IT |
ビジネス+IT 最新ニュース |
【DX調査】予算・人員確保が難しい?日本企業の担当者600人に聞く「DXが進まない理由」 |
https://www.sbbit.jp/article/cont1/93237?ref=rss
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2022-09-05 06:10:00 |
python |
Pythonタグが付けられた新着投稿 - Qiita |
Python nlplot で共起ネットワーク表示 |
https://qiita.com/FukuharaYohei/items/767d27d1aae550399be9
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nlplot |
2022-09-05 06:41:11 |
Docker |
dockerタグが付けられた新着投稿 - Qiita |
code-serverを使ってWindows上で簡易なLinux上の開発環境を得る方法 |
https://qiita.com/tmasuda/items/e8c9813a666901adcb2a
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wslwindo |
2022-09-05 06:29:38 |
海外TECH |
DEV Community |
Blockchain Technology: The types and use cases |
https://dev.to/ameenat/blockchain-technology-the-types-and-use-cases-1dh1
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Blockchain Technology The types and use cases IntroductionA blockchain is a decentralized distributed and public digital ledger that is used to record transactions across many computers so that the record cannot be altered retroactively without the alteration of all subsequent blocks and the consensus of the network In simple terms a blockchain is a system of recording information in a way that makes it difficult or impossible to change hack or cheat the system A blockchain is essentially a digital ledger of transactions that is duplicated and distributed across the entire network of computer systems on the blockchain Blockchain Technology s Key FeaturesInstead of a single authority the blockchain relies on a decentralized network of users to validate and record transactions Because of this feature blockchain transactions are consistent fast safe affordable and tamper proof because of this feature These characteristics are explained below FAST No intermediaries are required because transactions are transferred directly from the sender to the recipient middlemen CONSISTENT Blockchain networks are active around the world seven days a week hours a day INEXPENSIVE Blockchain networks run more cheaply because there are no centralized profit driven middlemen SECURE The distributed network of nodes in a blockchain provides collective defense against assaults and outages TAMPER PROOF Since data is transparent and immutable after it has been time stamped to the ledger fraud and other illegal activity cannot be committed via the blockchain Similarly everyone who has access to a public blockchain network can view the transactions that have been generated Types of BlockchainPublic Blockchain Private or Permitted Blockchain Hybrid Blockchain Consortium or Federated Blockchain Public BlockchainThe public blockchain is the first type of blockchain technology This is where Distributed Ledger Technology DLT first emerged giving rise to cryptocurrencies like Bitcoin It eliminates the drawbacks of centralization such as decreased security and transparency DLT distributes information throughout a peer to peer network rather than storing it centrally Due to its decentralized nature some form of authenticating data must be used By using a consensus mechanism users on the blockchain can agree on the ledger s present state Two popular consensus techniques are proof of work for Bitcoin and proof of stake for Ethereum Polygon Anyone with internet connectivity can join on to a blockchain platform and become an authorized node making public blockchain non restrictive and permissionless This person has access to both recent and old data and they can perform mining operationsーcomplex calculations necessary to confirm transactions and add them to the ledger On the network no legitimate record or transaction can be altered and because the source code is typically open source anybody may check the transactions look for errors and suggest fixes ADVANTAGES Public blockchains have the benefit of being fully independent of organizations as long as there are computers still connecting to them the public blockchain will continue to function even if the company that launched it goes out of business Public blockchains also offer the benefit of a transparent network Public blockchains are generally secure as long as their users adhere strictly to security regulations and procedures Another factor contributing to the public blockchain s widespread user base is its anonymity Yes it is a secure and open platform where you may operate your business effectively and legally You are not required to provide your real name or identity in order to take part If your identity is protected no one can monitor your network activity DISADVANTAGES However there is insufficient security little to no transaction privacy and significant processing power is needed These are significant factors for blockchain use cases across different businesses Public blockchains also struggle with scalability As more nodes join the network it