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Communications of the ACM

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The blog archive provides access to past blog postings from Communications of the ACM and other sources by date.

April 2019


From The Eponymous Pickle

AI Adoption in Retail

AI Adoption in Retail

General general overview, not enough direct examples. 

Forecasting AI Adoption in Retail: A Mixed Bag  By Alex Woodie in Datanami

You don’t have to look far to see the impact that artificial intelligence is having on the world

A…


From insideHPC

Cornell Investigates Multi-cloud Cost Management with RightScale

Cornell Investigates Multi-cloud Cost Management with RightScale

The Cornell University Center for Advanced Computing (CAC) is collaborating with RightScale, recently acquired by Flexera, to understand how to best manage and optimize costs in a multi-cloud world. "Universities and research…


From The Eponymous Pickle

Wal-Mart Vudu Competes with Shoppable Ads

Wal-Mart Vudu Competes with Shoppable Ads

Had actually forgotten about the Wal-Mart streaming service Vudu.  Interesting experiment to understand what evokes interaction and get related data.  Buying directly from integrated product in video has long been a holy grail…


From insideHPC

HPC Breaks Through to the Cloud: Why It Matters

HPC Breaks Through to the Cloud: Why It Matters

In this special guest feature, Scot Schultz from Mellanox writes researchers are benefitting in a big way from HPC in the Cloud. "HPC has many different advantages depending on the specific use case, but one aspect that these…


From insideHPC

New Funding and DARPA Grant to Propel Optical Interconnects at Ayar Labs

New Funding and DARPA Grant to Propel Optical Interconnects at Ayar Labs

Today Ayar Labs announced that the company has secured additional funding to fuel its growth as it drives to productize its TeraPHY optical I/O chiplets and SuperNova multi-wavelength lasers in 2019. The company aims to disrupt…


From insideHPC

Bill Dally from NVIDIA presents: Accelerating AI

Bill Dally from NVIDIA presents: Accelerating AI

Bill Daly from NVIDIA gave this talk at the Matroid Scaled Machine Learning Conference. "The world of computing is experiencing an incredible change with the introduction of deep learning and AI. Deep learning relies on GPU acceleration…


From insideHPC

Call for Presentations: MVAPICH User Group in August

Call for Presentations: MVAPICH User Group in August

The 7th annual MVAPICH User Group (MUG) meeting has issued its Call for Presentations. MUG will take place from August 19-21, 2019 in Columbus, Ohio. "MUG aims to bring together MVAPICH2 users, researchers, developers, and system…


From Gödel's Lost Letter and P=NP

Network Coding Yields Lower Bounds

Practice leads theory Peyman Afshani, Casper Freksen, Lior Kamma, and Kasper Larsen have a beautiful new paper titled “Lower Bounds for Multiplication via Network Coding”. Today we will talk about how practical computing played…


From The Eponymous Pickle

Improving Wifi Security

Improving Wifi Security

Wifi is so commonly used, it needs to be secure in its basic defaul tuse.

Enterprise Wi-Fi: We Need Devices That Are Secure by Default
By Alberto Bartoli, Eric Medvet, Andrea De Lorenzo, Fabiano Tarlao , Communications of the ACM…


From The Eponymous Pickle

Heat Transfer in Boiling Water

Heat Transfer in Boiling Water

Had a minor involvement, as a lab assistant, in studies about the transfer of heat, at first in boiling water, and later applied to stellar atmospheres. It's more complex than you think.

Getting to the bottom of the “boiling…


From The Eponymous Pickle

Machine Behavior

Machine Behavior

We behave, machines exhibit behavior.   Both can be trained with examples and practice and direction.   Both have been collaborating for some time.   But only recently have machines been given the opportunity to take small amounts…


From The Computing Community Consortium Blog

A Picture of A Black Hole Shows How Cool Computer Science Is

A Picture of A Black Hole Shows How Cool Computer Science Is

Contributions to this post were graciously provided by CCC Director Ann Schwartz and CCC Chair Mark Hill. Computer science is cool, but you already knew that. You are in this field because you find it cool, exciting, and limitless…


From Schneier on Security

Defending Democracies Against Information Attacks

Defending Democracies Against Information Attacks

To better understand influence attacks, we proposed an approach that models democracy itself as an information system and explains how democracies are vulnerable to certain forms of information attacks that autocracies naturally…


From The Eponymous Pickle

US to Use AI to Scan Passengers Faces

US to Use AI to Scan Passengers Faces

This is inevitable, and will sooner be in most non US airports.  Every CCTV camera will soon be online with face recognition.

U.S. Airports Will Use AI To Scan 97% Of Passengers' Faces Within 4 Years    in Forbes   By Nicole Martin…


From [email protected]

Breaking the Chains of Freelance Slavery

Breaking the Chains of Freelance Slavery

The idea of working from home is no longer novel, and there are a number of drawbacks to consider.


