投稿時間:2023-08-19 03:12:23 RSSフィード2023-08-19 03:00 分まとめ(13件)

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AWS	AWS	EPAM Empowers Career Growth of Ukrainians in Challenging Times with ITSkills4U Program	https://www.youtube.com/watch?v=iwY7SjvXnzg	EPAM Empowers Career Growth of Ukrainians in Challenging Times with ITSkillsU ProgramEPAM collaborates with AWS to enhance the career growth opportunities of Ukrainians through the ITSkillsU program offering training to individuals residing in conflict zones and those affected by the war seeking refuge Learn more at Subscribe More AWS videos More AWS events videos Do you have technical AWS questions Ask the community of experts on AWS re Post ABOUT AWSAmazon Web Services AWS is the world s most comprehensive and broadly adopted cloud platform offering over fully featured services from data centers globally Millions of customers ーincluding the fastest growing startups largest enterprises and leading government agencies ーare using AWS to lower costs become more agile and innovate faster AWStraining AWScertification EPAM AWS AmazonWebServices CloudComputing	2023-08-18 17:29:32
python	Pythonタグが付けられた新着投稿 - Qiita	Pythonのハッシュ衝突攻撃の考察3: setの理解と効率的な衝突の実践(anti-setの実践)	https://qiita.com/recuraki/items/086e36ad124598627c41	antiset	2023-08-19 02:25:14
AWS	AWSタグが付けられた新着投稿 - Qiita	AWS CloudFormation: 05. S3 + CloudFront + Cognito + Lambda@Edge による認証機能付き静的ウェブサイトのホスティング	https://qiita.com/iwatake2222/items/998d77951b7044e9bbbf	awscloudformation	2023-08-19 02:16:30
海外TECH	MakeUseOf	7 Ways to Fix "RAM Not Detected" Errors	https://www.makeuseof.com/ways-to-fix-ram-not-detected-errors/	detected	2023-08-18 17:15:27
海外TECH	MakeUseOf	Your Nintendo Switch Won't Connect to the Internet? Here's What to Do	https://www.makeuseof.com/tag/nintendo-switch-unable-connect-internet/	games	2023-08-18 17:01:24
海外TECH	MakeUseOf	The Best Free Windows 10 Repair Tools to Fix Any Problem	https://www.makeuseof.com/tag/5-free-tools-fix-problem-windows-10/	problemif	2023-08-18 17:01:24
海外TECH	DEV Community	Moonly weekly progress update #61 - Automatio FAQ/2	https://dev.to/moonly/moonly-weekly-progress-update-61-automatio-faq2-ibl	Moonly weekly progress update Automatio FAQ Moonly weekly progress update ーAutomatio FAQ Where is the extracted data stored The extracted data can be viewed within the Automatio dashboard and is stored on a dedicated cloud server It is available in various file formats such as CSV JSON RSS and API allowing for immediate access and use Can Automatio automate repetitive tasks Yes Automatio features a “looping system that allows actions to automatically repeat within the parameters defined by the user This feature simplifies and automates repetitive tasks How are the actions performed within Automatio priced Each action performed with the Automatio bot requires credits with some actions consuming more credits than others Packages containing different credit amounts can be purchased on a monthly or yearly basis Credits can also be directly purchased from the Automatio website Weekly devs progress Debug logging on to KDOS WL on mobilesFixed transactions that are not getting finalizedTesting the KDOS WL applicationFixed RPC Proxy IssueFixed issues with the “add and “delete announcement setting resolversHolder Verification Bot HVB Moved the discord bot inside the backend due to dependency issuesImproved multi selection by displaying selected valuesResolved upsert verification setting issueFixed get channel ascending issueResolved collection selection issueIncluded a default value for setting the channelFixed role generation sorting issueIncluded a fetch function if the bot can t find the guild from the cacheModified the backend initialization flowIncluded bulk job adding for wallet checkerDeployed the moonly bot v to test the serverHVB service tested and fixed some bugsResolved wallet checker issue for new changesAn integrated remote logger for the Moonly botFixed the “generate rule state issueResolved member update event issueDrew a workflow of HVB vRaffle Feature and Twitter Space Giveaway Fix Nextjs caching issue on Raffle creationLogic and Resolver to confirm the Raffle CreationThe auto reload page is done when Raffle is overFixed program error parsing on the backendShow NFT tokens on the prize sectionTested Sending error when all slots are boughtFixed showing the claim button when not logged in with a walletOptimized showing the NFT on the admin sectionFixed Sol ticket fee showingAdded resolver for getting the history of giveaways for the history checkerWorking on the Front end of the history checkerStaking as a Service Fixed Showing the delegate button on the Staking pageCreated structure for Staking VWorking on Staking Creation Page and Blockchain EndpointCreated prisma schema for Staking VCreated Form for the Staking V and the frontend UICheck out our latest blog post Upcoming NFT collections Minted projects worth mentioning	2023-08-18 17:47:16
