The document discusses computational fluid dynamics (CFD) simulations of flow around a void or empty space using MATLAB. It describes governing equations for fluid momentum and energy that are solved using finite difference methods. The analysis involves simultaneous solution of the unsteady equations over time. Sample MATLAB code is shown that loads data, defines parameters, iterates the calculations over 3D spatial domains, and saves updated velocity, pressure and other field variable data. Results are shown as pressure profiles indicating higher pressure outside the void that decreases to near zero inside, and a visualization of the shrinking void size over time.
This document discusses Linux commands for viewing running processes including ps -e to see everything, ps -p1 to see a specific process, and killall to end processes. It also mentions restarting processes and viewing process sizes graphically.
The document discusses tri-color garbage collection used in Go. It has three main phases: root scanning to identify reachable objects, mark phase to mark reachable objects, and sweep phase to free unmarked objects. This approach aims to minimize mutator pause times during garbage collection by using a write barrier to track pointers to unscanned objects during concurrent marking. The document also provides examples comparing memory usage and GC performance between using lists versus slices in Go code.
The document discusses Golang garbage collection (GC). It describes the tri-color GC algorithm used in Golang which includes a root scanning phase, mark phase, and sweep phase. It discusses how the mark and sweep phases can cause mutator pause times. It also provides examples of GC traces and how the GC behaves differently based on whether a program is using slices or lists. It shows how to use the runtime/pprof package to profile CPU and memory usage. Finally, it discusses improvements to Golang's GC across different versions.
To calculate the arithmetic mean number of runs scored in cricket matches in 2016, the document describes using GNU coreutils and awk to: 1) sum the total runs scored by each team in each match from a data file; 2) divide the total runs by the number of matches to get the average runs per match; and 3) execute a command that outputs the result as 4.47776, which is the mean number of runs scored per game.
Mining Correlations on Massive Bursty Time Series Collection (DASFAA2015)Tomasz Kusmierczyk
The presentation of the paper "Tomasz Kusmierczyk, Kjetil Nørvåg: Mining Correlations on Massive Bursty Time Series Collections. DASFAA (1) 2015: 55-71"
Abstract: Existing methods for finding correlations between bursty time series are limited to collections consisting of a small number of time series. In this paper, we present a novel approach for mining correlation in collections consisting of a large number of time series. In our approach, we use bursts co-occurring in different streams as the measure of their relatedness. By exploiting the pruning properties of our measure we develop new indexing structures and algorithms that allow for efficient mining of related pairs from millions of streams. An experimental study performed on a large time series collection demonstrates the efficiency and scalability of the proposed approach.
Dummy log generation using poisson samplingKwanghee Choi
This document discusses generating dummy log data using Poisson sampling. It describes modeling log counts per hour as a Poisson distribution, which can be used to simulate logs appearing randomly over time. The implementation allows generating logs either at a constant rate (homogeneous Poisson process) or at a varying rate over time (inhomogeneous Poisson process). The results are dummy log data that fits the target distribution of real log counts per hour.
This document outlines key cost concepts including: short-run average variable cost curve, short-run average total cost curve, long-run average cost curve, short-run marginal cost curve, long-run marginal cost curve. It defines total cost, variable cost, average total cost using the slope of total cost divided by quantity, and marginal cost as the change in total cost over a change in quantity. The relationship between marginal cost and average fixed cost is also covered.
The document outlines the evolution of web technologies over time including HTML5 specifications, modern web APIs, and browser capabilities. It notes that an incremental approach to evolving HTML standards worked better than trying to switch everyone to XML at once. The document also references comments about using the full Safari engine to build apps for iPhone and how the term "HTML5" is commonly used as a buzzword for modern web technologies.
The document discusses the evolution of HTML5 and modern web technologies. It notes that HTML5 is often used as a buzzword to refer to these technologies. It also discusses native app development versus web technologies, noting one company's regret at betting too heavily on HTML5 over native. Finally, it provides timelines showing the development of HTML5 features and standards by organizations like WHATWG and W3C.
