=== Ideas ===

  * High order tensors:
    * $\infty$-gram HMM (like inf-gram language model)
    * transition-based dependency parser

  * Sharing factorization / projection accross NLP tasks
 
  * [[NLP for Chinese]]
    * "Compositional representation / grammar" for Chinese words (i.e. segments)
    * unsupervised character sparse coding