Search Results for author: Daniel Cohen

Found 15 papers, 9 papers with code

Explain then Rank: Scale Calibration of Neural Rankers Using Natural Language Explanations from Large Language Models

1 code implementation19 Feb 2024 Puxuan Yu, Daniel Cohen, Hemank Lamba, Joel Tetreault, Alex Jaimes

The process of scale calibration in ranking systems involves adjusting the outputs of rankers to correspond with significant qualities like click-through rates or relevance, crucial for mirroring real-world value and thereby boosting the system's effectiveness and reliability.

Document Ranking Learning-To-Rank

In-Context Example Ordering Guided by Label Distributions

no code implementations18 Feb 2024 Zhichao Xu, Daniel Cohen, Bei Wang, Vivek Srikumar

Inspired by the idea of learning from label proportions, we propose two principles for in-context example ordering guided by model's probability predictions.

In-Context Learning text-classification +1

Predictive Uncertainty-based Bias Mitigation in Ranking

1 code implementation18 Sep 2023 Maria Heuss, Daniel Cohen, Masoud Mansoury, Maarten de Rijke, Carsten Eickhoff

Prior work on bias mitigation often assumes that ranking scores, which correspond to the utility that a document holds for a user, can be accurately determined.

Fairness

A Lightweight Constrained Generation Alternative for Query-focused Summarization

1 code implementation23 Apr 2023 Zhichao Xu, Daniel Cohen

Query-focused summarization (QFS) aims to provide a summary of a document that satisfies information need of a given query and is useful in various IR applications, such as abstractive snippet generation.

Language Modelling Large Language Model +2

A Modern Perspective on Query Likelihood with Deep Generative Retrieval Models

1 code implementation25 Jun 2021 Oleg Lesota, Navid Rekabsaz, Daniel Cohen, Klaus Antonius Grasserbauer, Carsten Eickhoff, Markus Schedl

In contrast to the matching paradigm, the probabilistic nature of generative rankers readily offers a fine-grained measure of uncertainty.

Passage Re-Ranking Passage Retrieval +3

Not All Relevance Scores are Equal: Efficient Uncertainty and Calibration Modeling for Deep Retrieval Models

1 code implementation10 May 2021 Daniel Cohen, Bhaskar Mitra, Oleg Lesota, Navid Rekabsaz, Carsten Eickhoff

In any ranking system, the retrieval model outputs a single score for a document based on its belief on how relevant it is to a given search query.

Retrieval

Machine Learning for Mechanical Ventilation Control

2 code implementations12 Feb 2021 Daniel Suo, Naman Agarwal, Wenhan Xia, Xinyi Chen, Udaya Ghai, Alexander Yu, Paula Gradu, Karan Singh, Cyril Zhang, Edgar Minasyan, Julienne LaChance, Tom Zajdel, Manuel Schottdorf, Daniel Cohen, Elad Hazan

We consider the problem of controlling an invasive mechanical ventilator for pressure-controlled ventilation: a controller must let air in and out of a sedated patient's lungs according to a trajectory of airway pressures specified by a clinician.

BIG-bench Machine Learning

MODELLING BIOLOGICAL ASSAYS WITH ADAPTIVE DEEP KERNEL LEARNING

no code implementations25 Sep 2019 Prudencio Tossou, Basile Dura, Daniel Cohen, Mario Marchand, François Laviolette, Alexandre Lacoste

Due to the significant costs of data generation, many prediction tasks within drug discovery are by nature few-shot regression (FSR) problems, including accurate modelling of biological assays.

Drug Discovery

Cross Domain Regularization for Neural Ranking Models Using Adversarial Learning

no code implementations9 May 2018 Daniel Cohen, Bhaskar Mitra, Katja Hofmann, W. Bruce Croft

We use an adversarial discriminator and train our neural ranking model on a small set of domains.

Information Retrieval

Adaptability of Neural Networks on Varying Granularity IR Tasks

no code implementations24 Jun 2016 Daniel Cohen, Qingyao Ai, W. Bruce Croft

Recent work in Information Retrieval (IR) using Deep Learning models has yielded state of the art results on a variety of IR tasks.

Information Retrieval Retrieval

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