The document discusses the evolution of HTML5 and modern web technologies. It notes that HTML5 is an umbrella term used to refer to these technologies, and that evolving HTML incrementally through standards bodies, rather than trying to completely replace it at once, has been a more effective approach. The document outlines many current and emerging specifications and APIs that make up what is considered HTML5, including features for multimedia, forms, graphics, app caching, and more. It positions HTML5 and associated technologies as being extensible for various applications like games, virtual reality, and high performance uses.
The document discusses upcoming changes and features for Microsoft Edge, including the ability to edit URLs for favorites, drag and drop favorites, and address bars that no longer jiggle. It also promotes collaboration within the web community and mentions a beta linting tool called SonarWhal for the web.
The document discusses the evolution of HTML5 and modern web technologies. It notes that HTML5 is used as a buzzword to refer to these technologies. The development involved incremental evolution, as trying to switch to XML all at once did not work. The document outlines many technologies, such as canvas, web workers, web sockets, that have been added to HTML5 and modern web standards over time by the WHATWG and W3C groups.
The document provides an overview of the technologies that make up modern web standards, including elements, APIs, protocols, formats and more that enable rich interactive experiences and applications on the internet. It touches on areas like HTML, CSS, JavaScript, networking, multimedia, device access and more. The technologies listed support building progressive web apps, real-time communications, games, virtual reality experiences and high performance applications in an extensible manner.
The document discusses the evolution of web technologies including HTML5 specifications and elements developed by WHATWG and W3C, CSS specifications and properties developed by WHATWG and W3C, and JavaScript/ECMAScript specifications. It also discusses newer web capabilities such as WebRTC, WebAssembly, WebVR, WebGL, Service Workers and Progressive Web Apps. The document emphasizes that specifications must work together with implementations to advance web standards.
The document lists many technologies related to HTML5, CSS3, ECMAScript, and web standards. It includes elements, syntax, parsers, APIs, multimedia, forms, storage, networking, graphics, web workers, web sockets, and more. The technologies are being developed by groups like the W3C, WHATWG, IETF, and Khronos to advance the capabilities of web applications.
The document describes a PWA (Progressive Web App) for a Lesser Panda app called "Lesser Panda's Fluffy Fun App!". It includes metadata like the app name, icons, and start URL. It also describes registering a service worker to subscribe to push notifications by calling the push manager's subscribe method and saving the subscription to a server. Finally, it lists modern web technologies supported by browsers.
The document lists various web technologies including HTML5, CSS3, JavaScript, HTTP/2, WebRTC, WebGL, and more. It also discusses how these technologies are implemented differently in Firefox OS versus Android, with Firefox OS aiming to optimize for the web while Android uses more native platforms and libraries. Finally, it suggests Firefox OS may transitionally combine web and native implementations.
AI EngineHost Review: Revolutionary USA Datacenter-Based Hosting with NVIDIA ...SOFTTECHHUB
I started my online journey with several hosting services before stumbling upon Ai EngineHost. At first, the idea of paying one fee and getting lifetime access seemed too good to pass up. The platform is built on reliable US-based servers, ensuring your projects run at high speeds and remain safe. Let me take you step by step through its benefits and features as I explain why this hosting solution is a perfect fit for digital entrepreneurs.
The document outlines the evolution of web technologies over time including HTML5 specifications, modern web APIs, and browser capabilities. It notes that an incremental approach to evolving HTML standards worked better than trying to switch everyone to XML at once. The document also references comments about using the full Safari engine to build apps for iPhone and how the term "HTML5" is commonly used as a buzzword for modern web technologies.
The document discusses the evolution of HTML5 and modern web technologies. It notes that HTML5 is often used as a buzzword to refer to these technologies. It also discusses native app development versus web technologies, noting one company's regret at betting too heavily on HTML5 over native. Finally, it provides timelines showing the development of HTML5 features and standards by organizations like WHATWG and W3C.
