Dušan Kreheľ

About me

Name: Dušan Kreheľ
Born: 1991, Prešov, Czecho-Slovakia
Life: Prešov Region
Email: dusankrehel@gmail.com
Language (native): Slovak
Language (understand): Czech
Foreign languages: German, English, Croatian
Social networks:

• Dušan Kreheľ (Academia.edu)

Bot

• User:Dušan Kreheľ (bot)

Articles

• Signpost statistics from 2005 to 2022
  • I created the data statistic analyze.
• Fintice (pomenovanie)
  • The etymology of the name village Fintice.
• Fintice:
  • About the village Fintice (Slovakia).
  • Almost all the content is created by me.
• Flóra Vyšný Slavkov

Exports

• Wikipedia projects (grouped by the local project):
  • User (daily) pageviews: 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016 & 2015-07to12.
  • TOP 2000 user pageviews: 2023.

Technologies

d0cmf

d0cmf – shorted Dušan's zero matrix format

Practical:

• The format for the export of pageviews statitics.
• The export of user pageview statistics:
• group by:
  • local wikipedia,
  • year,
• date: 2015-07 to 2023,
• public: https://archive.org/search?query=subject%3A%22d0cmf%22

Practical comparison (2023-01 to 2023-06)

Original		d0cmf
RAW	bz2	RAW	bz2
91531991545B	16923192176B	8272043931B	1415546226B
91.5 GB	16.9 GB	8.2 GB	1.4 GB
		9%	8%

Notice: In a practical comparison, in d0cmf, pagevies are divided according to local wikipedia and thus their size is calculated. Sources: [1] [2].

A bonus for the community (if implemented):

• pageview statistic:
  • Smaller compression size of files.
  • When saving – support for any long time interval.
  • Store statistics divided according to local Wikipedia.

Revision databases

• Otherwise, the storage of site data.
• Revision line encoding: From all revision lines is creating the line index and the revision are then the group of the lines indexes. The line index of revision is stored in the binary format.
• More: https://archive.org/details/revision-database

Demonstration on skwiki-20240101-pages-meta-history.xml.bz2

	Now	Concept
Database	~19GB	1 to 5GB (5% to 26%)
Export (bz2)	~2.8GB	~1.1GB (39%)

Wiki page language

Idea: to standardize the Wiki page language and to have the convertor wiki ⇒ HTML with DOM and DOM manipulation API.

• Benefits:
  • Determining the boundaries where the bot and the user correspond,
  • better tools for bots
  • one standard, one change tracking document,
  • the support of MediaWiki table in the three part software.

Test implementations (2022-12-09)

0.000333s	"dwiki"
0.000275s	"dwiki editor"
0.016512s	Wikimedia parser
1.260279s	Parsoid

More:

• [Wikitech-l] dwiki: a converter from dwiki to HTML.
• en:User:Dušan Kreheľ/Signpost draft:My idea about wikipage parser.