This paper presents an application of methods from the machine learning domain to solving the task of DNA sequence recognition. We present an algorithm that learns to recognize groups of DNA sequences sharing common features such as sequence functionality. We demonstrate application of the algorithm to find splice sites, i.e., to properly detect donor and acceptor sequences. We compare the results with those of reference methods that have been designed and tuned to detect splice sites. We also show how to use the algorithm to find a human readable model of the IRE (Iron-Responsive Element) and to find IRE sequences. The method, although universal, yields results which are of quality comparable to those obtained by reference methods. In contrast to reference methods, this approach uses models that operate on sequence patterns, which facilitates interpretation of the results by humans.
Abstract (sometimes called summary) of a scientific publication is a brief text that contains keywords. It is one of the elements of a bibliographic description in the bibliographic database iSybislaw – a modern information retrieval system. In the paper definitions of terms such as abstract, annotation and summary along with their constitutive elements are presented. A characteristics of such short texts inserted in the iSybislaw database in the fields Abstract and Abstract 2 is also given. Based on some examples excerpted from the iSybislaw system a typology of short texts, which are elements of the database bibliographic description, is proposed. The material allows to list three kinds of texts that are being used in the iSybislaw database: annotations, abstracts and biographic annotations.
PL
Przedmiotem analizy artykułu są krótkie teksty, które stanowią jeden z elementów opisu bibliograficznego w systemie wyszukiwawczym iSybislaw. W praktyce naukowej używane są różne terminy odnoszące się do takich tekstów (abstrakt, adnotacja, streszczenie). Autor podaje ich definicje oraz wskazuje elementy konstytutywne. Na podstawie przykładów wyekscerpowanych z systemu iSybislaw przedstawia ich typologię oraz omawia miejsce i funkcje w opisie bibliograficznym.
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.