Sumit (Sumit)
User

Projects (9)

Today

  • Clear sailing ahead.

Tomorrow

  • Clear sailing ahead.

Wednesday

  • Clear sailing ahead.

User Details

User Since
Dec 16 2014, 4:23 PM (152 w, 6 d)
Availability
Available
IRC Nick
codezee
LDAP User
Sumit
MediaWiki User
Sumit.iitp

Recent Activity

Mon, Nov 6

Sumit moved T172321: Build mid-level WikiProject category training set from Active to Review on the Scoring-platform-team (Current) board.
Mon, Nov 6, 5:20 PM · Scoring-platform-team (Current)
Sumit added a comment to T172321: Build mid-level WikiProject category training set.

https://github.com/wiki-ai/drafttopic/pull/11

Mon, Nov 6, 5:08 PM · Scoring-platform-team (Current)

Sat, Nov 4

Sumit edited projects for T172321: Build mid-level WikiProject category training set, added: Scoring-platform-team (Current); removed Scoring-platform-team.
Sat, Nov 4, 10:12 AM · Scoring-platform-team (Current)
Sumit moved T179311: Generate mid-level WikiProject categories from Review to Active on the Scoring-platform-team (Current) board.
Sat, Nov 4, 10:11 AM · Scoring-platform-team (Current)

Fri, Nov 3

Sumit added a comment to T179592: Could use some more disk space on ores-misc-01.ores-staging.eqiad.wmflabs:/srv.

Could free up 2.2G more...

Fri, Nov 3, 4:33 PM · Scoring-platform-team
Sumit added a comment to T179592: Could use some more disk space on ores-misc-01.ores-staging.eqiad.wmflabs:/srv.

Removed 800MB of my stuff which included cached models and datasets.

Fri, Nov 3, 4:26 PM · Scoring-platform-team

Mon, Oct 30

Sumit moved T179311: Generate mid-level WikiProject categories from Active to Review on the Scoring-platform-team (Current) board.
Mon, Oct 30, 4:56 PM · Scoring-platform-team (Current)
Sumit edited projects for T179311: Generate mid-level WikiProject categories, added: Scoring-platform-team (Current); removed Scoring-platform-team.
Mon, Oct 30, 4:56 PM · Scoring-platform-team (Current)
Sumit added a comment to T179311: Generate mid-level WikiProject categories.

https://github.com/wiki-ai/drafttopic/pull/5

Mon, Oct 30, 4:55 PM · Scoring-platform-team (Current)
Sumit created T179311: Generate mid-level WikiProject categories.
Mon, Oct 30, 4:55 PM · Scoring-platform-team (Current)
Sumit added a comment to T172321: Build mid-level WikiProject category training set.
Mon, Oct 30, 4:49 PM · Scoring-platform-team (Current)
Sumit closed T172325: Efficient method for mapping a WikiProject template to the WikiProject Directory as Resolved.
Mon, Oct 30, 4:48 PM · Scoring-platform-team
Sumit closed T172325: Efficient method for mapping a WikiProject template to the WikiProject Directory, a subtask of T172321: Build mid-level WikiProject category training set, as Resolved.
Mon, Oct 30, 4:48 PM · Scoring-platform-team (Current)

Oct 16 2017

Sumit closed T172326: Create machine-readable version of the WikiProject Directory as Resolved.
Oct 16 2017, 7:31 PM · Research Ideas, Scoring-platform-team
Sumit closed T172326: Create machine-readable version of the WikiProject Directory, a subtask of T172325: Efficient method for mapping a WikiProject template to the WikiProject Directory, as Resolved.
Oct 16 2017, 7:31 PM · Scoring-platform-team
Sumit closed T175037: Publish Machine-Readable WikiProjects Dataset as Resolved.
Oct 16 2017, 7:31 PM · Scoring-platform-team (Current), Research Ideas, Scoring-platform-team
Sumit closed T175037: Publish Machine-Readable WikiProjects Dataset, a subtask of T172326: Create machine-readable version of the WikiProject Directory, as Resolved.
Oct 16 2017, 7:31 PM · Research Ideas, Scoring-platform-team
Sumit added a comment to T175037: Publish Machine-Readable WikiProjects Dataset.

Published on ORES account of figshare.

