Given a large set of data, a common data mining problem is to extract the frequent patterns occurring in this set. The idea presented in this paper is to extract a condensed representation of the frequent patterns called disjunction-bordered condensation (DBC), instead of extracting the whole frequent pattern collection. We show that this condensed representation can be used to regenerate all f...

The idea of design by contract (DBC), realized in the statically typed object-oriented programming language Eiffel, can be viewed as a systematic approach to specifying and implementing object-oriented software systems. We believe that a statically typed programming language is not suitable in the analysis and design phase of a prototyping-oriented software life cycle. For this purpose, dynamic...

The purpose of this study is to identify whether or not different materials of softball bats (wooden, aluminum, and composite) are a potential risk harm to hearing when batting players strike a 12'' core .40 softball during slow, underhand pitch typical of recreational games. Peak sound pressure level measurements and spectral analyses were conducted for three controlled softball pitches to a b...

The aim of this paper 1 is to present an empirical evaluation on using class-dependent principle component analysis (PCA) for dissimilarity-based classifications (DBC) [18]. In DBC, the classification performance relies heavily on how well the dissimilarity space is constructed. In this paper, we study a way of constructing it in eigenspaces, spanned by the subset of principal eigenvectors, ext...

Design by Contract (DbC) and runtime enforcement of program assertions enables the construction of more robust software. It also enables the assignment of blame in error reporting. Unfortunately, there is no support for runtime contract enforcement and blame assignment for Aspect-Oriented Programming (AOP). Extending DbC to also cover aspects brings forward a plethora of issues related to the c...

This paper describes the design of a CMOS frequency synthesizer targeting wireless local area network applications in the 5-GHz range, with emphasis on the HIPERLAN standard. Based on an integer-N architecture, the synthesizer produces a 5.2-GHz output as well as the quadrature phases of a 2.6-GHz carrier. Fabricated in a 0.4m digital CMOS technology, the circuit provides a channel spacing of 2...

As one of the frequently detected antibiotics in aqueous environment, environmental behaviour tetracycline has received increasing attention. Dissolved biochar (DBC) is an essential component dissolved organic matter (DOM) water enviroment. However, effect DBC on photodegradation was unclear. This study investigated impact solution under light illumination. The main components were humic acid-l...

The polycyclic aromatic hydrocarbon (PAH), benzo[a]pyrene (BaP), was compared to dibenzo[def,p]chrysene (DBC) and combinations of three environmental PAH mixtures (coal tar, diesel particulate and cigarette smoke condensate) using a two stage, FVB/N mouse skin tumor model. DBC (4nmol) was most potent, reaching 100% tumor incidence with a shorter latency to tumor formation, less than 20 weeks of...