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Dev
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Seeds on Rails: The Best Way to Create and Feed Your Rails Database
- Seeding a database is an essential step in Rails development, whether you’re setting up a new project, testing features, or ensuring a smooth onboarding experience for new developers.
- The standard way to seed data in Rails is by using the db/seeds.rb file and running 'rails db:seed'. This executes the Ruby code inside seeds.rb, inserting records into the database.
- Some best practices for seeding in Rails include keeping seeds idempotent, using Faker for realistic data generation, using ActiveRecord-Import for bulk inserts, organizing seeds into multiple files, and seeding data based on environment.
- Seeding your database properly can make development and testing much smoother, and following best practices ensures efficiency and maintainability.
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Towards Data Science
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Experiments Illustrated: How Random Assignment Saved Us $1M in Marketing Spend
- IntelyCare, a platform connecting nurses with work opportunities, faced challenges in hiring nurses during the 2020-2021 global pandemic.
- To attract candidates, they considered offering a $100 bonus for completing the first shift, but decided to run an experiment instead of implementing it directly.
- The experiment involved randomly offering bonuses ranging from $0 to $100 in increments of $25 to applicants, with thousands of participants at each bonus level.
- Analyzing the data, they found that the effectiveness of bonuses varied between nurses and nursing assistants.
- Nursing assistants were more likely to start working with any bonus amount, whereas nurses were less likely to start working with a bonus.
- After considering multiple comparisons, they discovered that the applicant's role as a nurse or nursing assistant was a significant dimension affecting the bonus impact.
- The study revealed that for nursing assistants, smaller bonuses had a more significant effect initially, while for nurses, no bonus proved to be more effective.
- Based on the findings, IntelyCare decided to do away with bonuses for nurses and opted for a $25 bonus for nursing assistants.
- This approach saved them from spending an extra $1 million in bonuses while still achieving the desired recruitment outcomes.
- The experiment highlighted the importance of testing and data analysis in making informed decisions, especially in marketing strategies.
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Towards Data Science
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Experiments Illustrated: How We Optimized Premium Listings on Our Nursing Job Board
- IntelyCare, a company that connects nurses with job opportunities, optimized their premium job listings.
- The company uses a sort-by-relevance feature to improve the experience for paying customers and steer away from low-quality jobs.
- Job relevance is determined by a score between 0 and 100, with higher scores being boosted to the top of search results.
- In a geo-randomized experiment, premium job openings performed 25% better than regular jobs.
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TheNewsCrypto
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Redacted Group Confirms RDAC Token Launch on MocaList
- Redacted Group confirms the launch of its native crypto token $RDAC on MocaList, a co-branded token launchpad.
- $RDAC will be launched via a community sale on March 13, 2025 on the launchpad, with a total supply of 43 million tokens.
- Tokens purchased in the sale will be partially released at TGE and rest will be locked for a 1-month cliff period before gradual unlocking.
- Redacted Group aims to expand its ecosystem and reach through the MocaList launch, offering primary access, governance, and incentives for users.
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Towards Data Science
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LettuceDetect: A Hallucination Detection Framework for RAG Applications
- Large Language Models (LLMs) have advanced NLP tasks, but hallucinations remain a challenge in critical domains like healthcare and legal settings.
- Retrieval-Augmented Generation (RAG) aims to reduce hallucinations by grounding LLM responses in retrieved documents.
- LettuceDetect, using ModernBERT, detects hallucinations in RAG applications efficiently and outperforms older BERT-based models.
- RAGTruth is a benchmark for evaluating hallucination detection in RAG settings, providing annotated examples and spans.
- LettuceDetect utilizes token-level classification for hallucination detection, achieving competitive performance with lower computational costs.
- The models are trained on the RAGTruth dataset and perform inference by detecting hallucinations at the token and span levels.
- LettuceDetect demonstrates strong performance in hallucination detection, surpassing other models and achieving state-of-the-art span-level results.
- The models are efficient, processing 30-60 examples per second on a single NVIDIA A100 GPU, suitable for real-time and resource-constrained environments.
