trfaq

Google supported this work by providing Google Cloud credit. Thank you Google for supporting the open source! 🎉

What is this?

At this repo, I'm releasing the training script and a full working inference example for my model mys/bert-base-turkish-cased-nli-mean-faq-mnr published on HuggingFace. Please note that the training code at finetune_tf.py is a simplified version of the original, which is intended for educational purposes and not optimized for anything. However, it contains an implementation of the Multiple Negatives Symmetric Ranking loss, and you can use it in your own work. Additionally, I cleaned and filtered the Turkish subset of the clips/mqa dataset, as it contains lots of mis-encoded texts. You can download this cleaned dataset here.

Model

This is a finetuned version of mys/bert-base-turkish-cased-nli-mean for FAQ retrieval, which is itself a finetuned version of dbmdz/bert-base-turkish-cased for NLI. It maps questions & answers to 768 dimensional vectors to be used for FAQ-style chatbots and answer retrieval in question-answering pipelines. It was trained on the Turkish subset of clips/mqa dataset after some cleaning/ filtering and with a Multiple Negatives Symmetric Ranking loss. Before finetuning, I added two special tokens to the tokenizer (i.e., for questions and for answers) and resized the model embeddings, so you need to prepend the relevant tokens to the sequences before feeding them into the model. Please have a look at my accompanying repo to see how it was finetuned and how it can be used in inference. The following code snippet is an excerpt from the inference at the repo.

Usage

see inference.py for a full working example.

" + q for q in questions] answers = ["" + a for a in answers] def answer_faq(model, tokenizer, questions, answers, return_similarities=False): q_len = len(questions) tokens = tokenizer(questions + answers, padding=True, return_tensors='tf') embs = model(**tokens)[0] attention_masks = tf.cast(tokens['attention_mask'], tf.float32) sample_length = tf.reduce_sum(attention_masks, axis=-1, keepdims=True) masked_embs = embs * tf.expand_dims(attention_masks, axis=-1) masked_embs = tf.reduce_sum(masked_embs, axis=1) / tf.cast(sample_length, tf.float32) a = tf.math.l2_normalize(masked_embs[:q_len, :], axis=1) b = tf.math.l2_normalize(masked_embs[q_len:, :], axis=1) similarities = tf.matmul(a, b, transpose_b=True) scores = tf.nn.softmax(similarities) results = list(zip(answers, scores.numpy().squeeze().tolist())) sorted_results = sorted(results, key=lambda x: x[1], reverse=True) sorted_results = [{"answer": answer.replace("", ""), "score": f"{score:.4f}"} for answer, score in sorted_results] return sorted_results for question in questions: results = answer_faq(model, tokenizer, [question], answers) print(question.replace("", "")) print(results) print("---------------------") ">

questions = [
    "Merhaba",
    "Nasılsın?",
    "Bireysel araç kiralama yapıyor musunuz?",
    "Kurumsal araç kiralama yapıyor musunuz?"
]

answers = [
    "Merhaba, size nasıl yardımcı olabilirim?",
    "İyiyim, teşekkür ederim. Size nasıl yardımcı olabilirim?",
    "Hayır, sadece Kurumsal Araç Kiralama operasyonları gerçekleştiriyoruz. Size başka nasıl yardımcı olabilirim?",
    "Evet, kurumsal araç kiralama hizmetleri sağlıyoruz. Size nasıl yardımcı olabilirim?"
]


questions = ["" + q for q in questions]
answers = ["" + a for a in answers]


def answer_faq(model, tokenizer, questions, answers, return_similarities=False):
    q_len = len(questions)
    tokens = tokenizer(questions + answers, padding=True, return_tensors='tf')
    embs = model(**tokens)[0]

    attention_masks = tf.cast(tokens['attention_mask'], tf.float32)
    sample_length = tf.reduce_sum(attention_masks, axis=-1, keepdims=True)
    masked_embs = embs * tf.expand_dims(attention_masks, axis=-1)
    masked_embs = tf.reduce_sum(masked_embs, axis=1) / tf.cast(sample_length, tf.float32)
    a = tf.math.l2_normalize(masked_embs[:q_len, :], axis=1)
    b = tf.math.l2_normalize(masked_embs[q_len:, :], axis=1)

    similarities = tf.matmul(a, b, transpose_b=True)
        
    scores = tf.nn.softmax(similarities)
    results = list(zip(answers, scores.numpy().squeeze().tolist()))
    sorted_results = sorted(results, key=lambda x: x[1], reverse=True)
    sorted_results = [{"answer": answer.replace("", ""), "score": f"{score:.4f}"} for answer, score in sorted_results]
    return sorted_results


for question in questions:
    results = answer_faq(model, tokenizer, [question], answers)
    print(question.replace("", ""))
    print(results)
    print("---------------------")