海外TECH	DEV Community	Exploring Component Lifecycle Methods in React	https://dev.to/the2minengineer/exploring-component-lifecycle-methods-in-react-13p9	Exploring Component Lifecycle Methods in ReactIn React Development React components operate in distinct phases guided by unique functions known as Component Lifecycle Methods Introduction to Component Lifecycle MethodsWhat are Component Lifecycle Methods  Component Lifecycle Methods are special functions that enable you to engage with a component s different stages within a React app They serve as precise moments to execute code orchestrating interactions between your app and its user Why are Component Lifecycle Methods Important  Component Lifecycle Methods are crucial because they grant you control over your app s behavior By strategically placing code in these methods you can manage tasks like data fetching state synchronization animations and more precisely when needed Using Component Lifecycle Methods EffectivelyKnow the Phases Familiarize yourself with the phases ー initialization updates and unmounting This forms the foundation for using the methods effectively Choose the Right Method Each phase has specific methods Select the one that aligns with your task For instance employ componentDidMount for initial data loading and componentDidUpdate for updates Avoid Overuse Tempting as it may be refrain from using every available method Overcomplicating with excessive methods can lead to convoluted and hard to maintain code Keep it streamlined and utilize only what your app requires Mind Dependencies When employing methods consider dependencies that impact your component Handle changes in props and state appropriately to prevent unintended consequences Explore Alternatives As React evolves Hooks present an alternative to lifecycle methods Keep an eye on these modern approaches to determine if they provide cleaner solutions for your tasks Understanding Component Lifecycle PhasesReact components go through distinct phases each serving a purpose and accompanied by corresponding methods Let s explore these phases and how to effectively utilize them Initialization PhaseThis marks a component s birth where properties are set and initial state is established Key methods include constructor Sets up initial state binds event handlers and performs setup before rendering Initialization Phase Using constructor for State Initializationclass MyComponent extends React Component constructor props super props Ensures proper inheritance this state count Sets initial state Bind event handlers here Static getDerivedStateFromProps Updates internal state based on new props before rendering though it s advised to use sparingly Initialization Phase Leveraging static getDerivedStateFromProps for Derived Stateclass MyComponent extends React Component static getDerivedStateFromProps nextProps prevState Calculate and return updated state based on nextProps return updatedState nextProps someValue render Generates JSX representing the UI creating a virtual UI without direct DOM manipulation Initialization Phase Rendering UI with render class MyComponent extends React Component render return lt div gt this state count lt div gt Returns JSX representing the UI componentDidMount Executes after initial rendering suitable for side effects like data fetching and timer setup Initialization Phase Fetching Data and Side Effects with componentDidMount class DataFetchingComponent extends React Component componentDidMount fetch Data fetching from an API then response gt response json then data gt this setState data Updates state with fetched data Update PhaseTriggered by changes in state or props this phase determines if a re render is necessary Essential methods include Static getDerivedStateFromProps Update Updates state based on new props but exercise caution to avoid code complexity shouldComponentUpdate Controls re rendering by comparing current and next props or state optimizing performance Update Phase Managing Component Updates with shouldComponentUpdate class MyComponent extends React Component shouldComponentUpdate nextProps nextState Compare props or state and return true or false to control re rendering render Determines updated JSX during each update getSnapshotBeforeUpdate Captures pre update DOM information for use in componentDidUpdate Update Phase Handling Snapshot Data with getSnapshotBeforeUpdate class ScrollingComponent extends React Component getSnapshotBeforeUpdate prevProps prevState Capture scroll position return window scrollY componentDidUpdate prevProps prevState snapshot Use snapshot to restore scroll position if snapshot null window scrollTo snapshot componentDidUpdate Executes tasks after an update such as fetching data based on new state or interacting with libraries Update Phase