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from transformers import FlaxAutoModelForSeq2SeqLM |
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from transformers import AutoTokenizer |
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import textwrap |
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MODEL_NAME_OR_PATH = "flax-community/t5-recipe-generation" |
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tokenizer = AutoTokenizer.from_pretrained(MODEL_NAME_OR_PATH, use_fast=True) |
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model = FlaxAutoModelForSeq2SeqLM.from_pretrained(MODEL_NAME_OR_PATH) |
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prefix = "items: " |
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generation_kwargs = { |
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"max_length": 512, |
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"min_length": 64, |
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"no_repeat_ngram_size": 3, |
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"early_stopping": True, |
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"num_beams": 5, |
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"length_penalty": 1.5, |
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} |
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special_tokens = tokenizer.all_special_tokens |
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tokens_map = { |
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"<sep>": "--", |
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"<section>": "\n" |
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} |
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def skip_special_tokens(text, special_tokens): |
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for token in special_tokens: |
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text = text.replace(token, '') |
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return text |
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def target_postprocessing(texts, special_tokens): |
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if not isinstance(texts, list): |
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texts = [texts] |
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new_texts = [] |
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for text in texts: |
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text = skip_special_tokens(text, special_tokens) |
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for k, v in tokens_map.items(): |
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text = text.replace(k, v) |
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new_texts.append(text) |
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return new_texts |
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def generation_function(texts): |
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_inputs = texts if isinstance(texts, list) else [texts] |
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inputs = [prefix + inp for inp in _inputs] |
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inputs = tokenizer( |
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inputs, |
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max_length=256, |
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padding="max_length", |
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truncation=True, |
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return_tensors='jax' |
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) |
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input_ids = inputs.input_ids |
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attention_mask = inputs.attention_mask |
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output_ids = model.generate( |
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input_ids=input_ids, |
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attention_mask=attention_mask, |
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**generation_kwargs |
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) |
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generated = output_ids.sequences |
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generated_recipe = target_postprocessing( |
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tokenizer.batch_decode(generated, skip_special_tokens=False), |
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special_tokens |
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) |
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return generated_recipe |
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items = [ |
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"macaroni, butter, salt, bacon, milk, flour, pepper, cream corn", |
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"provolone cheese, bacon, bread, ginger" |
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] |
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generated = generation_function(items) |
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for text in generated: |
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sections = text.split("\n") |
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for section in sections: |
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section = section.strip() |
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if section.startswith("title:"): |
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section = section.replace("title:", "") |
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headline = "TITLE" |
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elif section.startswith("ingredients:"): |
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section = section.replace("ingredients:", "") |
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headline = "INGREDIENTS" |
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elif section.startswith("directions:"): |
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section = section.replace("directions:", "") |
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headline = "DIRECTIONS" |
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if headline == "TITLE": |
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print(f"[{headline}]: {section.strip().capitalize()}") |
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else: |
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section_info = [f" - {i+1}: {info.strip().capitalize()}" for i, info in enumerate(section.split("--"))] |
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print(f"[{headline}]:") |
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print("\n".join(section_info)) |
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print("-" * 130) |
