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ProgrammingDEV Community ·

How AI and Real-Time Data Are Reshaping Hotel Dynamic Pricing Systems

A data engineer with nearly a decade of experience in travel industry pricing systems has detailed the architectural and engineering challenges behind modern AI-driven hotel dynamic pricing. Unlike traditional revenue management tools that updated rates once or twice a day, today's systems require sub-second inference and continuous price adjustments fed by dozens of real-time data sources. Effective feature engineering for these models draws on temporal patterns, competitor rate data, demand signals like search trends and cancellation rates, and guest-level behavioural data from CRM and booking platforms. Additional contextual inputs such as weather forecasts, flight loads, and local events are also evaluated, though distinguishing genuinely predictive signals from noise remains a key challenge. The author notes that many organisations invest heavily in machine learning models but struggle when deploying them within legacy infrastructure that cannot support real-time recalculation.

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ScienceWIRED ·

Genetic Mutation Found to Help Drug-Resistant Malaria Spread More Easily

Scientists have identified a mutation in the malaria parasite that is contributing to the spread of drug-resistant strains. The mutation appears to reduce the effectiveness of a frontline antimalarial drug used as a primary treatment. Researchers say the findings offer new insight into why the parasite is becoming harder to treat. Understanding this genetic change could be critical for developing strategies to combat resistant malaria strains going forward.

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ProgrammingHacker News ·

Value Classes Require Compiler Support to Deliver Full Performance Gains

A technical article by Johan Sjölén examines why value classes in programming languages still depend heavily on compiler-level support to be effective. The piece argues that simply introducing value class syntax or semantics is insufficient without corresponding compiler optimizations. Without this 'compiler sympathy,' the performance benefits that value classes promise may not materialize in practice. The article was shared on Hacker News, where it received minimal engagement at the time of indexing.

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SportsESPNcricinfo ·

New Zealand allrounder Fraser Sheat signs with Nottinghamshire for title defence

New Zealand allrounder Fraser Sheat has joined English county side Nottinghamshire for the closing stretch of the County Championship season. He will be available for the final five matches as the club looks to defend its title. Nottinghamshire brought in Sheat to bolster their squad during the crucial run-in period. The signing reflects the county's ambition to secure back-to-back Championship titles.

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ProgrammingDEV Community ·

Audit Finds Zero Freely Automatable Startup Directory Submissions Among 29 Tested

A developer re-audited 29 startup directories in 2025 to determine how many allow automated submissions without an account, finding the number had dropped from one in June to zero. The sole previously open option, Launching Next, now returns a 403 error to automated requests, while two directories have gone fully offline with their domains no longer resolving. Four directories confirm login requirements by redirecting submit URLs to sign-in pages, and five return 404 errors on submit URLs still listed in their own documentation. The only free submission path confirmed in the latest run was Fazier, with all others requiring accounts or paid tiers. The author notes that 'not automatable' is a narrower finding than 'unusable,' as human users in a browser may still access many of these forms successfully.

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IndiaNDTV ·

Flash Floods From Tibet Kill 8 in Nepal, Border Villages Destroyed

At least eight people have died in Nepal following devastating flash floods that originated in Tibet. The floods sent torrents of muddy water surging through mountain valleys in Himalayan districts along the Tibetan border. Several villages in the affected areas were washed away by the force of the floodwaters. Videos shared by Nepal Police on social media captured the scale of destruction as the floods tore through the region.

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ProgrammingHacker News ·

OldInsuranceMaps.net Joins OpenStreetMap US as Official Charter Project

OldInsuranceMaps.net has been accepted as a Charter Project under OpenStreetMap US, marking a formal recognition of the platform within the open mapping community. The site digitizes and makes accessible historic fire insurance maps, which are valuable tools for historical research and urban planning. Charter Project status aligns OldInsuranceMaps.net with OpenStreetMap US's mission to support open geographic data initiatives. This designation provides the project with greater visibility and organizational backing from the OpenStreetMap US community.

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IndiaNDTV ·

Nepal Flash Floods Destroy Bridge and Homes at Rasuwa Border Crossing

Devastating flash floods struck the Bhote Koshi river in Nepal, causing widespread destruction in the region. The floods severely damaged Timure Bazaar, a local market area near the border. The Rasuwa border crossing, including its customs facilities, was also heavily impacted by the floodwaters. Videos circulating online captured the rapid destruction of bridges and residential structures within seconds.

