Edge Computing

あらゆるモノやコトがインターネットにつながるIoT(Internet of Things)時代が到来し、膨大なデータ量が流通することで、従来のクラウドコンピューティングでデータを集約・処理するだけではなく、利用者に近いエリアのエッジ側でデータを処理する「エッジコンピューティング」に注目が集まっている。では、エッジコンピューティングは我々にどのようなメリットをもたらすのだろうか。その背景を紐解いてみよう。

エッジコンピューティングとは何か?

 エッジコンピューティングとは、利用者のスマートフォンなどのインターネットにつながるIoT機器において情報を処理したり、利用者に近いエリアのネットワークにサーバを分散配置して処理を行ったりするコンピューティングモデルである。

 米調査会社のガートナーでは、エッジコンピューティングについて、「データの生成元、または、その近くでのデータ処理を容易にするソリューション」と定義している。

 クラウドコンピューティングが、サーバを集約して集中して処理する集中処理型に対して、エッジコンピューティングは、ネットワークにおける端末機器において情報を処理したり、ネットワークにサーバを分散配置して処理を行ったりする分散処理型となる。

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人工血液、動物実験に成功 1年以上の常温保存も可能

防衛医大などは大量出血した負傷者を救命する人工血液を開発した。ウサギの実験で成功した。人工血液を素早く輸血できれば、大けがによる死者を減らせるという。論文を米輸血学誌に発表した。

人工血液もうすぐ?費用課題も来年には人で安全性を試験

血液に含まれる傷口をふさぐ血小板と体細胞に酸素を運ぶ赤血球の二つが出血で失われると死に至る。保存期間は血小板が固まらないよう揺り動かして4日間、赤血球は低温で20日間ほどで、血液型ごとに大量に準備する必要がある。輸血には患者の血液型を調べる必要があり、救急救命士などは輸血できない。

チームが開発した血液は、人工の血小板と赤血球からなる。それぞれリポソームという細胞膜成分で作った微小な袋に、止血成分と酸素を運ぶ成分を詰めた。重篤な出血状態のウサギで試したところ、10羽中6羽が助かり、本物の血液を輸血した場合と同程度だったという。血液が固まるなどの副作用もなかった。

常温で1年以上保存でき、血液型を問わない。このため、実用化されれば、病院に着く前に事故現場で輸血でき、救命率が上がる。研究チームの木下学・防衛医大准教授は「離島など十分に血液を準備できない地域もある。人工血液でこれまで救えなかった命を救える」と話している。

Pokémon characters have their own pea-sized region in brain, study finds

Stanford study scanned brains of “Pokémon experts” and compared to a control group.

Detective Pikachu, the first live-action film inspired by the classic Nintendo game Pokémon, hits theaters on May 10. So it’s timely that a new paper has just appeared in Nature Human Behavior, concluding that people who avidly played the game as children have developed a unique cluster of brain cells devoted to recognizing the hundreds of different Pokémon species.

It’s well known that human beings are remarkably adept at visually recognizing faces, words, numbers, places, colors, and so forth thanks to a constellation of regions—small clusters of neurons about the size of a pea—in the temporal lobe, located just behind the ears. Those regions show up in the same place in most people, despite differences in age, sex, or race. There’s even a so-called “Jennifer Aniston neuron,” (aka the “grandmother cell”) discovered by a UCLA neuroscientist in 2005, whose primary purpose seems to be to recognize images of the famous actress. Similar neurons have also been found for other celebrities like Bill Clinton, Julia Roberts, Halle Berry, and Kobe Bryant…

React Nativeの実は使ってはダメなライブラリ素晴らしいライブラリ

ダメなライブラリ。
redux
reduxはstate管理の素晴らしいライブラリだ。
世界で一番愛用され、情報量も多く、大規模システムに向いている。
しかし、react nativeを採用するのはほとんどがスタートアップだ。
学習コストが高い+プロトタイプ制作が苦手なreduxはスタートアップにははっきり適さない。
reduxの代わりにunstated/context Apiを使おう。Expo+contextApi or unstated+web版のfirebaseがスタートアップでの最適解だと思う。

react-native-cli
cliでなくExpoを使おう。cliはライブラリのアップデートの際に莫大な手間がかかる。要するにnativeライブラリのメンテナンスに手間がかかりすぎるので、Expoをオススメする。(スタートアップでは特に)私はcliもexpoも現在実務で使っているが、体感expoのが2倍早く開発出来る。androidやios経験がない人は、expoを選択 …

「脳波タイピング競争」で新記録、スマホの手入力を上回る

8月24日に行われた「2019世界ロボット大会(World Robot Conference)」の「脳波タイピング競争」で、天津大学(Tianjin University)の大学院生、魏斯文(Wei Siwen)さんが1分あたり691.55バイトの情報伝達速度で新記録を達成、チャンピオンとなった。普通の人がスマートフォン画面で指で文字入力する速度は1分あたり600バイトで、これを上回った。

 参加者は頭にセンサーを満載した「特殊設備」をかぶり、全身を集中させコンピューター画面の前に座った。体を全く動かすことなく、心の中で文字を念ずるだけで、画面上に文字を映し出す――これがうわさの「念力タイピング」だ …

AWS celebrates Labor Day weekend by roasting customer data in US-East-1 BBQ

Postmortem report: Power outage knackered instances, volumes for unlucky punters.

