hazy_model Struct Reference

This model allows enapsulates the state of the SVM and the high, and low water. More...

#include <hazy_model.h>

List of all members.

Public Types
	LAZY_NAIVE
	EAGER_NAIVE
	LAZY_HAZY
	EAGER_HAZY
enum	strategy { LAZY_NAIVE, EAGER_NAIVE, LAZY_HAZY, EAGER_HAZY }
Public Member Functions
bool	test_and_set_model_in_db ()
	Returns true if the model is in the database.
void	invalidate_db_model ()
	Invalidates model_is_in_db variable.
bool	isEager ()
	Returns whether the strategy is eager or not.
bool	isLazy ()
	Returns whether the strategy is lazy or not.
bool	isHazy ()
	Returns whether the strategy is hazy or not.
bool	isNaive ()
	Returns whether the strategy is naive or not.
	hazy_model (struct model &model, strategy s)
	hazy_model constructor
Static Public Member Functions
static bool	isEager (strategy s)
	Returns whether given strategy is eager or not.
static bool	isLazy (strategy s)
	Returns whether given strategy is lazy or not.
static bool	isHazy (strategy s)
	Returns whether given strategy is hazy or not.
static bool	isNaive (strategy s)
	Returns whether given strategy is naive or not.
Public Attributes
model &	_model
enum hazy_model::strategy	_strategy
double	low_water
double	high_water
bool	model_is_in_db
	This is used by the LAZY algorithms to determine if they need to reupdate/cache the model inside the database.

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Detailed Description

This model allows enapsulates the state of the SVM and the high, and low water.

It also contains some helper functions for the enum, strategy

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Member Enumeration Documentation

enum hazy_model::strategy

Enumerator:

LAZY_NAIVE
EAGER_NAIVE
LAZY_HAZY
EAGER_HAZY

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Constructor & Destructor Documentation

hazy_model::hazy_model	(	struct model &	model,
		strategy	s
	)			[inline]

hazy_model constructor

Parameters:

[in]	model	sgd model
[in]	s	strategy being used

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Member Function Documentation

void hazy_model::invalidate_db_model

(

)

[inline]

Invalidates model_is_in_db variable.

static bool hazy_model::isEager

(

strategy

s

)

[inline, static]

Returns whether given strategy is eager or not.

Parameters:

[in]

s

strategy

Returns:

s is eager or not

bool hazy_model::isEager

(

)

[inline]

Returns whether the strategy is eager or not.

static bool hazy_model::isHazy

(

strategy

s

)

[inline, static]

Returns whether given strategy is hazy or not.

Parameters:

[in]

s

strategy

Returns:

s is hazy or not

bool hazy_model::isHazy

(

)

[inline]

Returns whether the strategy is hazy or not.

static bool hazy_model::isLazy

(

strategy

s

)

[inline, static]

Returns whether given strategy is lazy or not.

Parameters:

[in]

s

strategy

Returns:

s is lazy or not

bool hazy_model::isLazy

(

)

[inline]

Returns whether the strategy is lazy or not.

static bool hazy_model::isNaive

(

strategy

s

)

[inline, static]

Returns whether given strategy is naive or not.

Parameters:

[in]

s

strategy

Returns:

s is naive or not

bool hazy_model::isNaive

(

)

[inline]

Returns whether the strategy is naive or not.

bool hazy_model::test_and_set_model_in_db

(

)

[inline]

Returns true if the model is in the database.

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Member Data Documentation

struct model& hazy_model::_model

enum hazy_model::strategy hazy_model::_strategy

double hazy_model::high_water

double hazy_model::low_water

bool hazy_model::model_is_in_db

This is used by the LAZY algorithms to determine if they need to reupdate/cache the model inside the database.

It is to support an optimization. The protocol is that a model is in the db, until an update arrives, then we can no longer assume that the model is inside the databse. when we execute the prepared stmt (or equivalent) of model caching we will set this value to be true.

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

• hazy_model.h

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