Performing Actions After Update with componentDidUpdate class MyComponent extends React Component componentDidUpdate prevProps prevState if this state someValue prevState someValue Perform actions after the component updates Unmount PhaseWhen a component exits this phase comes into play The essential method is componentWillUnmount Cleans up resources cancels network requests and removes event listeners to prevent memory leaks Unmount Phase Cleaning Up Resources with componentWillUnmount class ResourceManagingComponent extends React Component componentWillUnmount Clean up resources unsubscribe remove listeners etc Implementing Component Lifecycle MethodsLet s put these concepts into practice with real world examples Initialization PhaseUsing constructor for State Initialization Set up initial state and bind event handlers Leveraging static getDerivedStateFromProps for Derived State Update state based on props changes Rendering UI with render Generate JSX for the UI creating a virtual UI Fetching Data and Side Effects with componentDidMount Perform data fetching and side effects after initial render Update PhaseManaging Component Updates with shouldComponentUpdate Control re rendering based on prop or state changes Handling Snapshot Data with getSnapshotBeforeUpdate Capture and use pre update DOM information Performing Actions After Update with componentDidUpdate Execute post update tasks Unmount PhaseCleaning Up Resources with componentWillUnmount Tidy up resources and prevent memory leaks before component removal Best Practices for Using Component Lifecycle MethodsChoosing Between Class Components and Functional Components When deciding between class components and functional components consider this guideline Functional Components Opt for functional components in most cases Utilize Hooks like useState useEffect and useContext for streamlined state management side effects and context handling Class Components Reserve class components for specific instances Use them when working with third party libraries requiring lifecycle methods or in projects undergoing gradual transition to Hooks Avoiding Common Mistakes and Anti patterns To maintain clean and robust code avoid these common pitfalls Proper Use of setState Recognize setState s asynchronous nature Prefer the updater function form when dependent on previous state to prevent issues Managing Side Effects For side effects such as data fetching opt for useEffect in functional components Stick to componentDidMount for initialization and componentWillUnmount for cleanup in class components Minimal Use of Lifecycle Methods with Hooks Embrace Hooks as they offer a unified approach to state and side effect management Transition away from class component lifecycle methods when Hooks provide more elegant solutions Migrating from Class Components to Hooks Transitioning from class to functional components using Hooks Follow these steps Identify the purpose of each lifecycle method in class components Find equivalent Hooks that serve similar purposes Refactor your code to harness the capabilities of Hooks For example componentDidMount can often be replaced with useEffect gt and shouldComponentUpdate can be simulated using React memo Higher Order Component Advanced Lifecycle ManagementDelve deeper into component lifecycle management with advanced techniques that enhance performance reliability and overall application quality Error Boundaries and componentDidCatch Managing errors is integral to software development React s Error Boundaries offer a safety net preventing app crashes The key is the componentDidCatch method Error Boundaries Encapsulate app sections with an Error Boundary to capture errors within that subtree Craft an Error Boundary as a class component with componentDidCatch error errorInfo class ErrorBoundary extends React Component componentDidCatch error errorInfo Handle the error e g log display fallback UI render return this props children Wrap error prone components with your Error Boundary lt ErrorBoundary gt lt ComponentThatMightThrowErrors gt lt ErrorBoundary gt Profiling Components with React DevTools Uncover debugging treasures with React DevTools The Profiler tool scrutinizes component performance pinpointing bottlenecks and refining rendering Profile app segments using the Profiler component import Profiler from react function App return lt Profiler id MyApp onRender id phase actualDuration gt Log or analyze performance data gt Your app components lt Profiler gt Combining Lifecycle Methods with Redux and Context Integrate lifecycle methods seamlessly with state management tools like Redux and Context Leverage componentDidMount to fetch and dispatch data to a Redux store class DataFetchingComponent extends React Component componentDidMount fetchData then data gt this props dispatch type SET DATA payload data export default connect