# Kjetil Kjernsmo (@kjetil.kjernsmo.net)

Profile: https://sifa.id/p/kjetil.kjernsmo.net
Headline: Senior Consultant at Devotta AS
Website: https://kjetil.kjernsmo.net/

## About

Public Interest Technologist. Currently working to understand how democracies can gain regulability of the technology landscape through developing technologies with a democratic mandate. I take a broad view, from the long term impacts of technology, down to the very details of developing systems deep down. Currently working to improve the workings of public debate.

## Career

- **Senior Consultant at devotta AS** (Aug 2026 - Present)
  Remote
- **Founder and Principal Consultant at Multiarc** (Oct 2010 - Present)
  Self-employed
  Multiarc is my one-man company that does consulting on Semantic Web technologies, instructional and motivational talks on outdoor life and licensing of my late father's work.
- **Senior Advisor at Norwegian Agency for Development Cooperation** (Jan 2022 - Dec 2022)
  Full-time
  Technical expert on normative technologies and Digital Public Goods
- **Senior Developer at Inrupt Inc.** (Jul 2018 - Jan 2022)
  Remote
  Working to re-decentralize the Web on the Solid project.
- **Senior Scientist at Real Time Web** (May 2018 - Jul 2018)
  Hybrid
  Working with Semantic Web technologies in relation to Nornir's event based IoT platform.
- **Ph.D. Research Fellow at University of Oslo** (Oct 2010 - Dec 2016)
  Hybrid
  Ph.D. in informatics with a thesis titled "SPARQL on the open, decentralised Web"
- **Developer at ABC Startsida.no** (Jan 2010 - Oct 2010)
  On-site
  I modernized the framework behind Startsiden's catalog, at the time one of Norway's highest traffic sites. This enable new products to be developed more efficiently.
- **Senior Knowledge Engineer with Semantic Web speciality at Computas AS** (Aug 2007 - Dec 2009)
  On-site
  Engaged in various projects involving web technology, with emphasis on Semantic Web
- **Semantic Web Specialist at Opera Software Asa** (Dec 2006 - Jul 2007)
  On-site
  Exposed RDF and SPARQL from the Opera Community; participated in standards groups, such as Web Content Label XG, POWDER WG, and Semantic Web Education and Outreach IG, where I initiated the Community Projects.
- **Information Systems Developer at Opera Software Asa** (May 2005 - Dec 2006)
  Developer on a social networking site, Opera Community, as well as smaller, internal projects.

## Projects

- **Demokratiløftet** (Aug 2026 - Present)
- **Solid Project** — https://solidproject.org/TR/2024/protocol-20240512 (Jun 2018 - May 2024)
  Worked with the software and specifications of the Solid Project, in particular the Protocol
- **SPARQL 1.1 WG** — https://www.w3.org/TR/sparql11-overview/ (2010 - 2013)
  Helped with the definition of the SPARQL Query language, especially the 1.1 version.
- **W3C Working Group - Protocol for Web Description Resources (POWDER)** — http://www.w3.org/2007/powder/ (Mar 2007 - Oct 2009)
  The mission of the Protocol for Web Description Resources (POWDER) Working Group is to develop a mechanism through which structured metadata ("Description Resources") can be authenticated and applied to groups of Web resources. This mechanism will allow retrieval of the description resources without retrieval of the resources they describe.

