Search Results for author: Negar Rostamzadeh

Found 32 papers, 11 papers with code

The Case for Globalizing Fairness: A Mixed Methods Study on Colonialism, AI, and Health in Africa

no code implementations5 Mar 2024 Mercy Asiedu, Awa Dieng, Iskandar Haykel, Negar Rostamzadeh, Stephen Pfohl, Chirag Nagpal, Maria Nagawa, Abigail Oppong, Sanmi Koyejo, Katherine Heller

Whereas experts generally expressed a shared view about the relevance of colonial history for the development and implementation of AI technologies in Africa, the majority of the general population participants surveyed did not think there was a direct link between AI and colonialism.

Attribute Fairness

From plane crashes to algorithmic harm: applicability of safety engineering frameworks for responsible ML

no code implementations6 Oct 2022 Shalaleh Rismani, Renee Shelby, Andrew Smart, Edgar Jatho, Joshua Kroll, AJung Moon, Negar Rostamzadeh

Inappropriate design and deployment of machine learning (ML) systems leads to negative downstream social and ethical impact -- described here as social and ethical risks -- for users, society and the environment.

Cultural Vocal Bursts Intensity Prediction Management

Bias-inducing geometries: an exactly solvable data model with fairness implications

no code implementations31 May 2022 Stefano Sarao Mannelli, Federica Gerace, Negar Rostamzadeh, Luca Saglietti

Then, we consider a novel mitigation strategy based on a matched inference approach, consisting in the introduction of coupled learning models.

Fairness

Evaluation Gaps in Machine Learning Practice

no code implementations11 May 2022 Ben Hutchinson, Negar Rostamzadeh, Christina Greer, Katherine Heller, Vinodkumar Prabhakaran

Forming a reliable judgement of a machine learning (ML) model's appropriateness for an application ecosystem is critical for its responsible use, and requires considering a broad range of factors including harms, benefits, and responsibilities.

BIG-bench Machine Learning

Disability prediction in multiple sclerosis using performance outcome measures and demographic data

no code implementations8 Apr 2022 Subhrajit Roy, Diana Mincu, Lev Proleev, Negar Rostamzadeh, Chintan Ghate, Natalie Harris, Christina Chen, Jessica Schrouff, Nenad Tomasev, Fletcher Lee Hartsell, Katherine Heller

To the best of our knowledge, our results are the first to show that it is possible to predict disease progression using POMs and demographic data in the context of both clinical trials and smartphone-base studies by using two datasets.

Benchmarking BIG-bench Machine Learning

Healthsheet: Development of a Transparency Artifact for Health Datasets

1 code implementation26 Feb 2022 Negar Rostamzadeh, Diana Mincu, Subhrajit Roy, Andrew Smart, Lauren Wilcox, Mahima Pushkarna, Jessica Schrouff, Razvan Amironesei, Nyalleng Moorosi, Katherine Heller

Our findings from the interviewee study and case studies show 1) that datasheets should be contextualized for healthcare, 2) that despite incentives to adopt accountability practices such as datasheets, there is a lack of consistency in the broader use of these practices 3) how the ML for health community views datasheets and particularly \textit{Healthsheets} as diagnostic tool to surface the limitations and strength of datasets and 4) the relative importance of different fields in the datasheet to healthcare concerns.

Ethics and Creativity in Computer Vision

no code implementations6 Dec 2021 Negar Rostamzadeh, Emily Denton, Linda Petrini

This paper offers a retrospective of what we learnt from organizing the workshop *Ethical Considerations in Creative applications of Computer Vision* at CVPR 2021 conference and, prior to that, a series of workshops on *Computer Vision for Fashion, Art and Design* at ECCV 2018, ICCV 2019, and CVPR 2020.

Ethics

Thinking Beyond Distributions in Testing Machine Learned Models

no code implementations6 Dec 2021 Negar Rostamzadeh, Ben Hutchinson, Christina Greer, Vinodkumar Prabhakaran

Testing practices within the machine learning (ML) community have centered around assessing a learned model's predictive performance measured against a test dataset, often drawn from the same distribution as the training dataset.

BIG-bench Machine Learning Fairness

Deep Cox Mixtures for Survival Regression

4 code implementations16 Jan 2021 Chirag Nagpal, Steve Yadlowsky, Negar Rostamzadeh, Katherine Heller

Survival analysis is a challenging variation of regression modeling because of the presence of censoring, where the outcome measurement is only partially known, due to, for example, loss to follow up.

regression Survival Analysis

A Few-Shot Sequential Approach for Object Counting

no code implementations3 Jul 2020 Negin Sokhandan, Pegah Kamousi, Alejandro Posada, Eniola Alese, Negar Rostamzadeh

In this work, we address the problem of few-shot multi-class object counting with point-level annotations.

