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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.

March 2021


From The Eponymous Pickle

Syncing time on Smartphones for Measurements

Syncing time on Smartphones for Measurements

Can be useful for synchronization of measurement.

Twist-n-Sync: Skoltech Scientists Use Smartphone Gyroscopes to Sync Time Across Devices

Skolkovo Institute of Science and Technology (Russia)

February 19, 2021

A software-based algorithm…


From Putting People First

What’s mine is ours: how consumption is changing

What’s mine is ours: how consumption is changing

When customers form an emotional attachment or self-identify with a product, that sense of “mine” enhances its luster and keeps them coming back for more. As shoppers shift away from owning material things, how can marketers…


From Putting People First

[Book] A City Is Not a Computer

[Book] A City Is Not a Computer

A bold reassessment of "smart cities" that reveals what is lost when we conceive of our urban spaces as computers


From Gödel's Lost Letter and P=NP

WSJ Meets Group Algorithms

Our whole life is solving puzzles. — Ernő Rubik Cropped from source Jessica Fridrich is a Distinguished Professor of Electrical and Computer Engineering at Binghamton University. She is an expert on data hiding, that is, steganography…


From insideHPC

IBM Says Quantum Error Correcting Software Coming in 2023 – ‘Quantum Comes of Age’

IBM Says Quantum Error Correcting Software Coming in 2023 – ‘Quantum Comes of Age’

If quantum isn’t to be a technology “that’s always 10 years away,” then quantum error correction (QEC) – one of the high hurdles to quantum becoming a practical reality – must be tamed.  This week at a Wall Street Journal virtual…


From The Eponymous Pickle

AWS Enhances Amazon Managed Blockchain with Ethereum support

AWS Enhances Amazon Managed Blockchain with Ethereum support

 This is interesting because it incudes ethereum support for Smart Contracts, being examined here.

AWS Enhances Amazon Managed Blockchain with Ethereum support  By Maria Deutscher  in SiliconAngle

Amazon Web Services Inc. has launched…


From BLOG@CACM

Is the Pandemic Affecting Science and Engineering Undergraduate Students?

Is the Pandemic Affecting Science and Engineering Undergraduate Students?

The importance of the students’ voice.


From The Eponymous Pickle

AI Finds Battery Materials

AI Finds Battery Materials

More detail about the method at the link.

Using AI to Find Essential Battery Materials

As battery demand soars, researchers are turning to artificial intelligence for more effective and sustainable methods    By Maria GallucciDemand…


From Schneier on Security

Four Microsoft Exchange Zero-Days Exploited by China

Four Microsoft Exchange Zero-Days Exploited by China

Microsoft has issued an emergency Microsoft Exchange patch to fix four zero-day vulnerabilities currently being exploited by China.


From The Eponymous Pickle

AI Video Analysis in Athletics

AI Video Analysis in Athletics

An example of how AI pattern recognition can achieve fine grain pattern detection and matching.   Here in athletic training planning and evaluation.   Note links to an athletic tracking system that might be used to provide data…


From Daniel Lemire's Blog

How does your programming language handle “minus zero” (-0.0)?

How does your programming language handle “minus zero” (-0.0)?

The ubiquitous IEEE floating-point standard defines two numbers to represent zero, the positive and the negative zeros. You also have the positive and negative infinity. If you compute the inverse of the positive zero, you get…


From The Eponymous Pickle

Soft Robot Swims in the Mariana Trench

Soft Robot Swims in the Mariana Trench

An example of extreme exploration, using a soft biomimicking design.  Considerable possibilities here.

Soft robot swims in the Mariana Trench  in Techexplore by Bob Yirka 

A team of researchers affiliated with multiple institutions…


From The Eponymous Pickle

China Charges Ahead with National Digital Currency

China Charges Ahead with National Digital Currency

Implications of these changes for US and Others? 

China Charges Ahead with National Digital Currency  By The New York Times,  March 4, 2021

China has charged ahead with a bold effort to remake the way that government-backed money…


From The Eponymous Pickle

Quantum Wavelength Switch

Quantum Wavelength Switch

Interesting direction outlines.   Note the number of users in the quantum network being key.

Quantum Internet Closer to Reality, Thanks to This Switch

By Purdue University News,  March 3, 2021

A new study has found that using aEngineers…


From insideHPC

DevGraph CloudFix Designed to Cut AWS Costs

DevGraph CloudFix Designed to Cut AWS Costs

 Austin,  TX – DevGraph has released CloudFix AWS cost optimization software, built to automatically analyzes AWS accounts and find cost-savings opportunities and automatically deploy fixes at scale. “As a heavy AWS user ourselves…


From insideHPC

CoolIT Receives Growth Investment

CoolIT Receives Growth Investment

Calgary, Alberta. March 4, 2020 – CoolIT Systems, maker of scalable direct liquid cooling technology (DLC), has announced the completion of an undisclosed eight figure investment led by BDC Capital (BDCC), the investment arm …


From insideHPC

10 Teams Slated for 1st Winter Classic Student Cluster Competition

10 Teams Slated for 1st Winter Classic Student Cluster Competition

Dan Olds, chief research officer at HPC industry analyst firm Intersect360, provides this update on the Winter Classic Invitational Student Cluster Competition that he is organizing. Back up NCAA, check yourself March Madness…


