[jira] Commented: (CLEREZZA-20) Stable serialization

["Reto Bachmann-Gmür (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CLEREZZA-20?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12864809#action_12864809 ] 

Reto Bachmann-Gmür commented on CLEREZZA-20:
--------------------------------------------

the comment of the test code assumes there's a bug in the equls implementation of graph.

I've looked into the result with agenda_62.rdf

the result contains a bnode as follows

[]    <http://www.w3.org/2002/12/cal/ical#component>
              [ a       <http://www.w3.org/2002/12/cal/ical#Vevent> ;
                <http://www.w3.org/2002/12/cal/ical#location>
                        "Salon DEFG" ;
                <http://www.w3.org/2002/12/cal/ical#summary>
                        "Plenary - IAB Plenary"
              ] .

in the original version there are match more statements associated with the bnode, for instance it is the <http://www.w3.org/2002/12/cal/ical#component> of a VCalendar and has a start and enddate.


> Stable serialization
> --------------------
>
>                 Key: CLEREZZA-20
>                 URL: https://issues.apache.org/jira/browse/CLEREZZA-20
>             Project: Clerezza
>          Issue Type: New Feature
>            Reporter: Reto Bachmann-Gmür
>            Assignee: Manuel Innerhofer
>         Attachments: CLEREZZA-20.zip, StableSerializerProvider.java
>
>
> We shall provide an N-TRIPLES serializer that provides some stability in the serializations, i.e. that small changes in the graph cause a small change in the serialized form (and that the same graph often results in the same serialization). While full deterministic serialization is too computation expensive in the general case, some relatively simple adpatations in the b-node labeling algorithm and the order of the triples could give usable stability, thus making the nt-documents (such as the documentation.nt files) much more suitable for storage within a a VCS.

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