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ETNLP: Embedding Toolkit for NLP Tasks

Project description

Table of contents

  1. Introduction
  2. More about ETNLP
  3. Installation and How to Use
  4. Download Resources

I. ETNLP: A Toolkit for Extraction, Evaluation and Visualization of Pre-trained Word Embeddings

A glimpse of ETNLP:

II. More about ETNLP :

1. Embedding Evaluator:

To compare quality of embedding models on the word analogy task.

  • Input: a pre-trained embedding vector file (word2vec format), and word analogy file.
  • Output: (1) evaluate quality of the embedding model based on the MAP/P@10 score, (2) Paired t-tests to show significant level between different word embeddings.

1.1. Note: The word analogy list is created by:

  • Adopt from the English list by selecting suitable categories and translating to the target language (i.e., Vietnamese).
  • Removing inappropriate categories (i.e., category 6, 10, 11, 14) in the target language (i.e., Vietnamese).
  • Adding custom category that is suitable for the target language (e.g., cities and their zones in Vietnam for Vietnamese). Since most of this process is automatically done, it can be applied in other languages as well.

1.2. Selected categories for Vietnamese:

  1. capital-common-countries
  2. capital-world
  3. currency: E.g., Algeria | dinar | Angola | kwanza
  4. city-in-zone (Vietnam's cities and its zone)
  5. family (boy|girl | brother | sister)
  6. gram1-adjective-to-adverb (NOT USED)
  7. gram2-opposite (e.g., acceptable | unacceptable | aware | unaware)
  8. gram3-comparative (e.g., bad | worse | big | bigger)
  9. gram4-superlative (e.g., bad | worst | big | biggest)
  10. gram5-present-participle (NOT USED)
  11. gram6-nationality-adjective-nguoi-tieng (e.g., Albania | Albanian | Argentina | Argentinean)
  12. gram7-past-tense (NOT USED)
  13. gram8-plural-cac-nhung (e.g., banana | bananas | bird | birds) (NOT USED)
  14. gram9-plural-verbs (NOT USED)

1.3 Evaluation results (in details)

  • Analogy: Word Analogy Task

  • NER (w): NER task with hyper-parameters selected from the best F1 on validation set.

  • NER (w.o): NER task without selecting hyper-parameters from the validation set.

 Model NER.w NER.w.o Analogy
BiLC3 + w2v 89.01 89.41 0.4796
BiLC3 + Bert_Base 88.26 89.91 0.4609
BiLC3 + w2v_c2v 89.46 89.46 0.4796
BiLC3 + fastText 89.65 89.84 0.4970
BiLC3 + Elmo 89.67 90.84 0.4999
BiLC3 + MULTI_WC_F_E_B 91.09 91.75 0.4906

2. Embedding Extractor: To extract embedding vectors for other tasks.

  • Input: (1) list of input embeddings, (2) a vocabulary file.
  • Output: embedding vectors of the given vocab file in .txt, i.e., each line conains the embedding for a word. The file then be compressed in .gz format. This format is widely used in existing NLP Toolkits (e.g., Reimers et al. [1]).

Extra options:

  • -input-c2v: character embedding file
  • solveoov:1: to solve OOV words of the 1st embedding. Similarly for more than one embedding: e.g., solveoov:1:2.

[1] Nils Reimers and Iryna Gurevych, Reporting Score Distributions Makes a Difference: Performance Study of LSTM-networks for Sequence Tagging, 2017,, arXiv.

3. Visualizer: to explore the embedding space and compare between different embeddings.

Screenshot of viewing multiple-embeddings side-by-side

Alt text

Screenshot of viewing each embedding interactively

Alt text

III. Installation and How to use ETNLP

1. Installation:

From source codes:

  1. cd src/codes/
  2. python install

From pip

  1. pip install etnlp

2. Examples

  1. cd src/examples
  2. python
  3. python
  4. python
  5. python

3. Visualization

Side-by-side visualization:

  1. sh src/codes/

Interactive visualization:

  1. sh src/codes/

IV. Available Lexical Resources

1. Word Analogy List for Vietnamese

 Word Analogy List Download Link (NER Task) Download Link (General)
Vietnamese (This work) Link1 [Link1]
English (Mirkolov et al. [2]) [Link2] [Link2]
Portuguese (Hartmann et al. [3]) [Link3] Link3

2. Multiple pre-trained embedding models for Vietnamese

  • Training data: Wiki in Vietnamese:
 # of sentences # of tokenized words
 6,685,621 114,997,587
  • Download Pre-trained Embeddings:
    (Note: The MULTI_WC_F_E_B is the concatenation of four embeddings: W2V_C2V, fastText, ELMO, and Bert_Base.)
 Embedding Model Download Link (NER Task) Download Link (AIVIVN SentiTask) Download Link (General)
w2v Link1 (dim=300) [Link1] [Link1]
w2v_c2v Link2 (dim=300) [Link2] [Link2]
fastText Link3 (dim=300) [Link3] [Link3]
Elmo Link4 (dim=1024) Link4 (dim=1024) [Link4]
Bert_base Link5 (dim=768) [Link5] [Link5]
MULTI_WC_F_E_B Link6 (dim=2392) [Link6] [Link6]

Project details

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