



# Usage:
# ./gen-card-allenai-wmt16.py

import os
from pathlib import Path






def      lowerCAmelCase__		(   lowerCamelCase_		:		Optional[Any]	,lowerCamelCase_		:		Any	,lowerCamelCase_		:		Tuple	,lowerCamelCase_		:		List[Any]):





				'''simple docstring'''

				lowerCAmelCase__					:    Dict												=					{
				    '''en''': '''Machine learning is great, isn\'t it?''',
				    '''ru''': '''Машинное обучение - это здорово, не так ли?''',
				    '''de''': '''Maschinelles Lernen ist großartig, nicht wahr?''',
				}

				# BLUE scores as follows:
				# "pair": [fairseq, transformers]
				lowerCAmelCase__					:    Any												=					{
				    '''wmt16-en-de-dist-12-1''': [28.3, 27.52],
				    '''wmt16-en-de-dist-6-1''': [27.4, 27.11],
				    '''wmt16-en-de-12-1''': [26.9, 25.75],
				}
				lowerCAmelCase__					:    int												=					f"""{src_lang}-{tgt_lang}"""

				lowerCAmelCase__					:    List[Any]												=					f"""
---
language:
- {src_lang}
- {tgt_lang}
thumbnail:
tags:
- translation
- wmt16
- allenai
license: apache-2.0
datasets:
- wmt16
metrics:
- bleu
---

# FSMT

## Model description

This is a ported version of fairseq-based [wmt16 transformer](https://github.com/jungokasai/deep-shallow/) for {src_lang}-{tgt_lang}.

For more details, please, see [Deep Encoder, Shallow Decoder: Reevaluating the Speed-Quality Tradeoff in Machine Translation](https://arxiv.org/abs/2006.10369).

All 3 models are available:

* [wmt16-en-de-dist-12-1](https://huggingface.co/allenai/wmt16-en-de-dist-12-1)
* [wmt16-en-de-dist-6-1](https://huggingface.co/allenai/wmt16-en-de-dist-6-1)
* [wmt16-en-de-12-1](https://huggingface.co/allenai/wmt16-en-de-12-1)


## Intended uses & limitations

#### How to use

```python
from transformers import FSMTForConditionalGeneration, FSMTTokenizer
mname = \"allenai/{model_name}\"
tokenizer = FSMTTokenizer.from_pretrained(mname)
model = FSMTForConditionalGeneration.from_pretrained(mname)

input = \"{texts[src_lang]}\"
input_ids = tokenizer.encode(input, return_tensors=\"pt\")
outputs = model.generate(input_ids)
decoded = tokenizer.decode(outputs[0], skip_special_tokens=True)
print(decoded) # {texts[tgt_lang]}

```

#### Limitations and bias


## Training data

Pretrained weights were left identical to the original model released by allenai. For more details, please, see the [paper](https://arxiv.org/abs/2006.10369).

## Eval results

Here are the BLEU scores:

model   | fairseq | transformers
-------|---------|----------
{model_name}  | {scores[model_name][0]} | {scores[model_name][1]}

The score is slightly below the score reported in the paper, as the researchers don't use `sacrebleu` and measure the score on tokenized outputs. `transformers` score was measured using `sacrebleu` on detokenized outputs.

The score was calculated using this code:

```bash
git clone https://github.com/huggingface/transformers
cd transformers
export PAIR={pair}
export DATA_DIR=data/$PAIR
export SAVE_DIR=data/$PAIR
export BS=8
export NUM_BEAMS=5
mkdir -p $DATA_DIR
sacrebleu -t wmt16 -l $PAIR --echo src > $DATA_DIR/val.source
sacrebleu -t wmt16 -l $PAIR --echo ref > $DATA_DIR/val.target
echo $PAIR
PYTHONPATH=\"src:examples/seq2seq\" python examples/seq2seq/run_eval.py allenai/{model_name} $DATA_DIR/val.source $SAVE_DIR/test_translations.txt --reference_path $DATA_DIR/val.target --score_path $SAVE_DIR/test_bleu.json --bs $BS --task translation --num_beams $NUM_BEAMS
```

