The presence of DNA aneuploidy (deviation from an exact multiple of the diploid amount of DNA) has been used to aid in the diagnoses of several malignancies. We undertook this study to determine if the addition of flow cytometric analysis (FCA) of bronchial washings and lavage specimens for the presence of DNA aneuploidy would increase the yield from bronchoscopy in the diagnosis of lung cancer...

Software systems are often highly structured, consisting of artifacts: types, methods, variables, and packages; and relationships between these artifacts. Domain and meta models, and software design documentation provide additional artifacts such as roles, associations, use cases, and paragraphs of text. This paper outlines a tool for software structure understanding. The tool consists of a kno...

This paper presents a framework for the development of formal concept analysis (FCA) algorithms. Its main component is a synthetic generator which formal parameters can be adjusted to allow testing the algorithms in situations of interest. It is also presented in the framework some basic FCA algorithms and some formal contexts obtained from real data sets, from a relatively small to a very larg...

Morphisms constitute a general tool for modelling complex relationships between mathematical objects in a disciplined fashion. In Formal Concept Analysis (FCA), morphisms can be used for the study of structural properties of knowledge represented in formal contexts, with applications to data transformation and merging. In this paper we present a comprehensive treatment of some of the most impor...

Software system Cordiet-FCA is presented, which is designed for knowledge discovery in big dynamic data collections, including texts in natural language. Cordiet-FCA allows one to compose ontology-controlled queries and outputs concept lattice, implication bases, association rules, and other useful concept-based artifacts. Efficient algorithms for data preprocessing, text processing, and visual...

The identification of Parrot bornaviruses (PaBV) in psittacine birds with proventricular dilatation disease (PDD) has not been sufficient to explain the pathogenesis of this fatal disease, since not all infected birds develop clinical signs. Although the most accepted theory indicates that PaBV directly triggers an inflammatory response in this disease, another hypothesis suggests the disease i...

BACKGROUND We have recently demonstrated that hemodialysis (HD) patients have significantly higher levels of functional complement activity (FCA) in all three pathways, i.e. the classical pathway, alternative pathway and lectin pathway (LP), than in age-matched controls, though the role of FCA during HD still remains unknown. METHODS Serial plasma or serum samples were obtained from five pati...

Formal Concept Analysis (FCA) is an exploratory data analysis technique for boolean relations based on lattice theory. Its main result is the existence of a dual order isomorphism between two set lattices induced by a binary relation between a set of objects and a set of attributes. Pairs of dually isomorphic sets of objects and attributes, called formal concepts, form a concept lattice, but ac...

An interesting problem associated with the World Wide Web (Web) is the definition and delineation of so called Web communities. The Web can be characterized as a directed graph whose nodes represent Web pages and whose edges represent hyperlinks. An authority is a page that is linked to by high quality hubs, while a hub is a page that links to high quality authorities. A Web community is a high...

An interesting problem associated with the World Wide Web (Web) is the definition and delineation of so called Web communities. The Web can be characterized as a directed graph whose nodes represent Web pages and whose edges represent hyperlinks. An authority is a page that is linked to by high quality hubs, while a hub is a page that links to high quality authorities. A Web community is a high...