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Akash Kumar Mohankumar

2 accepted papers

2024

Improving Retrieval in Sponsored Search by Leveraging Query Context Signals

EMNLP 2024industry

Accurately retrieving relevant bid keywords for user queries is critical in Sponsored Search but remains challenging, particularly for short, ambiguous queries. Existing dense and generative retrieval models often fail to capture the nuanced user intent in these cases. To address this, we propose an…

Cited by 1SourcePDFScholar
2022

Active Evaluation: Efficient NLG Evaluation with Few Pairwise Comparisons

ACL 2022long

Recent studies have shown the advantages of evaluating NLG systems using pairwise comparisons as opposed to direct assessment. Given k systems, a naive approach for identifying the top-ranked system would be to uniformly obtain pairwise comparisons from all k \choose 2 pairs of systems. However, thi…