Question

The Government of India has set up NCPR (National Customer Preference Register) registry, which to some extent has reduced junk calls, but does not filter spam SMS. Although various datasets are available to test email spam detection algorithms, the datasets to train and test techniques for SMS spam detection are stil limited and small sized. Moreover, unlike emails, the length of text messages is short, that is, less statistically-differentiable information, due to which the availability of number of features required to detect spam SMS are less. Text messages are highly influenced by the presence of informal languages like regional words, idioms, phrases and abbreviations due to which email spam filtering methods fail in the case of SMS.​

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