What is the difference between UnaryTransformer and Transformer classes. In which scenarios should we use one or the other ?
On Sun, Jul 31, 2016 at 8:27 PM, janardhan shetty <janardhan...@gmail.com> wrote: > Developing in scala but any help with difference between UnaryTransformer > (Is this experimental still ?)and Transformer class is appreciated. > > Right now encountering error for the code which extends UnaryTransformer > > override protected def outputDataType: DataType = new StringType > > Error:(26, 53) constructor StringType in class StringType cannot be accessed > in class Capitalizer > override protected def outputDataType: DataType = new StringType > ^ > > > > On Thu, Jul 28, 2016 at 8:20 PM, Phuong LE-HONG <phuon...@gmail.com> > wrote: > >> Hi, >> >> I've developed a simple ML estimator (in Java) that implements >> conditional Markov model for sequence labelling in Vitk toolkit. You >> can check it out here: >> >> >> https://github.com/phuonglh/vn.vitk/blob/master/src/main/java/vn/vitk/tag/CMM.java >> >> Phuong Le-Hong >> >> On Fri, Jul 29, 2016 at 9:01 AM, janardhan shetty >> <janardhan...@gmail.com> wrote: >> > Thanks Steve. >> > >> > Any pointers to custom estimators development as well ? >> > >> > On Wed, Jul 27, 2016 at 11:35 AM, Steve Rowe <sar...@gmail.com> wrote: >> >> >> >> You can see the source for my transformer configurable bridge to Lucene >> >> analysis components here, in my company Lucidworks’ spark-solr project: >> >> < >> https://github.com/lucidworks/spark-solr/blob/master/src/main/scala/com/lucidworks/spark/ml/feature/LuceneTextAnalyzerTransformer.scala >> >. >> >> >> >> Here’s a blog I wrote about using this transformer, as well as >> >> non-ML-context use in Spark of the underlying analysis component, here: >> >> <https://lucidworks.com/blog/2016/04/13/spark-solr-lucenetextanalyzer/ >> >. >> >> >> >> -- >> >> Steve >> >> www.lucidworks.com >> >> >> >> > On Jul 27, 2016, at 1:31 PM, janardhan shetty < >> janardhan...@gmail.com> >> >> > wrote: >> >> > >> >> > 1. Any links or blogs to develop custom transformers ? ex: Tokenizer >> >> > >> >> > 2. Any links or blogs to develop custom estimators ? ex: any ml >> >> > algorithm >> >> >> > >> > >