Object Object Counting

Post-Workshop Report on Science meets Engineering in Deep Learning, NeurIPS 2019, Vancouver

no code implementations25 Jun 2020 Levent Sagun, Caglar Gulcehre, Adriana Romero, Negar Rostamzadeh, Stefano Sarao Mannelli

Science meets Engineering in Deep Learning took place in Vancouver as part of the Workshop section of NeurIPS 2019.

Reinforced active learning for image segmentation

1 code implementation ICLR 2020 Arantxa Casanova, Pedro O. Pinheiro, Negar Rostamzadeh, Christopher J. Pal

Our method proposes a new modification of the deep Q-network (DQN) formulation for active learning, adapting it to the large-scale nature of semantic segmentation problems.

Active Learning Image Segmentation +3

Neural Multisensory Scene Inference

2 code implementations NeurIPS 2019 Jae Hyun Lim, Pedro O. Pinheiro, Negar Rostamzadeh, Christopher Pal, Sungjin Ahn

For embodied agents to infer representations of the underlying 3D physical world they inhabit, they should efficiently combine multisensory cues from numerous trials, e. g., by looking at and touching objects.

Computational Efficiency Representation Learning

Retrieving Signals in the Frequency Domain with Deep Complex Extractors

1 code implementation25 Sep 2019 Chiheb Trabelsi, Olexa Bilaniuk, Ousmane Dia, Ying Zhang, Mirco Ravanelli, Jonathan Binas, Negar Rostamzadeh, Christopher J Pal

Using the Wall Street Journal Dataset, we compare our phase-aware loss to several others that operate both in the time and frequency domains and demonstrate the effectiveness of our proposed signal extraction method and proposed loss.

Audio Source Separation

Reinforced Imitation Learning from Observations

no code implementations ICLR 2019 Konrad Zolna, Negar Rostamzadeh, Yoshua Bengio, Sungjin Ahn, Pedro O. Pinheiro

Imitation learning is an effective alternative approach to learn a policy when the reward function is sparse.

Imitation Learning

Towards Standardization of Data Licenses: The Montreal Data License

no code implementations21 Mar 2019 Misha Benjamin, Paul Gagnon, Negar Rostamzadeh, Chris Pal, Yoshua Bengio, Alex Shee

This paper provides a taxonomy for the licensing of data in the fields of artificial intelligence and machine learning.

Adaptive Cross-Modal Few-Shot Learning

1 code implementation NeurIPS 2019 Chen Xing, Negar Rostamzadeh, Boris N. Oreshkin, Pedro O. Pinheiro

Through a series of experiments, we show that by this adaptive combination of the two modalities, our model outperforms current uni-modality few-shot learning methods and modality-alignment methods by a large margin on all benchmarks and few-shot scenarios tested.

Few-Shot Image Classification Few-Shot Learning +1

Where are the Blobs: Counting by Localization with Point Supervision

3 code implementations ECCV 2018 Issam H. Laradji, Negar Rostamzadeh, Pedro O. Pinheiro, David Vazquez, Mark Schmidt

However, we propose a detection-based method that does not need to estimate the size and shape of the objects and that outperforms regression-based methods.

Object Object Counting +1

Fashion-Gen: The Generative Fashion Dataset and Challenge

3 code implementations21 Jun 2018 Negar Rostamzadeh, Seyedarian Hosseini, Thomas Boquet, Wojciech Stokowiec, Ying Zhang, Christian Jauvin, Chris Pal

We introduce a new dataset of 293, 008 high definition (1360 x 1360 pixels) fashion images paired with item descriptions provided by professional stylists.

Image Generation

Hierarchical Adversarially Learned Inference

no code implementations ICLR 2018 Mohamed Ishmael Belghazi, Sai Rajeswar, Olivier Mastropietro, Negar Rostamzadeh, Jovana Mitrovic, Aaron Courville

We propose a novel hierarchical generative model with a simple Markovian structure and a corresponding inference model.

Attribute

Deep Prior

no code implementations13 Dec 2017 Alexandre Lacoste, Thomas Boquet, Negar Rostamzadeh, Boris Oreshkin, Wonchang Chung, David Krueger

The recent literature on deep learning offers new tools to learn a rich probability distribution over high dimensional data such as images or sounds.

Deep Complex Networks

9 code implementations ICLR 2018 Chiheb Trabelsi, Olexa Bilaniuk, Ying Zhang, Dmitriy Serdyuk, Sandeep Subramanian, João Felipe Santos, Soroush Mehri, Negar Rostamzadeh, Yoshua Bengio, Christopher J. Pal

Despite their attractive properties and potential for opening up entirely new neural architectures, complex-valued deep neural networks have been marginalized due to the absence of the building blocks required to design such models.

Image Classification Music Transcription +1

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