Re: Delegation and splitting the description of a subject over multiple document
On Thu, May 13, 2010 at 6:43 PM, Nathan nat...@webr3.org wrote: Thus, do we currently have, or can we find a single, simple way to express that document X contains further information for subject Y that primarily uses the predicate Z. I'm not certain, but I'm pretty sure that this should be: document X contains further information for subject Y that focuses on the predicate Z primarily uses is dangerous because many data representations end up primarily using the very common predicates from the rdf: rdfs: and dc namespaces. In information retrieval terms, what would be more useful is a tf-idf approach (see http://en.wikipedia.org/wiki/Tf%E2%80%93idf ). cheers stuart
Re: Travel journal or diary ontology [literature]
If you want to encode documents such as this, I suggest that you start with TEI. There are a whole range of institutions, archives and libraries using TEI (see a partial list at http://www.tei-c.org/Activities/Projects/ ). cheers stuart On Sun, Jun 13, 2010 at 2:04 AM, Karl Dubost karl+...@la-grange.net wrote: I'm reading a very interesting [Travel journal][1]: The diary written for the [Iwakura mission][2], sent from Japan around the world from 1871 to 1873. The entries in the journal refer most of the time to a day, where the author is decribing what the mission has lived and discovered. # Issue I found no schemas (in RDF) trying to describe a travel journal. Has anyone worked on that topic? Did they start to create a schema? I can see how fun visualization could be made of a travel diary, mixing them with others. Connecting people, writers of different time in history. I describe here the type of Information I have identified. # Type of Information The entries contain: Date. ex: February 12th (1872) Weather. ex: Fine Prose. a text containing a lot of information which would be interesting to describe. In the Prose: Location. The participants arrive, stay or leave a [global place] but they also move around when they are at this global place. They are sometimes moving between two [places], then the location is a [moving object] like a boat or a train. The writer is talking about [another location] when being at the [global place]. Objects. The writer is talking about [objects], pieces of technology, such as railroad tracks or a boat. People. Some [people] who are met or as a reference are mentionned. Events. The writer might write about a future or past [events]. ex: When in Chicago, he is writing about the Great Fire of Chicago, 4 months ago. Entities. The writer is talking about a [legal entity] such as a private company or an organization. [1]: http://en.wikipedia.org/wiki/Travel_journal [2]: http://en.wikipedia.org/wiki/Iwakura_Mission -- Karl Dubost Montréal, QC, Canada http://www.la-grange.net/karl/
Re: Organization ontology
On Wed, Jun 2, 2010 at 8:09 PM, Dave Reynolds dave.e.reyno...@googlemail.com wrote: On Wed, 2010-06-02 at 17:06 +1200, Stuart A. Yeates wrote: On Tue, Jun 1, 2010 at 7:50 PM, Dave Reynolds dave.e.reyno...@googlemail.com wrote: We would like to announce the availability of an ontology for description of organizational structures including government organizations. This was motivated by the needs of the data.gov.uk project. After some checking we were unable to find an existing ontology that precisely met our needs and so developed this generic core, intended to be extensible to particular domains of use. [1] http://www.epimorphics.com/public/vocabulary/org.html I think this is great, but I'm a little worried that a number of Western (and specifically Westminister) assumptions may have been built into it. Interesting. We tried to keep the ontology reasonably neutral, that's why, for example, there is no notion of a Government or Corporation. Could you say a little more about the specific Western Westminster assumptions that you feel are built into it? (*) that structure is relatively static with sharp transitions between states. (*) that an organisation has a single structure rather than a set of structures depending on the operations you are concerned with (finance, governance, authority, criminal justice, ...) (*) that the structures are intended to be as they are, rather than being steps towards some kind of Platonic ideal ... Modelling the crime organisations (the mafia, drug runners, Enron, identity crime syndicates) may also be helpful in exposing assumptions, particularly those in mapping the real-world to legal entities. Alternatively, this may help in defining the subset of organisations that you're trying to model. Control is a different issue from organizational structure. This ontology is not designed to support reasoning about authority and governance models. There are Enterprise Ontologies that explicitly model authority, accountability and empowerment flows and it would be possible to create a generic one which bolted alongside org but org is not such a beast :) I suspect I may have mis-understood the subset of problems you're trying to solve. A statement such as the above in the ontology document might save others making the same mistake. cheers stuart
Re: Representing relation between posts
On Wed, Jun 2, 2010 at 10:43 AM, Nathan nat...@webr3.org wrote: Daniel Schwabe wrote: Hi all, is there a preferred way to represent the relation between posts in different Social Sites? For example, it is now pretty common to post to Twitter, and this post becomes a post in my wall in Facebook. It would be nice to represent the relation between these two posts. I don't think this can be represented directly using SIOC, for instance. sioc:sibling ? But they're not really siblings, they're the same post in different views. I'd be tempted to use: skos:closeMatch or skos:exactMatch. cheers stuart
Re: Organization ontology
