Publications
International Journals
Compiling for Vector Extensions with Stream-based Specialization
Nuno Neves, Joao Mario Domingos, Nuno Roma, Pedro Tomás, Gabriel Falcão
IEEE Micro, July 2022
Paper PDF
Decoupling GPGPU Voltage-Frequency Scaling for Deep-Learning Applications
Francisco Mendes, Pedro Tomás, Nuno Roma
JPDC '22: Journal of Parallel and Distributed Computing, July 2022
Paper PDF
Unified Posit/IEEE-754 Vector MAC Unit for Transprecision Computing
Luís Crespo, Pedro Tomás, Nuno Roma, Nuno Neves
TCAS-II '22: IEEE Transactions on Circuits and Systems II: Express Briefs, May 2022
Paper PDF
Gbit/s Throughput Under 6.3-W Lossless Hyperspectral Image Compression on Parallel Embedded Devices
Oscar Ferraz, Gabriel Falcao, Vitor Silva
ESL '21: IEEE Embedded Systems Letters, March 2021
Paper PDF
A Reconfigurable Posit Tensor Unit with Variable-Precision Arithmetic and Automatic Data Streaming
Nuno Neves, Pedro Tomás, Nuno Roma
JSPS '21: Journal of Signal Processing Systems, November 2021
Paper PDF
A Compute Cache System for Signal Processing Applications
João Vieira, Nuno Roma, Gabriel Falcao, Pedro Tomás
JSPS '21: Journal of Signal Processing Systems, April 2021
Paper PDF
Compiler-Assisted Data Streaming for Regular Code Structures
Nuno Neves, Pedro Tomás, Nuno Roma
TC '21: IEEE Transactions on Computers, March 2021
Paper PDF
Fast and Energy-Efficient Approximate Motion Estimation Architecture for Real-Time 4K UHD Processing
Roger Porto, Murilo Perleberg, Vladimir Afonso, Bruno Zatt, Nuno Roma, Luciano Agostini, Marcelo Porto
JRTIP '21: Journal of Real-Time Image Processing, September 2020
Paper PDF
1.2 Watt Classification of 3D Voxel Based Point-clouds using a CNN on a Neural Compute Stick
Xiaofan Xu, Sam Caulfield, Joao Amaro, Gabriel Falcao, David Moloney
Neurocomputing '20, June 2020
Paper PDF
Deep Learning Architectures for Accurate Millimeter Wave Positioning in 5G
João Gante, Gabriel Falcão, Leonel Sousa
NPL '20: Neural Processing Letters, January 2020
Paper PDF
UHD 8K Energy-Quality Scalable HEVC Intra-Prediction SAD Unit Hardware Using Optimized and Configurable Imprecise Adders
Roger Porto, Marcel Correa, Jones Goebel, Bruno Zatt, Nuno Roma, Luciano Agostini, Marcelo Porto
JRTIP '20: Journal of Real-Time Image Processing, December 2019
Paper PDF
GPU Static Modeling using PTX and Deep Structured Learning
João Guerreiro, Aleksandar Ilic, Nuno Roma, Pedro Tomás
IEEE Access '19, December 2019
Paper PDF
Modeling and Decoupling the GPU Power Consumption for Cross-Domain DVFS
João Guerreiro, Aleksandar Ilic, Nuno Roma, Pedro Tomás
TPDS '19: IEEE Transactions on Parallel and Distributed Systems, November 2019
Paper PDF
Modeling and Decoupling the GPU Power Consumption for Cross-Domain DVFS
João Guerreiro, Aleksandar Ilic, Nuno Roma, Pedro Tomás
TPDS '19: IEEE Transactions on Parallel and Distributed Systems, November 2019
Paper PDF
Heterogeneous Implementation of a Voronoi Cell-Based SVP Solver
Gabriel Falcão, Filipe Cabeleira, Artur Mariano, Luis Paulo Santos
IEEE Access '19, September 2019
Paper PDF
Flying Tourist Problem: Flight Time and Cost Minimization in Complex Routes
Rafael Marques, Luís Russo, Nuno Roma
ESWA '19: Expert Systems with Applications, September 2019
Paper PDF
International Conferences
gem5-ndp: Near-Data Processing Architecture Simulation From Low Level Caches to DRAM
João Vieira, Nuno Roma, Gabriel Falcao, Pedro Tomás
SBAC-PAD '22: IEEE International Symposium on Computer Architecture and High Performance Computing, November 2022
Paper PDF
Mode-Adaptive Subsampling of SAD/SSE Operations for Intra Prediction Cost Reduction
Marcel Moscarelli Corrêa, Nuno Roma, Daniel Palomimo, Guilherme Corrêa, Luciano Agostini
ISCAS '22: IEEE International Symposium on Circuits & Systems, May 2022
Paper PDF
PositNN: Training Deep Neural Networks with Mixed Low-Precision Posit
