!10486 add export file for fasttext

From: @zhaojichen
Reviewed-by: @liangchenghui,@c_34
Signed-off-by: @c_34

model_zoo/official/nlp/fasttext/export.py

@@ -0,0 +1,100 @@
+# Copyright 2020 Huawei Technologies Co., Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============================================================================
+"""export checkpoint file into models"""
+
+import argparse
+import numpy as np
+import mindspore.nn as nn
+from mindspore.common.tensor import Tensor
+import mindspore.ops.operations as P
+from mindspore import context
+from mindspore.train.serialization import load_checkpoint, export, load_param_into_net
+from  src.fasttext_model import FastText
+
+parser = argparse.ArgumentParser(description='fasttexts')
+parser.add_argument('--device_target', type=str, choices=["Ascend", "GPU", "CPU"],
+                    default='Ascend', help='Device target')
+parser.add_argument('--device_id', type=int, default=0, help='Device id')
+parser.add_argument('--ckpt_file', type=str, required=True, help='Checkpoint file path')
+parser.add_argument('--file_name', type=str, default='fasttexts', help='Output file name')
+parser.add_argument('--file_format', type=str, choices=["AIR", "ONNX", "MINDIR"], default='AIR',
+                    help='Output file format')
+parser.add_argument('--data_name', type=str, required=True, default='ag',
+                    help='Dataset name. eg. ag, dbpedia, yelp_p')
+args = parser.parse_args()
+
+if args.data_name == "ag":
+    from src.config import config_ag as config
+    target_label1 = ['0', '1', '2', '3']
+elif args.data_name == 'dbpedia':
+    from src.config import config_db as config
+    target_label1 = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13']
+elif args.data_name == 'yelp_p':
+    from  src.config import config_yelpp as config
+    target_label1 = ['0', '1']
+
+context.set_context(
+    mode=context.GRAPH_MODE,
+    save_graphs=False,
+    device_target="Ascend")
+
+class FastTextInferExportCell(nn.Cell):
+    """
+    Encapsulation class of FastText network infer.
+
+    Args:
+        network (nn.Cell): FastText model.
+
+    Returns:
+        Tuple[Tensor, Tensor], predicted_ids
+    """
+    def __init__(self, network):
+        super(FastTextInferExportCell, self).__init__(auto_prefix=False)
+        self.network = network
+        self.argmax = P.ArgMaxWithValue(axis=1, keep_dims=True)
+        self.log_softmax = nn.LogSoftmax(axis=1)
+
+    def construct(self, src_tokens, src_tokens_lengths):
+        """construct fasttext infer cell"""
+        prediction = self.network(src_tokens, src_tokens_lengths)
+        predicted_idx = self.log_softmax(prediction)
+        predicted_idx, _ = self.argmax(predicted_idx)
+
+        return predicted_idx
+
+def run_fasttext_export():
+    """export function"""
+    fasttext_model = FastText(config.vocab_size, config.embedding_dims, config.num_class)
+    parameter_dict = load_checkpoint(args.ckpt_file)
+    load_param_into_net(fasttext_model, parameter_dict)
+    ft_infer = FastTextInferExportCell(fasttext_model)
+
+    if args.data_name == "ag":
+        src_tokens_shape = [config.batch_size, 467]
+        src_tokens_length_shape = [config.batch_size, 1]
+    elif args.data_name == 'dbpedia':
+        src_tokens_shape = [config.batch_size, 1120]
+        src_tokens_length_shape = [config.batch_size, 1]
+    elif args.data_name == 'yelp_p':
+        src_tokens_shape = [config.batch_size, 2955]
+        src_tokens_length_shape = [config.batch_size, 1]
+
+    file_name = args.file_name + '_' + args.data_name
+    src_tokens = Tensor(np.ones((src_tokens_shape)).astype(np.int32))
+    src_tokens_length = Tensor(np.ones((src_tokens_length_shape)).astype(np.int32))
+    export(ft_infer, src_tokens, src_tokens_length, file_name=file_name, file_format=args.file_format)
+
+if __name__ == '__main__':
+    run_fasttext_export()

model_zoo/official/nlp/fasttext/src/dataset.py

@@ -53,14 +53,14 @@ class FastTextDataPreProcess():
         self.ngram = ngram
         self.text_greater = '>'
         self.text_less = '<'
-        self.ngram2idx = dict()
-        self.idx2gram = dict()
+        self.word2vec = dict()
+        self.vec2words = dict()
         self.non_str = '\\'
         self.end_string = ['.', '?', '!']
-        self.ngram2idx['PAD'] = 0
-        self.idx2gram[0] = 'PAD'
-        self.ngram2idx['UNK'] = 1
-        self.idx2gram[1] = 'UNK'
+        self.word2vec['PAD'] = 0
+        self.vec2words[0] = 'PAD'
+        self.word2vec['UNK'] = 1
+        self.vec2words[1] = 'UNK'
         self.str_html = re.compile(r'<[^>]+>')
 
     def load(self):
@@ -144,13 +144,13 @@ class FastTextDataPreProcess():
         for l in range(train_dataset_list_length):
             bucket_length = self._get_bucket_length(train_dataset_list[l][0], self.buckets)
             while len(train_dataset_list[l][0]) < bucket_length:
-                train_dataset_list[l][0].append(self.ngram2idx['PAD'])
+                train_dataset_list[l][0].append(self.word2vec['PAD'])
             train_dataset_list[l][1] = len(train_dataset_list[l][0])
         # pad test dataset
         for j in range(test_dataset_list_length):
             test_bucket_length = self._get_bucket_length(test_dataset_list[j][0], self.test_bucket)
             while len(test_dataset_list[j][0]) < test_bucket_length:
-                test_dataset_list[j][0].append(self.ngram2idx['PAD'])
+                test_dataset_list[j][0].append(self.word2vec['PAD'])
             test_dataset_list[j][1] = len(test_dataset_list[j][0])
 
         train_example_data = []
@@ -173,7 +173,7 @@ class FastTextDataPreProcess():
             for key in self.test_feature_dict:
                 if key == test_example_data[h]['src_tokens_length']:
                     self.test_feature_dict[key].append(test_example_data[h])
-        print("train vocab size is ", len(self.ngram2idx))
+        print("train vocab size is ", len(self.word2vec))
 
         return self.train_feature_dict, self.test_feature_dict
 
@@ -210,13 +210,13 @@ class FastTextDataPreProcess():
 
         if train_mode is True:
             for ngms in bo_ngrams:
-                idx = self.ngram2idx.get(ngms)
+                idx = self.word2vec.get(ngms)
                 if idx is None:
-                    idx = len(self.ngram2idx)
-                    self.ngram2idx[ngms] = idx
-                    self.idx2gram[idx] = ngms
+                    idx = len(self.word2vec)
+                    self.word2vec[ngms] = idx
+                    self.vec2words[idx] = ngms
 
-        processed_out = [self.ngram2idx[ng] if ng in self.ngram2idx else self.ngram2idx['UNK'] for ng in bo_ngrams]
+        processed_out = [self.word2vec[ng] if ng in self.word2vec else self.word2vec['UNK'] for ng in bo_ngrams]
 
         return processed_out