Milestone 4

Metrics  :

• Date a set of articles of the same year for KL and compute the error (Marc)
• Cosine similarity and date an article for distance1 and chi-square (Cynthia)
• New metric: out of place measure (Tao)
• Sentence length and ponctuation marks. (Malik, Gil)

Synonyms (Nicolas):

• Opt for the thesaurus database of synonyms, because the original one was not exhaustive and correct enough to produce interesting graphs. Adapt the SQL schema.
• Completion of the web interface, add a [0,1] normalization functionality and increase the data resolution (mean over 5 years instead of 10).

Topic Clustering : (Jeremy and Farah)

• Represent the article in an article-term matrix format.
• Apply Latent Dirichlet Allocation (LDA) to the matrix