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最新Tmsvm基于SVM的文本挖掘系統 包含JAVA和python兩個版本

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代碼片段和文件信息

#!/usr/bin/env?python

from?ctypes?import?*
from?ctypes.util?import?find_library
import?sys
import?os

#?For?unix?the?prefix?‘lib‘?is?not?considered.
if?find_library(‘linear‘):
liblinear?=?CDLL(find_library(‘linear‘))
elif?find_library(‘liblinear‘):
liblinear?=?CDLL(find_library(‘liblinear‘))
else:
if?sys.platform?==?‘win32‘:
liblinear?=?CDLL(os.path.join(os.path.dirname(__file__)‘./liblinear.dll‘))
else:
liblinear?=?CDLL(os.path.join(os.path.dirname(__file__)‘./liblinear.so.64‘))

#?Construct?constants
SOLVER_TYPE?=?[‘L2R_LR‘?‘L2R_L2LOSS_SVC_DUAL‘?‘L2R_L2LOSS_SVC‘?‘L2R_L1LOSS_SVC_DUAL‘\
‘MCSVM_CS‘?‘L1R_L2LOSS_SVC‘?‘L1R_LR‘?‘L2R_LR_DUAL‘]
for?i?s?in?enumerate(SOLVER_TYPE):?exec(“%s?=?%d“?%?(s??i))

PRINT_STRING_FUN?=?CFUNCTYPE(None?c_char_p)
def?print_null(s):?
return?

def?genFields(names?types):?
return?list(zip(names?types))

def?fillprototype(f?restype?argtypes):?
f.restype?=?restype
f.argtypes?=?argtypes

class?feature_node(Structure):
_names?=?[“index“?“value“]
_types?=?[c_int?c_double]
_fields_?=?genFields(_names?_types)

def?gen_feature_nodearray(xi?feature_max=None?issparse=True):
if?isinstance(xi?dict):
index_range?=?xi.keys()
elif?isinstance(xi?(list?tuple)):
xi?=?[0]?+?xi??#?idx?should?start?from?1
index_range?=?range(1?len(xi))
else:
raise?TypeError(‘xi?should?be?a?dictionary?list?or?tuple‘)

if?feature_max:
assert(isinstance(feature_max?int))
index_range?=?filter(lambda?j:?j?<=?feature_max?index_range)
if?issparse:?
index_range?=?filter(lambda?j:xi[j]?!=?0?index_range)

index_range?=?sorted(index_range)
ret?=?(feature_node?*?(len(index_range)+2))()
ret[-1].index?=?-1?#?for?bias?term
ret[-2].index?=?-1
for?idx?j?in?enumerate(index_range):
ret[idx].index?=?j
ret[idx].value?=?xi[j]
max_idx?=?0
if?index_range?:?
max_idx?=?index_range[-1]
return?ret?max_idx

class?problem(Structure):
_names?=?[“l“?“n“?“y“?“x“?“bias“]
_types?=?[c_int?c_int?POINTER(c_int)?POINTER(POINTER(feature_node))?c_double]
_fields_?=?genFields(_names?_types)

def?__init__(self?y?x?bias?=?-1):
if?len(y)?!=?len(x)?:
raise?ValueError(“len(y)?!=?len(x)“)
self.l?=?l?=?len(y)
self.bias?=?-1

max_idx?=?0
x_space?=?self.x_space?=?[]
for?i?xi?in?enumerate(x):
tmp_xi?tmp_idx?=?gen_feature_nodearray(xi)
x_space?+=?[tmp_xi]
max_idx?=?max(max_idx?tmp_idx)
self.n?=?max_idx

self.y?=?(c_int?*?l)()
for?i?yi?in?enumerate(y):?self.y[i]?=?y[i]

self.x?=?(POINTER(feature_node)?*?l)()?
for?i?xi?in?enumerate(self.x_space):?self.x[i]?=?xi

self.set_bias(bias)

def?set_bias(self?bias):
if?self.bias?==?bias:
return?
if?bias?>=?0?and?self.bias? self.n?+=?1
node?=?feature_node(self.n?bias)
if?bias?=?0:?
self.n?-=?1
node?=?feature_node(-1?bias)

for?xi?in?self.x_space:
xi[-2]?=?node
self.bias?=?bias


class?parameter(Structure):
_names?=?[“solver_type“?“eps“?“C“?“nr_weight“?“weight_label“?“weight“]

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????605537??2012-03-08?21:31??Tmsvm參考文檔(v1.2.0).pdf

?????文件?????651921??2011-11-22?19:05??tmsvm簡介(v1.2.0).pdf

?????文件???????5514??2012-09-21?10:17??data\Testdata.txt

?????文件???????5514??2012-09-21?10:17??data\Traindata.txt

?????文件???????4598??2012-09-21?10:21??data\Traindata_noseg.txt

?????文件???????1764??2012-04-24?20:19??dependence\.svn\all-wcprops

?????文件???????3004??2012-04-24?20:19??dependence\.svn\entries

?????文件?????????53??2011-11-10?14:29??dependence\.svn\prop-base\liblinear.dll.svn-base

?????文件?????????53??2011-11-18?13:55??dependence\.svn\prop-base\liblinear.so.32.svn-base

?????文件?????????53??2011-11-18?13:55??dependence\.svn\prop-base\liblinear.so.64.svn-base

?????文件?????????53??2011-11-09?16:47??dependence\.svn\prop-base\libsvm.dll.svn-base

?????文件?????????53??2011-11-18?13:55??dependence\.svn\prop-base\libsvm.so.32.svn-base

?????文件?????????53??2011-11-18?13:55??dependence\.svn\prop-base\libsvm.so.64.svn-base

?????文件?????????53??2011-11-09?16:47??dependence\.svn\prop-base\mmseg.dll.svn-base

?????文件?????????53??2011-11-18?13:55??dependence\.svn\prop-base\mmseg.so.32.svn-base

?????文件?????????53??2011-11-18?13:55??dependence\.svn\prop-base\mmseg.so.64.svn-base

?????文件??????80325??2011-11-10?13:51??dependence\.svn\text-base\chars.dic.svn-base

?????文件?????130560??2011-11-10?14:30??dependence\.svn\text-base\liblinear.dll.svn-base

?????文件???????7640??2011-12-01?19:11??dependence\.svn\text-base\liblinear.py.svn-base

?????文件??????48680??2011-11-18?13:55??dependence\.svn\text-base\liblinear.so.32.svn-base

?????文件??????56138??2011-11-18?13:55??dependence\.svn\text-base\liblinear.so.64.svn-base

?????文件???????8338??2011-11-10?18:59??dependence\.svn\text-base\liblinearutil.py.svn-base

?????文件?????140288??2011-11-10?13:51??dependence\.svn\text-base\libsvm.dll.svn-base

?????文件??????62281??2011-11-18?13:55??dependence\.svn\text-base\libsvm.so.32.svn-base

?????文件??????68105??2011-11-18?13:55??dependence\.svn\text-base\libsvm.so.64.svn-base

?????文件?????101376??2011-11-10?13:51??dependence\.svn\text-base\mmseg.dll.svn-base

?????文件??????22007??2011-11-18?13:55??dependence\.svn\text-base\mmseg.so.32.svn-base

?????文件??????26862??2011-11-18?13:55??dependence\.svn\text-base\mmseg.so.64.svn-base

?????文件???????8289??2012-01-14?10:51??dependence\.svn\text-base\porter2.py.svn-base

?????文件???????4138??2011-12-01?19:11??dependence\.svn\text-base\pymmseg.py.svn-base

............此處省略246個文件信息

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