Search Results for author: Abram L. Friesen

Found 11 papers, 1 papers with code

Knowledge Transfer from Teachers to Learners in Growing-Batch Reinforcement Learning

no code implementations5 May 2023 Patrick Emedom-Nnamdi, Abram L. Friesen, Bobak Shahriari, Nando de Freitas, Matt W. Hoffman

However, due to safety, ethical, and practicality constraints, this type of trial-and-error experimentation is often infeasible in many real-world domains such as healthcare and robotics.

Decision Making reinforcement-learning +1

Multi-step Planning for Automated Hyperparameter Optimization with OptFormer

no code implementations10 Oct 2022 Lucio M. Dery, Abram L. Friesen, Nando de Freitas, Marc'Aurelio Ranzato, Yutian Chen

As machine learning permeates more industries and models become more expensive and time consuming to train, the need for efficient automated hyperparameter optimization (HPO) has never been more pressing.

Hyperparameter Optimization

Modular Meta-Learning with Shrinkage

no code implementations NeurIPS 2020 Yutian Chen, Abram L. Friesen, Feryal Behbahani, Arnaud Doucet, David Budden, Matthew W. Hoffman, Nando de Freitas

Many real-world problems, including multi-speaker text-to-speech synthesis, can greatly benefit from the ability to meta-learn large models with only a few task-specific components.

Image Classification Meta-Learning +2

Submodular Field Grammars: Representation, Inference, and Application to Image Parsing

no code implementations NeurIPS 2018 Abram L. Friesen, Pedro M. Domingos

Natural scenes contain many layers of part-subpart structure, and distributions over them are thus naturally represented by stochastic image grammars, with one production per decomposition of a part.

Scene Understanding

Deep Learning as a Mixed Convex-Combinatorial Optimization Problem

1 code implementation ICLR 2018 Abram L. Friesen, Pedro Domingos

Based on this, we develop a recursive mini-batch algorithm for learning deep hard-threshold networks that includes the popular but poorly justified straight-through estimator as a special case.

Combinatorial Optimization Quantization

The Sum-Product Theorem: A Foundation for Learning Tractable Models

no code implementations11 Nov 2016 Abram L. Friesen, Pedro Domingos

We illustrate the power and generality of this approach by applying it to a new type of structured prediction problem: learning a nonconvex function that can be globally optimized in polynomial time.

Structured Prediction

Recursive Decomposition for Nonconvex Optimization

no code implementations8 Nov 2016 Abram L. Friesen, Pedro Domingos

Similarly to DPLL-style SAT solvers and recursive conditioning in probabilistic inference, our algorithm, RDIS, recursively sets variables so as to simplify and decompose the objective function into approximately independent sub-functions, until the remaining functions are simple enough to be optimized by standard techniques like gradient descent.

Combinatorial Optimization graph partitioning +2

An ideal observer model for identifying the reference frame of objects

no code implementations NeurIPS 2011 Joseph L. Austerweil, Abram L. Friesen, Thomas L. Griffiths

The object people perceive in an image can depend on its orientation relative to the scene it is in (its reference frame).

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