It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.

Source: https://blog-978503281389.mit-edu.top/post/0374529861

  1. <!doctype html>
  2. <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" prefix="og: http://ogp.me/ns#">
  3.  
  4.  <head>
  5.    <meta charset="utf-8">
  6.    <meta name="applicable-device" content="pc,mobile">
  7.    <meta name="viewport" content="width=device-width, initial-scale=1">
  8.    <title>Learning Hierarchical Representations for Procedurally Generated Game Worlds #405266857465 (2025-02-08)</title>
  9.    <link rel="canonical" href="https://blog-978503281389.mit-edu.top/post/0374529861">
  10.    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;700&display=swap">
  11.    <link rel="stylesheet" href="https://x.mit-edu.top/static/css/style.css">
  12.    <script src="https://x.mit-edu.top/static/js/lazysizes.min.js" async></script>
  13.    <link rel="shortcut icon" href="/favicon.ico">
  14.    <!-- Open Graph Metadata -->
  15.    <meta property="og:type" content="article" />
  16.    <meta property="og:title" content="Learning Hierarchical Representations for Procedurally Generated Game Worlds" />
  17.    <meta property="og:description" content="Learning Hierarchical Representations for Procedurally Generated Game Worlds #405266857465 (2025-02-08)" />
  18.    <meta property="og:url" content="https://blog-978503281389.mit-edu.top/post/0374529861" />
  19.    <meta property="og:site_name" content="mit-edu.top" />
  20.    <meta property="og:image" content="https://x.mit-edu.top/static/images/post/16.jpg" />
  21.    <meta property="og:article:published_time" content="2025-02-08T09:38:52Z" />
  22.    <meta property="og:article:author" content="Dr. Alexander Ward" />
  23.    <meta property="og:article:section" content="mit-edu.top" />
  24.    <meta property="og:article:tag" content="Games, Mobile Games, Video Games" />
  25.    <!-- Schema.org -->
  26.    <script type="application/ld+json">{
  27.            "@context": "https://schema.org",
  28.            "@type": "ScholarlyArticle",
  29.            "headline": "Learning Hierarchical Representations for Procedurally Generated Game Worlds #405266857465 (2025-02-08)",
  30.            "author": {
  31.                "@type": "Person",
  32.                "name": "Dr. Alexander Ward",
  33.                "affiliation": {
  34.                    "@type": "Organization",
  35.                    "name": "mit-edu.top"
  36.                },
  37.                "url": "https://blog-978503281389.mit-edu.top/post/0374529861"
  38.            },
  39.            "datePublished": "2025-02-08T09:38:52Z",
  40.            "image": "https://x.mit-edu.top/static/images/post/16.jpg",
  41.            "journal": {
  42.                "@type": "Periodical",
  43.                "name": "mit-edu.top",
  44.                "issn": "10.1069/405266857465"
  45.            },
  46.            "publisher": {
  47.                "@type": "Organization",
  48.                "name": "mit-edu.top",
  49.                "url": "https://blog-978503281389.mit-edu.top"
  50.            },
  51.            "doi": "405266857465",
  52.            "abstract": "Learning Hierarchical Representations for Procedurally Generated Game Worlds #405266857465 (2025-02-08)",
  53.            "citation": {
  54.                "@type": "CreativeWork",
  55.                "name": "Learning Hierarchical Representations for Procedurally Generated Game Worlds",
  56.                "author": "Dr. Alexander Ward",
  57.                "datePublished": "2025-02-08T09:38:52Z",
  58.                "url": "https://blog-978503281389.mit-edu.top/post/0374529861"
  59.            }
  60.        }
  61.    </script>
  62. </head>
  63.  
  64. <body>
  65.    <div class="site-mobile-menu site-navbar-target">
  66.        <div class="site-mobile-menu-header">
  67.            <div class="site-mobile-menu-close">
  68.                <span class="icofont-close js-menu-toggle"></span>
  69.            </div>
  70.        </div>
  71.        <div class="site-mobile-menu-body"></div>
  72.    </div>
  73.    <nav class="site-nav">
  74.        <div class="container">
  75.            <div class="site-navigation">
  76.                <div class="row">
  77.                    <div class="col-md-6 text-center order-1 order-md-2 mb-3 mb-md-0">
  78.                        <a href="https://blog-978503281389.mit-edu.top" class="logo m-0 text-uppercase">mit-edu.top</a>
  79.                    </div>
  80.                    <div class="col-md-3 order-3 order-md-1">
  81.                    </div>
  82.                </div>
  83.            </div>
  84.        </div>
  85.    </nav>
  86.    <div class="section post-section pt-5">
  87.        <div class="container">
  88.            <div class="row justify-content-center">
  89.                <div class="col-lg-8">
  90.                    <div class="text-center">
  91.                        <img src="https://x.mit-edu.top/static/images/user/9.jpg" alt="Learning Hierarchical Representations for Procedurally Generated Game Worlds" title="Learning Hierarchical Representations for Procedurally Generated Game Worlds" class="author-pic img-fluid rounded-circle mx-auto">
  92.                    </div>
  93.                    <span class="d-block text-center">Alexander Ward</span>
  94.                    <span class="date d-block text-center small text-uppercase text-black-50 mb-5">2025-02-08</span>
  95.                    <h2 class="heading text-center">Learning Hierarchical Representations for Procedurally Generated Game Worlds</h2>
  96.                    <p class="lead mb-4 text-center">Thanks to Alexander Ward for contributing the article "Learning Hierarchical Representations for Procedurally Generated Game Worlds".
