Difference between revisions of "Twarql"
From Knoesis wiki
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== Twarql API == | == Twarql API == | ||
| − | + | === REST Endpoints === | |
| + | Summary: | ||
| + | * URL scheme: http://<base-url>/<operation>/?<parameter>=<value>&...&output=<output format> | ||
| + | * Base URL: http://knoesis1.wright.edu/twarql | ||
| + | * Operations: search, register, stream, query | ||
| + | * Output formats: twitter-json, sparql-json, entities | ||
| + | |||
| + | Parameters: | ||
* http://knoesis1.wright.edu/twarql'''/search'''?keyword=''k1,...,kn''&output=<output type> | * http://knoesis1.wright.edu/twarql'''/search'''?keyword=''k1,...,kn''&output=<output type> | ||
| − | ** output: tweets, entities, triples | + | ** '''input''': keywords, output type (twitter-json, entities, sparql-json) |
| + | ** '''output''': tweets, entities, triples | ||
* http://knoesis1.wright.edu/twarql'''/search'''?keyword=''k1,...,kn''&output=<output type> | * http://knoesis1.wright.edu/twarql'''/search'''?keyword=''k1,...,kn''&output=<output type> | ||
| Line 51: | Line 59: | ||
* http://knoesis1.wright.edu/twarql'''/stream'''?keyword=''k1,...,kn''&output=<output type> | * http://knoesis1.wright.edu/twarql'''/stream'''?keyword=''k1,...,kn''&output=<output type> | ||
| + | |||
| + | === Output Formats === | ||
| + | |||
| + | We also provide output according to the format presented on the [http://groups.google.com/group/twitter-api-announce/browse_thread/thread/9b869a9fe4d4252e?hl=en twitter-api-announce message]. | ||
| + | |||
| + | <code> | ||
| + | { | ||
| + | "text" : "hey @raffi tell @noradio to check out http://dev.twitter.com #hot", | ||
| + | ... | ||
| + | "entities" : { | ||
| + | "user_mentions" : [ | ||
| + | { | ||
| + | "id" : 8285392, | ||
| + | "screen_name" : "raffi", | ||
| + | "indices" : [4, 9] | ||
| + | }, | ||
| + | { | ||
| + | "id" : 3191321, | ||
| + | "screen_name" : "noradio", | ||
| + | "indices" : [16, 23] | ||
| + | } | ||
| + | ], | ||
| + | "urls" : [ | ||
| + | { "url" : "http://dev.twitter.com", | ||
| + | "indices" : [38, 64] | ||
| + | }, | ||
| + | ], | ||
| + | "hashtags" : [ | ||
| + | { "text" : "#hot", | ||
| + | "indices" : [66, 69] | ||
| + | "url" : "http://search.twitter.com/search?q=%23hot" | ||
| + | } | ||
| + | ] | ||
| + | } | ||
| + | ... | ||
| + | } | ||
| + | |||
| + | </code> | ||
Revision as of 00:09, 17 May 2010
Twarql: Twitter Feeds through SPARQL
Contents
[hide]Introduction
Our approach encompasses the following steps:
- extract content (entity mentions, hashtags and URLs) from microposts;
- encode content in a structured format (RDF) using shared vocabularies (FOAF, SIOC, MOAT, etc.);
- enable structured querying of microposts (SPARQL);
- enable subscription to a stream of microposts that match a given query (Concept Feeds);
- enable scalable real-time delivery of streaming data (SparqlPuSH).
Architecture
- See the workflow between the components of the architecture
Tweet Annotation
- extract content (entity mentions, hashtags and URLs) from microposts;
- encode content in a structured format (RDF) using shared vocabularies (FOAF, SIOC, MOAT, etc.);
Concept Feeds
- enable structured querying of microposts (SPARQL);
- enable subscription to a stream of microposts that match a given query;
SPARQLPuSH
- More about the SPARQL Push implementation: Introducing sparqlPuSH, open source implementation
Twarql API
REST Endpoints
Summary:
- URL scheme: http://<base-url>/<operation>/?<parameter>=<value>&...&output=<output format>
- Base URL: http://knoesis1.wright.edu/twarql
- Operations: search, register, stream, query
- Output formats: twitter-json, sparql-json, entities
Parameters:
- http://knoesis1.wright.edu/twarql/search?keyword=k1,...,kn&output=<output type>
- input: keywords, output type (twitter-json, entities, sparql-json)
- output: tweets, entities, triples
- http://knoesis1.wright.edu/twarql/search?keyword=k1,...,kn&output=<output type>
- D2R
- http://knoesis1.wright.edu/twarql/register?query=<sparql query>&id=<concept feed id>
- #id
- http://knoesis1.wright.edu/twarql/stream?keyword=k1,...,kn&output=<output type>
Output Formats
We also provide output according to the format presented on the twitter-api-announce message.
{
"text" : "hey @raffi tell @noradio to check out http://dev.twitter.com #hot",
...
"entities" : {
"user_mentions" : [
{
"id" : 8285392,
"screen_name" : "raffi",
"indices" : [4, 9]
},
{
"id" : 3191321,
"screen_name" : "noradio",
"indices" : [16, 23]
}
],
"urls" : [
{ "url" : "http://dev.twitter.com",
"indices" : [38, 64]
},
],
"hashtags" : [
{ "text" : "#hot",
"indices" : [66, 69]
"url" : "http://search.twitter.com/search?q=%23hot"
}
]
}
...
}
