Tata Consultancy Services Limited

Amit Sangroya

Gautam Shroff

Chandrasekhar Anantaram

Mrinal Rawat

Lovekesh Vig

Rekha Singhal

Pratik Saini

For various applications (for example, a Virtual Assistant), mechanisms that are capable of collecting user queries and generating responses are being used. While such systems handle structured queries well, they struggle to or fail to interpret an unstructured Natural Language (NL) query. The disclosure herein generally relates to data processing, and, more particularly, to a method and a system for generating responses to unstructured Natural Language (NL) queries. The system collects at least one NL query as input at a time, and generates a sketch, where the sketch is a structured representation of the unstructured NL query. Further by processing the sketch, the system generates one or more database queries. The one or more database queries are then used to search in one or more associated databases and to retrieve matching results, which are then used to generate response to the at least one NL query.

Method and system for generating a response to an unstructured natural language (NL) query

This disclosure relates generally to methods and systems for generating a textual summary from a tabular data. During the textual summary generation using conventional end-to-end neural network-based techniques, a numeric data present in the tables is encoded via textual embeddings. However, the textual embeddings cannot reliably encode information about numeric concepts and relationships. The methods and systems generate the textual summary from the tabular data, by incorporating rank information for different records present in the tabular data. Then, a two-stage encoder-decoder network is used to learn correlations between the rank information and the probability of including the records based on the rank information, to obtain the textual summary generation model. The textual summary generation model identifies the content selection having the records present in the tables to be included in the textual summary and generates the textual summary from the identified content selection.

Methods and systems for generating textual summary from tabular data

A chat bot is a system designed to engage in a conversation with users on various tasks, like resolving a complaint, especially over internet. The present disclosure computes a set of hidden intent of a user from by using a set of words and a domain ontology associated with the set of words. Initially, the input sentence is analyzed to identify a category associated with it. Further, the set of words are extracted from the categorized input sentence using sentence parsers. Further, the set of hidden intent of the user is utilized for computing a set of epistemic rules. Further, the set of epistemic rules are utilized to compute a set of hop states and a next sentence is generated based on the set of hop states.

System and method for belief based human-bot conversation

Systems and methods for generating performance prediction model and estimating execution time for applications is provided. The system executes synthetic benchmarks for a first dataset on a first cluster. Each synthetic benchmark includes a MapReduce (MR) job. The system further extracts sensitive parameters for each sub-phase of the MR job, generates a linear regression prediction model for each sub-phase to obtain one or more linear regression prediction models, based on which the system further generates a performance prediction model to be utilized for predicting, using the sensitive parameters, a Hive query execution time of a Directed Acyclic Graph (DAG) of one or more MR jobs executed on a second dataset on a second cluster, wherein the first cluster that includes the first dataset is smaller compared to the second cluster that includes the second dataset.

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Gurgaon, India

Amit Sangroya