And the output is:

Merhaba
[{'answer': 'Merhaba, size nasıl yardımcı olabilirim?', 'score': '0.2931'}, {'answer': 'İyiyim, teşekkür ederim. Size nasıl yardımcı olabilirim?', 'score': '0.2751'}, {'answer': 'Hayır, sadece Kurumsal Araç Kiralama operasyonları gerçekleştiriyoruz. Size başka nasıl yardımcı olabilirim?', 'score': '0.2200'}, {'answer': 'Evet, kurumsal araç kiralama hizmetleri sağlıyoruz. Size nasıl yardımcı olabilirim?', 'score': '0.2118'}]
---------------------
Nasılsın?
[{'answer': 'İyiyim, teşekkür ederim. Size nasıl yardımcı olabilirim?', 'score': '0.2808'}, {'answer': 'Merhaba, size nasıl yardımcı olabilirim?', 'score': '0.2623'}, {'answer': 'Hayır, sadece Kurumsal Araç Kiralama operasyonları gerçekleştiriyoruz. Size başka nasıl yardımcı olabilirim?', 'score': '0.2320'}, {'answer': 'Evet, kurumsal araç kiralama hizmetleri sağlıyoruz. Size nasıl yardımcı olabilirim?', 'score': '0.2249'}]
---------------------
Bireysel araç kiralama yapıyor musunuz?
[{'answer': 'Hayır, sadece Kurumsal Araç Kiralama operasyonları gerçekleştiriyoruz. Size başka nasıl yardımcı olabilirim?', 'score': '0.2861'}, {'answer': 'Evet, kurumsal araç kiralama hizmetleri sağlıyoruz. Size nasıl yardımcı olabilirim?', 'score': '0.2768'}, {'answer': 'İyiyim, teşekkür ederim. Size nasıl yardımcı olabilirim?', 'score': '0.2215'}, {'answer': 'Merhaba, size nasıl yardımcı olabilirim?', 'score': '0.2156'}]
---------------------
Kurumsal araç kiralama yapıyor musunuz?
[{'answer': 'Evet, kurumsal araç kiralama hizmetleri sağlıyoruz. Size nasıl yardımcı olabilirim?', 'score': '0.3060'}, {'answer': 'Hayır, sadece Kurumsal Araç Kiralama operasyonları gerçekleştiriyoruz. Size başka nasıl yardımcı olabilirim?', 'score': '0.2929'}, {'answer': 'İyiyim, teşekkür ederim. Size nasıl yardımcı olabilirim?', 'score': '0.2066'}, {'answer': 'Merhaba, size nasıl yardımcı olabilirim?', 'score': '0.1945'}]
---------------------

Question and answer retrieval in Turkish with BERT

Related tags

Overview

trfaq

What is this?

Model

Usage

Owner

M. Yusuf Sarıgöz

Basic yet complete Machine Learning pipeline for NLP tasks

Perform sentiment analysis on textual data that people generally post on websites like social networks and movie review sites.

An automated program that helps customers of Pizza Palour place their pizza orders

Named-entity recognition using neural networks. Easy-to-use and state-of-the-art results.

Officile code repository for "A Game-Theoretic Perspective on Risk-Sensitive Reinforcement Learning"

Chinese version of GPT2 training code, using BERT tokenizer.

Simple bots or Simbots is a library designed to create simple bots using the power of python. This library utilises Intent, Entity, Relation and Context model to create bots .

SimCSE: Simple Contrastive Learning of Sentence Embeddings

A python script to prefab your scripts/text files, and re create them with ease and not have to open your browser to copy code or write code yourself

Unofficial implementation of Google's FNet: Mixing Tokens with Fourier Transforms

I label phrases on a scale of five values: negative, somewhat negative, neutral, somewhat positive, positive

TruthfulQA: Measuring How Models Imitate Human Falsehoods

Twewy-discord-chatbot - Build a Discord AI Chatbot that Speaks like Your Favorite Character

Natural language computational chemistry command line interface.

Estimation of the CEFR complexity score of a given word, sentence or text.

🌐 Translation microservice powered by AI

Training code for Korean multi-class sentiment analysis

The code for two papers: Feedback Transformer and Expire-Span.

Residual2Vec: Debiasing graph embedding using random graphs

Simple Text-To-Speech Bot For Discord