Wipro Limited

Accenture Global Solutions Limited

Surajit Sen

Chetan Narasimha Yadati

Gopali Raval Contractor

Bhushan Gurmukhdas Jagyasi

Aditi Debsharma

Rosalin Parida

A method and system for emotion recognition and forecasting are disclosed. The method may include obtaining an audio data of a conversation involving a plurality of speakers and identifying a plurality of turns of the conversation from the plurality of utterances. The method may further include extracting audio embedding features from the plurality of turns, obtaining a plurality of text segments associated with the audio data, extracting text embedding features from the plurality of text segments, obtaining and concatenating speaker embedding features associated with the audio data, obtaining and concatenating a plurality of emotion features corresponding to the plurality of turns. The method further comprises executing a tree-based prediction model to predict emotion features of the plurality of speakers for a subsequent turn of the ongoing conversation based on the audio embedding features, text embedding features, the concatenated speaker embedding features, and the concatenated emotion features.

Machine learning based emotion prediction and forecasting in conversation

System and method for data cleansing are disclosed. The method comprises receiving one or more data records pre-categorized into one or more categories. Identifying at least one concept associated with one or more data records, and grouping, the at least one concept associated with the one or more data records into a plurality of category lists based on the predefined category associated with each of the one or more data records. Determining, one or more intersection sets based on a comparison between each pair of the plurality of category lists, wherein each intersection set comprises a set of one or more common concepts associated with a pair of category lists. The method comprises replacing each of at least one common concept of the set of one or more common concepts associated with each intersection set by a category name based on an occurrence rate of the common concepts.

System and method for data cleansing

In one embodiment, a method for transforming training data to improve data classification is disclosed. The method comprises extracting concepts from a training data set. The method comprises computing frequency of occurrence of each concept in each category and removing concepts from the data records when the frequency of occurrence of a concept in a category is less than a threshold frequency value. Further, the method comprises computing a percentage contribution of each concept of remaining concepts in each category upon removing the concepts and eliminating concepts, from the remaining concepts, contributing equally to each category based on the percentage contribution of each concept to provide a reformed training data set. Further, the method comprises appending a category name to a corresponding data record in the reformed training data set based on a normalized frequency of occurrence of the concept in a category to improve data classification.

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Bengaluru, India

Surajit Sen