Search Results for author: Theodore L. Willke

Found 18 papers, 3 papers with code

Leveraging Reinforcement Learning and Large Language Models for Code Optimization

no code implementations9 Dec 2023 Shukai Duan, Nikos Kanakaris, Xiongye Xiao, Heng Ping, Chenyu Zhou, Nesreen K. Ahmed, Guixiang Ma, Mihai Capota, Theodore L. Willke, Shahin Nazarian, Paul Bogdan

We compare our framework with existing state-of-the-art models and show that it is more efficient with respect to speed and computational usage, as a result of the decrement in training steps and its applicability to models with fewer parameters.

Language Modelling reinforcement-learning +1

Neural Algorithms for Graph Navigation

no code implementations NeurIPS Workshop LMCA 2020 Aaron Zweig, Nesreen Ahmed, Theodore L. Willke, Guixiang Ma

The application of deep reinforcement learning (RL) to graph learning and meta-learning admits challenges from both topics.

Graph Learning Meta-Learning +2

A Vertex Cut based Framework for Load Balancing and Parallelism Optimization in Multi-core Systems

no code implementations9 Oct 2020 Guixiang Ma, Yao Xiao, Theodore L. Willke, Nesreen K. Ahmed, Shahin Nazarian, Paul Bogdan

High-level applications, such as machine learning, are evolving from simple models based on multilayer perceptrons for simple image recognition to much deeper and more complex neural networks for self-driving vehicle control systems. The rapid increase in the consumption of memory and computational resources by these models demands the use of multi-core parallel systems to scale the execution of the complex emerging applications that depend on them.

Deep Graph Similarity Learning: A Survey

no code implementations25 Dec 2019 Guixiang Ma, Nesreen K. Ahmed, Theodore L. Willke, Philip S. Yu

In many domains where data are represented as graphs, learning a similarity metric among graphs is considered a key problem, which can further facilitate various learning tasks, such as classification, clustering, and similarity search.

Clustering Graph Similarity

Clinically Deployed Distributed Magnetic Resonance Imaging Reconstruction: Application to Pediatric Knee Imaging

no code implementations11 Sep 2018 Michael J. Anderson, Jonathan I. Tamir, Javier S. Turek, Marcus T. Alley, Theodore L. Willke, Shreyas S. Vasanawala, Michael Lustig

Our improvements to the pipeline on a single machine provide a 3x overall reconstruction speedup, which allowed us to add algorithmic changes improving image quality.

Segmenting Brain Tumors with Symmetry

no code implementations17 Nov 2017 Hejia Zhang, Xia Zhu, Theodore L. Willke

We explore encoding brain symmetry into a neural network for a brain tumor segmentation task.

Brain Tumor Segmentation Segmentation +1

Inductive Representation Learning in Large Attributed Graphs

no code implementations25 Oct 2017 Nesreen K. Ahmed, Ryan A. Rossi, Rong Zhou, John Boaz Lee, Xiangnan Kong, Theodore L. Willke, Hoda Eldardiry

To make these methods more generally applicable, we propose a framework for inductive network representation learning based on the notion of attributed random walk that is not tied to node identity and is instead based on learning a function $\Phi : \mathrm{\rm \bf x} \rightarrow w$ that maps a node attribute vector $\mathrm{\rm \bf x}$ to a type $w$.

Anomaly Detection Attribute +2

Revisiting Role Discovery in Networks: From Node to Edge Roles

no code implementations4 Oct 2016 Nesreen K. Ahmed, Ryan A. Rossi, Theodore L. Willke, Rong Zhou

The experimental results demonstrate the utility of edge roles for network analysis tasks on a variety of graphs from various problem domains.

A Searchlight Factor Model Approach for Locating Shared Information in Multi-Subject fMRI Analysis

no code implementations29 Sep 2016 Hejia Zhang, Po-Hsuan Chen, Janice Chen, Xia Zhu, Javier S. Turek, Theodore L. Willke, Uri Hasson, Peter J. Ramadge

In this work, we examine a searchlight based shared response model to identify shared information in small contiguous regions (searchlights) across the whole brain.

General Classification

A Convolutional Autoencoder for Multi-Subject fMRI Data Aggregation

no code implementations17 Aug 2016 Po-Hsuan Chen, Xia Zhu, Hejia Zhang, Javier S. Turek, Janice Chen, Theodore L. Willke, Uri Hasson, Peter J. Ramadge

We examine two ways to combine the ideas of a factor model and a searchlight based analysis to aggregate multi-subject fMRI data while preserving spatial locality.

Anatomy

Enabling Factor Analysis on Thousand-Subject Neuroimaging Datasets

no code implementations16 Aug 2016 Michael J. Anderson, Mihai Capotă, Javier S. Turek, Xia Zhu, Theodore L. Willke, Yida Wang, Po-Hsuan Chen, Jeremy R. Manning, Peter J. Ramadge, Kenneth A. Norman

The scale of functional magnetic resonance image data is rapidly increasing as large multi-subject datasets are becoming widely available and high-resolution scanners are adopted.

Graphlet Decomposition: Framework, Algorithms, and Applications

no code implementations13 Jun 2015 Nesreen K. Ahmed, Jennifer Neville, Ryan A. Rossi, Nick Duffield, Theodore L. Willke

From social science to biology, numerous applications often rely on graphlets for intuitive and meaningful characterization of networks at both the global macro-level as well as the local micro-level.

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