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From Communications of the ACM

Technical Perspective: From Virtual Worlds to Digital Fabrication

The authors of "OpenFab" propose to revisit the processing pipeline that turns a 3D model into machine instructions in light of the solutions developed in computer...

OpenFab
From Communications of the ACM

OpenFab: A Programmable Pipeline for Multimaterial Fabrication

We present OpenFab, a programmable pipeline for synthesis of multimaterial 3D printed objects that is inspired by RenderMan and modern GPU pipelines.

From Communications of the ACM

Technical Perspective: To Do or Not To Do: Extending SQL with Integer Linear Programming?

"Scalable Computation of High-Order Optimization Queries," by Brucato et al., makes a case for marrying the well-established paradigms of constrained optimization...

Scalable Computation of High-Order Optimization Queries
From Communications of the ACM

Scalable Computation of High-Order Optimization Queries

We present a complete system that supports package queries, a new query model that extends traditional database queries to handle complex constraints and preferences...

From Communications of the ACM

Technical Perspective: Making Sleep Tracking More ­User Friendly

"LIBS: A Bioelectrical Sensing System from Human Ears for Staging Whole-Night Sleep Study" provides a nice balance in terms of minimizing the burden on users and...

LIBS
From Communications of the ACM

LIBS: A Bioelectrical Sensing System from Human Ears for Staging Whole-Night Sleep Study

We explore a new form of wearable systems, called LIBS, that can continuously record biosignals such as brain wave, eye movements, and facial muscle contractions...

From Communications of the ACM

Technical Perspective: A Control Theorist's View on Reactive Control for Autonomous Drones

"Fundamental Concepts of Reactive Control for Autonomous Drones" introduces the notion of "reactive control" in which an autopilot's control logic is run only intermittently...

Fundamental Concepts of Reactive Control for Autonomous Drones
From Communications of the ACM

Fundamental Concepts of Reactive Control for Autonomous Drones

We conceive a notion of reactive control that allows drones to execute the low-level control logic only upon recognizing the need to, based on the influence of...

From Communications of the ACM

Technical Perspective: Is Your WiFi a Sensor?

"Emotion Recognition Using Wireless Signals" shows that not only can the heartrate be counted with accuracy comparable to ECG devices, but the variabilities of...

Emotion Recognition ­sing Wireless Signals
From Communications of the ACM

Emotion Recognition ­sing Wireless Signals

This paper demonstrates a new technology that can infer a person's emotions from RF signals reflected off his body.

From Communications of the ACM

Technical Perspective: The Rewards of Selfish Mining

"Majority Is Not Enough: Bitcoin Mining Is Vulnerable," by Eyal and Sirer, questions the 2009 Bitcoin white paper's implicit assumption of perfect information—that...

Majority Is Not Enough
From Communications of the ACM

Majority Is Not Enough: Bitcoin Mining Is Vulnerable

We propose a practical modification to the Bitcoin protocol that protects Bitcoin in the general case.

From Communications of the ACM

Technical Perspective: A Graph-Theoretic Framework Traces Task Planning

In "Time-Inconsistent Planning: A Computational Problem in Behavioral Economics," Kleinberg and Oren describe a graph-theoretic framework for task planning with...

Time-Inconsistent Planning
From Communications of the ACM

Time-Inconsistent Planning: A Computational Problem in Behavioral Economics

We propose a graph-theoretic model of tasks and goals, in which dependencies among actions are represented by a directed graph, and a time-inconsistent agent constructs...

From Communications of the ACM

Technical Perspective: Designing Algorithms and the Fairness Criteria They Should Satisfy

"Which Is the Fairest (Rent Division) of Them All?" focuses on the problem of rent division, and stands out in the variety of techniques applied to arrive at a...

Which Is the Fairest (Rent Division) of Them All?
From Communications of the ACM

Which Is the Fairest (Rent Division) of Them All?

What is a fair way to assign rooms to several housemates, and divide the rent between them? We develop a general algorithmic framework that enables the computation...

From Communications of the ACM

Technical Perspective: Can High Performance Be Portable?

"Halide: Decoupling Algorithms from Schedules for High-Performance Image Processing" by Ragan-Kelley et al. on the image processing language Halide explores a substantially...

Halide
From Communications of the ACM

Halide: Decoupling Algorithms from Schedules For High-Performance Image Processing

We propose a new programming language for image processing pipelines, called Halide, that separates the algorithm from its schedule.

From Communications of the ACM

Technical Perspective: Moving Spectrum

The incentive auction scenario provides the backdrop for the breathtaking research contribution presented by Newman et al. in "Deep Optimization for Spectrum Repacking...

Deep Optimization For Spectrum Repacking
From Communications of the ACM

Deep Optimization For Spectrum Repacking

This paper describes the process by which we built the SAT-based Feasibility Checker, a crucial element of the 2016-17 U.S. FCC "incentive auction" design.
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