becomes slower USE CASES The mining and exchange of cryptocurrencies like Bitcoin is the most typical use case for public blockchains It can also be used to electronically notarize affidavits and public documents of property ownership in order to create a fixed record with an auditable chain of custody For organizations that are based on openness and trust like social support networks or non governmental organizations this kind of blockchain is appropriate Private enterprises will probably wish to stay away due to the network s open nature Private BlockchainA private blockchain is a blockchain network that operates in a constrained setting such as a closed network or one that is governed by a single institution Although it functions similarly to a public blockchain network in terms of peer to peer connectivity and decentralization this particular blockchain is substantially narrower in scope Private blockchains are often run on a small network inside a firm or organization rather than allowing anybody to join and contribute processing power They are also referred to as managed or permissioned blockchains In a private blockchain a node s eligibility is decided by the central authority Additionally the central authority does not necessarily give every node the same permissions to carry out tasks Private blockchains are only partially decentralized though because they are not accessible to the general public Private blockchains include for instance the business to business virtual currency exchange network Ripple XRP and the open source blockchain application framework Hyperledger ADVANTAGES Permission levels security authorizations and accessibility are controlled by the controlling organization For instance the establishment of a private blockchain network allows an organization to control which nodes can see add or modify data Additionally it can restrict access to some information by outside parties You can think of private blockchains as being the intranet while the public blockchains are more like the internet Godefroy James TechTarget Private blockchains can process transactions significantly more quickly than public blockchains because of their size restriction DISADVANTAGES Private blockchains have drawbacks including the contentious assertion that they aren t actual blockchains because decentralization is the foundation of the technology Since centralized nodes decide what is valid it is also more challenging to fully create trust in the information Less security may also result from the small node count The consensus process may be jeopardized if a few nodes act erratically Furthermore the source code from private blockchains is frequently closed source and proprietary It cannot be independently audited or verified by users which may result in inferior security On a private blockchain there is no anonymity either USE CASES Private blockchains are the best option when a blockchain needs to be cryptographically secure but the governing entity doesn t want the data to be accessible to the general public due to their speed The administration of the supply chain asset ownership and internal voting are further use cases for private blockchain Hybrid BlockchainOrganizations occasionally employ hybrid blockchain a form of blockchain technology that includes components of both private and public blockchain to get the best of both worlds It enables businesses to set up both a private permission based system and a public permissionless system giving them control over which data is made available to the public and who has access to it In a hybrid blockchain transactions and records are typically private but can be validated as necessary for example by granting access via a smart contract Although protected inside the network confidential information can still be verified The hybrid blockchain may be owned by a private organization but it cannot change transactions An individual who joins a hybrid blockchain has complete access to the network Unless they conduct a transaction other users cannot learn the identity of the user The opposite person is then made aware of their identity ADVANTAGES Because hybrid blockchain operates in a closed ecosystem one of its major benefits is that hackers cannot conduct a attack on the network Additionally it safeguards privacy while allowing for third party communication Compared to a public blockchain network it has higher scalability and delivers quick and inexpensive transactions DISADVANTAGES This kind of blockchain can have information hidden so it s not entirely transparent There is no incentive for users to take part in or contribute to the network and upgrading can be difficult USE CASES Real estate is one of the many compelling use cases for hybrid blockchain technology A hybrid blockchain can be used by businesses to run systems securely