  97.                    </p>
  98.                    <img src="https://x.mit-edu.top/static/images/post/16.jpg" alt="Learning Hierarchical Representations for Procedurally Generated Game Worlds" title="Learning Hierarchical Representations for Procedurally Generated Game Worlds" class="img-fluid rounded mb-4 lazyload">
  99.                    <p>Virtual reality gaming has unlocked a new dimension of immersion, transporting players into fantastical realms where they can interact with virtual environments and characters in ways previously unimaginable. The sensory richness of VR experiences, coupled with intuitive motion controls, has redefined how players engage with games, blurring the boundaries between the digital realm and the physical world.</p>
  100. <p>This study examines the psychological effects of mobile game addiction, including its impact on mental health, social relationships, and academic performance. It also explores societal perceptions of gaming addiction and discusses potential interventions and preventive measures.</p>
  101. <p>This research critically examines the ethical considerations of marketing practices in the mobile game industry, focusing on how developers target players through personalized ads, in-app purchases, and player data analysis. The study investigates the ethical implications of targeting vulnerable populations, such as minors, by using persuasive techniques like loot boxes, microtransactions, and time-limited offers. Drawing on ethical frameworks in marketing and consumer protection law, the paper explores the balance between business interests and player welfare, emphasizing the importance of transparency, consent, and social responsibility in game marketing. The research also offers recommendations for ethical advertising practices that avoid manipulation and promote fair treatment of players.</p>
  102. <p>This paper explores the potential role of mobile games in the development of digital twin technologies—virtual replicas of real-world entities and environments—focusing on how gaming engines and simulation platforms can contribute to the creation of accurate, real-time digital representations. The study examines the technological infrastructure required for mobile games to act as tools for digital twin creation, as well as the ethical considerations involved in representing real-world data and experiences in virtual spaces. The paper discusses the convergence of mobile gaming, AI, and the Internet of Things (IoT), proposing new avenues for innovation in both gaming and digital twin industries.</p>
  103. <p>Indie game developers play a vital role in shaping the diverse landscape of gaming, bringing fresh perspectives, innovative gameplay mechanics, and compelling narratives to the forefront. Their creative freedom and entrepreneurial spirit fuel a culture of experimentation and discovery, driving the industry forward with bold ideas and unique gaming experiences that captivate players' imaginations.</p>
  104.  
  105.                    <p>
  106.                    <a href="/redirect/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">Link</a>
  107.                    </p>
  108.                    <p><a href="https://www.linegames.org/" target="_blank" class="custom-link">External link</a>
  109. <a href="https://www.iliiili.com/" target="_blank" class="custom-link">External link</a>
  110. <a href="https://www.digwow.net/" target="_blank" class="custom-link">External link</a>
  111. <a href="https://www.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  112. <a href="https://www.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  113. <a href="https://316784264781-edu.iliiili.com/" target="_blank" class="custom-link">External link</a>
  114. <a href="https://210441234994-edu.digwow.net/" target="_blank" class="custom-link">External link</a>
  115. <a href="https://888763294973-edu.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  116. <a href="https://390778990044-edu.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  117. <a href="https://268657136912-gov.iliiili.com/" target="_blank" class="custom-link">External link</a>
  118. <a href="https://342730179157-gov.digwow.net/" target="_blank" class="custom-link">External link</a>
  119. <a href="https://956051477342-gov.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  120. <a href="https://066658993167-gov.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  121. <a href="https://275290985591-gov-edu.iliiili.com/" target="_blank" class="custom-link">External link</a>
  122. <a href="https://649473789455-gov-edu.digwow.net/" target="_blank" class="custom-link">External link</a>
  123. <a href="https://245661389809-gov-edu.free-giftcodes.com/" target="_blank" class="custom-link">External link</a>
  124. <a href="https://998557621678-gov-edu.gifthub.com.ru/" target="_blank" class="custom-link">External link</a>
  125. <a href="https://047082617174-edu.iliiili.com/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  126. <a href="https://312203193959-edu.digwow.net/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  127. <a href="https://721889783481-edu.free-giftcodes.com/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  128. <a href="https://643351783013-edu.gifthub.com.ru/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  129. <a href="https://433738700989-gov.iliiili.com/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  130. <a href="https://857105360605-gov.digwow.net/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  131. <a href="https://884195439812-gov.free-giftcodes.com/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  132. <a href="https://783871757477-gov.gifthub.com.ru/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  133. <a href="https://link.naver.com/bridge?004074553072&amp;url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  134. <a href="https://link.naver.com/bridge?525406785062&amp;url=https://naver525406785062-edu.digwow.net" target="_blank" class="custom-link">External link</a>