- Overall, LettuceDetect offers accurate hallucination detection with lean, purpose-built encoder-based models for RAG systems.
- The framework provides a foundation for future research in expanding to new datasets, languages, and exploring advanced architectures.
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The New Stack
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Kubernetes Job Market Surges: Hybrid Roles Take the Lead With $160K Average Salary
- The global Kubernetes market is projected to reach 11.8 billion USD by 2032 with a CAGR of 24%.
- Hybrid working mode for tech jobs is gaining popularity, with 30% of Kubernetes jobs embracing hybrid work.
- Hybrid jobs offer an average salary of $160,428 per annum, 7% higher than remote jobs and 4% higher than in-office jobs.
- Machine Learning Engineer, Head of Platform Engineering, and Data Engineer are the most hybrid-friendly job titles.
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Pymnts
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US Says Banks Can Hold Crypto, But Should They?
- On March 7, the Office of the Comptroller of the Currency (OCC) reclarified certain crypto banking permissions, confirming that national banks and federal savings associations can engage in crypto-asset custody, stablecoin activities, and participation in distributed ledger networks.
- The OCC expects banks to have strong risk management controls in place for these activities, reducing the burden on banks and providing consistency in the treatment of crypto-related activities.
- There are two primary forms of cryptocurrency custody: custodial (third-party custody) and self-custody. Custodial solutions offer secure storage and compliance frameworks but come with risks. Self-custody aligns with decentralization and financial sovereignty but has its own risks, such as the irreversible loss of funds.
- The OCC's permission for banks to offer custody solutions and engage in stablecoin-related activities presents an opportunity for banks to serve as trusted stablecoin custodians, enhancing cross-border payments and remittances.
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Sdtimes
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OpenSSF creates Project Security Baseline
- The Open Source Security Foundation (OpenSSF) has created a Project Security Baseline to ensure secure development practices for open source projects.
- The baseline provides a set of requirements for developers to enforce secure development practices, depending on the number of contributors and maintainers.
- OpenSSF has also created a compliance crosswalk to map the baseline to various regulatory regimes and frameworks, enabling developers to demonstrate due diligence.
- The baseline maturity model defines different levels of requirements for access control, build and release, documentation, governance, quality, security assessment, and vulnerability.
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Tech Radar
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Nightmare Google Maps glitch is deleting timelines, and there isn't a fix yet
- Google Maps timelines are disappearing for some users
- It seems to be a Google One issue, but there's no known fix
- Thankfully not everyone is affected, but it's frustrating for those who are
- The issue is causing loss of travel history and inability to restore backups
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Medium
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ASSISTER AI: Revolutionizing Small Language Models (SLMs) ASSISTER AI is a pioneering AI…
- ASSISTER AI is dedicated to redefining Small Language Models (SLMs) by addressing their limitations.
- Key features of ASSISTER AI's SLMs include advanced contextual understanding, domain-specific knowledge, ambiguity handling, and continuous learning.
- Applications of ASSISTER AI's SLMs range from virtual assistants and chatbots to language translation and text summarization.
- Benefits of ASSISTER AI's SLMs include improved accuracy, enhanced contextual understanding, increased efficiency, and scalability.
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Tech Radar
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Microsoft is adding image editing and compression to its Windows Share feature - and I couldn't be happier
- Microsoft's Windows 11 23H2 beta includes a new image editing and compression feature in Windows Share.
- It's not clear if this feature will be available in other feature updates or limited to 23H2.
- Users will be able to crop, adjust, and filter images without using the Snipping Tool.
- The inclusion of file compression in Windows Share may eliminate the need for external sites.
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Dev
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Software OR Hardware Raid: What's Better In 2024?
- RAID (redundant array of independent disks) technology combines multiple disk drives into arrays to improve performance and data reliability by spreading data and adding parity or mirroring.
- Challenges faced by RAID in 2024 include decreased reliability with larger HDDs, complexities with NVMe drives due to computational requirements, and issues with network-connected NVMe drives.
