Customer-obsessed science
Amazon's unique approach to research is characterized by its customer-obsessed science philosophy, which drives innovation in artificial intelligence, machine learning, and other cutting-edge technologies.
Research areas
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January 26, 20262 min readLeveraging existing environment simulators and reward functions based on verifiable ground truth boosts task success rate, even with small models and small training datasets.
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September 23, 20256 min readMachine learning
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Featured news
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SIGIR-AP 20232023Counterfactual evaluation plays a crucial role in learning-to-rank problems, as it addresses the discrepancy between the data logging policy and the policy being evaluated, due to the presence of presentation bias. Existing counterfactual methods, which are based on the empirical risk minimization framework, aim to evaluate the ability of a ranking policy to produce optimal results for a single query using
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IJCNLP-AACL 20232023Prior work in the field of text summarization mostly focuses on generating summaries that are a sentence or two long. In this work, we introduce the task of abstractive short-phrase summarization (PhraseSumm), which aims at capturing the central theme of a document through a generated short phrase. We explore BART & T5-based neural summarization models, and measure their effectiveness for the task using
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ICDM 20232023There are several algorithms for measuring fairness of ML models. A fundamental assumption in these approaches is that the ground truth is fair or unbiased. In real-world datasets, however, the ground truth often contains data that is a result of historical and societal biases and discrimination. Models trained on these datasets will inherit and propagate the biases to the model outputs. We propose FAIRLABEL
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ASRU 20232023Second pass rescoring is a critical component of competitive automatic speech recognition (ASR) systems. Large language models have demonstrated their ability in using pre-trained information for better rescoring of ASR hypothesis. Discriminative training, directly optimizing the minimum word-errorrate (MWER) criterion typically improves rescoring. In this study, we propose and explore several discriminative
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NeurIPS 20232023This work proposes POMP, a prompt pre-training method for vision-language models. Being memory and computation efficient, POMP enables the learned prompt to condense semantic information for a rich set of visual concepts with over twenty-thousand classes. Once pre-trained, the prompt with a strong transferable ability can be directly plugged into a variety of visual recognition tasks including image classification
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