NLP Interview Questions || Coding Tag

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NLP Interview Question

• By Coding Tag

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What is perplexity?

• Perplexity is defined as a inability to deal with
  or to understand something complicated .It is the
  inverse probability of the test set normalized by
  the number of words.

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What is dependency parsing in NLP?

• Dependency parsing or Syntactic parsing is the
  atask to recognise a sentence and assigning a
  syntactic structure in it.
• The widely used syntactic structure in NLP is the
  parse tree which is generated using some parsing
  algorithms those parse trees are useful in
  various day to day applications like checking
  grammar in any sentence, it plays a critical role
  in the semantic analysis stage.

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What is a word Embedding in NLP ?

• Word Embedding is the process of Natural Language
  Processing which is based on language modeling
  and feature learning.
• Through the word embossing technique, the mapping
  of the vectors for words in the given document is
  done in context to the real numbers.

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Define Batch Norm and its limits ?

• Batch Normalization is a limit covariate shift by
  normalizing the activations of each layer
  (transforming the inputs to be mean 0 and unit
  variance)
• In each training iteration, for each layer, we
  first compute its activations as usual. Then, we
  normalize the activations of each node by
  subtracting its mean and dividing by its standard
  deviation estimating both quantities based on the
  statistics of the current the current minibatch.

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Mention some Applications of NLP?

• Some of the applications of Natural Language
  Processing are
• Name Entity Recognition
• Text Summarization and Classification
• Language Model Building
• Speech Recognition
• Spell Checking
• Machine Translation
• Character Recognition

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What is the regular expression

• Regular language is that , can be expressed with
  a regular expression or a non-deterministic
  finite automata.
• Regular expressions are used to show regular
  languages.They can represent language and
  operations on them
• set of vowels -
  ( a ? e ? i ? o ? u )
• a followed by 0 or more b -
  (a.b)
• any no. of vowels followed - v.c
  ( where v vowels and c consonants)
• by any no. of consonants

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