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src
shogun
classifier
vw
VwEnvironment.h
浏览该文件的文档.
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/*
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* Copyright (c) 2009 Yahoo! Inc. All rights reserved. The copyrights
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* embodied in the content of this file are licensed under the BSD
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* (revised) open source license.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* Written (W) 2011 Shashwat Lal Das
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* Copyright (C) 2011 Berlin Institute of Technology and Max-Planck-Society.
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*/
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#ifndef _VW_ENV_H__
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#define _VW_ENV_H__
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#include <
shogun/base/SGObject.h
>
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#include <
shogun/base/DynArray.h
>
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#include <
shogun/lib/DataType.h
>
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#include <
shogun/lib/common.h
>
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#include <
shogun/lib/v_array.h
>
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#include <
shogun/classifier/vw/vw_constants.h
>
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namespace
shogun
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{
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class
CVwEnvironment
:
public
CSGObject
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{
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public
:
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CVwEnvironment
();
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virtual
~CVwEnvironment
() { }
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inline
void
set_num_bits
(
vw_size_t
bits) {
num_bits
= bits; }
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inline
vw_size_t
get_num_bits
() {
return
num_bits
; }
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inline
void
set_mask
(
vw_size_t
m) {
mask
= m; }
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inline
vw_size_t
get_mask
() {
return
mask
; }
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inline
float64_t
get_min_label
() {
return
min_label
; }
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inline
float64_t
get_max_label
() {
return
max_label
; }
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inline
vw_size_t
num_threads
() {
return
1 <<
thread_bits
; }
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inline
vw_size_t
length
() {
return
1 <<
num_bits
; }
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void
set_stride
(
vw_size_t
new_stride);
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virtual
const
char
*
get_name
()
const
{
return
"VwEnvironment"
; }
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private
:
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virtual
void
init();
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public
:
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vw_size_t
num_bits
;
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vw_size_t
thread_bits
;
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vw_size_t
mask
;
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vw_size_t
thread_mask
;
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vw_size_t
stride
;
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float64_t
min_label
;
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float64_t
max_label
;
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float32_t
eta
;
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float32_t
eta_decay_rate
;
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bool
adaptive
;
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bool
exact_adaptive_norm
;
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float32_t
l1_regularization
;
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bool
random_weights
;
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float32_t
initial_weight
;
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float32_t
update_sum
;
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float32_t
t
;
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float64_t
initial_t
;
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float32_t
power_t
;
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int64_t
example_number
;
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float64_t
weighted_examples
;
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float64_t
weighted_unlabeled_examples
;
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float64_t
weighted_labels
;
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vw_size_t
total_features
;
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float64_t
sum_loss
;
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vw_size_t
passes_complete
;
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vw_size_t
num_passes
;
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vw_size_t
ngram
;
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vw_size_t
skips
;
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bool
ignore_some
;
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bool
ignore
[256];
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DynArray<char*>
pairs
;
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const
char
*
vw_version
;
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vw_size_t
v_length
;
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};
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}
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#endif // _VW_ENV_H__
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