## Data Sources

- [training, etc.](http://www.statmt.org/wmt16/)
- [test set](http://matrix.statmt.org/test_sets/newstest2016.tgz?1504722372)


### BibTeX entry and citation info

```
@misc{{kasai2020deep,
    title={{Deep Encoder, Shallow Decoder: Reevaluating the Speed-Quality Tradeoff in Machine Translation}},
    author={{Jungo Kasai and Nikolaos Pappas and Hao Peng and James Cross and Noah A. Smith}},
    year={{2020}},
    eprint={{2006.10369}},
    archivePrefix={{arXiv}},
    primaryClass={{cs.CL}}
}}
```

"""
				model_card_dir.mkdir(parents=lowerCamelCase_	,exist_ok=lowerCamelCase_)
				lowerCAmelCase__					:    Union[str, Any]												=					os.path.join(lowerCamelCase_	,'''README.md''')
				print(f"""Generating {path}""")
				with open(lowerCamelCase_	,'''w'''	,encoding='''utf-8''') as f:
								f.write(lowerCamelCase_)


# make sure we are under the root of the project
__snake_case    :		Dict  =Path(__file__).resolve().parent.parent.parent
__snake_case    :		Dict  =repo_dir / 'model_cards'

for model_name in ["wmt16-en-de-dist-12-1", "wmt16-en-de-dist-6-1", "wmt16-en-de-12-1"]:
							__snake_case    :		List[str]  =model_cards_dir / 'allenai' / model_name
							write_model_card(model_card_dir, src_lang='en', tgt_lang='de', model_name=model_name)






import string

import numpy






def      lowerCAmelCase__		(   lowerCamelCase_		:		int	,lowerCamelCase_		:		int):





				'''simple docstring'''

				return b if a == 0 else greatest_common_divisor(b % a	,lowerCamelCase_)



class 	lowerCamelCase__      :




		'''simple docstring'''



		snake_case_     =string.ascii_uppercase + string.digits
		# This cipher takes alphanumerics into account
		# i.e. a total of 36 characters

		# take x and return x % len(key_string)
		snake_case_     =numpy.vectorize(lambda lowerCamelCase__: x % 36)

		snake_case_     =numpy.vectorize(lowerCamelCase__)



		def __init__(self		,__lowerCamelCase			)					->      None:

						"""simple docstring"""






						lowerCAmelCase__					:    Tuple												=					self.modulus(__lowerCamelCase			)  # mod36 calc's on the encrypt key
						self.check_determinant()  # validate the determinant of the encryption key
						lowerCAmelCase__					:    Optional[int]												=					encrypt_key.shape[0]



		def 		lowerCAmelCase__				(self		,__lowerCamelCase			)					->      int:

						"""simple docstring"""






						return self.key_string.index(__lowerCamelCase			)



		def 		lowerCAmelCase__				(self		,__lowerCamelCase			)					->      str:

						"""simple docstring"""






						return self.key_string[round(__lowerCamelCase			)]



		def 		lowerCAmelCase__				(self			)					->      None:

						"""simple docstring"""






						lowerCAmelCase__					:    Tuple												=					round(numpy.linalg.det(self.encrypt_key			)			)

						if det < 0:
										lowerCAmelCase__					:    str												=					det % len(self.key_string			)

						lowerCAmelCase__					:    Optional[Any]												=					len(self.key_string			)
						if greatest_common_divisor(__lowerCamelCase		,len(self.key_string			)			) != 1:
										lowerCAmelCase__					:    List[str]												=					(
										    f"""determinant modular {req_l} of encryption key({det}) """
										    f"""is not co prime w.r.t {req_l}.\nTry another key."""
										)
										raise ValueError(__lowerCamelCase			)



		def 		lowerCAmelCase__				(self		,__lowerCamelCase			)					->      str:

						"""simple docstring"""






						lowerCAmelCase__					:    Dict												=					[char for char in text.upper() if char in self.key_string]

						lowerCAmelCase__					:    int												=					chars[-1]
						while len(__lowerCamelCase			) % self.break_key != 0:
										chars.append(__lowerCamelCase			)

						return "".join(__lowerCamelCase			)



		def 		lowerCAmelCase__				(self		,__lowerCamelCase			)					->      str:

