Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Wikidata. What is it... (short)

No description
by

Adam Shorland

on 27 March 2014

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Wikidata. What is it... (short)

Wikidata is a free, collaborative, multilingual, structured knowledge base that can be read and edited by humans and machines alike.
https://www.wikidata.org
Terms
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
Entities, Items, Properties and Queries
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

Language Attributes
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
Claims and Statements
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")
Sitelinks
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
time to have a play!
The Basics
How is this all used?
http://tools.wmflabs.org/wikidata-analysis/map
Wikidata Map
http://goo.gl/oCQsmB
The Wiki Atlas
http://4thmain.github.io/projects/hacks/wiki-atlas.html
Geneawiki
https://toolserver.org/~magnus/ts2/geneawiki/
Useful Places
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
Community Overview
85 flagged bots
100~ administrators (sysops)
4 bureaucrats
2 oversighters
37+ task forces
database is 106.6GB (as of 08/01/13)

Getting used to Wikidata
Goto:
https://en.wikipedia.org/wiki/Special:UnconnectedPages

Find A Page!

Make an Item For It!
Serialized entity form
"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"
}
}
}
getentities
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
editentity
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"}}}
https://wikidata.org/wiki/Q7999857
15,000,000+
Full transcript