|
1
|
|
|
"""Registry of backend types for Annif""" |
|
2
|
|
|
|
|
3
|
|
|
|
|
4
|
|
|
# define functions for lazily importing each backend (alphabetical order) |
|
5
|
|
|
def _dummy(): |
|
6
|
|
|
from . import dummy |
|
7
|
|
|
return dummy.DummyBackend |
|
8
|
|
|
|
|
9
|
|
|
|
|
10
|
|
|
def _ensemble(): |
|
11
|
|
|
from . import ensemble |
|
12
|
|
|
return ensemble.EnsembleBackend |
|
13
|
|
|
|
|
14
|
|
|
|
|
15
|
|
|
def _fasttext(): |
|
16
|
|
|
try: |
|
17
|
|
|
from . import fasttext |
|
18
|
|
|
return fasttext.FastTextBackend |
|
19
|
|
|
except ImportError: |
|
20
|
|
|
raise ValueError("fastText not available, cannot use fasttext backend") |
|
21
|
|
|
|
|
22
|
|
|
|
|
23
|
|
|
def _http(): |
|
24
|
|
|
from . import http |
|
25
|
|
|
return http.HTTPBackend |
|
26
|
|
|
|
|
27
|
|
|
|
|
28
|
|
|
def _mllm(): |
|
29
|
|
|
from . import mllm |
|
30
|
|
|
return mllm.MLLMBackend |
|
31
|
|
|
|
|
32
|
|
|
|
|
33
|
|
|
def _nn_ensemble(): |
|
34
|
|
|
try: |
|
35
|
|
|
from . import nn_ensemble |
|
36
|
|
|
return nn_ensemble.NNEnsembleBackend |
|
37
|
|
|
except ImportError: |
|
38
|
|
|
raise ValueError("Keras and TensorFlow not available, cannot use " + |
|
39
|
|
|
"nn_ensemble backend") |
|
40
|
|
|
|
|
41
|
|
|
|
|
42
|
|
|
def _omikuji(): |
|
43
|
|
|
try: |
|
44
|
|
|
from . import omikuji |
|
45
|
|
|
return omikuji.OmikujiBackend |
|
46
|
|
|
except ImportError: |
|
47
|
|
|
raise ValueError("Omikuji not available, cannot use omikuji backend") |
|
48
|
|
|
|
|
49
|
|
|
|
|
50
|
|
|
def _pav(): |
|
51
|
|
|
from . import pav |
|
52
|
|
|
return pav.PAVBackend |
|
53
|
|
|
|
|
54
|
|
|
|
|
55
|
|
|
def _stwfsa(): |
|
56
|
|
|
from . import stwfsa |
|
57
|
|
|
return stwfsa.StwfsaBackend |
|
58
|
|
|
|
|
59
|
|
|
|
|
60
|
|
|
def _svc(): |
|
61
|
|
|
from . import svc |
|
62
|
|
|
return svc.SVCBackend |
|
63
|
|
|
|
|
64
|
|
|
|
|
65
|
|
|
def _tfidf(): |
|
66
|
|
|
from . import tfidf |
|
67
|
|
|
return tfidf.TFIDFBackend |
|
68
|
|
|
|
|
69
|
|
|
|
|
70
|
|
|
def _xtransformer(): |
|
71
|
|
|
try: |
|
72
|
|
|
from . import xtransformer |
|
73
|
|
|
return xtransformer.XTransformerBackend |
|
74
|
|
|
except ImportError: |
|
75
|
|
|
raise ValueError( |
|
76
|
|
|
"XTransformer not available, not enabling XTransformer backend") |
|
77
|
|
|
|
|
78
|
|
|
|
|
79
|
|
|
def _yake(): |
|
80
|
|
|
try: |
|
81
|
|
|
from . import yake |
|
82
|
|
|
return yake.YakeBackend |
|
83
|
|
|
except ImportError: |
|
84
|
|
|
raise ValueError("YAKE not available, cannot use yake backend") |
|
85
|
|
|
|
|
86
|
|
|
|
|
87
|
|
|
# registry of the above functions |
|
88
|
|
|
_backend_fns = { |
|
89
|
|
|
'dummy': _dummy, |
|
90
|
|
|
'ensemble': _ensemble, |
|
91
|
|
|
'fasttext': _fasttext, |
|
92
|
|
|
'http': _http, |
|
93
|
|
|
'mllm': _mllm, |
|
94
|
|
|
'nn_ensemble': _nn_ensemble, |
|
95
|
|
|
'omikuji': _omikuji, |
|
96
|
|
|
'pav': _pav, |
|
97
|
|
|
'stwfsa': _stwfsa, |
|
98
|
|
|
'svc': _svc, |
|
99
|
|
|
'tfidf': _tfidf, |
|
100
|
|
|
'xtransformer': _xtransformer, |
|
101
|
|
|
'yake': _yake |
|
102
|
|
|
} |
|
103
|
|
|
|
|
104
|
|
|
|
|
105
|
|
|
def get_backend(backend_id): |
|
106
|
|
|
if backend_id in _backend_fns: |
|
107
|
|
|
return _backend_fns[backend_id]() |
|
108
|
|
|
else: |
|
109
|
|
|
raise ValueError("No such backend type {}".format(backend_id)) |
|
110
|
|
|
|
NatLibFi /
Annif
