@article{
    Jappinen88b,
    author = {J{\"{a}}ppinen, Harri and Honkela, Timo and Hy{\"{o}}tyniemi, Heikki and Lehtola, Aarno},
    title = "A multilevel natural language processing model",
    url = "http://doi:10.1017/S033258650000175X",
    journal = "Nordic Journal of Linguistics",
    pages = "69-82",
    volume = "11",
    year = "1988",
    abstract = "In this paper we describe a multilevel model for natural language processing. The distinct computational strata are motivated by invariant linguistic properties which are progressively uncovered from utterances. We examine each level in detail. The processes are morphological analysis, dependency parsing, logico-semantic analysis and query adaptation. Both linguistic and computational aspects are discussed. In addition to theory, we consider certain engineering viewpoints important and discuss them briefly."
}