منابع مشابه
Hierarchical Structures
7.1 Hierarchical Structures Hierarchies occur naturally in all sorts of data. For example, consider the following domains: 1. The reporting structure in a large corporation. 2. Classification of animals. 3. HTML documents, i.e., web pages. All of these domains possess a hierarchical structure. A corporation’s reporting structure may look like this: CEO Vice President (Finance) Manager Analyst A...
متن کاملHierarchical Structures
Hierarchical Structures So far, we have studied sequential structures which assigns each of their elements an index in the structure. This imposes an ordering relationship between elements based on this index. Now we will examine more complex relationships that we can impose between elements in a structure. The first of these is the hierarchy which establishes child-parent relationships between...
متن کاملIsomorphism of hierarchical structures
0. Int roduction Th is paper concerns certain hierarchical tilings of Euclidean space, of which a well known example is a ‘kite and dart’ tiling of the plane [Gar ]. Such tilings are noted for two properties: their unusual rotational symmetries (‘ten-fold symmetry’), and the fact that their global structures derive from local (‘matching’) rules. We will examine th e consequences of different ch...
متن کاملImplementing Hierarchical Graph-Structures
We present concepts for the implementation of hierarchical graphs, which can be used as basis for the implementation of tools for graphical formal description techniques (gFDT) like SDL or statecharts. Our approach provides a strong modularity of a speciication by a loose coupling between diierent hierarchy levels and it serves for a rapid development of interactive editors for gFDTs by a speci...
متن کاملGenetic Hierarchical Music Structures
ion: To allow easy creation of visual objects containing code to draw themselves, we should provide a higher-level drawing mechanism than the AWT‟s screen-coordinate system. Objects should be concerned only with drawing themselves in virtual space; whilst the Display should allow the user to navigate this virtual space by zooming, translating and rotating his view. The plan is to first build th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 1969
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.165.3889.202