I'm having a hard time trying to get data about a person from Freebase using his social link - by a MQL query.
How could this be done?
Something like:
https://www.googleapis.com/freebase/v1/mqlread?query={
"*":[{}],
"/common/topic/social_media_presence":[{
"value":"http://twitter.com/JustinBieber"
}]
}
Those links are really stored as keys and the links are generated from templates with they key plugged in. You can see all the keys here: https://www.freebase.com/m/06w2sn5?keys=
A modified version of your query would be:
[{
"key": [{
"namespace": {
"id": "/authority/twitter"
},
"value": "JustinBieber"
}],
"*": [{}]
}]
You can do the same thing with other namespaces like /authority/facebook or /authority/musicbrainz as well as the various language wikipedias e.g. /wikipedia/en
I'm not sure how complete the coverage or currency of the social media info is though...
Related
I’m trying to query for wine producers and their websites on Freebase with this query:
[{
"/common/topic/official_website": [],
"id": null,
"name": null,
"type": "/wine/wine_producer"
}]
Here it is in the Freebase query editor:
http://www.freebase.com/query?lang=%2Flang%2Fen&q=%5B%7B%22%2Fcommon%2Ftopic%2Fofficial_website%22%3A%5B%5D%2C%22id%22%3Anull%2C%22name%22%3Anull%2C%22type%22%3A%22%2Fwine%2Fwine_producer%22%7D%5D
Why do none of the vineyards have official websites? That seems like a unlikely coincidence. Also, none of the other properties of included types have non-null values.
How do I tell Freebase to obtain the properties of included types in addition to the ones on the wine producer type itself?
False premise. 185 of them do have values for the official web site:
[{
"/common/topic/official_website": [{
"value": null
}],
"id": null,
"name": null,
"type": "/wine/wine_producer",
"return": "count"
}]
You need to forget about the notion of included types for anything related to MQL querying. MQL doesn't know and doesn't care.
I have a couple of questions.
I have a MQL query that gets some movie information. The trimmed query looks like this.
[{
"id": "/en/a_beautiful_mind",
"name": null,
"type": "/film/film",
"/common/topic/article": [{
"id": null,
"optional": true,
"limit": 3
}]
}]
it works just fine, I can retrieve the ID but is there a way to also get the article text without having to run a separate text query?
Second is I am trying to figure out how to get the featured song performer. I can do this and get the songs name.
[{
"id": "/en/a_beautiful_mind",
"name": null,
"type": "/film/film",
"featured_song": [{
"name": null,
"optional": true
}],
}]
But cant seem to figure out how to get the songs performer. Is it possible?
thanks for the help
Scott
One simple way to get this type of information about a film is to use the Topic API like this:
https://www.googleapis.com/freebase/v1/topic/en/a_beautiful_mind?filter=suggest&filter=/film/film
This won't get the featured song artist though. At least not without an additional API call. To do that in MQL you just nest additional queries inside the featured song like this:
[{
"id": "/en/a_beautiful_mind",
"name": null,
"type": "/film/film",
"featured_song": [{
"name": null,
"/music/recording/artist": [{}],
"/film/film_featured_song/performed_by": [{}],
"optional": true
}]
}]
Note that I've added two separate properties one for the artist who originally recorded the song and one for the artist who performed it in the film. In this case, the second property is empty implying that the original recording was used. Since I'm mixing properties from different types I need to use the fully-qualified property names.
All Freebase types are documented in the graph so you can look up types like /music/recording and /film/film_featured_song to see how they are meant to be used.
I want to find out how Wenjin SU and Jimei University are related in Freebase. I have found out the Wenjin SU has a type /business/board_member/which has property/business/board_member/leader_of. How can I use this information in an Freebase MQL to extract the term or mid of Jimei University?
If you go to the Freebase page for Wenjin SU you see that he has the type /business/board_member/ and under that section it lists him as the /business/board_member/leader_of Jimei University
The first thing you should do is go to the Query Editor and create a skeleton MQL query for that relationship:
{
"id": "/m/0sxhm9v",
"name": null,
"/business/board_member/leader_of": [{}]
}
When you run this query you get the following result:
{
"result": {
"name": "Wenjin SU",
"/business/board_member/leader_of": [{
"name": null,
"type": [
"/organization/leadership"
],
"id": "/m/0sxhm9s"
}],
"id": "/m/0sxhm9v"
}
}
This is not quite what you were asking for. It's saying that he is the leader_of an un-named topic /m/0sxhm9s. Now, if you visit the Freebase page for that topic you'll see that its a mediator node that connects a person and their role to an organization for a specific date range. You'll also notice that Jimei University is listed as the /organization/leadership/organization on this page.
We can now add this mediated property to our MQL query to get the full relationship that you're looking for:
{
"id": "/m/0sxhm9v",
"name": null,
"/business/board_member/leader_of": [{
"/organization/leadership/organization": {
}
}]
}
If you're building an application that has a pre-determined set of relationships like this then you can use this process of exploring the Freebase data to build MQL queries for those relationships. If you're looking to find any arbitrary connection between any two entities in Freebase then you'll need to download the Freebase Data Dumps and run a shortest path algorithm over the entire graph.
I'm trying to retrieve the topic description for some film ("/film/film") and film genres ("film/film_genre") in italian language.
I think the problem is the same in both cases, so I post the MQL query that I'm trying to run for the film genre description:
Mql query
[{
"type": "/film/film_genre",
"name": "Film culto",
"/common/topic/article": [{
"id": null
}]
}]
Response
{
"result": [{
"type": "/film/film_genre",
"name": "Film culto",
"/common/topic/article": [{
"id": "/m/01q0d"
}]
}]
}
With the article ID received ("/m/01q0d"), I would use the "trans/wrap" service (http://api.freebase.com/api/trans/raw/m/01q0d). However, even though I use the query parameter "lang=it", the article is in English... :(
Any suggestions? I'm going crazy :D
Freebase contains non-English names, but it doesn't, for the most part, contain descriptions in anything other than English. You could use the Topic API and get the /common/topic/topic_equivalent_webpage for the Italian Wikipedia to fetch the article/description from there, but that's probably the closest you'll get.
https://www.googleapis.com/freebase/v1/topic/m/01q03
And, as Phil said, the api.freebase.com is going away in a matter of days, so you need to be using the new APIs.
here's my query:
[{
"type": "/tv/tv_series_episode",
"series": "The Simpsons",
"guest_stars": [{
"actor": {
"/common/topic/article": [{
"id": null,
"optional": true,
"limit": 3
}],
"name": null
}
}]
}]
Freebase is returning an id for the article such as: id: "/m/0sw7x", how would I print this ID. I've read that you have to use a "trans" service but I'm not exactly sure how to do this...
The trans service is actually pretty simple to use. You just append that ID to the end of a GET request and it sends back the article content like this:
http://api.freebase.com/api/trans/raw/m/0sw7x
I gave a more detailed explanation to a similar question here.
Or you can fetch the article directly with MQL as detailed in my answer to the question narphorium's pointed at.