Oct 16 2017, 7:30 PM · Scoring-platform-team (Current), Research Ideas, Scoring-platform-team

Oct 7 2017

Sumit added a comment to T172325: Efficient method for mapping a WikiProject template to the WikiProject Directory.

https://github.com/wiki-ai/drafttopic/pull/4

Oct 7 2017, 8:13 PM · Scoring-platform-team

Oct 6 2017

D3r1ck01 awarded T143490: Endterm evaluation for "Automated Testing and Integration of IFTTT support to Wikidata" a Mountain of Wealth token.
Oct 6 2017, 2:59 PM · Google-Summer-of-Code (2016), Wikidata

Sep 25 2017

Sumit updated the task description for T172321: Build mid-level WikiProject category training set.
Sep 25 2017, 2:59 PM · Scoring-platform-team (Current)
Sumit updated the task description for T172326: Create machine-readable version of the WikiProject Directory.
Sep 25 2017, 2:51 PM · Research Ideas, Scoring-platform-team

Sep 20 2017

Qgil awarded T164525: Weekly reports of GSoC17/Outreachy14 projects (tracking) a Yellow Medal token.
Sep 20 2017, 9:56 AM · Outreachy (Round-14), Google-Summer-of-Code (2017)

Sep 6 2017

Sumit updated the task description for T172326: Create machine-readable version of the WikiProject Directory.
Sep 6 2017, 8:05 PM · Research Ideas, Scoring-platform-team
Sumit added a comment to T172326: Create machine-readable version of the WikiProject Directory.

PR for tests - https://github.com/wiki-ai/drafttopic/pull/1

Sep 6 2017, 8:05 PM · Research Ideas, Scoring-platform-team
Sumit removed a project from T172326: Create machine-readable version of the WikiProject Directory: Scoring-platform-team (Current).
Sep 6 2017, 5:51 PM · Research Ideas, Scoring-platform-team
Sumit edited projects for T173107: New Page Patrol - Number of users, added: Scoring-platform-team; removed Scoring-platform-team (Current).
Sep 6 2017, 5:21 PM · Scoring-platform-team, English-Wikipedia-New-Pages-Patrol
Sumit edited projects for T173210: New Pages patrol - Number of re-reviews, added: Scoring-platform-team; removed Scoring-platform-team (Current).
Sep 6 2017, 5:21 PM · Scoring-platform-team, English-Wikipedia-New-Pages-Patrol

Sep 5 2017

Halfak awarded T172326: Create machine-readable version of the WikiProject Directory a Like token.
Sep 5 2017, 4:48 PM · Research Ideas, Scoring-platform-team
Sumit created T175037: Publish Machine-Readable WikiProjects Dataset.
Sep 5 2017, 4:06 PM · Scoring-platform-team (Current), Research Ideas, Scoring-platform-team
Sumit added a comment to T172326: Create machine-readable version of the WikiProject Directory.
Sep 5 2017, 3:15 PM · Research Ideas, Scoring-platform-team

Aug 28 2017

Sumit added a project to T172326: Create machine-readable version of the WikiProject Directory: Scoring-platform-team (Current).
Aug 28 2017, 3:42 PM · Research Ideas, Scoring-platform-team
Sumit merged T172720: Data and Shell access related to Scoring Platform project on drafts and page reviews into T172719: Get Sumit access to deleted page data for quality modeling.
Aug 28 2017, 3:39 PM · draftquality-modeling, articlequality-modeling, artificial-intelligence, Scoring-platform-team (Current)
Sumit merged task T172720: Data and Shell access related to Scoring Platform project on drafts and page reviews into T172719: Get Sumit access to deleted page data for quality modeling.
Aug 28 2017, 3:39 PM · WMF-NDA-Requests, Scoring-platform-team (Current)

Aug 26 2017

Sumit claimed T172326: Create machine-readable version of the WikiProject Directory.
Aug 26 2017, 6:02 AM · Research Ideas, Scoring-platform-team

Aug 21 2017

Sumit moved T172726: Project around page reviewing and drafts from Active to Review on the Scoring-platform-team (Current) board.
Aug 21 2017, 3:09 PM · draftquality-modeling, artificial-intelligence, Scoring-platform-team (Current)

Aug 20 2017

Sumit added a comment to T172726: Project around page reviewing and drafts.

https://meta.wikimedia.org/wiki/Research:Automatic_new_article_topics_suggestion

Aug 20 2017, 4:40 PM · draftquality-modeling, artificial-intelligence, Scoring-platform-team (Current)

Aug 18 2017

Sumit added a comment to T172326: Create machine-readable version of the WikiProject Directory.

might be useful if we sync the machine readable format from here, probably using a cron script - https://en.wikipedia.org/wiki/Wikipedia:WikiProject_Directory/All ( Updated by the reports bot )

Aug 18 2017, 8:09 PM · Research Ideas, Scoring-platform-team
Sumit added a comment to T123327: Train/test draft topic model (new article routing AI).