From insideHPC

Liqid Enables Multi-Fabric Support for Composable Infrastructure

Liqid Enables Multi-Fabric Support for Composable Infrastructure

Today Liqid announced unified multi-fabric support for composability across all major fabric types including PCIe Gen 3, PCIe Gen 4, Ethernet, Infiniband, and laying the foundation for the up-coming Gen-Z specifications. "Providing…


From The Eponymous Pickle

How Python is used at Netflix

How Python is used at Netflix

An instructive piece in the Netflix tech blog.   Netflix has to reliably delivery large amounts of data, personalized to millions of consumers, reliably and securely.    While gathering information to tailor their sales and marketing…


From The Computing Community Consortium Blog

NSF/CISE Launches Search Committee for Computer and Network Systems (CNS) Division Director

NSF/CISE Launches Search Committee for Computer and Network Systems (CNS) Division Director

The following is a letter to the community from James Kurose, Assistant Director, and Erwin Gianchandani, Deputy Assistant Director, of the National Science Foundation (NSF) Directorate of Computer & Information Science & Engineering…


From insideHPC

Beluga Supercomputer comes to Calcul Québec

Beluga Supercomputer comes to Calcul Québec

Calcul Québec has deployed a new supercomputer to power research in Canada. With over 28,000 compute cores and 688 NVIDIA V100 GPUs, the new Béluga system was first made available at the beginning of April and is now the main…


From The Eponymous Pickle

Feedback loops for Neural Nets

Feedback loops for Neural Nets

I remember something similar posed in the 90s, tat feedback could converge to better results. Or at least produce some better next step position.   Don't recall any work suggest progress back then.  Now its here?  Lots more detail…


From insideHPC

GPU Technology Conference Returns to DC in November

GPU Technology Conference Returns to DC in November

NVIDIA's GPU Technology Conference will returns to Washington, D.C. Nov 5-6, 2019. "GTC is the premier AI and deep learning conference series, providing you with training, insights, and direct access to experts from NVIDIA and…


From insideHPC

Register for the Altair Student Competition for Innovation in Electromagnetics

Register for the Altair Student Competition for Innovation in Electromagnetics

Altair invites engineering students from across the globe to participate in their Student Competition for Innovation in Electromagnetics. “At a time when energy efficiency is a global priority, students can use Altair software…


From insideHPC

Long Live Posix – HPC Storage and the HPC Datacenter

Long Live Posix – HPC Storage and the HPC Datacenter

Robert Triendl from DDN gave this talk at the Swiss HPC Conference. "The Portable Operating System Interface (POSIX) is a family of standards specified by the IEEE Computer Society for maintaining compatibility between operating…


From The Eponymous Pickle

Strategy for Voice Technology

Strategy for Voice Technology

HBR on the topic.  Very good overview, some good stats referred to.   I think most consumer facing companies are thinking about voice, but a specific strategy is harder.    Recall the emergence of the smartphone and tablets,

Your…


From The Eponymous Pickle

An Initial Look at Wal-Mart's Future Store

An Initial Look at Wal-Mart's Future Store

FastCompany takes an initial look.  Different it seems, from what we did in our future store.  Less direct research and more, promotion of themselves as a forward looking company.   Good piece, expect to see more on the topic…


From Computer Science Teacher - Thoughts and Information From Alfred Thompson

Game of Thrones and Computer Science

Game of Thrones and Computer Science

I confess that I have not watched a single episode of Game of Thrones.  That doesn’t mean I am oblivious to the social impact of the show. My online social media is full of it. So when Rita Tillson Vasak linked to this SlateIt…


From The Eponymous Pickle

Emotions in Group Photos

Emotions in Group Photos

More than just spotting but also getting the emotion of multiple people.     Could lead to the further understanding  of crowds in contect.

Spotting Faces in the Crowd
from University of Delaware   By Julie Stewart

University of…


From The Eponymous Pickle

Cheaper Robot Arms for Human Tasks

Cheaper Robot Arms for Human Tasks

New ideas in lower cost robotics.

Blue Is a New Low-Cost Force-Controlled Robot Arm from UC Berkeley
Designed to safely perform human-scale tasks, Blue will cost $5k and help accelerate research towards useful home robots    By…


From Schneier on Security

Stealing Ethereum by Guessing Weak Private Keys

Stealing Ethereum by Guessing Weak Private Keys

Someone is stealing millions of dollars worth of Ethereum by guessing users' private keys. Normally this should be impossible, but lots of keys seem to be very weak. Researchers are unsure how those weak keys are being generated…


From Computational Complexity

x3 + y3 + z3 = 33 has a solution in Z. And its big!

Consider the following problem:



Given k, a natural number, determine if there exists x,y,z INTEGERS such that x3+y3+z3=k.



It is not obvious that this problem is decidable (I think it is but have not been able to find an exact…

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