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Property of Penn Engineering What is Abstraction? Copyright By PowCoder代写 加微信 powcoder Property of Penn Engineering • Modularity: each component addresses a single part of the functionality • Functional Independence: components should have minimal dependence on other components • Abstraction: components should be able to use other components with minimal knowledge of the details of

package ngordnet.ngrams; import java.util.Collection; Copyright By PowCoder代写 加微信 powcoder /** An object that provides utility methods for making queries on the * Google NGrams dataset (or a subset thereof). * An NGramMap stores pertinent data from a “words file” and a “counts * file”. It is not a map in the strict sense, but it

package ngordnet.ngrams; import java.util.*; import java.util.ArrayList; Copyright By PowCoder代写 加微信 powcoder /** An object for mapping a year number (e.g. 1996) to numerical data. Provides * utility methods useful for data analysis. * @author public class TimeSeries extends TreeMap { /** Constructs a new empty TimeSeries. */ public TimeSeries() { /** Creates a copy of