Also from eranroz, a bot tagging new articles with wikiprojects or lists using a rule-based system - https://en.wikipedia.org/wiki/User:AlexNewArtBot

Aug 18 2017, 7:50 PM · Research Ideas, artificial-intelligence, Scoring-platform-team

Aug 12 2017

Sumit moved T173107: New Page Patrol - Number of users from Done to Review on the Scoring-platform-team (Current) board.
Aug 12 2017, 6:42 PM · Scoring-platform-team, English-Wikipedia-New-Pages-Patrol
Sumit moved T173210: New Pages patrol - Number of re-reviews from Done to Review on the Scoring-platform-team (Current) board.
Aug 12 2017, 6:42 PM · Scoring-platform-team, English-Wikipedia-New-Pages-Patrol
Sumit updated the task description for T173107: New Page Patrol - Number of users.
Aug 12 2017, 6:34 PM · Scoring-platform-team, English-Wikipedia-New-Pages-Patrol
Sumit updated the task description for T173210: New Pages patrol - Number of re-reviews.
Aug 12 2017, 6:34 PM · Scoring-platform-team, English-Wikipedia-New-Pages-Patrol
Sumit created T173210: New Pages patrol - Number of re-reviews.
Aug 12 2017, 6:31 PM · Scoring-platform-team, English-Wikipedia-New-Pages-Patrol

Aug 11 2017

Sumit created T173107: New Page Patrol - Number of users.
Aug 11 2017, 4:39 PM · Scoring-platform-team, English-Wikipedia-New-Pages-Patrol

Aug 7 2017

Sumit updated the task description for T172726: Project around page reviewing and drafts.
Aug 7 2017, 7:56 PM · draftquality-modeling, artificial-intelligence, Scoring-platform-team (Current)
Sumit updated the task description for T172720: Data and Shell access related to Scoring Platform project on drafts and page reviews.
Aug 7 2017, 7:14 PM · WMF-NDA-Requests, Scoring-platform-team (Current)
Sumit updated the task description for T172726: Project around page reviewing and drafts.
Aug 7 2017, 7:11 PM · draftquality-modeling, artificial-intelligence, Scoring-platform-team (Current)
Sumit added a project to T172726: Project around page reviewing and drafts: draftquality-modeling.
Aug 7 2017, 7:10 PM · draftquality-modeling, artificial-intelligence, Scoring-platform-team (Current)
Sumit created T172726: Project around page reviewing and drafts.
Aug 7 2017, 7:10 PM · draftquality-modeling, artificial-intelligence, Scoring-platform-team (Current)
Sumit renamed T172720: Data and Shell access related to Scoring Platform project on drafts and page reviews from Ops-Access-Requests - shell access related to Scoring Platform project to Data and Shell access related to Scoring Platform project on drafts and page reviews.
Aug 7 2017, 6:36 PM · WMF-NDA-Requests, Scoring-platform-team (Current)
Sumit added a subtask for T172719: Get Sumit access to deleted page data for quality modeling: T172720: Data and Shell access related to Scoring Platform project on drafts and page reviews.
Aug 7 2017, 6:35 PM · draftquality-modeling, articlequality-modeling, artificial-intelligence, Scoring-platform-team (Current)
Sumit added a parent task for T172720: Data and Shell access related to Scoring Platform project on drafts and page reviews: T172719: Get Sumit access to deleted page data for quality modeling.
Aug 7 2017, 6:35 PM · WMF-NDA-Requests, Scoring-platform-team (Current)
Sumit created T172720: Data and Shell access related to Scoring Platform project on drafts and page reviews.
Aug 7 2017, 6:35 PM · WMF-NDA-Requests, Scoring-platform-team (Current)
Sumit moved T170177: Test draftquality sentiment feature on Editquality from Active to Done on the Scoring-platform-team (Current) board.
Aug 7 2017, 3:45 AM · draftquality-modeling, artificial-intelligence, Scoring-platform-team (Current)
Sumit added a comment to T170177: Test draftquality sentiment feature on Editquality.