The document discusses the evolution of HTML5 and modern web technologies. It notes that HTML5 is an umbrella term used to refer to these technologies, and that evolving HTML incrementally through standards bodies, rather than trying to completely replace it at once, has been a more effective approach. The document outlines many current and emerging specifications and APIs that make up what is considered HTML5, including features for multimedia, forms, graphics, app caching, and more. It positions HTML5 and associated technologies as being extensible for various applications like games, virtual reality, and high performance uses.
The document discusses upcoming changes and features for Microsoft Edge, including the ability to edit URLs for favorites, drag and drop favorites, and address bars that no longer jiggle. It also promotes collaboration within the web community and mentions a beta linting tool called SonarWhal for the web.
The document discusses the evolution of HTML5 and modern web technologies. It notes that HTML5 is used as a buzzword to refer to these technologies. The development involved incremental evolution, as trying to switch to XML all at once did not work. The document outlines many technologies, such as canvas, web workers, web sockets, that have been added to HTML5 and modern web standards over time by the WHATWG and W3C groups.
The document provides an overview of the technologies that make up modern web standards, including elements, APIs, protocols, formats and more that enable rich interactive experiences and applications on the internet. It touches on areas like HTML, CSS, JavaScript, networking, multimedia, device access and more. The technologies listed support building progressive web apps, real-time communications, games, virtual reality experiences and high performance applications in an extensible manner.
The document discusses the evolution of web technologies including HTML5 specifications and elements developed by WHATWG and W3C, CSS specifications and properties developed by WHATWG and W3C, and JavaScript/ECMAScript specifications. It also discusses newer web capabilities such as WebRTC, WebAssembly, WebVR, WebGL, Service Workers and Progressive Web Apps. The document emphasizes that specifications must work together with implementations to advance web standards.
The document lists many technologies related to HTML5, CSS3, ECMAScript, and web standards. It includes elements, syntax, parsers, APIs, multimedia, forms, storage, networking, graphics, web workers, web sockets, and more. The technologies are being developed by groups like the W3C, WHATWG, IETF, and Khronos to advance the capabilities of web applications.
The document describes a PWA (Progressive Web App) for a Lesser Panda app called "Lesser Panda's Fluffy Fun App!". It includes metadata like the app name, icons, and start URL. It also describes registering a service worker to subscribe to push notifications by calling the push manager's subscribe method and saving the subscription to a server. Finally, it lists modern web technologies supported by browsers.
The document lists various web technologies including HTML5, CSS3, JavaScript, HTTP/2, WebRTC, WebGL, and more. It also discusses how these technologies are implemented differently in Firefox OS versus Android, with Firefox OS aiming to optimize for the web while Android uses more native platforms and libraries. Finally, it suggests Firefox OS may transitionally combine web and native implementations.
AI EngineHost Review: Revolutionary USA Datacenter-Based Hosting with NVIDIA ...SOFTTECHHUB
I started my online journey with several hosting services before stumbling upon Ai EngineHost. At first, the idea of paying one fee and getting lifetime access seemed too good to pass up. The platform is built on reliable US-based servers, ensuring your projects run at high speeds and remain safe. Let me take you step by step through its benefits and features as I explain why this hosting solution is a perfect fit for digital entrepreneurs.
AI Changes Everything – Talk at Cardiff Metropolitan University, 29th April 2...Alan Dix
Talk at the final event of Data Fusion Dynamics: A Collaborative UK-Saudi Initiative in Cybersecurity and Artificial Intelligence funded by the British Council UK-Saudi Challenge Fund 2024, Cardiff Metropolitan University, 29th April 2025
https://alandix.com/academic/talks/CMet2025-AI-Changes-Everything/
Is AI just another technology, or does it fundamentally change the way we live and think?
Every technology has a direct impact with micro-ethical consequences, some good, some bad. However more profound are the ways in which some technologies reshape the very fabric of society with macro-ethical impacts. The invention of the stirrup revolutionised mounted combat, but as a side effect gave rise to the feudal system, which still shapes politics today. The internal combustion engine offers personal freedom and creates pollution, but has also transformed the nature of urban planning and international trade. When we look at AI the micro-ethical issues, such as bias, are most obvious, but the macro-ethical challenges may be greater.
