Search Results for author: Rafid Mahmood

Found 17 papers, 5 papers with code

Pricing and Competition for Generative AI

no code implementations4 Nov 2024 Rafid Mahmood

We first develop a comparison of two different models for a specific task with respect to user cost-effectiveness.

Uncertainty Estimation for 3D Object Detection via Evidential Learning

no code implementations31 Oct 2024 Nikita Durasov, Rafid Mahmood, Jiwoong Choi, Marc T. Law, James Lucas, Pascal Fua, Jose M. Alvarez

We introduce a framework for quantifying uncertainty in 3D object detection by leveraging an evidential learning loss on Bird's Eye View representations in the 3D detector.

3D Object Detection Autonomous Vehicles +2

Reasoning Paths with Reference Objects Elicit Quantitative Spatial Reasoning in Large Vision-Language Models

no code implementations15 Sep 2024 Yuan-Hong Liao, Rafid Mahmood, Sanja Fidler, David Acuna

Inspired by this observation, we develop a zero-shot prompting technique, SpatialPrompt, that encourages VLMs to answer quantitative spatial questions using reference objects as visual cues.

Spatial Reasoning

No Need to Sacrifice Data Quality for Quantity: Crowd-Informed Machine Annotation for Cost-Effective Understanding of Visual Data

no code implementations19 Aug 2024 Christopher Klugmann, Rafid Mahmood, Guruprasad Hegde, Amit Kale, Daniel Kondermann

In this paper, we present a framework that enables quality checking of visual data at large scales without sacrificing the reliability of the results.

Autonomous Driving

AutoScale: Automatic Prediction of Compute-optimal Data Composition for Training LLMs

1 code implementation29 Jul 2024 Feiyang Kang, Yifan Sun, Bingbing Wen, Si Chen, Dawn Song, Rafid Mahmood, Ruoxi Jia

Domain reweighting is an emerging research area aimed at adjusting the relative weights of different data sources to improve the effectiveness and efficiency of language model pre-training.

Bilevel Optimization Language Modelling +1

Can Feedback Enhance Semantic Grounding in Large Vision-Language Models?

no code implementations9 Apr 2024 Yuan-Hong Liao, Rafid Mahmood, Sanja Fidler, David Acuna

We find that if prompted appropriately, VLMs can utilize feedback both in a single step and iteratively, showcasing the potential of feedback as an alternative technique to improve grounding in internet-scale VLMs.

Bridging the Sim2Real gap with CARE: Supervised Detection Adaptation with Conditional Alignment and Reweighting

no code implementations9 Feb 2023 Viraj Prabhu, David Acuna, Andrew Liao, Rafid Mahmood, Marc T. Law, Judy Hoffman, Sanja Fidler, James Lucas

Sim2Real domain adaptation (DA) research focuses on the constrained setting of adapting from a labeled synthetic source domain to an unlabeled or sparsely labeled real target domain.

Autonomous Driving Domain Adaptation +3

Optimizing Data Collection for Machine Learning

no code implementations3 Oct 2022 Rafid Mahmood, James Lucas, Jose M. Alvarez, Sanja Fidler, Marc T. Law

Modern deep learning systems require huge data sets to achieve impressive performance, but there is little guidance on how much or what kind of data to collect.

Low-Budget Active Learning via Wasserstein Distance: An Integer Programming Approach

no code implementations ICLR 2022 Rafid Mahmood, Sanja Fidler, Marc T Law

Active learning is the process of training a model with limited labeled data by selecting a core subset of an unlabeled data pool to label.

Active Learning

Low Budget Active Learning via Wasserstein Distance: An Integer Programming Approach

no code implementations5 Jun 2021 Rafid Mahmood, Sanja Fidler, Marc T. Law

Active learning is the process of training a model with limited labeled data by selecting a core subset of an unlabeled data pool to label.

Active Learning

OpenKBP: The open-access knowledge-based planning grand challenge

1 code implementation28 Nov 2020 Aaron Babier, Binghao Zhang, Rafid Mahmood, Kevin L. Moore, Thomas G. Purdie, Andrea L. McNiven, Timothy C. Y. Chan

The purpose of this work is to advance fair and consistent comparisons of dose prediction methods for knowledge-based planning (KBP) in radiation therapy research.

The importance of evaluating the complete automated knowledge-based planning pipeline

no code implementations31 Oct 2019 Aaron Babier, Rafid Mahmood, Andrea L. McNiven, Adam Diamant, Timothy C. Y. Chan

We determine how prediction methods combine with optimization methods in two-stage knowledge-based planning (KBP) pipelines to produce radiation therapy treatment plans.

Generative Adversarial Network

Knowledge-based automated planning with three-dimensional generative adversarial networks

1 code implementation21 Dec 2018 Aaron Babier, Rafid Mahmood, Andrea L. McNiven, Adam Diamant, Timothy C. Y. Chan

Our pipeline consisted of a generative adversarial network (GAN) to predict dose from a CT image followed by two optimization models to learn objective function weights and generate fluence-based plans, respectively.

Medical Physics

Automated Treatment Planning in Radiation Therapy using Generative Adversarial Networks

1 code implementation17 Jul 2018 Rafid Mahmood, Aaron Babier, Andrea McNiven, Adam Diamant, Timothy C. Y. Chan

Knowledge-based planning (KBP) is an automated approach to radiation therapy treatment planning that involves predicting desirable treatment plans before they are then corrected to deliverable ones.

Feature Engineering Generative Adversarial Network

Learning to Optimize Contextually Constrained Problems for Real-Time Decision-Generation

no code implementations23 May 2018 Aaron Babier, Timothy C. Y. Chan, Adam Diamant, Rafid Mahmood

The topic of learning to solve optimization problems has received interest from both the operations research and machine learning communities.

Active Learning Portfolio Optimization +1

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