Content-based image retrieval and text-based image retrieval are two fundamental approaches in the field of image retrieval. The challenges related to each of these approaches, guide the researchers to use combining approaches and semi-automatic retrieval using the user interaction in the retrieval cycle. Hence, in this paper, an image retrieval system is introduced that provided two kind of qu...

This study is a bibliographic, descriptive, exploratory and qualitative research. The research took place in July August, 2021, the following databases: LILACS (Latin American Caribbean Literature on Health Sciences), MEDLINE (Medical Analysis Retrieval System Online) BDENF (Bibliographic Database Specialized Nursing Area. descriptors were used: Nursing; Urgency; Emergency Assistance, according...

Background & Aims: Some of the main questions which can be of importance for those researchers who intend to perform a systematic review in a field of science are: ‘What databases should I use for my review?’; ‘Do all these databases have the same value?’; and ‘Which sourcesretrieved the highest of relevant references?’. The main aim of this work was the identification of the best database for ...

BACKGROUND Research for developing search strategies to retrieve high-quality clinical journal articles from MEDLINE is expensive and time-consuming. The objective of this study was to determine the minimal number of high-quality articles in a journal subset that would need to be hand-searched to update or create new MEDLINE search strategies for treatment, diagnosis, and prognosis studies. M...

In this paper we describe an approach, implemented in a system named REFINER, to combining Boolean information retrieval and content-based navigation with concept lattices. When REFINER is presented with a Boolean query, it builds and displays a portion of the concept lattice associated with the documents being searched centered around the user query. The cluster network displayed by REFINER sh...

To improve today's online document retrieval systems, it seems sensible to aim at a direct display of complete documents instead of bibliographic references only. Doing this, it is also desirable to enhance the system environment in order to support various types of search strategies within the documents themselves. Advanced hypertext systems implement a large portion of such search tools. Howe...

WE UNDERSTAND “THEORY” TO BE A SYSTEM of testable explanatory statements derived from research. In knowledge organization, the generation of theory has moved from an epistemic stance of pragmatism (based on observation of the construction of retrieval tools), to empiricism (based on the results of empirical research). In the nineteenth century, Panizzi (1841), Cutter (1876), and Dewey (1876), d...