x Stephen Wooten x Ted Price x xx Zach Briggs x Zachary Rivest x x
  • 21. Name LinkedIn Google X-ray Alex Kowalczuk x Brandon Bailey x x Calder Wishne x x Dan Melnick x x Darby Frey x Eduardo Garibay x x Ismail Kalimi x Jake Sikora x James Fraser x Jason Perkins x Jazmin Schroeder x JD Kaplan x Joshua Davey x x Justin Joseph x Keenan Turner x Kevin Horst x xx Marek Pyczkowski x Nate Delage x x Nickolay Schwarz x Randy Burgess x Ryan Kinderman x Shawn Klein x x Shinji Kuwayama x Stephen Wooten x Ted Price x xx Zach Briggs x Zachary Rivest x x LinkedIn Exclusive Google X-ray Exclusive Both 10 8 9 Total 27 19 17
  • 22. Question: Why are there profiles only in Google X-ray, but not in LinkedIn?
  • 23. 1. Google shows us both TDD and Test Driven Development
  • 24. 2. Google shows us some profiles with one keyword (bdd, Sinatra) missing
  • 25. Name LinkedIn Google X-ray Alex Kowalczuk (missing bdd) Brandon Bailey x x Calder Wishne x x Dan Melnick x x Darby Frey x Eduardo Garibay x x Ismail Kalimi x Jake Sikora (missing bdd) not really James Fraser x Jason Perkins x Jazmin Schroeder x JD Kaplan x Joshua Davey x x Justin Joseph x Keenan Turner x Kevin Horst x xx Marek Pyczkowski x Nate Delage x x Nickolay Schwarz x Randy Burgess (missing bdd) Ryan Kinderman (missing Sinatra) Shawn Klein x x Shinji Kuwayama x Stephen Wooten x Ted Price x xx Zach Briggs x Zachary Rivest x x LinkedIn Exclusive Google X-ray Exclusive Both 10 8 4 9 Total 19 17 13 Should it count??? Cleaning Up Google X-ray Results 23
  • 26. Still There are 4 results only in Google X-ray, but not in LinkedIn
  • 27. What if we make our Boolean string better? TDD -> (TDD OR test driven development) BDD -> (BDD OR behavior driven development)
  • 28. LinkedIn Advanced Search: Keywords: ruby rails sinatra (tdd OR test driven development) (bdd OR behavior driven development) Location: "Greater Chicago Area
  • 30. Name LinkedIn w/ Basic Boolean LinkedIn w/ Better Boolean Andrew Larson x Brandon Bailey x x Calder Wishne x x Dan Melnick x x Darby Frey x Eduardo Garibay x x Eugene Filimonov x Ismail Kalimi x x Jake Sikora x James Fraser x x Jason Perkins x x Jazmin Schroeder x JD Kaplan x x Joshua Davey x x Justin Joseph x x Justin Park x Keenan Turner x x Kevin Horst x x Marek Pyczkowski x x Milan Grubni x Nate Delage x x Nickolay Schwarz x x Shawn Klein x x Shinji Kuwayama x Stephen Wooten x Stuart Pearlman x Ted Price x x Xander Glassman x Zach Briggs x x Zachary Rivest x x All gain; no loss. Yay! Better Boolean 11 Both 19
  • 31. How about Google X-ray with the better Boolean string? site:linkedin.com "location * greater chicago area" ruby rails sinatra (tdd OR "test driven development") (bdd OR "behavior driven development")
  • 32. Name Google w/ Basic Boolean Google w/ Better Boolean Alex Kowalczuk missing bdd Andrew Larson x Brandon Bailey x x Calder Wishne x x Dan Melnick x Darby Frey x x Eduardo Garibay x x Eugene Filimonov x Jake Sikora missing bdd (not really) x Jazmin Schroeder x x Joshua Davey x Justin Park x Kevin Horst xx xx Nate Delage x x Randy Burgess missing bdd Ryan Kinderman missing bdd Shawn Klein x x Shinji Kuwayama x x Stephen Wooten x x Ted Price xx xx Zachary Rivest x x Total 17 17 Same numbers of results. But cleaner. Gain w/ Better Boolean Loss w/ Better Boolean 4 4
  • 33. Final SHOWDOWN Best of LinkedIn Advanced Search (Free Account) and Google X-ray Search of LinkedIn
  • 34. Name LinkedIn (30) Google (17) Andrew Larson x x Brandon Bailey x x Calder Wishne x x Dan Melnick x Darby Frey x x Eduardo Garibay x x Eugene Filimonov x x Ismail Kalimi x Jake Sikora x x James Fraser x Jason Perkins x Jazmin Schroeder x x JD Kaplan x Joshua Davey x x Justin Joseph x Justin Park x x Keenan Turner x Kevin Horst x xx Marek Pyczkowski x Milan Grubni x Nate Delage x x Nickolay Schwarz x Shawn Klein x x Shinji Kuwayama x x Stephen Wooten x x Stuart Pearlman x Ted Price x xx Xander Glassman x Zach Briggs x Zachary Rivest x x LinkedIn Exclusive Google X-ray Exclusive Both 13 0 17
  • 35. What have we learned? 1.LinkedIn searches literally while Google searches fluidly 2.Google tries to help us by including synonyms behind the scene 3.When we compose thorough and comprehensive Boolean strings, LinkedIn outperforms Google X-ray (at least in this study)
  • 36. Case closed? Not so fast The next set of questions already surfaced
  • 37. How much can we rely on Google to improve our Boolean search strings? Why did Google fail to find some profiles? Would a paid LinkedIn account give us more (and exhaustive) results?
  • 38. Questions? Special thanks to Amybeth Quinn Mei Lu Geekology.biz @g33kology