EpsilonSkyline Class Reference

Epsilon: Class of Epsilon Skyline. More...

Collaboration diagram for EpsilonSkyline:

[legend]List of all members.

Public Member Functions
	EpsilonSkyline ()
Static Public Member Functions
static EpsilonSkyline	Instance ()
static DataTable	dtNormalize (DataTable dtSource)
	Normalize data in dtSource to N(0, 1).
Static Private Member Functions
static DataTable	dtDataFile2Table (string FileString)
	Read data from the string of a text file to a datatable. The format of the string is Col_1...Col_n .
static ArrayList	BasicBNLSkyline (DataTable dt)
	Basic BNL algorithm on Skyline query.
static bool	blnDominate (DataRow dr1, DataRow dr2, int intType)
static ArrayList	Epsilon_BNLSkyline (DataTable dt, double dblEpsilon)
	Epsilon_BNL algorithm for Skyline query.
static bool	blnEpsilon_Dominate (DataRow dr1, DataRow dr2, int intType, double dblEpsilon)
	Epsilon-dominate operator.
Static Private Attributes
static EpsilonSkyline	m_instance = null

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Detailed Description

Epsilon: Class of Epsilon Skyline.

<author>Jarod Wen</author> <Date>20:18pm, Nov 26th, 2006</Date>

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Constructor & Destructor Documentation

EpsilonSkyline.EpsilonSkyline

(

)

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Member Function Documentation

static EpsilonSkyline EpsilonSkyline.Instance

(

)

[static]

static DataTable EpsilonSkyline.dtNormalize

(

DataTable

dtSource

)

[static]

Normalize data in dtSource to N(0, 1).

Parameters:

dtSource

Source Data Table

Returns:

Normalized data table

static DataTable EpsilonSkyline.dtDataFile2Table

(

string

FileString

)

[static, private]

Read data from the string of a text file to a datatable. The format of the string is Col_1...Col_n
.

Parameters:

FileString

Contents of the text file

Returns:

Data table filled with the data from the text file

static ArrayList EpsilonSkyline.BasicBNLSkyline

(

DataTable

dt

)

[static, private]

Basic BNL algorithm on Skyline query.

Parameters:

dt

Source Data table

Returns:

The list containing all the index of skyline objects

static bool EpsilonSkyline.blnDominate	(	DataRow	dr1,
		DataRow	dr2,
		int	intType
	)			[static, private]

Skyline operator: dominate

Parameters:

	dr1	Left data object of the operator.
	dr2	Right data object of the operator.
	columnList	Columns on which Skyline query will be processed
	intType	Comparation type: 0-Larger better; 1-Smaller better.

Returns:

Whether left data object dominate the right one.

static ArrayList EpsilonSkyline.Epsilon_BNLSkyline	(	DataTable	dt,
		double	dblEpsilon
	)			[static, private]

Epsilon_BNL algorithm for Skyline query.

Parameters:

	dt	Source data table
	dblEpsilon	Value of Epsilon

Returns:

The list containing all the index of Epsilon skyline objects

static bool EpsilonSkyline.blnEpsilon_Dominate	(	DataRow	dr1,
		DataRow	dr2,
		int	intType,
		double	dblEpsilon
	)			[static, private]

Epsilon-dominate operator.

Parameters:

	dr1	Left data object of the operator.
	dr2	Right data object of the operator.
	columnList	Columns on which Skyline query will be processed
	intType	Comparation type: 0-Larger better; 1-Smaller better.
	dblEpsilon

Returns:

Whether left data object dominate the right one.

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Member Data Documentation

EpsilonSkyline EpsilonSkyline.m_instance = null [static, private]

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The documentation for this class was generated from the following file:

• E:/Documents and Settings/LeeWinnie/My Documents/Visual Studio 2005/WebSites/SkylineWebSite/App_Code/EpsilonSkyline.cs

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