Evidence floor met in this release.
Published segment leaderboard
Deep Tech & Hardware: Problem-first research in the Machine Relations Index
This leaderboard uses only the Deep Tech & Hardware / Problem-first research segment denominator: 236 observed answer runs across 12 dates.
Segment-specific denominator. Not the overall domain denominator.
Release floor: 7 dates.
Only released domains with evidence in this exact segment.
Leaderboard
Segment-specific cited sources
Rates, runs and rank are the producer's segment-specific values. Overall domain rates and engine breadth are not used as category rates.
| Rank | Source | Source role | Citation rate | Cited runs | Observed runs | Run dates |
|---|---|---|---|---|---|---|
| #1 of 298 | Analog.comanalog.com | Other observed source | 17.80% | 42 | 236 | 12 |
| #2 of 298 | Ti.comti.com | Other observed source | 13.56% | 32 | 236 | 12 |
| #3 of 298 | Allaboutcircuits.comallaboutcircuits.com | Other observed source | 8.47% | 20 | 236 | 12 |
| #4 of 298 | Arduino.ccarduino.cc | Other observed source | 8.47% | 20 | 236 | 12 |
| #5 of 298 | Redditreddit.com | Community and social platform | 7.63% | 18 | 236 | 12 |
| #6 of 298 | Microchip.commicrochip.com | Other observed source | 6.78% | 16 | 236 | 12 |
| #7 of 298 | LinkedInlinkedin.com | Community and social platform | 6.36% | 15 | 236 | 12 |
| #8 of 298 | Patsnap.compatsnap.com | Other observed source | 6.36% | 15 | 236 | 12 |
| #9 of 298 | 3g-electric.com.sg3g-electric.com.sg | Vendor-owned source | 5.51% | 13 | 236 | 12 |
| #10 of 298 | Engineeringniche.comengineeringniche.com | Other observed source | 5.51% | 13 | 236 | 12 |
| #11 of 298 | Honeywell.comhoneywell.com | Other observed source | 5.51% | 13 | 236 | 12 |
| #12 of 298 | Stackexchange.comstackexchange.com | Community and social platform | 5.51% | 13 | 236 | 12 |
| #13 of 298 | Electricalflux.comelectricalflux.com | Other observed source | 5.08% | 12 | 236 | 12 |
| #14 of 298 | Sensorsedgehub.comsensorsedgehub.com | Other observed source | 5.08% | 12 | 236 | 12 |
| #15 of 298 | Universal-solder.cauniversal-solder.ca | Other observed source | 5.08% | 12 | 236 | 12 |
| #16 of 298 | YouTubeyoutube.com | Search or media platform | 4.66% | 11 | 236 | 12 |
| #17 of 298 | Nxp.comnxp.com | Other observed source | 4.24% | 10 | 236 | 12 |
| #18 of 298 | St.comst.com | Other observed source | 4.24% | 10 | 236 | 12 |
| #19 of 298 | Beefed.aibeefed.ai | Other observed source | 3.39% | 8 | 236 | 12 |
| #20 of 298 | Sciencedirect.comsciencedirect.com | Academic and government source | 3.39% | 8 | 236 | 12 |
| #21 of 298 | Wfsensors.comwfsensors.com | Other observed source | 3.39% | 8 | 236 | 12 |
| #22 of 298 | Arxiv.orgarxiv.org | Academic and government source | 2.97% | 7 | 236 | 12 |
| #23 of 298 | Clarity.ioclarity.io | Other observed source | 2.97% | 7 | 236 | 12 |
| #24 of 298 | Eevblog.comeevblog.com | Community and social platform | 2.97% | 7 | 236 | 12 |
| #25 of 298 | Fluke.comfluke.com | Other observed source | 2.97% | 7 | 236 | 12 |
| #26 of 298 | Fujielectric.comfujielectric.com | Other observed source | 2.97% | 7 | 236 | 12 |
| #27 of 298 | Monolithicpower.commonolithicpower.com | Other observed source | 2.97% | 7 | 236 | 12 |
| #28 of 298 | Ubibot.comubibot.com | Vendor-owned source | 2.97% | 7 | 236 | 12 |
| #29 of 298 | Embeddedrelated.comembeddedrelated.com | Other observed source | 2.54% | 6 | 236 | 12 |
| #30 of 298 | ESPboardsespboards.dev | Editorial publication | 2.54% | 6 | 236 | 12 |
| #31 of 298 | Oceanremote.netoceanremote.net | Other observed source | 2.54% | 6 | 236 | 12 |
| #32 of 298 | Tc-inc.comtc-inc.com | Other observed source | 2.54% | 6 | 236 | 12 |
| #33 of 298 | Bestpcbs.combestpcbs.com | Other observed source | 2.12% | 5 | 236 | 12 |
| #34 of 298 | Currycontrols.comcurrycontrols.com | Other observed source | 2.12% | 5 | 236 | 12 |
