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Use again the GE Flight Quest Data and build on the work done for homework 1 and 2. The goal is to create a classification model which classifies flights into "on-time" (you can define how many minuteslate you still accept) and "delayed". Use all available data (there is weather information available). Notealso that you have data for several days which you can use for training and testing.
Then, add 4 columns for the delay. These delay are:
Then work on this file.
Follow the CRISP-DM framework
3. Data Preparation
Depend on the model that you use, how it deals with messing data, such as replace them with the mean values or find out what values should be, or anything you comfortable with, and provide a short description for that.
Add column for weather to the file history that we have. You can find weather data in the data files.
4. Modeling
They could be 3 different trees, and describe each model. For example, put the tree or part of it then explain everything "what does it mean? What it tell the airport? What does it mean for them? And what can they do?
Which of these models work better?
5. Evaluation
6. Deployment
what is multivalued dependency
#explain five disadvantages of a dbms..
Two Phase Locking (2PL) The two-phase locking protocol having of two phases: Phase 1 : The lock acquisition phase : If a transaction T needs to read an object, it wants to
I want to buy this but I want to see a couple sample questions first. http://www.expertsmind.com/library/what-happens-to-rms-error-for-the-training-data-set-51564843.aspx
A Functional dependency is described by X Y between two groups of attributes Y and X that are subsets of R specifies a constraint on the possible tuple that can make a relation
What are the authentication modes in SQL Server? How can it be changed? Windows mode and Mixed Mode - SQL and Windows. To alter authentication mode in SQL Server click Start, P
Which language has presently become the defacto standard for interfacing application programs along with relational database system? The language which has recently become the
Why Like predicate used for? LIKE predicate: The LIKE predicate searches for strings in which have a certain pattern.
What is a homogeneous distributed database? In homogeneous distributed databases, all sites have the same database management system software, are aware of one another, and agr
we need example of 2phase locking
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