Difference between revisions of "Continuous Bag-of-Words (CBoW)"

From
Jump to: navigation, search
(Created page with "{{#seo: |title=PRIMO.ai |titlemode=append |keywords=artificial, intelligence, machine, learning, models, algorithms, data, singularity, moonshot, Tensorflow, Google, Nvidia, M...")
 
Line 10: Line 10:
 
* [[Bag-of-Words (BOW)]]
 
* [[Bag-of-Words (BOW)]]
 
* [[Natural Language Processing (NLP)]]
 
* [[Natural Language Processing (NLP)]]
 +
* [[Word2Vec]]
 +
* [[Skip-Gram]]
 +
 
* [[Scikit-learn]] Machine Learning in Python, Simple and efficient tools for data mining and data analysis; Built on NumPy, SciPy, and matplotlib
 
* [[Scikit-learn]] Machine Learning in Python, Simple and efficient tools for data mining and data analysis; Built on NumPy, SciPy, and matplotlib
 
* [[Term Frequency, Inverse Document Frequency (TF-IDF)]]
 
* [[Term Frequency, Inverse Document Frequency (TF-IDF)]]
* [[Word2Vec]]
 
 
* [[Doc2Vec]]
 
* [[Doc2Vec]]
* [[Skip-Gram]]
+
 
 
* [[Global Vectors for Word Representation (GloVe)]]
 
* [[Global Vectors for Word Representation (GloVe)]]
 
* [[Feature Exploration/Learning]]
 
* [[Feature Exploration/Learning]]
  
scikit-learn: Bag-of-Words = Count Vectorizer
+
The CBOW model architecture tries to predict the current target word (the center word) based on the source context words (surrounding words). Considering a simple sentence, “the quick brown fox jumps over the lazy dog”, this can be pairs of (context_window, target_word) where if we consider a context window of size 2, we have examples like ([quick, fox], brown), ([the, brown], quick), ([the, dog], lazy) and so on. Thus the model tries to predict the target_word based on the context_window words. [http://towardsdatascience.com/understanding-feature-engineering-part-4-deep-learning-methods-for-text-data-96c44370bbfa A hands-on intuitive approach to Deep Learning Methods for Text Data — Word2Vec, GloVe and FastText | Dipanjan Sarkar - Towards Data Science]
  
One common approach for exBag-of-Wordstracting features from text is to use the bag of words model: a model where for each document, an article in our case, the presence (and often the frequency) of words is taken into consideration, but the order in which they occur is ignored.
 
  
<youtube>aCdg-d_476Y</youtube>
+
<youtube>uskth3b6H_A</youtube>
<youtube>OGK9SHt8SWg</youtube>
+
<youtube>yBmtXtVya9A</youtube>
<youtube>9Z1MgTGQHQI</youtube>
+
<youtube>UqRCEmrv1gQ</youtube>
<youtube>IZAKJMgUmWc</youtube>
+
<youtube>cNnqdz_L-eE</youtube>

Revision as of 14:13, 12 July 2019

YouTube search... ...Google search

The CBOW model architecture tries to predict the current target word (the center word) based on the source context words (surrounding words). Considering a simple sentence, “the quick brown fox jumps over the lazy dog”, this can be pairs of (context_window, target_word) where if we consider a context window of size 2, we have examples like ([quick, fox], brown), ([the, brown], quick), ([the, dog], lazy) and so on. Thus the model tries to predict the target_word based on the context_window words. A hands-on intuitive approach to Deep Learning Methods for Text Data — Word2Vec, GloVe and FastText | Dipanjan Sarkar - Towards Data Science