Hi Suat
On Wed, Feb 20, 2013 at 8:41 AM, Suat Gonul <[email protected]> wrote:
> Hi Rupert,
>
> LDPath filters are not considered in the Contenthub for the time being.
> As far as I understand, when you have a set of entities, and execute the
> LDPath with filters on them, you would get only the entities satisfying
> the condition given with the filter, wouldn't you? If so, I didn't get
> how we would use filters to partition enhancements into different
> graphs.
You are right. I forgot that the configured LDPath program is executed
several times on different Contexts within the indexed ContentItem. My
comment was in the assumption that the URI of the ContentItem is used
to apply the Filter - to decide if a ContentItem should be considered
for a semantic index or not.
> I think we still need a target graph URI. What comes to my mind
> for the trunk version is basically to pass a graph URI together with a
> chain name while sending a ContentItem to Contenthub.
>
+1
> For the branch version since users do not directly send the ContentItems
> to the indexes directly, we can pack the graph uri regarding to a
> ContentItem in a separate content part and process the graph URI within
> the Clerezza based semantic indexes accordingly so that we can partition
> the enhancements into different graphs.
Assuming that the Contenthub only supports a single Store I would
suggest that the Contenthub just adds an additional triple to the
metadata of the ContentItem
{content-item-uri} contenthub:collection {collection-uri}
and to allow using this information to filter content items during
semantic indexing. An own ContentPart seams to be an overkill.
In the long term I would like the Contenthub to support multiple
Stores and SemanticIndexes to support multiple Stores as Indexing
Sources. When adapting the Store/SemanticIndex architecture for the
Entityhub I will definitely need this. So when adding this for the
Entityhub we can than also use it for the Contenthub.
best
Rupert
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| Rupert Westenthaler [email protected]
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