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From Communications of the ACM

Technical Perspective: Do You Know Why Your Web Pages Load Faster?

"Taking a Long Look at QUIC," by Arash Molavi Kakhki et al., is a bold attempt to unearth the reasons why QUIC works better than TCP.

Taking a Long Look at Q­UIC
From Communications of the ACM

Taking a Long Look at Q­UIC: An Approach for Rigorous Evaluation of Rapidly Evolving Transport Protocols

There is a need for alternative techniques for understanding and evaluating QUIC when compared with previous transport-layer protocols.

From Communications of the ACM

Technical Perspective: Back to the Edge

"Heterogeneous Von Neumann/Dataflow Microprocessors" describes an innovative approach to exploit both CDFG and EDGE computation models.

Heterogeneous Von Neumann/Dataflow Microprocessors
From Communications of the ACM

Heterogeneous Von Neumann/Dataflow Microprocessors

This work studies the potential of a paradigm of heterogeneous execution models by developing a specialization engine for explicit-dataflow (SEED) and integrating...

From Communications of the ACM

Technical Perspective: How Economic Theories Can Help Computers Beat the Heat

The authors of "Distributed Strategies for Computational Sprints" bring the rich theory of allocating scarce resources to the challenge of managing computational...

Distributed Strategies for Computational Sprints
From Communications of the ACM

Distributed Strategies for Computational Sprints

We describe a computational sprinting architecture in which many, independent chip multiprocessors share a power supply and sprints are constrained by the chips'...

From Communications of the ACM

Technical Perspective: Attacking Cryptographic Key Exchange with Precomputation

"Imperfect Forward Secrecy: How Diffie-Hellman Fails in Practice," by David Adrian et al., illustrates the importance of taking preprocessing attacks into account...

Imperfect Forward Secrecy
From Communications of the ACM

Imperfect Forward Secrecy: How Diffie-Hellman Fails in Practice

We investigate the security of Diffie-Hellman key exchange as used in popular Internet protocols and find it to be less secure than widely believed.

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: Backdoor Engineering

"Where Did I Leave My Keys?" by Checkoway et al. reports on the amazing independent reconstruction of a backdoor, discovered in the firmware of a VPN router commonly...

Where Did I Leave My Keys?
From Communications of the ACM

Where Did I Leave My Keys?: Lessons from the Juniper Dual EC Incident

In this paper, we describe the results of a full independent analysis of the ScreenOS randomness and VPN key establishment protocol subsystems, which we carried...

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: Graphs, Betweenness Centrality, and the GP­U

"Accelerating GPU Betweenness Centrality" by McLaughlin and Bader ably addresses the challenges to authors of efficient graph implementations in the important context...

Accelerating GP­U Betweenness Centrality
From Communications of the ACM

Accelerating GP­U Betweenness Centrality

We present a hybrid GPU implementation that provides good performance on graphs of arbitrary structure rather than just scale-free graphs as was done previously...

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...

From Communications of the ACM

Technical Perspective: Measuring Optimization Potential with Coz

In "Coz: Finding Code that Counts with Causal Profiling," Curtsinger and Berger describe causal profiling, which tell programmers exactly how much speed-up bang...

Coz
From Communications of the ACM

Coz: Finding Code that Counts with Causal Profiling

This paper introduces causal profiling. Unlike past profiling approaches, causal profiling indicates exactly where programmers should focus their optimization efforts...

From Communications of the ACM

Technical Perspective: On Heartbleed: A Hard Beginnyng Makth a Good Endyng

When a serious security vulnerability is discovered in the SSL/TLS protocol, one would naturally expect a rapid response. "Analysis of SSL Certificate Reissues...
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