DataFetchingComponent Similarly componentWillUnmount handles Redux subscriptions and teardown tasks Exploring Modern Alternatives useEffect HookThis versatile Hook reshapes how we manage side effects and mimic traditional lifecycle methods The useEffect Hook is a fundamental tool in the Hooks toolbox It orchestrates side effects in functional components replacing the need for lifecycle methods It s adaptable handling data fetching subscriptions and more import useEffect from react function MyComponent useEffect gt Perform side effects here return gt Clean up resources here Dependency array Case Studies and Real World ExamplesBuilding a Dynamic Data Fetching ComponentCreating an Animated Countdown TimerImplementing a Modal Popup with Lifecycle MethodsEnhancing User Experience with Real time UpdatesI believe you ve been able to understand what component lifecycles are how to use them and when to use them  Keep Breaking Code Barriers	2023-08-18 17:40:03
海外TECH	DEV Community	Benefits of hybrid search	https://dev.to/neuml/benefits-of-hybrid-search-4fma	Benefits of hybrid searchSemantic search is a new category of search built on recent advances in Natural Language Processing NLP Traditional search systems use keywords to find data Semantic search has an understanding of natural language and identifies results that have the same meaning not necessarily the same keywords While semantic search adds amazing capabilities sparse keyword indexes can still add value There may be cases where finding an exact match is important or we just want a fast index to quickly do an initial scan of a dataset Both methods have their merits What if we combine them together to build a unified hybrid search capability Can we get the best of both worlds This article will explore the benefits of hybrid search Install dependenciesInstall txtai and all dependencies Install txtaipip install txtai pytrec eval rank bm elasticsearch Introducing semantic keyword and hybrid searchBefore diving into the benchmarks let s briefly discuss how semantic and keyword search works Semantic search uses large language models to vectorize inputs into arrays of numbers Similar concepts will have similar values The vectors are typically stored in a vector database which is a system that specializes in storing these numerical arrays and finding matches Vector search transforms an input query into a vector and then runs a search to find the best conceptual results Keyword search tokenizes text into lists of tokens per document These tokens are aggregated into token frequencies per document and stored in term frequency sparse arrays At search time the query is tokenized and the tokens of the query are compared to the tokens in the dataset This is more a literal process Keyword search is like string matching it has no conceptual understanding it matches on characters and bytes Hybrid search combines the scores from semantic and keyword indexes Given that semantic search scores are typically and keyword search scores are unbounded a method is needed to combine the results The two methods supported in txtai are Convex Combination when sparse scores are normalizedReciprocal Rank Fusion RRF when sparse scores aren t normalizedThe default method in txtai is convex combination and we ll use that Evaluating performanceNow it s time to benchmark the results For these tests we ll use the BEIR dataset We ll also use a benchmarks script from the txtai project This benchmarks script has methods to work with the BEIR dataset We ll select a subset of the BEIR sources for brevity For each source we ll benchmark a bm index an embeddings index and a hybrid or combined index import os Get benchmarks scriptos system wget Create output directoryos makedirs beir exist ok True Download subset of BEIR datasetsdatasets nfcorpus fiqa arguana scidocs scifact for dataset in datasets url f dataset zip os system f wget url os system f mv dataset zip beir os system f unzip d beir beir dataset zip Remove existing benchmark dataif os path exists benchmarks json os remove benchmarks json Now let s run the benchmarks Remove existing benchmark dataif os path exists benchmarks json os remove benchmarks json Runs benchmark evaluationdef evaluate method for dataset in datasets command f python benchmarks py beir dataset method print command os system command Calculate benchmarksfor method in bm embed hybrid evaluate method import jsonimport pandas as pddef benchmarks Read JSON lines data with open benchmarks json as f data f read df pd read json data lines True sort values by source ndcg cut ascending True False return df source method ndcg cut map cut recall P index search memory reset index drop True Load benchmarks dataframedf benchmarks df df source nfcorpus reset index drop True sourcemethodndcg cut map cut recall P indexsearchmemorynfcorpushybridnfcorpusembednfcorpusbmdf df source