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Transfer Learning for Natural Language Processing

Name: Transfer Learning for Natural Language Processing
Author: Paul Azunre
ISBN: 9781617297267

by Paul Azunre

August 2021

Intermediate to advanced

272 pages

7h 54m

English

Manning Publications

Audiobook available

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Transfer Learning for Natural Language Processing
Copyright
dedication
contents
front matter
prefaceacknowledgmentsabout this bookWho should read this book?Road mapSoftware requirementsAbout the codeliveBook discussion forumabout the authorabout the cover illustration
Part 1 Introduction and overview
1 What is transfer learning?
1.1 Overview of representative NLP tasks1.2 Understanding NLP in the context of AI1.2.1 Artificial intelligence (AI)1.2.2 Machine learning1.2.3 Natural language processing (NLP)1.3 A brief history of NLP advances1.3.1 General overview1.3.2 Recent transfer learning advances1.4 Transfer learning in computer vision1.4.1 General overview1.4.2 Pretrained ImageNet models1.4.3 Fine-tuning pretrained ImageNet models1.5 Why is NLP transfer learning an exciting topic to study now?Summary
2 Getting started with baselines: Data preprocessing
2.1 Preprocessing email spam classification example data2.1.1 Loading and visualizing the Enron corpus2.1.2 Loading and visualizing the fraudulent email corpus2.1.3 Converting the email text into numbers2.2 Preprocessing movie sentiment classification example data2.3 Generalized linear models2.3.1 Logistic regression2.3.2 Support vector machines (SVMs)Summary
3 Getting started with baselines: Benchmarking and optimization
3.1 Decision-tree-based models3.1.1 Random forests (RFs)3.1.2 Gradient-boosting machines (GBMs)3.2 Neural network models3.2.1 Embeddings from Language Models (ELMo)3.2.2 Bidirectional Encoder Representations from Transformers (BERT)3.3 Optimizing performance3.3.1 Manual hyperparameter tuning3.3.2 Systematic hyperparameter tuningSummary
Part 2 Shallow transfer learning and deep transfer learning with recurrent neural networks (RNNs)

4 Shallow transfer learning for NLP
4.1 Semisupervised learning with pretrained word embeddings4.2 Semisupervised learning with higher-level representations4.3 Multitask learning4.3.1 Problem setup and a shallow neural single-task baseline4.3.2 Dual-task experiment4.4 Domain adaptationSummary
5 Preprocessing data for recurrent neural network deep transfer learning experiments
5.1 Preprocessing tabular column-type classification data5.1.1 Obtaining and visualizing tabular data5.1.2 Preprocessing tabular data5.1.3 Encoding preprocessed data as numbers5.2 Preprocessing fact-checking example data5.2.1 Special problem considerations5.2.2 Loading and visualizing fact-checking dataSummary
6 Deep transfer learning for NLP with recurrent neural networks
6.1 Semantic Inference for the Modeling of Ontologies (SIMOn)6.1.1 General neural architecture overview6.1.2 Modeling tabular data6.1.3 Application of SIMOn to tabular column-type classification data6.2 Embeddings from Language Models (ELMo)6.2.1 ELMo bidirectional language modeling6.2.2 Application to fake news detection6.3 Universal Language Model Fine-Tuning (ULMFiT)6.3.1 Target task language model fine-tuning6.3.2 Target task classifier fine-tuningSummary
Part 3 Deep transfer learning with transformers and adaptation strategies
7 Deep transfer learning for NLP with the transformer and GPT
7.1 The transformer7.1.1 An introduction to the transformers library and attention visualization7.1.2 Self-attention7.1.3 Residual connections, encoder-decoder attention, and positional encoding7.1.4 Application of pretrained encoder-decoder to translation7.2 The Generative Pretrained Transformer7.2.1 Architecture overview7.2.2 Transformers pipelines introduction and application to text generation7.2.3 Application to chatbotsSummary
8 Deep transfer learning for NLP with BERT and multilingual BERT
8.1 Bidirectional Encoder Representations from Transformers (BERT)8.1.1 Model architecture8.1.2 Application to question answering8.1.3 Application to fill in the blanks and next-sentence prediction tasks8.2 Cross-lingual learning with multilingual BERT (mBERT)8.2.1 Brief JW300 dataset overview8.2.2 Transfer mBERT to monolingual Twi data with the pretrained tokenizer8.2.3 mBERT and tokenizer trained from scratch on monolingual Twi dataSummary
9 ULMFiT and knowledge distillation adaptation strategies
9.1 Gradual unfreezing and discriminative fine-tuning9.1.1 Pretrained language model fine-tuning9.1.2 Target task classifier fine-tuning9.2 Knowledge distillation9.2.1 Transfer DistilmBERT to monolingual Twi data with pretrained tokenizerSummary
10 ALBERT, adapters, and multitask adaptation strategies
10.1 Embedding factorization and cross-layer parameter sharing10.1.1 Fine-tuning pretrained ALBERT on MDSD book reviews10.2 Multitask fine-tuning10.2.1 General Language Understanding Dataset (GLUE)10.2.2 Fine-tuning on a single GLUE task10.2.3 Sequential adaptation10.3 AdaptersSummary
11 Conclusions
11.1 Overview of key concepts11.2 Other emerging research trends11.2.1 RoBERTa11.2.2 GPT-311.2.3 XLNet11.2.4 BigBird11.2.5 Longformer11.2.6 Reformer11.2.7 T511.2.8 BART11.2.9 XLM11.2.10 TAPAS11.3 Future of transfer learning in NLP11.4 Ethical and environmental considerations11.5 Staying up-to-date11.5.1 Kaggle and Zindi competitions11.5.2 arXiv11.5.3 News and social media (Twitter)11.6 Final wordsSummary
appendix A Kaggle primer
A.1 Free GPUs with Kaggle kernelsA.2 Competitions, discussion, and blog
appendix B Introduction to fundamental deep learning tools
B.1 Stochastic gradient descentB.2 TensorFlowB.3 PyTorchB.4 Keras, fast.ai, and Transformers by Hugging Face
index

Content preview from Transfer Learning for Natural Language Processing

6 Deep transfer learning for NLP with recurrent neural networks

This chapter covers

Three representative modeling architectures for transfer learning in NLP relying on RNNs
Applying these methods to the two problems introduced in the previous chapter
Transferring knowledge obtained from training on simulated data to real labeled data
An introduction to some more sophisticated model adaptation strategies via ULMFiT

In the previous chapter, we introduced two example problems for the experiment we will conduct in this chapter—column-type classification and fake news detection. Recall that the goal of the experiment is to study the deep transfer learning methods for NLP that rely on recurrent neural networks (RNNs) for key functions. In particular, ...

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Transfer Learning for Natural Language Processing

by Paul Azunre

6 Deep transfer learning for NLP with recurrent neural networks

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