| #35 of 298 | Inclify.cominclify.com | Other observed source | 2.12% | 5 | 236 | 12 |
| #36 of 298 | Nerdyelectronics.comnerdyelectronics.com | Other observed source | 2.12% | 5 | 236 | 12 |
| #37 of 298 | Sensirion.comsensirion.com | Other observed source | 2.12% | 5 | 236 | 12 |
| #38 of 298 | Spectrumei.caspectrumei.ca | Other observed source | 2.12% | 5 | 236 | 12 |
| #39 of 298 | Tek.comtek.com | Other observed source | 2.12% | 5 | 236 | 12 |
| #40 of 298 | Titoma.comtitoma.com | Other observed source | 2.12% | 5 | 236 | 12 |
| #41 of 298 | Top-electronics.comtop-electronics.com | Other observed source | 2.12% | 5 | 236 | 12 |
| #42 of 298 | Vernier.comvernier.com | Other observed source | 2.12% | 5 | 236 | 12 |
| #43 of 298 | Diabeticlens.comdiabeticlens.com | Other observed source | 1.69% | 4 | 236 | 12 |
| #44 of 298 | Digikey.comdigikey.com | Other observed source | 1.69% | 4 | 236 | 12 |
| #45 of 298 | Esp32engine.comesp32engine.com | Other observed source | 1.69% | 4 | 236 | 12 |
| #46 of 298 | Fieldfix.aifieldfix.ai | Other observed source | 1.69% | 4 | 236 | 12 |
| #47 of 298 | Freedom251.comfreedom251.com | Other observed source | 1.69% | 4 | 236 | 12 |
| #48 of 298 | Germanjet.netgermanjet.net | Other observed source | 1.69% | 4 | 236 | 12 |
| #49 of 298 | Induflashnews.cominduflashnews.com | Other observed source | 1.69% | 4 | 236 | 12 |
| #50 of 298 | Linquip.comlinquip.com | Other observed source | 1.69% | 4 | 236 | 12 |
| #51 of 298 | Mcnicsensor.commcnicsensor.com | Other observed source | 1.69% | 4 | 236 | 12 |
| #52 of 298 | Origin-ic.comorigin-ic.com | Other observed source | 1.69% | 4 | 236 | 12 |
| #53 of 298 | Physicsforums.comphysicsforums.com | Other observed source | 1.69% | 4 | 236 | 12 |
| #54 of 298 | Poin-t-go.compoin-t-go.com | Other observed source | 1.69% | 4 | 236 | 12 |
| #55 of 298 | Realmcu.comrealmcu.com | Other observed source | 1.69% | 4 | 236 | 12 |
| #56 of 298 | Rikasensor.comrikasensor.com | Other observed source | 1.69% | 4 | 236 | 12 |
| #57 of 298 | Robotforge.orgrobotforge.org | Other observed source | 1.69% | 4 | 236 | 12 |
| #58 of 298 | Smashingrobotics.comsmashingrobotics.com | Other observed source | 1.69% | 4 | 236 | 12 |
| #59 of 298 | Snubber.aisnubber.ai | Other observed source | 1.69% | 4 | 236 | 12 |
| #60 of 298 | Sustainability-directory.comsustainability-directory.com | Other observed source | 1.69% | 4 | 236 | 12 |
| #61 of 298 | Um.edu.moum.edu.mo | Academic and government source | 1.69% | 4 | 236 | 12 |
| #62 of 298 | Unipi.itunipi.it | Other observed source | 1.69% | 4 | 236 | 12 |
| #63 of 298 | Zenn.devzenn.dev | Other observed source | 1.69% | 4 | 236 | 12 |
| #64 of 298 | Zeroinstrument.comzeroinstrument.com | Other observed source | 1.69% | 4 | 236 | 12 |
| #65 of 298 | Acs.orgacs.org | Other observed source | 1.27% | 3 | 236 | 12 |
| #66 of 298 | Adafruit.comadafruit.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #67 of 298 | Anvil.soanvil.so | Other observed source | 1.27% | 3 | 236 | 12 |
| #68 of 298 | Aperio.aiaperio.ai | Other observed source | 1.27% | 3 | 236 | 12 |
| #69 of 298 | Arizona.eduarizona.edu | Academic and government source | 1.27% | 3 | 236 | 12 |
| #70 of 298 | Audioscene.orgaudioscene.org | Other observed source | 1.27% | 3 | 236 | 12 |
| #71 of 298 | Battlbox.combattlbox.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #72 of 298 | Bme.hubme.hu | Other observed source | 1.27% | 3 | 236 | 12 |
| #73 of 298 | Ermtelematics.comermtelematics.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #74 of 298 | Gesrepair.comgesrepair.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #75 of 298 | Hackaday.comhackaday.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #76 of 298 | Hackaday.iohackaday.io | Other observed source | 1.27% | 3 | 236 | 12 |