while displaying some information like listings to the general public Hybrid blockchain can be used to streamline procedures in the retail sector as well as in highly regulated industries like the banking sector A hybrid blockchain can be used to store medical records Users can access their information using a smart contract but arbitrary third parties cannot see the data Governments might also utilize it to securely communicate and keep citizen data among various entities Consortium BlockchainContrary to private blockchains which are permissioned blockchains managed by a single institution consortium blockchains often referred to as federated blockchains are permissioned blockchains that are managed by a group of organizations Due to having greater decentralization than private blockchains consortium blockchains have higher levels of security Given that it has both private and public blockchain elements it is comparable to a hybrid blockchain However it differs in that a decentralized network is used in collaboration by numerous organizational members A consortium blockchain essentially functions as a private blockchain with restricted access to a certain group removing the hazards associated with having just one entity control the network on a private blockchain The consensus processes in a consortium blockchain are managed by predetermined nodes It has a validator node that performs transaction initiation receipt and validation Member nodes have the ability to send or receive transactions ADVANTAGES Compared to a public blockchain network a consortium blockchain is typically more reliable scalable and effective It enables access controls just as private and hybrid blockchain The consortium blockchain offers a high level of privacy due to the fact that the data from the verified blocks is shielded from the general public view But anyone with access to this blockchain can use it The consortium blockchain does not charge transaction fees in contrast to a public blockchain DISADVANTAGES Compared to public blockchain consortium blockchain is less transparent The network s functionality may still be hampered by the blockchain s own rules if a member node is attacked Creating consortiums can be challenging since it calls for cooperation between several businesses which raises logistical concerns and increases the possibility of antitrust violations Additionally certain supply chain participants might not have the infrastructure or technology required to use blockchain technologies Those who do might feel it s not worth it given the hefty upfront expenses of digitizing their data and connecting to other supply chain participants USE CASES There are two applications for this kind of blockchain banking and payments A consortium made up of various banks can decide which nodes will validate the transactions Organizations who want to track food as well as research organizations can develop a similar methodology It s perfect for supply chains especially those involving food and medicine ConclusionThese are my breakdown of all the types of blockchain known at the moment which I know and shared with you so that you can use that knowledge wherever it may apply So which question do you have for me Let me know in comment section Moreover If anything else that I may have missed out on please share it in comment as well Let s ConnectTwitterLinkedin ReferencesA beginner s guide to the different types of Blockchain networks Culled from Blockchain for business The ultimate enterprise guide |
2022-09-04 21:26:45 |
Apple |
AppleInsider - Frontpage News |
What to expect from Apple's iPhone 14 event on September 7 |
https://appleinsider.com/articles/22/08/13/what-to-expect-from-apples-september-iphone-14-event?utm_medium=rss
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What to expect from Apple x s iPhone event on September Apple s Far Out event is on September Beyond the new iPhone here s what to expect from September s Apple event ーand beyond Regular as clockwork Apple takes time in the fall to launch a swathe of new products intended for consumers to buy during the following holiday shopping period As a very lucrative time of year for the company Apple puts a lot of effort into its fall events showing off as many new items as possible While primarily centered on its iPhone product line Apple does take time to look at other complementary products and services Read more |
2022-09-04 21:06:04 |
海外TECH |
Engadget |
Cloudflare blocks trans harassment forum Kiwi Farms following escalation of 'targeted threats' |
https://www.engadget.com/cloudflare-blocks-kiwi-farms-forum-212629893.html?src=rss