- Hardware RAID controllers offer features like SAS drive support, external ports for flexibility, and write cache with battery backup, but can be limited in NVMe implementations by IOPS capabilities and PCIe bandwidth.
- Software RAID provides host flexibility, is OS-specific, uses CPU and RAM resources, and offers features such as working with various storage devices, but may face performance issues with NVMe drives.
- Pros of hardware RAID include cross-OS compatibility and reliable performance for HDDs, while cons include added latency and limited firmware updates.
- Pros of software RAID include hardware-agnosticism and flexibility, but cons include OS specificity and utilization of host resources.
- For SATA installations, onboard RAID or volume managers suffice, while SAS drives benefit from hardware RAID adapters. For NVMe under Linux, xiRAID is recommended for performance and flexibility.
- In conclusion, the choice between software and hardware RAID in 2024 depends on specific use cases, with considerations like drive types, operating systems, and performance requirements.
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Medium
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FAM Newsletter #48 3/10/2025 — LekoNFT (Português/English)
- The FAM Guild newsletter delves into the fantasy world of Realms of Alurya, highlighting upcoming features and blockchain integration for RPG enthusiasts.
- Realms of Alurya allows players to customize heroes, explore dungeons with randomized layouts, and engage in pet-based PvP battles to enhance gameplay.
- Islands in Realms of Alurya serve as crucial locations for acquiring in-game NFTs and raising combat-boosting pets through resource cultivation and crafting.
- Players in Realms of Alurya engage in daily dungeon runs to acquire loot, level up gear, and strategize for challenges, emphasizing effective run management.
- Realms of Alurya's economic model includes a planned dual-token system (ALRY and ALRYG), with current trading facilitated through the MAGIC token on the Ethereum blockchain.
- The game's roadmap includes future updates like co-op integration, new classes, and expanded features, with a focus on community feedback and engagement.
- The FAM Guild introduces Creator Pages for streamers, FAM Rentals offering discounted NFTs, and fosters community collaboration and engagement within the gaming ecosystem.
- LekoNFT, a Brazilian content creator, shares his Web3 journey from initial setbacks to becoming an ambassador, advocating for careful study, community support, and sound investment strategies.
- LekoNFT emphasizes the growth potential of blockchain gaming, the importance of player ownership, and the need for big Web2 developers to adapt to Web3 dynamics for sustainability.
- Advice from LekoNFT includes thorough education in blockchain opportunities beyond P2E games, caution against projects lacking financial stability, and the value of family balance in the industry.
- LekoNFT's story embodies perseverance, adaptation to challenges, and the pursuit of a stable path in the evolving Web3 landscape of blockchain gaming.
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Hackernoon
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Meet New Web3 Mobile Competitor in the Market: Coldware
- Coldware (COLD) is gaining attention with its presale and attracting investors looking for stable blockchain projects.
- Pi Network (PI) struggles to establish itself in the competitive cryptocurrency world.
- Coldware's focus on Web3 mobile solutions and real-world asset tokenization sets it apart.
- Pi Network faces uncertainties due to regulatory hurdles and lack of clarity on listing.
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Sdtimes
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Lessons and surprises from a Kubernetes migration
- Large migrations require a deep evaluation of platform suitability and potential technical debt.
- Significant resources are needed for major platform migrations, justified by negative impacts on end users.
- Engaging with early adopters and collecting feedback is crucial for migration success.
- Breaking down large migration projects into smaller achievable goals leads to team success.
- Effective communication and documentation are key during a migration to Kubernetes.
- The dynamic nature of the Kubernetes ecosystem requires teams to adapt to constant changes.
- Migrating to Kubernetes opens up opportunities for additional features and services.
- The pace of change in Kubernetes environment is surprising compared to legacy platforms.
- KubeCon + CloudNativeCon EU 2025 in London will bring cloud-native professionals together for innovation and learning.
- Registration for KubeCon + CloudNativeCon EU 2025 is open for those interested in Kubernetes and cloud-native technologies.
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