[Developers] Freebase data download, conversion to RDF

Kavitha Srinivas ksrinivs at gmail.com
Wed Nov 28 22:22:54 UTC 2007


Any help on how to break up such a query would be appreciated!  Thanks.
Kavitha

On Nov 28, 2007, at 3:27 PM, Tim Kientzle wrote:

> Yes, these are all objects with extraordinarily large numbers
> of links.
>
> /wikipedia/en_id: 9202a8c04000641f8000000000003b24
> /wikipedia/en: 9202a8c04000641f8000000000003b29
> /user/metaweb/datasource/MusicBrainz: 9202a8c04000641f800000000114342d
> /user/metaweb/datasource/MusicBrainz/name:
> 9202a8c04000641f8000000001143432
> /topic/en: 9202a8c04000641f800000000594e4b1
>
> In order to query these, you'll need to use a cursored query
> since any attempt to get all properties at one time is certain
> to time out.
>
> Others here can probably suggest good ways to do this.  For
> reference, I've formatted your query a bit:
>
> {"qname":{"query":[{
>        "l:/type/reflect/any_master":
>           [{"guid":null,
>             "link":{"master_property":{"name":null}},
>             "optional":true
>           }],
>        "x:/type/reflect/any_master":
>           [{"name":null,
>             "type":"/type/type",
>             "link":{"master_property":{"name":null}},
>             "optional":true
>           }],
>        "t:/type/reflect/any_value":
>           [{"lang":null,
>             "link":
> {"creator":null,"master_property":null,"timestamp":null},
>             "optional":true,
>             "type":"/type/text",
>             "value":null
>           }],
>        "v:/type/reflect/any_value":
>           [{"link":
> {"creator":null,"master_property":null,"timestamp":null},
>             "optional":true,
>             "type":null,
>             "value":null
>           }],
>        "guid":GUID
> }]}}
>
> On Nov 28, 2007, at 10:22 AM, Kavitha Srinivas wrote:
>
>> Here are the guids that we had to give up on (after multiple tries).
>> Kavitha
>>
>>
>> <givenupguids>
>>
>>
>>
>> On Nov 27, 2007, at 4:18 PM, Tim Kientzle wrote:
>>
>>> Please let us know what those 5 problematic GUIDs were.
>>>
>>> Tim Kientzle
>>>
>>> On Nov 27, 2007, at 6:46 AM, Kavitha Srinivas wrote:
>>>
>>>> Thanks to a lot of help from the Freebase folks, we finally managed
>>>> to get data for all but 5 GUIDs downloaded from the Freebase
>>>> website,
>>>> and we transformed them into corresponding RDF triples.  We have
>>>> approximately 60 million RDF triples, so that's about a graph of  
>>>> 60M
>>>> edges.  Does this sound right?  If it does, we can run our  
>>>> transform
>>>> into RDF by you, make sure its correct and if there is interest,
>>>> upload it some place that might be useful for Freebase users.
>>>>
>>>> Kavitha Srinivas
>>>>
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>>>
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