						"""simple docstring"""






						lowerCAmelCase__					:    List[str]												=					self.process_text(text.upper()			)
						lowerCAmelCase__					:    str												=					''''''

						for i in range(0		,len(__lowerCamelCase			) - self.break_key + 1		,self.break_key			):
										lowerCAmelCase__					:    Any												=					text[i : i + self.break_key]
										lowerCAmelCase__					:    Dict												=					[self.replace_letters(__lowerCamelCase			) for char in batch]
										lowerCAmelCase__					:    int												=					numpy.array([vec]			).T
										lowerCAmelCase__					:    Union[str, Any]												=					self.modulus(self.encrypt_key.dot(__lowerCamelCase			)			).T.tolist()[
										    0
										]
										lowerCAmelCase__					:    Union[str, Any]												=					''''''.join(
										    self.replace_digits(__lowerCamelCase			) for num in batch_encrypted			)
										encrypted += encrypted_batch

						return encrypted



		def 		lowerCAmelCase__				(self			)					->      numpy.ndarray:

						"""simple docstring"""






						lowerCAmelCase__					:    Tuple												=					round(numpy.linalg.det(self.encrypt_key			)			)

						if det < 0:
										lowerCAmelCase__					:    int												=					det % len(self.key_string			)
						lowerCAmelCase__					:    Dict												=					None
						for i in range(len(self.key_string			)			):
										if (det * i) % len(self.key_string			) == 1:
														lowerCAmelCase__					:    Optional[Any]												=					i
														break

						lowerCAmelCase__					:    Optional[Any]												=					(
						    det_inv
						    * numpy.linalg.det(self.encrypt_key			)
						    * numpy.linalg.inv(self.encrypt_key			)
						)

						return self.to_int(self.modulus(__lowerCamelCase			)			)



		def 		lowerCAmelCase__				(self		,__lowerCamelCase			)					->      str:

						"""simple docstring"""






						lowerCAmelCase__					:    str												=					self.make_decrypt_key()
						lowerCAmelCase__					:    List[str]												=					self.process_text(text.upper()			)
						lowerCAmelCase__					:    Optional[Any]												=					''''''

						for i in range(0		,len(__lowerCamelCase			) - self.break_key + 1		,self.break_key			):
										lowerCAmelCase__					:    List[Any]												=					text[i : i + self.break_key]
										lowerCAmelCase__					:    Tuple												=					[self.replace_letters(__lowerCamelCase			) for char in batch]
										lowerCAmelCase__					:    Optional[Any]												=					numpy.array([vec]			).T
										lowerCAmelCase__					:    Tuple												=					self.modulus(decrypt_key.dot(__lowerCamelCase			)			).T.tolist()[0]
										lowerCAmelCase__					:    Optional[int]												=					''''''.join(
										    self.replace_digits(__lowerCamelCase			) for num in batch_decrypted			)
										decrypted += decrypted_batch

						return decrypted






def      lowerCAmelCase__		(   ):





				'''simple docstring'''

				lowerCAmelCase__					:    Any												=					int(input('''Enter the order of the encryption key: '''))
				lowerCAmelCase__					:    Union[str, Any]												=					[]

				print('''Enter each row of the encryption key with space separated integers''')
				for _ in range(lowerCamelCase_):
								lowerCAmelCase__					:    int												=					[int(lowerCamelCase_) for x in input().split()]
								hill_matrix.append(lowerCamelCase_)

				lowerCAmelCase__					:    List[str]												=					HillCipher(numpy.array(lowerCamelCase_))

				print('''Would you like to encrypt or decrypt some text? (1 or 2)''')
				lowerCAmelCase__					:    List[Any]												=					input('''\n1. Encrypt\n2. Decrypt\n''')
				if option == "1":
								lowerCAmelCase__					:    Optional[int]												=					input('''What text would you like to encrypt?: ''')
								print('''Your encrypted text is:''')
								print(hc.encrypt(lowerCamelCase_))
				elif option == "2":
								lowerCAmelCase__					:    Dict												=					input('''What text would you like to decrypt?: ''')
								print('''Your decrypted text is:''')
								print(hc.decrypt(lowerCamelCase_))


if __name__ == "__main__":
							import doctest

							doctest.testmod()

							main()

