Duplicate from Jayyydyyy/english-tokipona-translator

Co-authored-by: Jordan Myers <Jayyydyyy@users.noreply.huggingface.co>

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.gitignore

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+.venv
+__pycache__

README.md

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+---
+title: English / toki pona Translator
+emoji: 💬
+colorFrom: indigo
+colorTo: purple
+sdk: gradio
+sdk_version: 3.15.0
+app_file: app.py
+pinned: false
+duplicated_from: Jayyydyyy/english-tokipona-translator
+---
+
+Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference

app.py

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+import gradio as gr
+from transformers import AutoTokenizer, AutoModelForSeq2SeqLM, pipeline
+import torch
+
+model = AutoModelForSeq2SeqLM.from_pretrained("Jayyydyyy/m2m100_418m_tokipona")
+tokenizer = AutoTokenizer.from_pretrained("facebook/m2m100_418M")
+device = "cuda:0" if torch.cuda.is_available() else "cpu"
+LANG_CODES = {
+    "English":"en",
+    "toki pona":"tl"
+}
+
+def translate(text, src_lang, tgt_lang, candidates:int):
+    """
+    Translate the text from source lang to target lang
+    """
+
+    src = LANG_CODES.get(src_lang)
+    tgt = LANG_CODES.get(tgt_lang)
+
+    tokenizer.src_lang = src
+    tokenizer.tgt_lang = tgt
+
+    ins = tokenizer(text, return_tensors='pt').to(device)
+
+    gen_args = {
+            'return_dict_in_generate': True,
+            'output_scores': True,
+            'output_hidden_states': True,
+            'length_penalty': 0.0,  # don't encourage longer or shorter output,
+            'num_return_sequences': candidates,
+            'num_beams':candidates,
+            'forced_bos_token_id': tokenizer.lang_code_to_id[tgt]
+        }
+    
+
+    outs = model.generate(**{**ins, **gen_args})
+    output = tokenizer.batch_decode(outs.sequences, skip_special_tokens=True)
+
+    return '\n'.join(output)
+
+with gr.Blocks() as app:
+    markdown="""
+    # An English / toki pona Neural Machine Translation App!
+    
+    ### toki a! 💬
+
+    This is an english to toki pona / toki pona to english neural machine translation app.
+
+    Input your text to translate, a source language and target language, and desired number of return sequences! 
+
+    ### Grammar Regularization
+    An interesting quirk of training a many-to-many translation model is that pseudo-grammar correction 
+    can be achieved by translating *from* **language A** *to* **language A**
+    
+    Remember, this can ***approximate*** grammaticality, but it isn't always the best.
+    
+    For example, "mi li toki e toki pona" (Source Language: toki pona & Target Language: toki pona) will result in: 
+    - ['mi toki e toki pona.', 'mi toki pona.', 'mi toki e toki pona']
+    - (Thus, the ungrammatical "li" is dropped)
+
+    ### Model and Data
+    This app utilizes a fine-tuned version of Facebook/Meta AI's M2M100 418M param model. 
+    
+    By leveraging the pretrained weights of the massively multilingual M2M100 model, 
+    we can jumpstart our transfer learning to accomplish machine translation for toki pona!
+    
+    The model was fine-tuned on the English/toki pona bitexts found at [https://tatoeba.org/](https://tatoeba.org/)
+    
+    ### This app is a work in progress and obviously not all translations will be perfect. 
+    In addition to parameter quantity and the hyper-parameters used while training, 
+    the *quality of data* found on Tatoeba directly influences the perfomance of projects like this! 
+
+    If you wish to contribute, please add high quality and diverse translations to Tatoeba!
+    """
+
+    with gr.Row():
+        gr.Markdown(markdown)
+        with gr.Column():
+            input_text = gr.components.Textbox(label="Input Text", value="Raccoons are fascinating creatures, but I prefer opossums.")
+            source_lang = gr.components.Dropdown(label="Source Language", value="English", choices=list(LANG_CODES.keys()))
+            target_lang = gr.components.Dropdown(label="Target Language", value="toki pona", choices=list(LANG_CODES.keys()))
+            return_seqs = gr.Slider(label="Number of return sequences", value=3, minimum=1, maximum=12, step=1)
+            
+            inputs=[input_text, source_lang, target_lang, return_seqs]
+            outputs = gr.Textbox()
+
+            translate_btn = gr.Button("Translate! | o ante toki!")
+            translate_btn.click(translate, inputs=inputs, outputs=outputs)
+
+            gr.Examples(
+                [
+                    ["Hello! How are you?", "English", "toki pona", 3],
+                    ["toki a! ilo pi ante toki ni li pona!", "toki pona", "English",  3],
+                    ["mi li toki e toki pona", "toki pona", "toki pona", 3],
+                ],
+                inputs=inputs
+            )
+
+app.launch()

requirements.txt

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+torch
+transformers
+gradio
+sentencepiece