Customer-obsessed science
Research areas
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August 21, 20269 min readExtendable framework enables testing agents on the full set of capabilities required to successfully complete a procedure, not isolated proxy tasks.
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July 30, 20268 min read
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July 9, 202610 min read
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Featured news
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ACM L@S 20202020Open navigation online learning systems allow learners to choose the next learning activity. These systems can be instrumented to provide learners with feedback to help them choose the next learning activity. One type of feedback is providing an estimate of the learner’s current skill proficiency. A learner can then choose to skip the remaining learning activities for that skill after achieving proficiency
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ECML-PKDD 20202020Machine learning classifiers often require regular tracking of performance measures such as precision, recall, F1-score, etc., for model improvement and diagnostics. The population over which accuracy metrics are evaluated can be too large for a full ground-truth assessment and so only small random samples are chosen for estimation. Ground-truthing often requires human review, which is expensive. Moreover
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KDD 20202020We consider the extreme multi-label text classification (XMC) problem: given an input text, return the most relevant labels from a large label collection. For example, the input text could be a product description on Amazon.com and the labels could be product categories. XMC is an important yet challenging problem in the NLP community. Recently, deep pretrained transformer models have achieved state-of-the-art
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SIGIR 20202020IR-based Question Answering (QA) systems typically use a sentence selector to extract the answer from retrieved documents. Recent studies have shown that powerful neural models based on the Transformer can provide an accurate solution to Answer Sentence Selection (AS2). Unfortunately, their computation cost prevents their use in real-world applications. In this paper, we show that standard and efficient
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ECIR 20202020While billions of non-English speaking users rely on search engines every day, the problem of ad-hoc information retrieval is rarely studied for non-English languages. This is primarily due to a lack of data set that are suitable to train ranking algorithms. In this paper, we tackle the lack of data by leveraging pre-trained multilingual language models to transfer a retrieval system trained on English
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