## Publications

- SPARQL on the Open, Decentralised Web (2016) https://api.nva.unit.no/publication/0198cc89641a-7d7692b2-fc7a-42c0-9995-ddce37f149b6
- Vi må skape sosiale medier for alle (2016) https://api.nva.unit.no/publication/0198cc42f386-9a2e94b9-2bc9-491e-b252-1d40eed3949e
- Interview: How can scientific methods provide guidance for Semantic Web Research and Development? — CEUR Workshop Proceedings (2015) http://www.scopus.com/inward/record.url?eid=2-s2.0-84954182056&partnerID=MN8TOARS
- A survey of HTTP caching implementations on the open semantic web — Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (2015) http://www.scopus.com/inward/record.url?eid=2-s2.0-84937468003&partnerID=MN8TOARS
- Addendum to a survey of HTTP caching on the Semantic Web (2015) https://hdl.handle.net/10852/43339
- Experimental prefetching SPARQL query cacher (2015) https://api.nva.unit.no/publication/0198cc79b6bf-e164f1b7-bea6-43fa-ac91-ba7bdddc1ab0
- How can scientific methods provide guidance for Semantic Web Research and Development? (2015) https://api.nva.unit.no/publication/0198cc8dff5c-cc31390c-5ca6-4710-9e29-8bdb2ad9a2bc
- Pushing complexity down the stack — CEUR Workshop Proceedings (2014) http://www.scopus.com/inward/record.url?eid=2-s2.0-84908698278&partnerID=MN8TOARS
- Pushing complexity down the stack — CEUR Workshop Proceedings (2014) https://api.nva.unit.no/publication/0198cc4f9a74-7a7a4897-770c-451a-9f94-40ba089e34ba
- The prevalence of HTTP caching headers on SPARQL Endpoint (2014) https://api.nva.unit.no/publication/0198cc6ba407-2433e459-f543-49a7-98e9-2c9f1836f91e
- Merits of Hypermedia Systems — Dagstuhl Seminar 13252 (2013) https://api.nva.unit.no/publication/0198cc526097-1ff25d34-225e-4fd8-abf0-25a73e723852
- Merits of Hypermedia Systems — Dagstuhl Reports (2013) https://api.nva.unit.no/publication/0198cc605661-94038d8a-d678-4f1d-adf0-4095a89a8537
- Sharing Statistics for SPARQL Federation Optimization, with Emphasis on Benchmark Quality — Extended Semantic Web Conference 2012 (2012) https://api.nva.unit.no/publication/0198cc455cf5-18facc36-dd05-4f48-8ff6-36735563a454
- The necessity of hypermedia RDF and an approach to achieve it — Extended Semantic Web Conference 2012 (2012) https://api.nva.unit.no/publication/0198cc4dc133-94c47881-a814-496c-8d5c-5d6d3c5a4d73
- Sharing statistics for SPARQL federation optimization, with emphasis on benchmark quality — Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (2012) http://www.scopus.com/inward/record.url?eid=2-s2.0-84861749529&partnerID=MN8TOARS
- Introduksjon til Semantic Web (2011) https://api.nva.unit.no/publication/0198cc70342e-9adffe10-8718-4548-8102-c565a927c290
- Detailed Implementation Experiences from Topic-Centred Information Portals (2009) https://api.nva.unit.no/publication/0198cc4f52ca-f12e3725-407a-438d-a030-4c5fb718fef9
- Around-the-clock observations of the Q0957+561A,B gravitationally lensed quasar. II. Results for the second observing season — Astrophysical Journal (2003) http://www.scopus.com/inward/record.url?eid=2-s2.0-0041331529&partnerID=MN8TOARS
- Around the clock observations of the Q0957 + 561A,B gravitationally lensed quasar — Astrophysical Journal (2002) http://www.scopus.com/inward/record.url?eid=2-s2.0-18544397785&partnerID=MN8TOARS
- Gravitational Microlensing of Quasar Clouds : Detectability in a Worst-Case Scenario (2002) https://api.nva.unit.no/publication/019c931deabb-4f1e9757-0df0-4f47-bb7b-e0fa274e566b
- The jet and circumburst stellar wind of GRB 980519 — Astrophysical Journal (2001) http://www.scopus.com/inward/record.url?eid=2-s2.0-0035217777&partnerID=MN8TOARS
- X-Ray Observations of Microlensing Events (1999) https://api.nva.unit.no/publication/0198cc4f88b4-6fc3e7d6-f4c7-48de-bf0c-96b2af6db3d8
- Exams hinder critical thought — Physics World (1998) http://www.scopus.com/inward/record.url?eid=2-s2.0-77950053103&partnerID=MN8TOARS
- A Preliminary Empirical Study of Firewalking (1997) https://api.nva.unit.no/publication/0198cc4f52da-b6e80411-980e-4feb-acbe-f3a3e3e2f41f
- Some Popular Myths about the History of Astronomy (1996) https://api.nva.unit.no/publication/0198cc4cad27-76eb1d0d-119d-44d2-b2ea-752a0d7aa5dc
- Introducing Statistical Design of Experiments to SPARQL Endpoint Evaluation — Lecture Notes in Computer Science http://folk.uio.no/kjekje/2013/iswc.pdf

## Skills

### Technical
- Arduino
- AT Protocol
- Databases
- HTML
- Hypermedia
- Java
- Linked Data
- Perl
- R
- RDF
- Redis
- Resource Description Framework (RDF)
- REST
- Semantic Web
- Solid
- SPARQL
- SQL
- Web Development
### Business
- Computer Science
- Physics
- Software Development
- Statistics
### Creative
- Firewalking
- Mountaineering
- Orienteering
- Skiing
### Community
- CPAN
- Open Source

## Education

- **University of Oslo** — Doctor of Philosophy (PhD), Informatics (2010 - 2016)
  Thesis titled "SPARQL on the open, decentralised Web"
- **University of Oslo** — Cand. Scient, Theoretical astrophysics (1994 - 2002)
  Master thesis entitled "Gravitational Microlensing of Quasar Clouds".
  Activities & Societies: President, Norwegian Association for Physics Students; President, Physics Student's Panel; Vice President, Astronomy Student's Panel; Norwegian delegate, International Conference for Physics Students
- **stovner videregående skole** — Examen Artium (1990 - 1992)

## Awards

- Semantic Web Developer of the Year 2014 (Oct 2014)

## Involvement

### Open Source
- Cpan (Oct 2003 - Present)
  Module Author

## Languages

- Bokmål, Norwegian (native)
- English (professional working)
- German (elementary)

## Links

- Homepage and blog: https://kjetil.kjernsmo.net/ (verified)
- GitHub: https://github.com/kjetilk/ (verified)
- ORCID: https://orcid.org/0009-0008-8435-2009 (verified)