Ashutosh Joshi


Augmenting Training Data for Massive Semantic Matching Models in Low-Traffic E-commerce Stores
Ashutosh Joshi | Shankar Vishwanath | Choon Teo | Vaclav Petricek | Vishy Vishwanathan | Rahul Bhagat | Jonathan May
Proceedings of the 2022 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies: Industry Track

Extreme multi-label classification (XMC) systems have been successfully applied in e-commerce (Shen et al., 2020; Dahiya et al., 2021) for retrieving products based on customer behavior. Such systems require large amounts of customer behavior data (e.g. queries, clicks, purchases) for training. However, behavioral data is limited in low-traffic e-commerce stores, impacting performance of these systems. In this paper, we present a technique that augments behavioral training data via query reformulation. We use the Aggregated Label eXtreme Multi-label Classification (AL-XMC) system (Shen et al., 2020) as an example semantic matching model and show via crowd-sourced human judgments that, when the training data is augmented through query reformulations, the quality of AL-XMC improves over a baseline that does not use query reformulation. We also show in online A/B tests that our method significantly improves business metrics for the AL-XMC model.


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Question Answering via Bayesian Inference on Lexical Relations
Ganesh Ramakrishnan | Apurva Jadhav | Ashutosh Joshi | Soumen Chakrabarti | Pushpak Bhattacharyya
Proceedings of the ACL 2003 Workshop on Multilingual Summarization and Question Answering