After taking Adam's suggestions into account and scoring the sentiment of edits, I still wasn't able to get a decent signal. The 1% rise in accuracy is due to something else, and I think sentiment on edits is not a very good feature. To validate my conclusion further, I took 1000 samples from enwiki, half damaging and half not damaging and here's the result:

Aug 7 2017, 3:45 AM · draftquality-modeling, artificial-intelligence, Scoring-platform-team (Current)

Aug 5 2017

Sumit merged T171486: Blog about ORES regex-pocalypse into T172200: Blog post about the ORES regex-pocalypse.
Aug 5 2017, 2:47 PM · Wikimedia-Incident, ORES, Scoring-platform-team (Current)
Sumit merged task T171486: Blog about ORES regex-pocalypse into T172200: Blog post about the ORES regex-pocalypse.
Aug 5 2017, 2:47 PM · ORES, Scoring-platform-team

Aug 4 2017

GitHub <noreply@github.com> committed rODQ96b6d904b932: Merge 13ebd377fdf9e1c16be9ead4f8497b89ff509674 into… (authored by Sumit).
Merge 13ebd377fdf9e1c16be9ead4f8497b89ff509674 into…
Aug 4 2017, 6:16 PM
Sumit committed rODQ13ebd377fdf9: Address review comments in https://github.com/wiki-ai/draftquality/pull/9 (authored by Sumit).
Address review comments in https://github.com/wiki-ai/draftquality/pull/9
Aug 4 2017, 6:16 PM

Jul 24 2017

Sumit added a comment to T170177: Test draftquality sentiment feature on Editquality.

Goodfaith model shows a slight fall in accuracy:

Jul 24 2017, 1:48 PM · draftquality-modeling, artificial-intelligence, Scoring-platform-team (Current)
Sumit added a comment to T170177: Test draftquality sentiment feature on Editquality.

Enwiki damaging gives slight rise in accuracy:

Jul 24 2017, 1:45 PM · draftquality-modeling, artificial-intelligence, Scoring-platform-team (Current)

Jul 20 2017

GitHub <noreply@github.com> committed rOEQ957951e01838: Merge 3c11d1a779feff020a6142b9545ce816de6d91f1 into… (authored by Sumit).
Merge 3c11d1a779feff020a6142b9545ce816de6d91f1 into…
Jul 20 2017, 3:45 PM
Sumit committed rOEQ3c11d1a779fe: Add label param for enwiki goodfaith in Makefile (authored by Sumit).
Add label param for enwiki goodfaith in Makefile
Jul 20 2017, 3:45 PM

Jul 17 2017

Sumit closed T170069: Add ORES technical documentation as Resolved.
Jul 17 2017, 3:20 PM · Documentation, Scoring-platform-team (Current)
Sumit closed T170069: Add ORES technical documentation, a subtask of T148974: [Epic] Clean up ORES service documentation, as Resolved.
Jul 17 2017, 3:20 PM · Scoring-platform-team (Current), Epic, Documentation, ORES
Sumit moved T170069: Add ORES technical documentation from Active to Epics on the Scoring-platform-team (Current) board.
Jul 17 2017, 3:20 PM · Documentation, Scoring-platform-team (Current)
Sumit added a comment to T170069: Add ORES technical documentation.

The above page is complete in documentation of technical details and is linked from https://www.mediawiki.org/wiki/ORES hence closing.

