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Chen's terminology has also been applied to earlier ideas. The lines, arrows, and crow's feet of some diagrams owes more to the earlier Bachman diagrams than to Chen's relationship diagrams. Another common extension to Chen's model is to "name" relationships and roles as verbs or phrases.
An associative entity (using Chen notation) As mentioned above, associative entities are implemented in a database structure using associative tables, which are tables that can contain references to columns from the same or different database tables within the same database. Concept of a mapping table
In an authoritative review of modern finance (Continuous-Time Methods in Finance: A Review and an Assessment [1]), the Chen model is listed along with the models of Robert C. Merton, Oldrich Vasicek, John C. Cox, Stephen A. Ross, Darrell Duffie, John Hull, Robert A. Jarrow, and Emanuel Derman as a major term structure model. Different variants ...
Peter Pin-Shan Chen (Chinese: 陳品山; born 3 January 1947) is a Taiwanese-American computer scientist and applied mathematician.He is a retired distinguished career scientist and faculty member at Carnegie Mellon University and Distinguished Chair Professor Emeritus at Louisiana State University.
Chen chaotic attractor [9] continuous: real: 3: 3: Not topologically conjugate to the Lorenz attractor. Chen-Celikovsky system [10] continuous: real: 3 "Generalized Lorenz canonical form of chaotic systems" Chen-LU system [11] continuous: real: 3: 3: Interpolates between Lorenz-like and Chen-like behavior. Chen-Lee system: continuous: real: 3 ...
CBS News correspondent Nancy Chen went behind the scenes at a UPS training facility in Chicago. It's one of 13 so-called Integrad training facilities across the globe where more than 100,000 ...
In systems analysis, a one-to-many relationship is a type of cardinality that refers to the relationship between two entities (see also entity–relationship model). For example, take a car and an owner of the car. The car can only be owned by one owner at a time or not owned at all, and an owner could own zero, one, or multiple cars.