منابع مشابه
Pattern, Growth, and Control
Systems biology seeks not only to discover the machinery of life but to understand how such machinery is used for control, i.e., for regulation that achieves or maintains a desired, useful end. This sort of goal-directed, engineering-centered approach also has deep historical roots in developmental biology. Not surprisingly, developmental biology is currently enjoying an influx of ideas and met...
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ABSTRACT Hirsutism is a difficult problem for both to the patients and the physicians. Its definition is subjective and the severity of hirsutism and the degree of acceptance are dependent on racial, cultural and social factors. The hair growth pattern, under the influences of genetic and ethnic factors, has significant variations among normal females. In order to determine the prevalence of h...
متن کاملGrowth factors and pattern formation.
Growth and pattern formation occur simultaneously in many epimorphic fields and it has been suggested that specification of positional information is somehow linked to cell division. It is possible, therefore, that boundary regions responsible for the specification of positional information produce cell growth factors. In this paper I review the properties of some known growth factors, describe...
متن کاملPattern-growth Methods for Frequent Pattern Mining
Mining frequent patterns from large databases plays an essential role in many data mining tasks and has broad applications. Most of the previously proposed methods adopt apriorilike candidate-generation-and-test approaches. However, those methods may encounter serious challenges when mining datasets with prolific patterns and/or long patterns. In this work, we develop a class of novel and effic...
متن کاملSequential Pattern Mining by Pattern-Growth: Principles and Extensions
Sequential pattern mining is an important data mining problem with broad applications. However, it is also a challenging problem since the mining may have to generate or examine a combinatorially explosive number of intermediate subsequences. Recent studies have developed two major classes of sequential pattern mining methods: (1) a candidate generation-and-test approach, represented by (i) GSP...
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ژورنال
عنوان ژورنال: Cell
سال: 2011
ISSN: 0092-8674
DOI: 10.1016/j.cell.2011.03.009