Jul 17 2017, 3:20 PM · Documentation, Scoring-platform-team (Current)

Jul 16 2017

Sumit closed T163009: Train/test damaging & goodfaith models for Albanian Wikipedia as Resolved.
Jul 16 2017, 5:10 AM · Scoring-platform-team (Current), artificial-intelligence, editquality-modeling
Sumit closed T163009: Train/test damaging & goodfaith models for Albanian Wikipedia, a subtask of T130213: [Epic] Edit quality models (damaging/goodfaith), as Resolved.
Jul 16 2017, 5:10 AM · artificial-intelligence, Epic, editquality-modeling, Scoring-platform-team (Current)
Sumit moved T163009: Train/test damaging & goodfaith models for Albanian Wikipedia from Active to Done on the Scoring-platform-team (Current) board.
Jul 16 2017, 5:10 AM · Scoring-platform-team (Current), artificial-intelligence, editquality-modeling

Jul 14 2017

GitHub <noreply@github.com> committed rOEQ0e41603a5bdd: Merge 0247b751f0e47ba3bfb62ed65999783fd4bb2f86 into… (authored by Sumit).
Merge 0247b751f0e47ba3bfb62ed65999783fd4bb2f86 into…
Jul 14 2017, 7:53 PM

Jul 13 2017

Sumit added a project to T170177: Test draftquality sentiment feature on Editquality: draftquality-modeling.
Jul 13 2017, 3:38 PM · draftquality-modeling, artificial-intelligence, Scoring-platform-team (Current)

Jul 12 2017

Sumit moved T170205: Add test to ensure timeout of functions taking too long from Review to Done on the Scoring-platform-team (Current) board.
Jul 12 2017, 5:18 PM · Scoring-platform-team (Current)

Jul 10 2017

GitHub <noreply@github.com> committed rORESc482c430b979: Merge 6f79568e9f2cf50df4bc73c35f29e2b658bc00fb into… (authored by Sumit).
Merge 6f79568e9f2cf50df4bc73c35f29e2b658bc00fb into…
Jul 10 2017, 9:23 PM
Sumit committed rORES6f79568e9f2c: Remove flake8 errors (authored by Sumit).
Remove flake8 errors
Jul 10 2017, 9:23 PM
GitHub <noreply@github.com> committed rORESbe70a99d44eb: Merge a7550e723751c2319a0c5d4a3b9ae78a01b5afbb into… (authored by Sumit).
Merge a7550e723751c2319a0c5d4a3b9ae78a01b5afbb into…
Jul 10 2017, 9:11 PM
Sumit committed rORESa7550e723751: Add Timeout test for a function taking a long time (authored by Sumit).
Add Timeout test for a function taking a long time
Jul 10 2017, 9:11 PM
Sumit added a subtask for T168965: Why don't timeouts work during long regular expression matching?: T170205: Add test to ensure timeout of functions taking too long.
Jul 10 2017, 9:11 PM · revscoring, ORES, artificial-intelligence, Scoring-platform-team (Current)
Sumit added a parent task for T170205: Add test to ensure timeout of functions taking too long: T168965: Why don't timeouts work during long regular expression matching?.
Jul 10 2017, 9:11 PM · Scoring-platform-team (Current)
Sumit added a comment to T170205: Add test to ensure timeout of functions taking too long.

https://github.com/wiki-ai/ores/pull/219

Jul 10 2017, 9:10 PM · Scoring-platform-team (Current)
Sumit created T170205: Add test to ensure timeout of functions taking too long.
Jul 10 2017, 9:10 PM · Scoring-platform-team (Current)
Sumit added a comment to T168369: Add language support for Albanian.

https://github.com/wiki-ai/revscoring/pull/335

Jul 10 2017, 7:18 PM · Scoring-platform-team (Current), Bad-Words-Detection-System, revscoring, artificial-intelligence
Sumit added a comment to T168369: Add language support for Albanian.

Hi, we're done, please see here https://www.mediawiki.org/wiki/Research:Revision_scoring_as_a_service/Word_lists/sq

Let us know if you seen any problems.

Thanks!

Jul 10 2017, 7:18 PM · Scoring-platform-team (Current), Bad-Words-Detection-System, revscoring, artificial-intelligence
Sumit created T170177: Test draftquality sentiment feature on Editquality.
Jul 10 2017, 5:38 PM · draftquality-modeling, artificial-intelligence, Scoring-platform-team (Current)

Jul 9 2017

Sumit created T170069: Add ORES technical documentation.
Jul 9 2017, 6:48 AM · Documentation, Scoring-platform-team (Current)

