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From Communications of the ACM

Technical Perspective: Computing with the Crowd

What kinds of problems can be solved with combined human and machine computation? "AutoMan: A Platform for Integrating Human-Based and Digital Computation," by...

AutoMan
From Communications of the ACM

AutoMan: A Platform for Integrating Human-Based and Digital Computation

We introduce AutoMan, the first fully automatic crowdprogramming system.

From Communications of the ACM

Technical Perspective: Veritesting Tackles Path-Explosion Problem

 "Enhancing Symbolic Execution with Veritesting" by Avgerinos et al. proposes an effective technique called veritesting that addresses the scalability limitations...

Enhancing Symbolic Execution with Veritesting
From Communications of the ACM

Enhancing Symbolic Execution with Veritesting

In this article, we present a new technique for generating formulas called veritesting that alternates between static symbolic execution (SSE) and dynamic symbolic...

From Communications of the ACM

Technical Perspective: A Breakthrough in Software Obfuscation

In "Hiding Secrets in Software," Garg et al. construct a "one-way compiler" of the type envisioned by Diffie and Hellman.

Hiding Secrets in Software
From Communications of the ACM

Hiding Secrets in Software: A Cryptographic Approach to Program Obfuscation

Can we hide secrets in software? Can we make programs unintelligible while preserving their functionality? Why would we even want to do this? In this article, we...

From Communications of the ACM

Technical Perspective: Software Is Natural

"On the Naturalness of Software" by Hindle et al. takes an entirely new approach to providing tools to help build software.

On the Naturalness of Software
From Communications of the ACM

On the Naturalness of Software

We begin with the conjecture that most software is natural, with all the attendant constraints and limitations — and thus, like natural language, it is also likely...

From Communications of the ACM

Technical Perspective: The State (and Security) of the Bitcoin Economy

"A Fistful of Bitcoins" examines, in the context of Bitcoin, what we could learn by studying the patterns encoded in a complete record of every single financial...

A Fistful of Bitcoins
From Communications of the ACM

A Fistful of Bitcoins: Characterizing Payments among Men with No Names

Bitcoin has the unintuitive property that while the ownership of money is implicitly anonymous, its flow is globally visible. In this paper we explore this unique...

From Communications of the ACM

Technical Perspective: Fairness and the Coin Flip

"Secure Multiparty Computations on Bitcoin" introduces an exciting new idea for how to provide fairness: leverage Bitcoin’s existing infrastructure for distributed...

Secure Multiparty Computations on Bitcoin
From Communications of the ACM

Secure Multiparty Computations on Bitcoin

In this work, we propose to use Bitcoin to design fully decentralized protocols that are secure even if no trusted third party is available.

From Communications of the ACM

Technical Perspective: Taming the Name Game

In "Learning to Name Objects," the authors offer a method to determine a basic-level category name for an object in an image.

Learning to Name Objects
From Communications of the ACM

Learning to Name Objects

This paper looks at the problem of predicting category labels that mimic how human observers would name objects.

From Communications of the ACM

Technical Perspective: STACKing Up Undefined Behaviors

In "A Differential Approach to Undefined Behavior Detection," Wang et al. hypothesize that any time a compiler is able to delete code by using reasoning based on...

A Differential Approach to Undefined Behavior Detection
From Communications of the ACM

A Differential Approach to Undefined Behavior Detection

This paper studies undefined behavior arising in systems programming languages such as C/C++. We introduce a new static checker called STACK that precisely identifies...

From Communications of the ACM

Technical Perspective: Program Synthesis Using Stochastic Techniques

The authors of "Stochastic Program Optimization" have developed a stochastic search technique and applied it to program optimization.

Stochastic Program Optimization
From Communications of the ACM

Stochastic Program Optimization

By encoding constraints of transformation correctness as terms in a cost function, and using a Markov Chain Monte Carlo sampler to explore the space of all possible...

From Communications of the ACM

Technical Perspective: Catching Lies (and Mistakes) in Offloaded Computation

The system described in "Pinocchio: Nearly Practical Verifiable Computation" refines an important theoretical advance by Gennaro et al. Together, these two works represent...

Pinocchio
From Communications of the ACM

Pinocchio: Nearly Practical Verifiable Computation

To instill greater confidence in computations outsourced to the cloud, we introduce Pinocchio, a built system for efficiently verifying general computations while...
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