Introducing 

Prezi AI.

Your new presentation assistant.

Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.

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  • 85 flagged bots
  • 100~ administrators (sysops)
  • 4 bureaucrats
  • 2 oversighters
  • 37+ task forces
  • database is 106.6GB (as of 08/01/13)

"Q2": {

"id": "Q2",

"type": "item",

"aliases": {

"en": [

{

"language": "en",

"value": "alias1"

},

{

"language": "en",

"value": "alias2"

}

]

},

"labels": {

"en": {

"language": "en",

"value": "I am a label"

}

},

"descriptions": {

"en": {

"language": "en",

"value": "I am a description!"

}

},

"claims": {

"P5": [

{

"id": "Q2$0457f6a4-45b3-46db-cecf-1933df515bb7",

"mainsnak": {

"snaktype": "value",

"property": "P5",

"datavalue": {

"value": {

"time": "+00000002013-06-12T00:00:00Z",

"timezone": 0,

"before": 0,

"after": 0,

"precision": 11,

"calendarmodel": "http://www.wikidata.org/entity/Q1985727"

},

"type": "time"

}

},

"type": "statement",

"rank": "normal"

}

]

},

"sitelinks": {

"enwiki": {

"site": "enwiki",

"title": "User:Addshore"

}

}

}

The Basics

https://wikidata.org/wiki/Q7999857

Wikidata is a free, collaborative, multilingual, structured knowledge base that can be read and edited by humans and machines alike.

Terms

https://www.wikidata.org

Entities, Items, Properties and Queries

  • Namespaces - Items (main space), properties (Property:) , queries (Query:)

  • Entity - Every entity is identified by a unique entity Id such a Q42 or P10
  • It is also identified by a unique combination of label and description per language

  • Item - A page that represents a real-life topic, concept, or subject

  • Property - The descriptor for a data value using a data type

Language Attributes

  • Language Attributes - Language specific labels, descriptions and aliases that are assigned to entities

  • Label - Primary means to distinguish entries

  • Description - Provides context for the label

  • Aliases - Alternate names that can be used for lookup the same way as labels

Claims and Statements

  • Value - (or datavalues) the information pieces embedded in each claim
  • NoValue - a marker when there is no known value
  • UnknownValue - a marker when there is some value but the exact value is not known

  • Qualifier - part of the claim that says something about the specific claim, often in a descriptive way

  • Rank - a quality factor used for simple selection/filtering in cases where there are many statements for a given property

  • Reference - describes the origin of a statement in Wikidata

Sitelinks

  • Sitelink - an identification of a linked page or article on another Wikimedia site such as a Wikipedia language version

  • Consists of a site identifier (e.g. "dewiki") and a title (e.g. "Berlin")

Community Overview

How is this all used?

Useful Places

15,000,000+

Wikidata Map

http://tools.wmflabs.org/wikidata-analysis/map

http://goo.gl/oCQsmB

The Wiki Atlas

http://4thmain.github.io/projects/hacks/wiki-atlas.html

Geneawiki

https://toolserver.org/~magnus/ts2/geneawiki/

Learn about the basics of Wikidata:

Wikidata:Introduction

Find answer to frequently asked questions:

Wikidata:FAQ

Chat with other community members:

Wikidata:Project chat

Read the latest news around Wikidata:

Wikidata:News

Get a weekly summary of what is happening:

Wikidata:Status updates

Find out about gadgets and tools:

Wikidata:Tools

editentity

Serialized entity form

getentities

action=wbeditentity *

API module to create a single new Wikibase entity and modify it with serialised information.

  • id
  • site
  • title
  • baserevid
  • summary
  • token
  • bot
  • data
  • clear
  • new

Example

  • api.php?action=wbeditentity&new=item&data={"labels":{"de":{"language":"de","value":"Berlin"},"en":{"language":"en","value":"Berlin"}}}

action=wbgetentities *

API module to get the data for multiple Wikibase entities.

  • ids
  • sites
  • titles
  • props
  • sort
  • dir
  • languages
  • languagefallback
  • normalize

Examples

  • api.php?action=wbgetentities&ids=Q42
  • api.php?action=wbgetentities&ids=Q42|P17
  • api.php?action=wbgetentities&sites=enwiki&titles=Berlin

Getting used to Wikidata

Goto:

https://en.wikipedia.org/wiki/Special:UnconnectedPages

Find A Page!

Make an Item For It!

time to have a play!

  • Head to the test site http://test.wikidata.org/
  • Create some items http://test.wikidata.org/wiki/Special:NewItem
  • Create some properties http://test.wikidata.org/wiki/Special:NewProperty
  • Play with language attributes
  • Play with claims and statements

test.wikidata properties:

CommonsName (P6), instance of (P7), Coordinate (P10), Date of birth (P18), URL (P20)

also see the wikidata sandbox! https://www.wikidata.org/wiki/Q4115189

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