Jul 8 2017

GitHub <noreply@github.com> committed rODQf9dfb7665ca5: Merge 2e24b1e39f51207ba9c930131460dceb31b5e592 into… (authored by Sumit).
Merge 2e24b1e39f51207ba9c930131460dceb31b5e592 into…
Jul 8 2017, 8:50 AM
Sumit committed rODQ3c47adb653e8: Take most common word sense for polarity score (authored by Sumit).
Take most common word sense for polarity score
Jul 8 2017, 8:50 AM
Sumit committed rODQd568fe6b85bb: (WIP) Add feature for polarity using SentiWordnet (authored by Sumit).
(WIP) Add feature for polarity using SentiWordnet
Jul 8 2017, 8:50 AM
Sumit committed rODQ2e24b1e39f51: ADD SentiWordnet requirement to README (authored by Sumit).
ADD SentiWordnet requirement to README
Jul 8 2017, 8:50 AM
Sumit added a comment to T167305: Experiment with Sentiment score feature for draftquality.

New PR - https://github.com/wiki-ai/draftquality/pull/9

Jul 8 2017, 8:34 AM · draftquality-modeling, artificial-intelligence, Scoring-platform-team (Current)

Jul 7 2017

GitHub <noreply@github.com> committed rOEQb0d94fc6c5ec: Merge 0247b751f0e47ba3bfb62ed65999783fd4bb2f86 into… (authored by Sumit).
Merge 0247b751f0e47ba3bfb62ed65999783fd4bb2f86 into…
Jul 7 2017, 7:35 PM
Sumit moved T156503: Build damaging/goodfaith models for Romanian Wikipedia from Review to Done on the Scoring-platform-team (Current) board.
Jul 7 2017, 7:27 PM · Scoring-platform-team (Current), artificial-intelligence, revscoring, editquality-modeling

Jul 3 2017

GitHub <noreply@github.com> committed rODQ3086fdda8d50: Merge 5f8b47e72814e1deb54710c124b1e4c913dc1b46 into… (authored by Sumit).
Merge 5f8b47e72814e1deb54710c124b1e4c913dc1b46 into…
Jul 3 2017, 6:04 PM
Sumit moved T167305: Experiment with Sentiment score feature for draftquality from Review to Active on the Scoring-platform-team (Current) board.
Jul 3 2017, 3:52 PM · draftquality-modeling, artificial-intelligence, Scoring-platform-team (Current)

Jul 1 2017

Sumit added a comment to T168369: Add language support for Albanian.

Left the following note on their talk pages:

Hi
Can you goto https://phabricator.wikimedia.org/T168369 and see if you can help in segregating a list of about 250 words in Albanian into badwords and informal words. We need these lists to help build damaging and goodfaith models for Albanian Wikipedia. A good way to do that would be to edit the https://meta.wikimedia.org/wiki/Research:Revision_scoring_as_a_service/Word_lists/sq and simply copy the generated list to badwords and informal words and remove the words that do not fall in the respective category. Your help is much appreciated! Let me know or leave a comment on the task itself in case of any issue.-Thanks!

Jul 1 2017, 2:05 PM · Scoring-platform-team (Current), Bad-Words-Detection-System, revscoring, artificial-intelligence
Sumit added a comment to T168369: Add language support for Albanian.

Hi @Margott @Liridon @Arianit Can you please goto https://meta.wikimedia.org/wiki/Research:Revision_scoring_as_a_service/Word_lists/sq and segregate the generated list words into badwords and informal words. Refer to task description for badwords and informal words definition.

Jul 1 2017, 1:52 PM · Scoring-platform-team (Current), Bad-Words-Detection-System, revscoring, artificial-intelligence

Jun 29 2017

GitHub <noreply@github.com> committed rODQ94090c738a39: Merge 5f8b47e72814e1deb54710c124b1e4c913dc1b46 into… (authored by Sumit).
Merge 5f8b47e72814e1deb54710c124b1e4c913dc1b46 into…
Jun 29 2017, 12:26 AM

Jun 28 2017

GitHub <noreply@github.com> committed rODQe1414c7f1d22: Merge 5f8b47e72814e1deb54710c124b1e4c913dc1b46 into… (authored by Sumit).
Merge 5f8b47e72814e1deb54710c124b1e4c913dc1b46 into…
Jun 28 2017, 5:53 PM

Jun 27 2017

Sumit moved T156503: Build damaging/goodfaith models for Romanian Wikipedia from Active to Review on the Scoring-platform-team (Current) board.
Jun 27 2017, 7:01 PM · Scoring-platform-team (Current), artificial-intelligence, revscoring, editquality-modeling