fiqa reset index drop True sourcemethodndcg cut map cut recall P indexsearchmemoryfiqahybridfiqaembedfiqabmdf df source arguana reset index drop True sourcemethodndcg cut map cut recall P indexsearchmemoryarguanahybridarguanaembedarguanabmdf df source scidocs reset index drop True sourcemethodndcg cut map cut recall P indexsearchmemoryscidocsembedscidocshybridscidocsbmdf df source scifact reset index drop True sourcemethodndcg cut map cut recall P indexsearchmemoryscifacthybridscifactbmscifactembedThe sections above show the metrics per source and method The table headers list the source dataset index method NDCG MAP RECALL P accuracy metrics index time s search time s and memory usage MB The tables are sorted by NDCG descending Looking at the results we can see that hybrid search often performs better than embeddings or bm individually In some cases as with scidocs the combination performs worse But in the aggregate the scores are better This holds true for the entire BEIR dataset For some sources bm does best some embeddings but overall the combined hybrid scores do the best Hybrid search isn t free though it is slower as it has extra logic to combine the results For individual queries the results are often negligible Wrapping upThis article covered ways to improve search accuracy using a hybrid approach We evaluated performance over a subset of the BEIR dataset to show how hybrid search in many situations can improve overall accuracy Custom datasets can also be evaluated using this method as specified in this link This article and the associated benchmarks script can be reused to evaluate what method works best on your data	2023-08-18 17:32:46
海外TECH	Engadget	Lamborghini’s new all-electric concept car was inspired by spaceships	https://www.engadget.com/lamborghinis-new-all-electric-concept-car-was-inspired-by-spaceships-174550629.html?src=rss	Lamborghini s new all electric concept car was inspired by spaceshipsLamborghini known for enabling many a mid life crisis revealed a new EV concept vehicle at Monterey Car Week after teasing the announcement a few day ago The all electric Lamborghini Lanzador boasts all kinds of high tech bells and whistles with a design actually inspired by spaceships This grand tourer GT vehicle features plenty of infotainment features with a large Y shaped center console bridge and a slim dashboard for making adjustments The driver also has instant access to climate controls and various digital functions via an integrated “pilot s unit This unit also allows access to an array of driving modes via the company s ANIMA control system There s even retractable displays that stream pertinent information to passengers regarding speed distance climate entertainment and more As for the design the driver and passenger sit low to the ground as if in a jet and are separated by that center console The company says the interior is “unexpectedly roomy despite a roof height of around meters further increasing the car s low to the ground proportions The rear space can be used to store luggage and other necessities and there s a concealed trunk under the front bonnet for more storage options Design is cool and all but what about all of those internal speed enhancing goodies The Lanzador includes high powered electric motors on each axle with a peak power of over one megawatt There s all wheel drive with e torque on the rear axle for improved cornering Lamborghini says it s all powered by a “new generation high performance battery and ensures a long driving range but didn t announce the actual mileage per charge The company also says that the car s aerodynamic design should further increase real world mileage Though strictly a concept car Lamborghini says the Lanzador is not merely a “whim of designers and engineers and provides a “concrete preview of production vehicles that will begin rolling out in To that end there s an emphasis here on eco friendly design materials like Merino wool sustainably tanned leather and recycled carbon This also adds further proof that the company is serious about going all electric by This article originally appeared on Engadget at	2023-08-18 17:45:50
金融	金融庁ホームページ	資金決済法に基づく払戻手続実施中の商品券の発行者等一覧を更新しました。	https://www.fsa.go.jp/policy/prepaid/index.html	資金決済法	2023-08-18 17:21:00
ニュース	BBC News - Home	Letby not in dock as trial ends	https://www.bbc.co.uk/news/uk-england-merseyside-65960514?at_medium=RSS&at_campaign=KARANGA	hospital	2023-08-18 17:38:23
ニュース	BBC News - Home	The Hundred 2023: Northern Superchargers beat London Spirit to reach knockouts	https://www.bbc.co.uk/sport/cricket/66549699?at_medium=RSS&at_campaign=KARANGA	The Hundred Northern Superchargers beat London Spirit to reach knockoutsNorthern Superchargers seal their place in the knockout stages of The Hundred with a nervy four wicket win over London Spirit who are eliminated	2023-08-18 17:11:56