Patent ID: 11914960
Assignee: TATA CONSULTANCY SERVICES LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 3:
4. A system for statistical subject identification comprising:
an input/output interface to receive a plurality of input data from a user, wherein the plurality of input data includes text strings, images, audios, and videos;
one or more hardware processors;
a memory in communication with the one or more hardware processors, wherein the one or more hardware processors are configured to execute programmed instructions stored in the memory, to:
convert the received images, audios, and videos into text strings using a transcription model;
pre-process the received and converted text strings to obtain pre-processed text strings and n-grams corresponding to each of the pre-processed text strings;
compute a frequency distribution of the n-grams for the pre-processed text strings;
calculate a weightage of the n-grams for the pre-processed text strings, wherein the weightage is a frequency scaled considering size of the corresponding pre-processed text strings;
determine a ratio of sum of the calculated weightage of each n-gram across the pre-processed text strings to a maxima weightage of the n-gram;
calculate an n-gram confidence value using a box-cox transformation over the determined ratio to obtain a normal distribution of the n-gram confidence values;
identify one or more nodes of significance from the obtained normal distribution based on higher values than a predefined dynamic threshold value of n-grams, wherein the predefined dynamic threshold depends on the obtained normal distribution;
map the identified one or more nodes of significance using a predefined domain lexicon to identify one or more domains against each of the one or more nodes of significance;
converge the one or more domains to a plurality of subject areas and simultaneously computing a score by adding the corresponding confidence, as associated with the significant node, for that subject; and
identify at least one subject based on the computed score to each of the one or more subjects.