At a micro-ethical level AI has the potential to deepen social, ethnic and gender bias, issues I have warned about since the early 1990s! It is also being used increasingly on the battlefield. However, it also offers amazing opportunities in health and educations, as the recent Nobel prizes for the developers of AlphaFold illustrate. More radically, the need to encode ethics acts as a mirror to surface essential ethical problems and conflicts.
At the macro-ethical level, by the early 2000s digital technology had already begun to undermine sovereignty (e.g. gambling), market economics (through network effects and emergent monopolies), and the very meaning of money. Modern AI is the child of big data, big computation and ultimately big business, intensifying the inherent tendency of digital technology to concentrate power. AI is already unravelling the fundamentals of the social, political and economic world around us, but this is a world that needs radical reimagining to overcome the global environmental and human challenges that confront us. Our challenge is whether to let the threads fall as they may, or to use them to weave a better future.
Spark is a powerhouse for large datasets, but when it comes to smaller data workloads, its overhead can sometimes slow things down. What if you could achieve high performance and efficiency without the need for Spark?
At S&P Global Commodity Insights, having a complete view of global energy and commodities markets enables customers to make data-driven decisions with confidence and create long-term, sustainable value. 🌍
Explore delta-rs + CDC and how these open-source innovations power lightweight, high-performance data applications beyond Spark! 🚀
DevOpsDays Atlanta 2025 - Building 10x Development Organizations.pptxJustin Reock
Building 10x Organizations with Modern Productivity Metrics
10x developers may be a myth, but 10x organizations are very real, as proven by the influential study performed in the 1980s, ‘The Coding War Games.’
Right now, here in early 2025, we seem to be experiencing YAPP (Yet Another Productivity Philosophy), and that philosophy is converging on developer experience. It seems that with every new method we invent for the delivery of products, whether physical or virtual, we reinvent productivity philosophies to go alongside them.
But which of these approaches actually work? DORA? SPACE? DevEx? What should we invest in and create urgency behind today, so that we don’t find ourselves having the same discussion again in a decade?
AI and Data Privacy in 2025: Global TrendsInData Labs
In this infographic, we explore how businesses can implement effective governance frameworks to address AI data privacy. Understanding it is crucial for developing effective strategies that ensure compliance, safeguard customer trust, and leverage AI responsibly. Equip yourself with insights that can drive informed decision-making and position your organization for success in the future of data privacy.
This infographic contains:
-AI and data privacy: Key findings
-Statistics on AI data privacy in the today’s world
-Tips on how to overcome data privacy challenges
-Benefits of AI data security investments.
Keep up-to-date on how AI is reshaping privacy standards and what this entails for both individuals and organizations.
Procurement Insights Cost To Value Guide.pptxJon Hansen
Procurement Insights integrated Historic Procurement Industry Archives, serves as a powerful complement — not a competitor — to other procurement industry firms. It fills critical gaps in depth, agility, and contextual insight that most traditional analyst and association models overlook.
Learn more about this value- driven proprietary service offering here.
Book industry standards are evolving rapidly. In the first part of this session, we’ll share an overview of key developments from 2024 and the early months of 2025. Then, BookNet’s resident standards expert, Tom Richardson, and CEO, Lauren Stewart, have a forward-looking conversation about what’s next.
Link to recording, presentation slides, and accompanying resource: https://bnctechforum.ca/sessions/standardsgoals-for-2025-standards-certification-roundup/
Presented by BookNet Canada on May 6, 2025 with support from the Department of Canadian Heritage.
Linux Support for SMARC: How Toradex Empowers Embedded DevelopersToradex
Toradex brings robust Linux support to SMARC (Smart Mobility Architecture), ensuring high performance and long-term reliability for embedded applications. Here’s how:
• Optimized Torizon OS & Yocto Support – Toradex provides Torizon OS, a Debian-based easy-to-use platform, and Yocto BSPs for customized Linux images on SMARC modules.
