Speaker: David Meza, Senior Data Scientist, NASA

1. National Aeronautics and Space Administration
www.nasa.gov
Identifying Workforce Skills
& Capabilities Knowledge
Graph
David Meza
Sr. Data Scientist
Office of the Chief Human Capital Officer
1

2. Creating Knowledge Graphs
• Understand the Domain
• Ask the Questions
• Define your Model
• Do the Analysis
2

3. 3
Understand Your Domain

4. 4

5. HR Executives Say Skills Most Important
5

6. What Are The Questions?
• What is my workforce skill map?
• Where are skills grouped?
• Programs
• Projects
• Location
• Can I identify adjacent skills?
• Cypher à SQL
• Python à R
• I want to change careers, what should I learn?
6

7. Define Your Model
Information Technology Competency Model
7
Source: Employment and Training Administration US DOL

8. Core Elements of Skill Inventory Systems
8

9. Gather the Data
Governmental Approaches
9

10. ONET-SOC 2019 Taxonomy
10

11. Graph Model
11

12. Occupation Ontology: Graph View
12

13. KSAT Knowledge Graph Model
13

14. Occupation Elements
14

15. Compare Work Roles
15

16. Rank Skills by Occupation
OPM Occupation SOC Group Element Value
GS-1550
computer and information research
scientists
15-
1111.00
['Basic_Skill
s']
understanding written sentences and paragraphs in work
related documents. 4.5
GS-1550
computer and information research
scientists
15-
1111.00
['Basic_Skill
s']
giving full attention to what other people are saying, taking
time to understand the points being made, asking questions as
appropriate, and not interrupting at inappropriate times. 4.12
GS-1550
computer and information research
scientists
15-
1111.00
['Basic_Skill
s']
communicating effectively in writing as appropriate for the
needs of the audience. 4.12
GS-1550
computer and information research
scientists
15-
1111.00
['Basic_Skill
s'] talking to others to convey information effectively. 4.12
GS-1550
computer and information research
scientists
15-
1111.00
['Basic_Skill
s'] using mathematics to solve problems. 4.38
GS-1550
computer and information research
scientists
15-
1111.00
['Basic_Skill
s']
using logic and reasoning to identify the strengths and
weaknesses of alternative solutions, conclusions or approaches
to problems. 4.25
GS-1550
computer and information research
scientists
15-
1111.00
['Basic_Skill
s']
using logic and reasoning to identify the strengths and
weaknesses of alternative solutions, conclusions or approaches
to problems. 4
GS-855 electrical engineers
17-
2071.00
['Basic_Skill
s']
understanding written sentences and paragraphs in work
related documents. 3.88
16

17. Career Change
CALL gds.graph.create.cypher(‘IT_Program_Knowledge',
'MATCH (n) WHERE (n:Occupation) OR (n:Knowledge) RETURN id(n) AS id',
'MATCH (opm:OPMSeries)-[r:IN_OPM_Series]-(occ:Occupation) WHERE opm.series IN ["GS-2210-0", "GS-0080-0", "GS-0340-0", "GS-
0343-0"] WITH occ, opm MATCH (occ)-[f:Found_In]-(s:Knowledge) WHERE f.scale = "IM" AND f.datavalue > 2.99
RETURN id(occ) AS source, id(s) AS target’
)
CALL gds.nodeSimilarity.stream('IT_Program_Knowledge')
YIELD node1, node2, similarity
RETURN gds.util.asNode(node1).title AS Occupation1, gds.util.asNode(node2).title AS Occupation2, similarity
ORDER BY Occupation1
17
Occupation1 Occupation2 similarity
management analysts online merchants 57.14%
management analysts search marketing strategists 46.15%
management analysts business intelligence analysts 46.15%
management analysts information technology project managers 43.75%
management analysts informatics nurse specialists 38.89%
management analysts geospatial information scientists and technologists 33.33%
management analysts web administrators 33.33%
management analysts sustainability specialists 33.33%
management analysts business continuity planners 31.25%
management analysts telecommunications engineering specialists 29.41%

18. Adding to Knowledge Graph
18

19. KSATs by Project
19

20. More to Come
• Recommendation Engine
• I have certain skills, what jobs are available
• I need certain skills for my project, who is available
• Expert Finder
• Develop Training Plans
• Outline Career paths
20

21. Contact Information
David Meza – david.meza-1@nasa.gov
Twitter - @davidmeza1
Linkedin - https://www.linkedin.com/in/davidmeza1/
Github – davidmeza1