Gonçalo Raposo, Pedro Tomás, Nuno Roma
ICASSP '21: IEEE International Conference on Acoustics, Speech, and Signal Processing, June 2021
Paper PDF
Unlimited Vector Extension with Data Streaming Support
João Domingos, Nuno Neves, Nuno Roma, Pedro Tomás
ISCA '21: ACM/IEEE 48th Annual International Symposium on Computer Architecture, June 2021
Paper PDF
Packing and Fusing Narrow-Width Vector Operations for Energy-Efficient SIMD
Miguel Pinho, Pedro Tomás, Nuno Roma
HPCS '20: International Conference on High Performance Computing & Simulation, March 2021
Paper PDF
Neighborhood-Aware Autoencoder for Missing Value Imputation
Helena Aidos, Pedro Tomás
EUSIPCO '20': European Signal Processing Conference, January 2021
Paper PDF
Dynamic Fused Multiply-Accumulate Posit Unit with Variable Exponent Size for Low-Precision DSP Applications
Nuno Neves, Pedro Tomás, Nuno Roma
SIPS '20': IEEE Workshop on Signal Processing Systems, October 2020
Paper PDF
Pushing the Limits of Energy Efficiency for Non-Binary LDPC Decoders on GPUs and FPGAs
Srinivasan Subramaniyan, Oscar Ferraz, M. R. Ashuthosh, Santosh Krishna, Guohui Wang, Joseph R. Cavallaro, Vitor Silva, Gabriel Falcao, Madhura Purnaprajna
SIPS '20': IEEE Workshop on Signal Processing Systems, October 2020
Paper PDF
Exploiting Non-conventional DVFS on GPUs: Application to Deep Learning
Francisco Mendes, Pedro Tomás, Nuno Roma
SBAC-PAD '20': IEEE International Symposium on Computer Architecture and High Performance Computing, September 2020
Paper PDF
2PSA: An Optimized and Flexible Power-Precision Scalable Adder
Roger Porto, Bruno Zatt, Nuno Roma, Luciano Agostini, Marcelo Porto
SBCCI '20': 33rd Symposium on Integrated Circuits and Systems Design, August 2020
Paper PDF
Reconfigurable Stream-based Tensor Unit with Variable-Precision Posit Arithmetic
Nuno Neves, Pedro Tomás, Nuno Roma
ASAP '20': IEEE 31st International Conference on Application-specific Systems, Architectures and Processors, July 2020
Paper PDF
Processing Convolutional Neural Networks on Cache
João Vieira, Nuno Roma, Gabriel Falcao, Pedro Tomás
ICASSP '20': IEEE International Conference on Acoustics, Speech and Signal Processing, May 2020
Paper PDF
1.5Gbit/s 4.9W Hyperspectral Image Encoders On A Low-Power Parallel Heterogeneous Processing Platform
Oscar Ferraz, Vitor Silva, Gabriel Falcao
ICASSP '20': IEEE International Conference on Acoustics, Speech and Signal Processing, May 2020
Paper PDF
Gbit/s Non-Binary LDPC Decoders: High-Throughput using High-Level Specifications
Oscar Ferraz, Srinivasan Subramaniyan, Guohui Wang, Joseph R. Cavallaro, Gabriel Falcao, Madhura Purnaprajna
FCCM '20': IEEE 28th Annual International Symposium on Field-Programmable Custom Computing Machines, May 2020
Paper PDF
Heart Disease Detection Architecture for Lead I Off-the-Person ECG Monitoring Devices
Pedro Sá, Helena Aidos, Nuno Roma, Pedro Tomás
EUSIPCO '19': European Signal Processing Conference, September 2019
Paper PDF
Power-Efficient Approximate SAD Architecture with LOA Imprecise Adders
Roger Porto, Luciano Agostini, Bruno Zatt, Nuno Roma, Marcelo Porto
LASCAS '19': IEEE Latin American Symposium on Circuits and Systems, February 2019
Paper PDF
Pragma-Oriented Parallelization of the Direct Sparse Odometry SLAM Algorithm
Cesar Pereira, Gabriel Falcao, and Luís A. Alexandre
PDP '19': 27th Euromicro International Conference on Parallel, Distributed and Network-Based Processing, February 2019
Paper PDF
Exploiting Non-conventional DVFS on GPUs: Application to Deep Learning
João Vieira, Paolo Ienne, Nuno Roma, Gabriel Falcao, Pedro Tomás
SBAC-PAD '18': International Symposium on Computer Architecture and High Performance Computing, September 2018
Paper PDF
PhD Thesis
The Interplay Between Positioning and Beamforming in Millimeter Wave Communications
João Gante