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Cloudflare blocks trans harassment forum Kiwi Farms following escalation of x targeted threats x DNS and internet security provider Cloudflare has blocked Kiwi Farms an infamous forum known for its online and real world harassment campaigns CEO Matthew Prince announced the company s decision on Saturday after it initially resisted calls to stop protecting the website “As Kiwi Farms has felt more threatened they have reacted by being more threatening Prince told The Washington Post “We think there is an imminent danger and the pace at which law enforcement is able to respond to those threats we don t think is fast enough to keep up On the company s blog Prince said that Cloudflare saw an increase in targeted threats “unlike we have previously seen from Kiwi Farms or any other customer before Kiwi Farms was founded in by former chan administrator Joshua Moon In the decade since it went online at least three suicides have been linked to harassment campaigns that originated on the forum In recent weeks Kiwi Farms has gained widespread notoriety across both sides of the US political spectrum After she was the target of multiple swatting attacks that originated on the website trans Twitch streamer Clara Sorrenti began a campaign to shut down Kiwi Farms She used the hashtag DropKiwifarms to urge Cloudflare and other critical internet infrastructure providers to stop serving the website “There are countless people suffering because of this website Sorrenti told The Post on Saturday moments after police arrived at her home in the wake of another swatting attempt “Kiwi Farms isn t about free speech it s about hate speech The majority of the content on the site is threads used for targeted harassment against political targets Separately Representative Marjorie Taylor Greene of Georgia called for the forum s shutdown after a user claiming affiliation with Kiwi Farms sent police to her home “That website needs to be taken down Greene told Newsmax during an interview “There should be no business or any kind of service where you can target your enemy quot Earlier in the week it appeared Cloudflare would not take action against Kiwi Farms The company published a blog post on Wednesday detailing its policies on abusive content Without directly mentioning the forum Prince and another executive argued that withholding security services from websites the company and public find reprehensible would ultimately harm oppressed and marginalized voices On Saturday Prince described Cloudflare s decision to block Kiwi Farms as a “dangerous one that we are not comfortable with He told The Post he would have preferred to take action in response to a court order but added it was an easier call than when Cloudflare decided to drop the Daily Stormer and chan As of the writing of this story Kiwi Farms is still online after moving to DDoS guard and a Russian domain |
2022-09-04 21:26:29 |
ニュース |
BBC News - Home |
Mystery as private plane crashes into Baltic Sea |
https://www.bbc.co.uk/news/world-europe-62789877?at_medium=RSS&at_campaign=KARANGA
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erratic |
2022-09-04 21:48:35 |
ニュース |
BBC News - Home |
Tallaght, Dublin: Three siblings killed in 'violent incident' |
https://www.bbc.co.uk/news/world-europe-62785466?at_medium=RSS&at_campaign=KARANGA
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cawley |
2022-09-04 21:30:56 |
ビジネス |
電通報 | 広告業界動向とマーケティングのコラム・ニュース |
いま、必要なのは「同質」ではなく「異質」 |
https://dentsu-ho.com/articles/8310
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一橋大学 |
2022-09-05 06:18:15 |
北海道 |
北海道新聞 |
畑岡7位、連覇ならず 米女子ゴルフ、古江は29位 |
https://www.hokkaido-np.co.jp/article/726298/
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女子ゴルフ |
2022-09-05 06:23:00 |
北海道 |
北海道新聞 |
広告会社が2600万円提供 組織委元理事の知人会社へ |
https://www.hokkaido-np.co.jp/article/726296/
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大会組織委員会 |
2022-09-05 06:12:56 |
北海道 |
北海道新聞 |
土石流遺族、きょう県市を提訴 110人、計64億円求める |
https://www.hokkaido-np.co.jp/article/726295/
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静岡県熱海市 |
2022-09-05 06:02:00 |
ビジネス |
東洋経済オンライン |
ロシア・ウクライナ戦争が世界に刻みつけた教訓 過去の常識が通用しなくなり秩序の再構築が必要 | 地経学の時代-地政学と経済の融合 | 東洋経済オンライン |
https://toyokeizai.net/articles/-/615773?utm_source=rss&utm_medium=http&utm_campaign=link_back
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国際社会 |
2022-09-05 07:00:00 |
ビジネス |
東洋経済オンライン |
「上司のダブルバインド」に試したい3つの防衛策 「何でも質問して」→「それくらい自分で考えて」 | 自衛隊員も学ぶ!メンタルチューニング | 東洋経済オンライン |
https://toyokeizai.net/articles/-/614627?utm_source=rss&utm_medium=http&utm_campaign=link_back
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人間関係 |
2022-09-05 06:30:00 |
ニュース |
THE BRIDGE |
SparkLabs TaipeiがSparkLabs Taiwanに改称、アクセラレータ第7期のデモデイに7社が登壇 |
https://thebridge.jp/2022/09/sparklabs-taiwan-7th-batch-demoday
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SparkLabsTaipeiがSparkLabsTaiwanに改称、アクセラレータ第期のデモデイに社が登壇SparkLabsTaipeiは第期のデモデイを開催した。 |
2022-09-04 21:15:13 |
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