Ross, I think you are not alone, as per this:
http://howfuckedismydatabase.com/nosql/
kc
On 11/6/13 8:54 AM, Ross Singer wrote:
> Hey Karen,
>
> It's purely anecdotal (albeit anecdotes borne from working at a company
> that offered, and has since abandoned, a sparql-based triple store
> service), but I just don't see the interest in arbitrary SPARQL queries
> against remote datasets that I do against linking to (and grabbing) known
> items. I think there are multiple reasons for this:
>
> 1) Unless you're already familiar with the dataset behind the SPARQL
> endpoint, where do you even start with constructing useful queries?
> 2) SPARQL as a query language is a combination of being too powerful and
> completely useless in practice: query timeouts are commonplace, endpoints
> don't support all of 1.1, etc. And, going back to point #1, it's hard to
> know how to optimize your queries unless you are already pretty familiar
> with the data
> 3) SPARQL is a flawed "API interface" from the get-go (IMHO) for the same
> reason we don't offer a public SQL interface to our RDBMSes
>
> Which isn't to say it doesn't have its uses or applications.
>
> I just think that in most cases domain/service-specific APIs (be they
> RESTful, based on the Linked Data API [0], whatever) will likely be favored
> over generic SPARQL endpoints. Are n+1 different APIs ideal? I am pretty
> sure the answer is "no", but that's the future I foresee, personally.
>
> -Ross.
> 0. https://code.google.com/p/linked-data-api/wiki/Specification
>
>
> On Wed, Nov 6, 2013 at 11:28 AM, Karen Coyle <[log in to unmask]> wrote:
>
>> Ross, I agree with your statement that data doesn't have to be "RDF all
>> the way down", etc. But I'd like to hear more about why you think SPARQL
>> availability has less value, and if you see an alternative to SPARQL for
>> querying.
>>
>> kc
>>
>>
>>
>> On 11/6/13 8:11 AM, Ross Singer wrote:
>>
>>> Hugh, I don't think you're in the weeds with your question (and, while I
>>> think that named graphs can provide a solution to your particular problem,
>>> that doesn't necessarily mean that it doesn't raise more questions or
>>> potentially more frustrations down the line - like any new power, it can
>>> be
>>> used for good or evil and the difference might not be obvious at first).
>>>
>>> My question for you, however, is why are you using a triple store for
>>> this?
>>> That is, why bother with the broad and general model in what I assume
>>> is a
>>> closed world assumption in your application?
>>>
>>> We don't generally use XML databases (Marklogic being a notable
>>> exception),
>>> or MARC databases, or <insert your transmission format of choice>-specific
>>> databases because usually transmission formats are designed to account for
>>> lots and lots of variations and maximum flexibility, which generally is
>>> the
>>> opposite of the modeling that goes into a specific app.
>>>
>>> I think there's a world of difference between modeling your data so it can
>>> be represented in RDF (and, possibly, available via SPARQL, but I think
>>> there is *far* less value there) and committing to RDF all the way down.
>>> RDF is a generalization so multiple parties can agree on what data
>>> means,
>>> but I would have a hard time swallowing the argument that domain-specific
>>> data must be RDF-native.
>>>
>>> -Ross.
>>>
>>>
>>> On Wed, Nov 6, 2013 at 10:52 AM, Hugh Cayless <[log in to unmask]>
>>> wrote:
>>>
>>> Does that work right down to the level of the individual triple though?
>>>> If
>>>> a large percentage of my triples are each in their own individual graphs,
>>>> won't that be chaos? I really don't know the answer, it's not a
>>>> rhetorical
>>>> question!
>>>>
>>>> Hugh
>>>>
>>>> On Nov 6, 2013, at 10:40 , Robert Sanderson <[log in to unmask]> wrote:
>>>>
>>>> Named Graphs are the way to solve the issue you bring up in that post,
>>>>> in
>>>>> my opinion. You mint an identifier for the graph, and associate the
>>>>> provenance and other information with that. This then gets ingested as
>>>>>
>>>> the
>>>>
>>>>> 4th URI into a quad store, so you don't lose the provenance information.
>>>>>
>>>>> In JSON-LD:
>>>>> {
>>>>> "@id" : "uri-for-graph",
>>>>> "dcterms:creator" : "uri-for-hugh",
>>>>> "@graph" : [
>>>>> // ... triples go here ...
>>>>> ]
>>>>> }
>>>>>
>>>>> Rob
>>>>>
>>>>>
>>>>>
>>>>> On Wed, Nov 6, 2013 at 7:42 AM, Hugh Cayless <[log in to unmask]>
>>>>>
>>>> wrote:
>>>>
>>>>> I wrote about this a few months back at
>>>>>> http://blogs.library.duke.edu/dcthree/2013/07/27/the-
>>>> trouble-with-triples/
>>>>
>>>>> I'd be very interested to hear what the smart folks here think!
>>>>>> Hugh
>>>>>>
>>>>>> On Nov 5, 2013, at 18:28 , Alexander Johannesen <
>>>>>> [log in to unmask]> wrote:
>>>>>>
>>>>>> But the
>>>>>>> question to every piece of meta data is *authority*, which is the part
>>>>>>> of RDF that sucks.
>>>>>>>
>> --
>> Karen Coyle
>> [log in to unmask] http://kcoyle.net
>> m: 1-510-435-8234
>> skype: kcoylenet
>>
--
Karen Coyle
[log in to unmask] http://kcoyle.net
m: 1-510-435-8234
skype: kcoylenet