  135. <a href="https://link.naver.com/bridge?238075776274&amp;url=https://naver238075776274-edu.iliiili.com" target="_blank" class="custom-link">External link</a>
  136. <a href="https://link.naver.com/bridge?730037299840&amp;url=https://naver730037299840-edu.1717173.xyz" target="_blank" class="custom-link">External link</a>
  137. <a href="https://link.naver.com/bridge?518024248145&amp;url=https://naver518024248145-edu.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  138. <a href="https://link.naver.com/bridge?723340714728&amp;url=https://naver723340714728-gov.digwow.net" target="_blank" class="custom-link">External link</a>
  139. <a href="https://link.naver.com/bridge?547532583485&amp;url=https://naver547532583485-gov.iliiili.com" target="_blank" class="custom-link">External link</a>
  140. <a href="https://link.naver.com/bridge?910724296631&amp;url=https://naver910724296631-gov.1717173.xyz" target="_blank" class="custom-link">External link</a>
  141. <a href="https://link.naver.com/bridge?713195040793&amp;url=https://naver713195040793-gov.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  142. <a href="https://link.naver.com/bridge?051309990973&amp;url=https://naver051309990973-gov-edu.digwow.net" target="_blank" class="custom-link">External link</a>
  143. <a href="https://link.naver.com/bridge?493066237557&amp;url=https://naver493066237557-gov-edu.iliiili.com" target="_blank" class="custom-link">External link</a>
  144. <a href="https://link.naver.com/bridge?051031336567&amp;url=https://naver051031336567-gov-edu.1717173.xyz" target="_blank" class="custom-link">External link</a>
  145. <a href="https://link.naver.com/bridge?466563903219&amp;url=https://naver466563903219-gov-edu.gifthub.com.ru" target="_blank" class="custom-link">External link</a>
  146. <a href="https://blog-933788483596.gifthub.news/" target="_blank" class="custom-link">External link</a>
  147. <a href="https://blog-739386132798.jp-edu.sbs/" target="_blank" class="custom-link">External link</a>
  148. <a href="https://blog-189410403772.kr-edu.sbs/" target="_blank" class="custom-link">External link</a>
  149. <a href="https://blog-520980553491.krlinkedin.sbs/" target="_blank" class="custom-link">External link</a>
  150. <a href="https://blog-004373292143.mit-edu.sbs/" target="_blank" class="custom-link">External link</a>
  151. <a href="https://blog-284562724812.mit-edu.buzz/" target="_blank" class="custom-link">External link</a>
  152. <a href="https://blog-867216326864.mit-edu.tech/" target="_blank" class="custom-link">External link</a>
  153. <a href="https://blog-283407826383.mit-edu.site/" target="_blank" class="custom-link">External link</a>
  154. <a href="https://blog-566057244065.mit-edu.top/" target="_blank" class="custom-link">External link</a>
  155. <a href="https://blog-708484802253.usa-gov.top/" target="_blank" class="custom-link">External link</a>
  156. <a href="https://research-046774131737.mit-edu.pp.ua/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  157. <a href="https://research-461867437286.harvard-edu.pp.ua/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  158. <a href="https://research-666992206984.stanford-edu.pp.ua/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  159. <a href="https://research-497561217304.cambridge-edu.pp.ua/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  160. <a href="https://research-148976543232.berkeley-edu.pp.ua/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  161. <a href="https://research-563251690457.oxford-edu.pp.ua/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  162. <a href="https://research-688328833630-edu.wwv.pp.ua/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  163. <a href="https://research-294518765181-edu.sean.pp.ua/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  164. <a href="https://research-251307065907-edu.line.pp.ua/?url=https://blog-978503281389.mit-edu.top/post/0374529861" target="_blank" class="custom-link">External link</a>
  165. </p>
  166.                    <div class="row mt-5 pt-5 border-top">
  167.                    </div>
  168.                </div>
  169.            </div>
  170.        </div>
  171.    </div>
  172.    <div class="section pb-0">
  173.        <div class="container">
  174.            <div class="row">
  175.                <div class="col-lg-12">
  176.                    <h2 class="heading">Related</h2>
  177.                </div>
  178.            </div>
  179.            <div class="row justify-content-center">
  180.                <div class="col-lg-12">
  181.                    <div class="post-entry d-md-flex small-horizontal mb-5">
  182.                        <div class="me-md-5 thumbnail mb-3 mb-md-0">
  183.                            <a href="https://blog-978503281389.mit-edu.top/post/3042169578">
  184.                            <img src="https://x.mit-edu.top/static/images/post/16.jpg" alt="A Predictive Model for Player Lifetime Value in Freemium Games" title="A Predictive Model for Player Lifetime Value in Freemium Games" class="img-fluid lazyload">