From The Eponymous Pickle

Amazon Launches tools to Manage Workflows

Amazon Launches tools to Manage Workflows

We were mainly looking at how to manage work flows in general,  but the same goal really.    Replace some of the resource components with robots, people, analytics external flows.  Like to see the examples of how and measures…


From insideHPC

Leopard Imaging Teams with Socionext, Hailo, AWS for AI Video Analytics    

Leopard Imaging Teams with Socionext, Hailo, AWS for AI Video Analytics    

FREMONT, CA, YOKOHAMA and TEL AVIV, Israel, March 3, 2021 — Leopard Imaging Inc., provider of embedded camera design and manufacturing, is collaborating with three leading companies to deliver EdgeTuring: an artificial intelligence…


From insideHPC

Fabless Semiconductor Startup Xsight Labs Closes Series D Led by Valor and Atreides, Joined by Fidelity

Fabless Semiconductor Startup Xsight Labs Closes Series D Led by Valor and Atreides, Joined by Fidelity

TEL-AVIV and SAN JOSE — March 3, 2021— Xsight Labs, a fabless semiconductor startup company, today announced the closing of its Series D funding. The round was led by Valor Equity Partners and Atreides Management and was joined…


From insideHPC

CoolIT Systems in Agreement with nVent for High Density Rack-level Liquid Cooling

CoolIT Systems in Agreement with nVent for High Density Rack-level Liquid Cooling

Calgary, Alberta – March 3, 2020 – CoolIT Systems Inc., a global leader in modular, scalable data center liquid cooling technology, has announced a strategic agreement with nVent Electric plc (NYSE:NVT) (“nVent”), a global leader…


From The Eponymous Pickle

Google Cardboard VR is Gone

Google Cardboard VR is Gone

I used to recommend these in classes.   Still have some around, somewhere ....  Too bad.  Downward trend in VR signaled?   

Google stops selling its Cardboard VR goggles after seven years

The affordable headset helped bring virtual…


From insideHPC

Intel Achieves AWS High Performance Computing Competency Status

Intel Achieves AWS High Performance Computing Competency Status

Intel has announced it has achieved Amazon Web Services (AWS) High Performance Computing (HPC) Competency status. This designation recognizes that Intel has demonstrated deep experience helping customers optimize their HPC workloads…


From The Eponymous Pickle

Publix Pandemic Sales Increase

Publix Pandemic Sales Increase

 Interesting numbers, starting with increased sales.   A kind of behavioral measure of interest.  Much more at the link.

Publix Super Markets: For the full fiscal 2020 year, Publix saw net earnings rise by $1 billion to $4 billion…


From insideHPC

Pure Storage and Equinix Collaborate to Deliver ‘Physical Infrastructure at Software Speed’

Pure Storage and Equinix Collaborate to Deliver ‘Physical Infrastructure at Software Speed’

MOUNTAIN VIEW, Calif. — March 3, 2021 — Today Pure Storage (NYSE: PSTG), which delivers storage as a service in a multi-cloud world, and Equinix, Inc. (Nasdaq: EQIX), the digital infrastructure company, announced Pure Storage…


From The Computing Community Consortium Blog

Great Innovative Idea – Smartmedia: Adapting Streamed Content to Fit Location and Context

Great Innovative Idea – Smartmedia: Adapting Streamed Content to Fit Location and Context

The following Great Innovative Idea is from Yaron Kanza (AT&T Labs-Research), David Gibbon (AT&T Labs-Research), Divesh Srivastava (AT&T Labs-Research), Valerie Yip (AT&T Labs-Research), and Eric Zavesky (AT&T Labs-Research).…


From The Eponymous Pickle

Retrain Your Model, Update the Data

Retrain Your Model, Update the Data

Such an obvious thing, but often forgotten. I make a point to include such updating instructions in everything I delivered.   No data, except from physics, is static.  Estimate, at least, the risk involved in not updating a model…


From insideHPC

Ungaro Departs: New Leadership Blood as HPE and Dell Drive for No. 1 in HPC

Ungaro Departs: New Leadership Blood as HPE and Dell Drive for No. 1 in HPC

HPE and Dell, engaged in a neck-and-neck struggle for superiority in HPC servers, also are engaged in a reshuffling of their HPC leadership teams that may reflect similar visions of HPC’s broadening adoption across IT. Last week…


From The Eponymous Pickle

A Security Problem with Common PLCs

A Security Problem with Common PLCs

We worked actively with PLCs, 'Programmable Logic Controllers' in the enterprise.    Small, dedicated computers used to control industrial process.  They reliably do both simple and complex tasks in the lab and plant.   I see…


From The Eponymous Pickle

Detecting Earthquakes and Waves

Detecting Earthquakes and Waves

A favorite topic, detecting pattern.  Its a big part of our intelligence.   Here using new kinds of sensor data. 

Google Uses Underwater Fiber-Optic Cable to Detect Earthquakes   By New Scientist

A submarine fiber-optic cable owned…