Am 08.06.2012 um 15:41 schrieb <[email protected]> > Hello Richard! > > Besides view selection, your suggestion works. The outer analysis engine > works on the view given by AggregateBuilder.add(analysisEngineDescription, > CAS.NAME_DEFAULT_SOFA, viewName) as it should. The inner analysis engine is > called with analysisEngine.process(cas) from the outer ae's process(CAS cas) > method, where cas is the specified view. But the CAS of the inner ae's > process method is _initialView. The inner ae's view must be explicitly set.
I would naively have expected that the view is passed though, but then again I'm not too surprised that it isn't. > I've encountered these kinds of difficulties before. All these stuff with > views just beeing CASes of theire own as suggested by the documentation is > just not true. I think that this is a principle UIMA CAS design issue. It is > not possible to extract a view and save it as a separate CAS, e. g. for > getting rid of all the annotations of intermediate pipeline processes which I > do not want to be in the final result, or persisting just one view as a lean > CAS of its own. You can use a CasMultiplier which takes one input CAS and uses a CasCopier to copy only a certain view to an output CAS. Then you can save the new CAS to a file. It's not possible (to my knowledge) to use XMI or XCAS writers to write only a single view. -- Richard -- ------------------------------------------------------------------- Richard Eckart de Castilho Technical Lead Ubiquitous Knowledge Processing Lab (UKP-TUD) FB 20 Computer Science Department Technische Universität Darmstadt Hochschulstr. 10, D-64289 Darmstadt, Germany phone [+49] (0)6151 16-7477, fax -5455, room S2/02/B117 [email protected] www.ukp.tu-darmstadt.de Web Research at TU Darmstadt (WeRC) www.werc.tu-darmstadt.de -------------------------------------------------------------------