On Tue, Jun 1, 2010 at 7:50 PM, Dave Reynolds dave.e.reyno...@googlemail.com wrote: We would like to announce the availability of an ontology for description of organizational structures including government organizations. This was motivated by the needs of the data.gov.uk project. After some checking we were unable to find an existing ontology that precisely met our needs and so developed this generic core, intended to be extensible to particular domains of use. [1] http://www.epimorphics.com/public/vocabulary/org.html I think this is great, but I'm a little worried that a number of Western (and specifically Westminister) assumptions may have been built into it. What would be great would be to see a handful of different organisations (or portions of them) from different traditions modelled. Maybe: * The tripartite system at the top of US government, which seems pretty complex to me, with former Presidents apparently retaining some control after they leave office * The governance model of the Vatican City and Catholic Church * The Asian royalty model, in which an informal royalty commonly appears to sit above a formal constitution cheers stuart
Re: Public domain icons
On Mon, May 10, 2010 at 9:02 AM, Toby Inkster t...@g5n.co.uk wrote: I'm writing an RDF linter/visualiser and need some icons, preferably public domain. I've been using Tango, but they don't cover all the concepts I need. I want a coherent icon set covering the following: - Person - Organisation - Group (of people) - Document - Project - Book - Video/Film - Song - Album - Event - Place - Review - Other/Generic - Unknown Anyone have any pointers? Public domain is complex for a number of reasons, but clearly licensed icons can be had at: http://commons.wikimedia.org/wiki/Crystal_Clear http://openiconlibrary.sourceforge.net/ cheers stuart
Re: Linked data in packaged content (ePub)
On Wed, Apr 28, 2010 at 8:42 PM, Ed Summers e...@pobox.com wrote: On Tue, Apr 27, 2010 at 4:40 PM, Stuart A. Yeates syea...@gmail.com wrote: Does anyone know of any other attempts to put linked data into packages like this? While arguably not Linked Data per-se, you might be interested in work being done on the Open Publication Distribution System (OPDS) [1], which aims to use Atom for making metadata about ebooks available. A key part of an OPDS feed are opds:acquisition links between an atom:entry and a epub document identified with a URI and a media type, for example: link type=application/epub+zip href=http://www.feedbooks.com/book/4440.epub; rel=http://opds-spec.org/acquisition/ Implementors include people at O'Reilly, Internet Archive, Ibis Reader, FeedBooks, to name a few. Much of the work is actually going on in open bi-weekly conference calls, and on a discussion list [3] if you are interested. On a recent call Hadrien Gardeur of Feedbooks was talking about embedding opds atom documents in the ebook serializations, so it might be worthwhile pinging him and/or the discussion list to see where things are at. //Ed [1] http://code.google.com/p/openpub/wiki/CatalogSpecDraft [2] http://ibisreader.com/ [3] http://groups.google.com/group/openpub Thank Ed. I was unaware of some of those developments. The schema in the draft looks very useful, because it's something solid to check against, rather than sucking it and seeing. cheers stuart
Linked data in packaged content (ePub)
I'm interested in putting linked data into eBooks published in the (open standard) ePub format (http://www.openebook.org/ ). The format is essentially a relocatable zip file of XHTML, associated media files and a few metadata files. The target platforms of this content impose some restrictions on what is practical: e-ink devices (which are the only current eBook readers with the battery life to last an entire novel) typically don't have an internet connection (thus no resolving of links) and have very little in the way of processing power (thus no full reasoning). We already have some data-interlinking between our collection (http://www.nzetc.org/ ) and librarything (http://www.librarything.com/ ) at the FRBR work level (http://vocab.org/frbr/core.html#Work ) and also some links to wikipedia / dbpedia for named entities (principally authors and places). We believe we have quite good authority control over author names, even those who published under multiple names (see, for example http://www.nzetc.org/tm/scholarly/name-208662.html or http://www.nzetc.org/tm/scholarly/name-208310.html ). We have ~1300 ePubs, the largest of which exceed the size limits of most ePub tools. Does anyone know of any other attempts to put linked data into packages like this? There are two main issues I can see: (a) how to self-identify the package (naive hashing doesn't work, as some eBook readers open the package and add custom metadata) and (b) how to package the linked data to get maximal use when a paucity of CPU precludes a full reasoner. The traditional identifier used in this field, the ISBN, is essentially a print-run identifier, and not of a whole lot of obvious use to us since: (a) most of our books' original publishing predates ISBNs and (b) our digital republishing of them doesn't qualify for an ISBN according to our local ISBN issuer (the National Library of New Zealand). cheers stuart
Re: Linked data in packaged content (ePub)
On Wed, Apr 28, 2010 at 11:36 PM, John Erickson olyerick...@gmail.com wrote: Stuart, t's not clear to me what you're trying to accomplish...For whom are you trying to add value? We are funded to digitise teaching, learning and research materials for our staff and students. Value to anyone else is incidental, but indicative. Are you imagining creating some kind of meshup within the reading experience, perhaps meshing metadata and links bound to entities within the ePub'd document with external linked data? Ideally, I'd like a protocol such as Open URL ( http://en.wikipedia.org/wiki/Open_URL ), linking books on the device up to the bibliographies of other books that also happen to be on the device. For low CPU devices the links might have to be pre-calculated when connected to a desktop PC. I understand that Open URL can't actaully do this because it assumes the web. cheers stuart