• Seamless Integration with i.MX 8M Plus and i.MX 95 – Toradex SMARC solutions leverage NXP’s i.MX 8 M Plus and i.MX 95 SoCs, delivering power efficiency and AI-ready performance.
• Secure and Reliable – With Secure Boot, over-the-air (OTA) updates, and LTS kernel support, Toradex ensures industrial-grade security and longevity.
• Containerized Workflows for AI & IoT – Support for Docker, ROS, and real-time Linux enables scalable AI, ML, and IoT applications.
• Strong Ecosystem & Developer Support – Toradex offers comprehensive documentation, developer tools, and dedicated support, accelerating time-to-market.
With Toradex’s Linux support for SMARC, developers get a scalable, secure, and high-performance solution for industrial, medical, and AI-driven applications.
Do you have a specific project or application in mind where you're considering SMARC? We can help with Free Compatibility Check and help you with quick time-to-market
For more information: https://www.toradex.com/computer-on-modules/smarc-arm-family
TrustArc Webinar: Consumer Expectations vs Corporate Realities on Data Broker...TrustArc
Most consumers believe they’re making informed decisions about their personal data—adjusting privacy settings, blocking trackers, and opting out where they can. However, our new research reveals that while awareness is high, taking meaningful action is still lacking. On the corporate side, many organizations report strong policies for managing third-party data and consumer consent yet fall short when it comes to consistency, accountability and transparency.
This session will explore the research findings from TrustArc’s Privacy Pulse Survey, examining consumer attitudes toward personal data collection and practical suggestions for corporate practices around purchasing third-party data.
Attendees will learn:
- Consumer awareness around data brokers and what consumers are doing to limit data collection
- How businesses assess third-party vendors and their consent management operations
- Where business preparedness needs improvement
- What these trends mean for the future of privacy governance and public trust
This discussion is essential for privacy, risk, and compliance professionals who want to ground their strategies in current data and prepare for what’s next in the privacy landscape.
UiPath Community Berlin: Orchestrator API, Swagger, and Test Manager APIUiPathCommunity
Join this UiPath Community Berlin meetup to explore the Orchestrator API, Swagger interface, and the Test Manager API. Learn how to leverage these tools to streamline automation, enhance testing, and integrate more efficiently with UiPath. Perfect for developers, testers, and automation enthusiasts!
📕 Agenda
Welcome & Introductions
Orchestrator API Overview
Exploring the Swagger Interface
Test Manager API Highlights
Streamlining Automation & Testing with APIs (Demo)
Q&A and Open Discussion
Perfect for developers, testers, and automation enthusiasts!
👉 Join our UiPath Community Berlin chapter: https://community.uipath.com/berlin/
This session streamed live on April 29, 2025, 18:00 CET.
Check out all our upcoming UiPath Community sessions at https://community.uipath.com/events/.
23. 25
Deliveryrate
BDP BDP+BufSize
RTT
Optimal: max BW and min RTT (Kleinrock)
amount in flight
Optimal operating point
23
Deliveryrate
BDP BDP+BufSize
RTT
Loss based CC (CUBIC / Reno)
amount in flight
Loss based congestion control in deep buffers
BDP = (max BW) * (min RTT)
26
Deliveryrate
BDP BDP+BufSize
RTT
amount in flight
Est min RTT = windowed min of RTT samples
Est max BW = windowed max of BW samples
Estimating optimal point (max BW, min RTT)
26. BDP = (max BW) * (min RTT)
26
Deliveryrate
BDP BDP+BufSize
RTT
amount in flight
Est min RTT = windowed min of RTT samples
Est max BW = windowed max of BW samples
Estimating optimal point (max BW, min RTT)
27. BDP = (max BW) * (min RTT)
26
Deliveryrate
BDP BDP+BufSize
RTT
amount in flight
Est min RTT = windowed min of RTT samples
Est max BW = windowed max of BW samples
Estimating optimal point (max BW, min RTT)