Communications of the ACM
Latest Research
From Communications of the ACM
Convolution Engine: Balancing Efficiency and Flexibility in Specialized Computing
We present the Convolution Engine (CE) — a programmable processor specialized for the convolution-like data-flow prevalent in computational photography, computer...
From Communications of the ACM
Technical Perspective: Image Processing Goes Back to Basics
In "Local Laplacian Filters," Paris et al. made a surprising move. They chose to build a system on the Laplacian pyramid, which is a very simple multiscale representation...
From Communications of the ACM
Local Laplacian Filters: Edge-Aware Image Processing with a Laplacian Pyramid
In this paper, we demonstrate that state-of-the-art edge-aware filters can be achieved with standard Laplacian pyramids.
From Communications of the ACM
Technical Perspective: The Equivalence Problem For Finite Automata
As the equivalence problem is essential in many applications, we need algorithms that avoid the worst-case complexity as often as possible. In "Hacking Nondeterminism...
From Communications of the ACM
Hacking Nondeterminism with Induction and Coinduction
We introduce bisimulation up to congruence as a technique for proving language equivalence of nondeterministic finite automata.
From Communications of the ACM
Technical Perspective: Big Data Needs Approximate Computing
"Neural Acceleration for General-Purpose Approximate Programs" demonstrates the significant advantages in cost, power, and latency through approximate computing...
From Communications of the ACM
Neural Acceleration For General-Purpose Approximate Programs
This paper describes a new approach that uses machine learning-based transformations to accelerate approximation-tolerant programs.
From Communications of the ACM
Technical Perspective: Rethinking Caches For Throughput Processors
As GPUs have become mainstream parallel processing engines, many applications targeting GPUs now have data locality more amenable to traditional caching. The...
From Communications of the ACM
Learning Your Limit: Managing Massively Multithreaded Caches Through Scheduling
This paper studies the effect of accelerating highly parallel workloads with significant locality on a massively multithreaded GPU.
From Communications of the ACM
Technical Perspective: The Intricate Dance of Fabric and Light
For years, graphics programs have simulated fabric as a collection of fibers, requiring tweaks to algorithms for each new fabric. "Building Volumetric Appearance...
From Communications of the ACM
Building Volumetric Appearance Models of Fabric Using Micro CT Imaging
Visualizing and rendering cloth has been an important area of graphics research for decades. This paper proposes a new approach to acquiring volume models, based...
From Communications of the ACM
Technical Perspective: Attacking a Problem from the Middle
"Dissection: A New Paradigm for Solving Bicomposite Search Problems," by Itai Dinur, Orr Dunkelman, Nathan Keller, and Adi Shamir, presents an elegant new algorithm...
From Communications of the ACM
Dissection: A New Paradigm For Solving Bicomposite Search Problems
In this paper, we introduce the new notion of bicomposite search problems, and show that they can be solved with improved combinations of time and space complexities...
From Communications of the ACM
Technical Perspective: Portraiture in the Age of Big Data
"Moving Portraits" is, in some sense, part of the perpetual quest to capture the perfect portrait. Its principal contribution is in adapting this age-old problem...
From Communications of the ACM
Moving Portraits
We present an approach for generating face animations from large image collections of the same person. By optimizing the quantity and order in which photos are...
From Communications of the ACM
Technical Perspective: Getting Consensus For Data Replication
The following paper is a breakthrough in which the authors offer a formula to calculate the probability of reading data that was not written by one of the K most...
From Communications of the ACM
Quantifying Eventual Consistency with PBS
Eventual consistency is often "good enough" for practitioners given its latency and availability benefits. In this work, we explain this phenomenon and demonstrate...
From Communications of the ACM
Technical Perspective: The Power of Joint Multiuser Beamforming
Having multiple Wi-Fi Access Points with an overlapping coverage area operating on the same frequency may not be a problem anymore.
From Communications of the ACM
JMB: Scaling Wireless Capacity with User Demands
JMB, a joint multiuser beamforming system, enables independent access points (APs) to beamform their signals and communicate with their clients on the same channel...
From Communications of the ACM