enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. List update problem - Wikipedia

    en.wikipedia.org/wiki/List_update_problem

    The List Update or the List Access problem is a simple model used in the study of competitive analysis of online algorithms.Given a set of items in a list where the cost of accessing an item is proportional to its distance from the head of the list, e.g. a linked List, and a request sequence of accesses, the problem is to come up with a strategy of reordering the list so that the total cost of ...

  3. Observer pattern - Wikipedia

    en.wikipedia.org/wiki/Observer_pattern

    Below is an example written in Java that takes keyboard input and handles each input line as an event. When a string is supplied from System.in , the method notifyObservers() is then called in order to notify all observers of the event's occurrence, in the form of an invocation of their update methods.

  4. Partial regression plot - Wikipedia

    en.wikipedia.org/wiki/Partial_regression_plot

    The influences of individual data values on the estimation of a coefficient are easy to see in this plot. It is easy to see many kinds of failures of the model or violations of the underlying assumptions (nonlinearity, heteroscedasticity, unusual patterns). . Partial regression plots are related to, but distinct from, partial residual plots.

  5. Plot (graphics) - Wikipedia

    en.wikipedia.org/wiki/Plot_(graphics)

    Partial residual plot : In applied statistics, a partial residual plot is a graphical technique that attempts to show the relationship between a given independent variable and the response variable given that other independent variables are also in the model. Probability plot : The probability plot is a graphical technique for assessing whether ...

  6. Comparison of data modeling tools - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_data...

    Update database and/or update model No Open ModelSphere: Conceptual, Logical, physical IDEF1X, IE (Crow’s foot), and more Yes Yes Update database and/or update model No Oracle SQL Developer Data Modeler Logical, physical Barker, IE (Crow’s foot), and Bachman Yes Yes Update database and/or update model Yes PowerDesigner

  7. Data modeling - Wikipedia

    en.wikipedia.org/wiki/Data_modeling

    Data models are progressive; there is no such thing as the final data model for a business or application. Instead a data model should be considered a living document that will change in response to a changing business. The data models should ideally be stored in a repository so that they can be retrieved, expanded, and edited over time.

  8. Plotting algorithms for the Mandelbrot set - Wikipedia

    en.wikipedia.org/wiki/Plotting_algorithms_for...

    An example of the fine detail possible with the usage of derbail, rendered with 1024 samples. It is common to check the magnitude of z after every iteration, but there is another method we can use that can converge faster and reveal structure within julia sets.

  9. Retroactive data structure - Wikipedia

    en.wikipedia.org/wiki/Retroactive_data_structure

    Any data structure can be reformulated in a retroactive setting. In general the data structure involves a series of updates and queries made over some period of time. Let U = [u t 1, u t 2, u t 3, ..., u t m] be the sequence of update operations from t 1 to t m such that t 1 < t 2 < ... < t m. The assumption here is that at most one operation ...