In this paper, we present a case study that illustrates the utility of pattern tableau discovery for data quality analysis. Given a usersupplied integrity constraint, such as a boolean predicate expected to be satisfied by every tuple, a functional dependency, or an inclusion dependency, a pattern tableau is a concise summary of subsets of the data that satisfy or fail the constraint. We descri...

BACKGROUND Areca nut is the seed of fruit oriental palm known as Areca catechu. Many adverse effects of nut chewing have been well documented in the medical literature. As these nuts are mixed with some other substances like tobacco and flavouring agents, it has been hypothesized that it might also cause some dependency symptoms among its users. Therefore, the objective of this study was to inv...

Users move from one state (or task) to another in an information system’s labyrinth as they try to accomplish their work, and the amount of time they spend in each state varies. This article uses continuous-time stochastic models, mainly based on semi-Markov chains, to derive user state transition patterns (both in rates and in probabilities) in a Web-based information system. The methodology w...

Consider a given pattern H and a random text T oflength n. We assltme that consecutive symbols in the texl are generated either independently or with a Markovian dependency, i.e., we stItely both the so called Bernoulli model and the Markovian model. OUf goal is to assess the limiting distribution of the frequency of the pattern occurrences ln a random sequence. Overlapping copies of a pattern ...

In this paper, we suggest a psychological theory of dependency as an escape from feeling existential suffering and a poor quality of life. The ways in which human beings escape hidden existential pains are multiple. The wide range of dependency states seems to be the most common escape strategy used. If the patient can be guided into the hidden existential pain to feel, understand, and integrat...

A fundamental element of future generic pattern recognition technology is the ability to extract similar patterns for the same scene despite wide ranging extraneous variables, including lighting, turbidity, sensor exposure variations, and signal noise. In the process of demonstrating pattern constancy of this kind for retinex/visual servo (RVS) image enhancement processing, we found that the pa...

We implemented a syntactic and semantic tagging system for SemEval 2015 Task 15: Corpus Pattern Analysis. For syntactic tagging, we present a Dependency Chain Search Algorithm that is found to be effective at identifying structurally distant subjects and objects. Other syntactic labels are identified using rules defined over dependency parse structures and the output of a verb classification mo...

This paper shows how Design Patterns may be used to reveal properties of object-oriented development methods. The responsibility-driven and event-driven design methods are contrasted in the way they transform and layer systems. Each method elevates a different modularising principle: contract minimisation and existence dependency. Different design patterns, such as Mediator, Chain of Responsibi...

In this paper we consider the avoidance of patterns in infinite words. Generalising the traditional problem setting, functional dependencies between pattern variables are allowed here, in particular, patterns involving permutations. One of the remarkable facts is that in this setting the notion of avoidability index (the smallest alphabet size for which a pattern is avoidable) is meaningless si...

—This paper proposes a new digital beamformer for uniform concentric spherical array (UCSA) having nearly frequency invariant (FI) characteristics. The basic principle is to transform the received signals to the phase mode and remove the frequency dependency of the individual phase mode through the use of a digital beamforming network. It is shown that the far field pattern of the array is dete...