[Developers] Bulk download from freebase

Colin Evans colin at metaweb.com
Fri Oct 12 21:03:32 UTC 2007


Hi Kavitha,
Congratulations on getting this to work.

The major thing that you are missing are the literal values, which you 
can get with these query clauses:

---
    "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
    }]
---

Note that the first clause returns text strings and their languages, and 
the second clause returns every literal (but no languages). 

You may also want keys from the graph:
---
    "/type/object/key":[{
      "link":{
        "creator":null,
        "timestamp":null
      },
      "namespace":null,
      "optional":true,
      "value":null
    }]
---

Good luck!
Colin




Kavitha Srinivas wrote:
> Hello
>    We issued the following 2 queries -- one to get all the guids (guid 
> query) and one to get all the links for a guid (per-guid query) and 
> converted it into about 19 million RDF triples.  We have about 35 HTTP 
> 500 errors.  Is it plausible that we have most of the dataset in 
> Freebase?  Or are we missing large chunks?  Thanks!
>
> Kavitha 
>
> /guid query:/
>
> [{ "guid":null }]
>
> /per-guid query: /
>
> [{ "/type/reflect/any_master":
>   [{
>     "guid":null,
>     "link":{"master_property":
>       {"name":null}
>     },
>    "optional":true
>   }],
>   "*":[],
>   "guid": <guid>
> }]
>
>
> ------------------------------------------------------------------------
>
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> Developers mailing list
> Developers at freebase.com
> http://lists.freebase.com/mailman/listinfo/developers
>   

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