Music Representation Learning

  • Acoustic representation using Contrastive learning
  • Evaluation method for Indian Music
  • Cross Model Retrieval for Indian Music
  • Part of song Tagging for Intelligent Segment Sampling

Feature Interaction based point-wise re-ranking for Mixes on Wynk

  • Already high CTR
  • Multiple fallback systems
  • Online
  • Custom Loss function handling (intend based)[] sample weights

Content Recommender system for Movies

  • low data availability setup
  • Multiple fallback systems
  • Online
  • popularity metric
  • Co-occurence based model
  • Collaborative Filtering initial version

Realtime Speech Recognition for JioMeet

  • Wav2vec2
  • Streaming inference using gRPC bi-directional Streaming
  • medical domain fine-tuned LM for CTC decoder

Telecom Coverage Optimization using Quadratic Programming

  • Formulated telecom coverage as a quadratic optimization problem parametrize by the fraction of grids demand served by any cell.
  • Solved the program using CVXOPT
  • Developed an objective function incorporating the interference/coverge/quality of the demand served
  • Trained another model to predict the tilt angle on the cell to serve a given distribution of the demand.

Distributed Anomaly Detection

  • In-house servers firewall logs were monitored to detect strange connections
  • Distributed pipeline on Apache Spark
  • Detection was based on KDEs, where appropriate kernels, time-spans, entity levels can be choosen based on the data distribution

Mobility Tracing during Covid Migration Patterns using Telecom data

  • Covid19 migration patterns between states/cities/GeoHashes
  • Distributed pipeline on Apache Spark on Telecom logs

Look Alike Modelling in retails

  • Modelled User based on a number of attributes captured by the business to find High propensity to buy customers.
  • Using Mahlanobis distance

Sales prediction using DeepAR model

  • Trained DeepAR model on Sales Time series