The original k-means algorithm is designed to work primarily on numeric data sets. This prohibits the algorithm from being applied to categorical data clustering, which is an integral part of data mining and has attracted much attention recently. The k-modes algorithm extended the k-means paradigm to cluster categorical data by using a frequency-based method to update the cluster modes versus t...

To help the difficult determination of the angle γ of the unitarity triangle, Aleksan, Dunietz and Kayser have proposed the modes of the type K − D + s , common to B s and ¯ B s. We point out that it is possible to gain in statistics by a sum over all modes with ground state mesons in the final state, i.e. s. The delicate point is the relative phase of these different contributions to the dilut...

A fundamental operation in data mining is to partition a given dataset into clusters such that objects in the same cluster are more similar to each other than objects in different clusters according to some defined criteria [2]. These criteria are usually defined in the form of some distance, and similarity is hence defined as follows, the smaller the distance is, the more similar the objects a...

Students have individual learning style preferences including visual (V; learning from graphs, charts, and flow diagrams), auditory (A; learning from speech), read-write (R; learning from reading and writing), and kinesthetic (K; learning from touch, hearing, smell, taste, and sight). These preferences can be assessed using the VARK questionnaire. We administered the VARK questionnaire to under...

Wehrwein EA, Lujan HL, DiCarlo SE. Gender differences in learning style preferences among undergraduate physiology students. Adv Physiol Educ 31: 153–157, 2007; doi:10.1152/advan.00060.2006.— Students have individual learning style preferences including visual (V; learning from graphs, charts, and flow diagrams), auditory (A; learning from speech), read-write (R; learning from reading and writi...

K(3) picene is a superconducting molecular crystal with a critical temperature of T(c) = 7 or 18 K, depending on the preparation conditions. Using density functional theory we show that electron-phonon interaction accounts for T(c) 3-8 K. The average electron-phonon coupling, calculated by including the phonon energy scale in the electron-phonon scattering, is λ = 0.73 and ω(log) = 18.0 meV. In...

We consider here colonies (grammar systems having as components regular grammars generating finite languages) with various derivation modes (*,t,< k,= k,> k, as usual in grammar systems area). Their generative capacity is investigated. Problems still open in the theory of general grammar systems (concerning, for instance, hierarchies on the number of components and on the parameter k mentioned ...

Numerous algorithms have been proposed to solve the shortest-pathproblem; many of them consider a single-mode network and crispcosts. Other attempts have addressed the problem of fuzzy costs ina single-mode network, the so-called fuzzy shortest-path problem(FSPP). The main contribution of the present work is to solve theoptimum path problem in a multimodal transportation network, inwhich the co...

Data in various systems, such as those in finance, healthcare, and business, are stored as time series. As such, interest in time series mining in these areas has surged. Clustering of data is performed as a pre-processing or exploratory approach in many data mining tasks. Time series data sets are often very large, thus, data cannot fit in the main memory for clustering. In this case, dimensio...