Looks OK. Can you please clarify how would you write queries in this case? (e.g If its "rainy" how would you check?) and internally how all of these will be processed?
Regards Suho On Tue, Sep 23, 2014 at 10:30 AM, Srinath Perera <[email protected]> wrote: > I think this is OK. Suho, WDYT? > > On Mon, Sep 22, 2014 at 12:15 AM, Ginnaliya Gamathige, Lahiru Manananda < > [email protected]> wrote: > >> Hi Devs, >> >> I am developing a classification algorithm for siddhi and I have a >> requirement of defining attributes as a nominal attribute. >> >> Nominal attribute is similar to a string attribute but during the >> definition we have to give the possible values for that attribute. >> One of the value from that set can come as the actual value in a >> particular event. I can see in the code Siddhi doesn’t support this (Please >> correct me if I am wrong), so >> I am thinking of changing the Siddhi language grammar to parse nominal >> attribute as below. >> >> Example query: define stream weather(outlook nominal{sunny, overcast, >> rainy}, temperature nominal{hot, mild, cool}, humidity nominal{high, >> normal},windy nominal{TRUE, FALSE},play nominal{yes, no}). >> >> If there is a better way to do this, please provide me some feedback. >> >> During the classification algorithm it will use numeric values which >> maps to these possible values(Ex: sunny=0,overcase=1,rainy=2) and do the >> calculation using numeric values. Initial phase of the algorithm >> I am implementing[1], I hope to process nominal values (which is easy to >> implement), then algorithm should support processing numeric data too. >> >> If you have any feedback please let me know. >> >> [1]http://homes.cs.washington.edu/~pedrod/papers/kdd00.pdf >> >> Regards >> Lahiru >> >> _______________________________________________ >> Architecture mailing list >> [email protected] >> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >> >> > > > -- > ============================ > Srinath Perera, Ph.D. > http://people.apache.org/~hemapani/ > http://srinathsview.blogspot.com/ > -- *S. Suhothayan* Technical Lead & Team Lead of WSO2 Complex Event Processor *WSO2 Inc. *http://wso2.com * <http://wso2.com/>* lean . enterprise . middleware *cell: (+94) 779 756 757 | blog: http://suhothayan.blogspot.com/ <http://suhothayan.blogspot.com/>twitter: http://twitter.com/suhothayan <http://twitter.com/suhothayan> | linked-in: http://lk.linkedin.com/in/suhothayan <http://lk.linkedin.com/in/suhothayan>*
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