| #77 of 298 | Hvacrschool.comhvacrschool.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #78 of 298 | Infrasensing.cominfrasensing.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #79 of 298 | Kevsrobots.comkevsrobots.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #80 of 298 | Learnfrc.comlearnfrc.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #81 of 298 | Malloyelectric.commalloyelectric.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #82 of 298 | Mclpcb.commclpcb.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #83 of 298 | Mikroe.commikroe.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #84 of 298 | Mit.edumit.edu | Academic and government source | 1.27% | 3 | 236 | 12 |
| #85 of 298 | Oregonstate.eduoregonstate.edu | Academic and government source | 1.27% | 3 | 236 | 12 |
| #86 of 298 | Paylesspower.compaylesspower.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #87 of 298 | Prototypeguru.comprototypeguru.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #88 of 298 | Roboticsfaq.comroboticsfaq.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #89 of 298 | Runtimerec.comruntimerec.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #90 of 298 | Sensorsportal.comsensorsportal.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #91 of 298 | Siscon.nlsiscon.nl | Other observed source | 1.27% | 3 | 236 | 12 |
| #92 of 298 | Steinketool.comsteinketool.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #93 of 298 | Studyres.comstudyres.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #94 of 298 | Toolfusion.nettoolfusion.net | Other observed source | 1.27% | 3 | 236 | 12 |
| #95 of 298 | Warmup.comwarmup.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #96 of 298 | Weather-daily.comweather-daily.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #97 of 298 | Wikipediawikipedia.org | Academic and government source | 1.27% | 3 | 236 | 12 |
| #98 of 298 | Wiley.comwiley.com | Other observed source | 1.27% | 3 | 236 | 12 |
| #99 of 298 | Wpilib.orgwpilib.org | Other observed source | 1.27% | 3 | 236 | 12 |
| #100 of 298 | Ahgiken.comahgiken.com | Other observed source | 0.85% | 2 | 236 | 12 |
Showing the first 100 rows from 298 observed domains.
Cite this
Machine Relations Index (MRI), Machine Relations Research — machinerelations.ai. Deep Tech & Hardware / Problem-first research: 298 observed source domains in the leaderboard, measured on 236 observed runs across 12 distinct run dates, 2026-05-10 to 2026-11-02. Release mri_score_v2.1+2026-11-02+f9aaeca0db15. https://machinerelations.ai/index/categories/deep-tech-hardware/problem_first. CC BY 4.0.Parrott, J. (2026). Deep Tech & Hardware / Problem-first research in the Machine Relations Index (Version mri_score_v2.1+2026-11-02+f9aaeca0db15) [Data set]. Machine Relations Research. https://machinerelations.ai/index/categories/deep-tech-hardware/problem_first https://doi.org/10.5281/zenodo.23652423@misc{parrott2026mrideeptechhardwareproblemfirst,
author = {Parrott, Jaxon},
title = {Deep Tech \& Hardware / Problem-first research in the Machine Relations Index},
year = {2026},
version = {mri\_score\_v2.1+2026-11-02+f9aaeca0db15},
publisher = {Machine Relations Research},
url = {https://machinerelations.ai/index/categories/deep-tech-hardware/problem_first},
doi = {10.5281/zenodo.23652423},
license = {CC-BY-4.0},
note = {Machine Relations Index (MRI), Machine Relations Research — machinerelations.ai}
}Release and boundary
What this segment measures
Published November 2, 2026. The observation window runs May 10, 2026 to November 2, 2026. Methodology v2.1.
MRI measures observed root-domain citations inside monitored prompts. Segment rates are conditional on this sample and do not claim recommendation quality, traffic, placement availability, or commercial performance.