PhD Thesis, Electrical and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, November 2020
Thesis PDF
DVFS Modeling for Energy-Efficient GPU Computing
João Guerreiro
PhD Thesis, Electrical and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, July 2020
Thesis PDF
Exploração de Computação Aproximada no Projeto de Hardware Dedicado de Baixo Consumo para a Codificação de Vídeo em Dispositivos Móveis
Roger Porto
PhD Thesis, Universidade Federal de Pelotas, April 2020
Thesis PDF
Energy-Efficient Computing: Adaptive Structures and Data Management
Nuno Neves
PhD Thesis, Electrical and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, January 2019
Thesis PDF
MSc Thesis
Automatic Detection of Forest Fires: A Deep Learning Approach
André Marrucho
MSc Thesis, Electrical and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, December 2021
Thesis PDF
Supporting Posits in Deep Learning Frameworks: A PyTorch Implementation
Afonso Luz
MSc Thesis, Electrical and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, November 2021
Thesis PDF
LLVM Backend Support for Data Streaming Extensions
Tiago Pires
MSc Thesis, Electrical and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, November 2021
Thesis PDF
Vector Multiply-Accumulate Unit for Transprecision Computing
Luís Crespo
MSc Thesis, Electrical and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, November 2021
Thesis PDF
Deep Learning with Approximate Computing: An Energy-Efficient Approach
Gonçalo Raposo
MSc Thesis, Aerospace Engineering, Instituto Superior Técnico, Universidade de Lisboa, January 2021
Thesis PDF
RISC-V Processing System with Streaming Support
Eduardo Melo
MSc Thesis, Electrical and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, January 2021
Thesis PDF
Unlimited Vector Extension with Data Streaming Support
João Domingos
MSc Thesis, Electrical and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, October 2020
Thesis PDF
Taking GPU beyond its conventional DVFS limits in machine learning applications
Francisco Mendes
MSc Thesis, Electrical and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, October 2020
Thesis PDF
Unlimited Vector Extension with Data Streaming Support
João Domingos
MSc Thesis, Electrical and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, October 2020
Thesis PDF
Packing and Fusing Narrow-Width Vector Operations for Energy-Efficient SIMD
Miguel Pinho
MSc Thesis, Electrical and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, July 2020
Thesis PDF
Neural Networks, Deepfloat & Tensorflow Lite Post-Training Quantization - Case Study
Simão Dias
MSc Thesis, Electrical and Computer Engineering, Universidade de Coimbra, Fevereiro 2020
Thesis PDF
Flying Tourist Problem An Integer Linear Programming Approach
Francisco Santos
MSc Thesis, Aerospace Engineering, Instituto Superior Técnico, Universidade de Lisboa, November 2019
Thesis PDF
Configurable RISC-V softcore processor for FPGA implementation
João Rodrigues
MSc Thesis, Electrical and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, November 2019
Thesis PDF
Combining Low-Power With Parallel Processing For Multispectral And Hyperspectral Image Compression
Óscar Ferraz
MSc Thesis, Electrical and Computer Engineering, Universidade de Coimbra, Setembro 2019
Thesis PDF
Exploiting Processing Near Cache for Memory Bound Vector Operations
João Vieira
MSc Thesis, Electrical and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, November 2018
Thesis PDF
Flight Time and Cost Minimization in Complex Routes
Rafael Marques
MSc Thesis, Aerospace Engineering, Instituto Superior Técnico, Universidade de Lisboa, November 2018
Thesis PDF
Video Compression Using (End-to-End) Deep Learning
Jorge Pessoa dos Santos
MSc Thesis, Information Systems and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, October 2018
Thesis PDF