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ProgrammingDEV Community ·

Why mobile test locators break and how to pick stable ones

A software engineering guide published on DEV Community explains why many so-called flaky mobile tests actually fail due to poorly chosen element locators rather than test logic. The article argues that developer-assigned attributes like android:id, accessibilityIdentifier, and Flutter's testID are the most reliable locators because they only change when a developer deliberately modifies them. In contrast, locators based on XPath hierarchies, sibling indices, or class names break whenever a layout is refactored or an OS update alters how a control is rendered. The guide ranks locator strategies for Android, iOS, and Flutter across multiple tiers, covering tools like Appium and WebdriverIO with code examples in Python, Java, and JavaScript. It concludes that the most durable long-term fix is collaborating with developers to ensure stable, unique IDs are added at the point where features are built.

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ProgrammingDEV Community ·

Docker multi-stage builds cut image size from 823MB to 11MB

Docker images built with a single-stage Dockerfile often ship unnecessary build tools — such as compilers and dev dependencies — that are not required at runtime, bloating production images significantly. Multi-stage builds solve this by allowing developers to use separate environments for building and running an application within a single Dockerfile. Each stage starts with its own isolated filesystem via a new FROM instruction, and only selected files are copied into the final image using COPY --from. A Go application that produced an 823MB single-stage image can be reduced to around 11MB by compiling in a builder stage and copying only the binary into a minimal base image like FROM scratch. For applications requiring SSL certificates or basic runtime libraries, options like Google's distroless images offer a middle ground between a bare binary and a full operating system.

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Crypto & Web3CoinDesk ·

Zcash drops 8% as Grayscale spot ETF debuts on NYSE after 60% rally

Zcash, a privacy-focused cryptocurrency, fell approximately 8% on Tuesday after its Grayscale spot ETF began trading on the New York Stock Exchange. The ETF launch had been a key driver behind Zcash's surge to an eight-year price high. Traders appear to be engaging in classic 'sell the news' behavior following the highly anticipated event. The pullback is compounded by significant leverage that had built up during the rally leading to the listing.

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IndiaTimes of India ·

India's Rice Exports to Iran Likely to Continue Despite US Sanctions Pressure

India's rice exports to Iran are expected to remain largely unaffected despite the threat of tightened US sanctions. Iran continues to show strong demand for Indian rice, driven primarily by food security needs. Indian exporters have adapted by routing payments through third-party countries such as Turkey and the UAE. Essential commodities like rice and pharmaceuticals are generally less vulnerable to trade disruptions under such sanctions. However, overall bilateral trade between India and Iran has already fallen considerably from its historical peak.

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ProgrammingDEV Community ·

EU Cyber Resilience Act reporting obligations become enforceable on September 11

The European Union's Cyber Resilience Act (CRA) begins enforcing its incident and vulnerability reporting requirements on September 11, 2025, ahead of the full compliance deadline of December 11, 2027. Manufacturers of 'products with digital elements' must now report actively exploited vulnerabilities within 24 hours, provide fuller notifications within 72 hours, and submit final reports within 14 days to a month. Non-compliance with reporting rules can result in fines of up to €15 million or 2.5% of global annual turnover. Pure browser-based SaaS products generally fall outside CRA scope and under NIS2 instead, but companies shipping installable components such as desktop apps, SDKs, browser extensions, or on-premise agents are likely covered. Security experts warn that many B2B SaaS firms may unknowingly fall within scope due to supplementary installable tools alongside their core web products.

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IndiaNDTV ·

India Stays Cooler Amid Global Warming: Scientists Probe the Anomaly

While the rest of the world experiences intensifying heat, India has been recording comparatively cooler conditions, presenting an unusual climate anomaly. Europe, which is warming at more than twice the global average, is preparing for increasingly severe climate impacts. Scientists and climate experts are trying to understand the factors behind India's relative coolness against a backdrop of global heating. The phenomenon is considered unexpected given broader warming trends affecting most regions of the world.

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WorldBBC World ·

Canada and Iran Push Back Against Trump's Pressure Tactics

The Trump administration has been leveraging US economic and political dominance to challenge both allies and adversaries. Canada, traditionally a close US partner, has responded with retaliatory measures to counter American pressure. Iran has similarly found ways to resist US coercion despite longstanding sanctions and diplomatic isolation. Both nations demonstrate that even powerful US leverage has practical limits when targeted countries choose to fight back. The developments signal a broader test of how far American influence can stretch under Trump's assertive foreign policy approach.

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