Communications of the ACM
Latest Research
From Communications of the ACM
Technical Perspective: Two for the Price of One
"Lower Bounds for External Memory Integer Sorting via Network Coding" proves a remarkable connection between how efficiently computers can perform sorting and transmitting...
From Communications of the ACM
Lower Bounds for External Memory Integer Sorting via Network Coding
In this paper, we present a tight conditional lower bound on the complexity of external memory sorting of integers.
From Communications of the ACM
Technical Perspective: Progress in Spatial Computing for Flood Prediction
There are few algorithms for multi-flow graphs beyond flow accumulation. The authors of "Flood-Risk Analysis on Terrains" take a big step to fill this knowledge...
From Communications of the ACM
Flood-Risk Analysis on Terrains
In this paper, we study a number of flood-risk related problems, give an overview of efficient algorithms for them, as well as explore the efficacy and efficiency...
From Communications of the ACM
Technical Perspective: Computing the Value of Location Data
"Computing Value of Spatiotemporal Information," by Heba Aly et al., describes a technique for computing the monetary value of a person's location data for a potential...
From Communications of the ACM
Computing Value of Spatiotemporal Information
We investigate the intrinsic value of location data in the context of strong privacy, where location information is only available from end users via purchase. ...
From Communications of the ACM
Technical Perspective: Supporting Linear Algebra Operations in SQL
Do we need a completely new database system to support machine learning?
From Communications of the ACM
Scalable Linear Algebra on a Relational Database System
We show that by making just a few changes to a parallel/distributed relational database system, such a system can become a competitive platform for scalable linear...
From Communications of the ACM
Technical Perspective: ASIC Clouds: Specializing the Datacenter
Can we build purpose-built, warehouse-scale datacenters customized for large-scale arrays of ASIC accelerators or, to use a term coined in the paper by Michael...
From Communications of the ACM
ASIC Clouds: Specializing the Datacenter for Planet-Scale Applications
This paper distills lessons from Bitcoin ASIC Clouds and applies them to other large scale workloads, showing superior TCO (total cost of ownership) versus CPU...
From Communications of the ACM
Technical Perspective: Algorithm Selection as a Learning Problem
"Data-Driven Algorithm Design," by Rishi Gupta and Tim Roughgarden, addresses the issue that the best algorithm to use for many problems depends on what the input...
From Communications of the ACM
Data-Driven Algorithm Design
We model the problem of identifying a good algorithm from data as a statistical learning problem.
From Communications of the ACM
Technical Perspective: An Answer to Fair Division's Most Enigmatic Question
The envy-free cake-cutting problem stood its ground for two decades, until it was cracked by Aziz and Mackenzie. Their solution is presented in "A Bounded and Envy...
From Communications of the ACM
A Bounded and Envy-Free Cake Cutting Algorithm
We report on our algorithm that resolved the well-studied cake cutting problem in which the goal is to find an envy-free allocation of a divisible resource based...
From Communications of the ACM
Technical Perspective: A Perspective on Pivot Tracing
Instead of handing trace records off to a collector for long-term storage and future processing, the system described in "Pivot Tracing: Dynamic Causal Monitoring...
From Communications of the ACM
Pivot Tracing: Dynamic Causal Monitoring for Distributed Systems
This paper presents Pivot Tracing, a monitoring framework for distributed systems, which addresses the limitations of today's monitoring and diagnosis tools by...
From Communications of the ACM
Technical Perspective: Bootstrapping a Future of Open Source, Specialized Hardware
OpenPiton research is one of the watershed moments in the fundamental shift toward the construction of an open source ecosystem for implementing prototype chips...
From Communications of the ACM
OpenPiton: An Open Source Hardware Platform For Your Research
We present OpenPiton, an open source framework for building scalable architecture research prototypes from one core to 500 million cores.
From Communications of the ACM
Technical Perspective: A Whitebox Solution for Blackbox-Like Behaviors
DeepXplore brings a software testing perspective to deep neural networks and, in doing so, creates the opportunity for enormous amounts of follow-on work in several...
From Communications of the ACM