A power outage fried hardware within one of Amazon Web Services’ data centers during America’s Labor Day weekend, causing some customer data to be lost.

When the power went out, and backup generators subsequently failed, some virtual server instances evaporated – and some cloud-hosted volumes were destroyed and had to be restored from backups, where possible, we’re told.

A Register reader today tipped us off that on Saturday morning, Amazon’s cloud biz started suffering a breakdown within its US-East-1 region.

Our tipster told us they had more than 1TB of data in Amazon’s cloud-hosted Elastic Block Store (EBS), which disappeared during the outage: they were told “the underlying hardware related to your EBS volume has failed, and the data associated with the volume is unrecoverable.” …

Feds ordered Google location dragnet to solve Wisconsin bank robbery

Another reverse location search warrant

On October 13th, 2018, two men walked into a Great Midwest Bank in a suburban strip mall outside Milwaukee. They were the first two customers when the bank opened, barely recognizable behind sunglasses and heavy beards — but it soon became clear what they were after. One man jumped onto the teller counter and pulled out a handgun, throwing down a garbage bag for the tellers to fill with money. They left the bank at 9:09AM, just seven minutes after they entered, carrying the bag full of cash, three drawers from the vault and teller station, and the keys to the bank vault itself.

In the months since, police and federal agents have struggled to track down the bank robbers. Local media sent out pictures from the bank’s security cameras, but it produced no leads. Finally, police hit on a more aggressive strategy: ask Google to track down the bank robbers’ phones …

Speed-doubling USB4 is ready. Now we just have to wait for devices

If you’ve seen the newer USB-C ports on laptops and peripherals, you know what to expect in 2020.

The MacBook Pro has combination USB-C and Thunderbolt ports. USB4 marries the two technologies.

USB4 is done, the group developing the next version of the immensely successful USB connector technology said Tuesday. USB4 doubles speeds compared to today’s fastest USB 3.2 by incorporating Intel’s speedy Thunderbolt technology that you already see on high-end laptops and peripherals. The USB Implementers Forum announced the completion of the technical specification Tuesday, a move that frees hardware and software engineers to get cracking building the actual products to support it.

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New York’s MTA might warn riders not to remove AirPods on the subway because it’s tired of picking them up

  • New York’s MTA is considering a public service announcement that would ask passengers not to remove Apple AirPods while getting on or off the subway.
  • The MTA has seen an increase in AirPod rescues after people drop them on the tracks.
  • Rescues can be dangerous and lead to train delays.

New York’s MTA is considering a public service announcement that would ask subway riders not to remove Apple AirPods while getting on or off the subway, according to The Wall Street Journal.

In the report, The Wall Street Journal quoted MTA maintenance supervisor Steven Dluginski, who said the MTA uses a “picker-upper thing” to rescue lost AirPods. But, given the summer heat and increased sweat, Dluginski said he has found an uptick in the number of AirPods that have fallen on the tracks…

Open Source Developer Gain New Collaboration Opportunities on Open Hardware

Live from Open Source Summit this week, we’re thrilled to share that the OpenPOWER Foundation is becoming a project hosted at The Linux Foundation. This includes a technical contribution of the POWER Instruction Set Architecture (ISA) and Source Design Implementations, including a softcore implementation of the POWER ISA.

The OpenPOWER Foundation recognizes how increased collaboration across the open source ecosystem will advance open hardware technology and accelerate opportunity.

Six years ago, IBM setup the OpenPOWER Foundation to widen the reach of their POWER technology. The goal from the start was to support Instruction Set Architecture and contributed Source Design Implementations required for data-driven HPC workloads like modelling and simulation, cloud services and also Artificial Intelligence (AI).

Today, with 350+ members, OpenPOWER focuses on both hardware and software technologies, providing industry specifications across the open ecosystem, helping members collaborate, as well as providing training and promotion of a POWER architecture. Under The Linux Foundation OpenPOWER’s efforts will increase the breadth and depth of data-driven architectures for developers across the industry and globe and execute on a standard open governance model.

So what exactly will this mean for the developers and engineers working within the stacks? With an open infrastructure from the hardware components to firmware to the operating system and the solutions running on top, developers can now access reviews and improvements to any element in the stack, at any time. Being able to engage globally with developers, engineers and decision makers will fundamentally shape the future of open hardware technologies and help enterprises see faster applications and cheaper cloud services.

This news is a huge deal. What’s so exciting is that it impacts the entire stack and it mirrors The Linux Foundation’s original mission – to bring open hardware, open standards and open code to developers. With this will come so much innovation from the top all the way down the stack and we’re excited to see how this will revolutionize experiences for customers in hybrid cloud architectures and AI environments.

Check out more details on the news from today’s keynote and our official release here: https://www.linuxfoundation.org/press-release/2019/08/the-linux-foundation-announces-new-open-hardware-technologies-and-collaboration/