  185.                            </a>
  186.                        </div>
  187.                        <div class="content">
  188.                            <div class="post-meta mb-3">
  189.                                <a href="https://blog-3042169578.mit-edu.top/post/3042169578/" target="_blank">
  190.                                <span class="date">2025-02-08</span>
  191.                                </a>
  192.                            </div>
  193.                            <h2 class="heading"><a href="https://blog-978503281389.mit-edu.top/post/3042169578">A Predictive Model for Player Lifetime Value in Freemium Games</a></h2>
  194.                            <p class="info">This study explores the evolution of virtual economies within mobile games, focusing on the integration of digital currency and blockchain technology. It analyzes how virtual economies are structured in mobile games, including the use of in-game currencies, tradeable assets, and microtransactions. The paper also investigates the potential of blockchain technology to provide decentralized, secure, and transparent virtual economies, examining its impact on player ownership, digital asset exchange, and the creation of new revenue models for developers and players alike.</p>
  195.                            <a href="https://blog-978503281389.mit-edu.top/post/3042169578" class="post-author d-flex align-items-center">
  196.                                <div class="author-pic">
  197.                                    <img src="https://x.mit-edu.top/static/images/user/9.jpg" alt="A Predictive Model for Player Lifetime Value in Freemium Games" title="A Predictive Model for Player Lifetime Value in Freemium Games" class="lazyload">
  198.                                </div>
  199.                                <div class="text">
  200.                                    <strong>Paul Young</strong>
  201.                                    <span>2025-02-08 published post</span>
  202.                                </div>
  203.                            </a>
  204.                        </div>
  205.                    </div>
  206.                </div>
  207.                <div class="col-lg-12">
  208.                    <div class="post-entry d-md-flex small-horizontal mb-5">
  209.                        <div class="me-md-5 thumbnail mb-3 mb-md-0">
  210.                            <a href="https://blog-978503281389.mit-edu.top/post/4902783156">
  211.                            <img src="https://x.mit-edu.top/static/images/post/1.jpg" alt="The Application of Non-Fungible Tokens for Dynamic Game Content Ownership" title="The Application of Non-Fungible Tokens for Dynamic Game Content Ownership" class="img-fluid lazyload">
  212.                            </a>
  213.                        </div>
  214.                        <div class="content">
  215.                            <div class="post-meta mb-3">
  216.                                <a href="https://blog-4902783156.mit-edu.top/post/4902783156/" target="_blank">
  217.                                <span class="date">2025-02-08</span>
  218.                                </a>
  219.                            </div>
  220.                            <h2 class="heading"><a href="https://blog-978503281389.mit-edu.top/post/4902783156">The Application of Non-Fungible Tokens for Dynamic Game Content Ownership</a></h2>
  221.                            <p class="info">The storytelling in video games has matured into an art form, offering players complex narratives filled with rich characters, moral dilemmas, and emotionally resonant experiences that rival those found in literature and cinema. Players are no longer passive consumers but active participants in interactive narratives, shaping the outcome of stories through their choices and actions. This interactive storytelling blurs the line between player and protagonist, creating deeply personal and immersive narratives that leave a lasting impact.</p>
  222.                            <a href="https://blog-978503281389.mit-edu.top/post/4902783156" class="post-author d-flex align-items-center">
  223.                                <div class="author-pic">
  224.                                    <img src="https://x.mit-edu.top/static/images/user/9.jpg" alt="The Application of Non-Fungible Tokens for Dynamic Game Content Ownership" title="The Application of Non-Fungible Tokens for Dynamic Game Content Ownership" class="lazyload">
  225.                                </div>
  226.                                <div class="text">
  227.                                    <strong>Ashley Adams</strong>
  228.                                    <span>2025-02-08 published post</span>
  229.                                </div>
  230.                            </a>
  231.                        </div>
  232.                    </div>
  233.                </div>
  234.                <div class="col-lg-12">
  235.                    <div class="post-entry d-md-flex small-horizontal mb-5">
  236.                        <div class="me-md-5 thumbnail mb-3 mb-md-0">
  237.                            <a href="https://blog-978503281389.mit-edu.top/post/8352710694">
  238.                            <img src="https://x.mit-edu.top/static/images/post/4.jpg" alt="Entanglement-Based Systems for Real-Time Multiplayer Synchronization" title="Entanglement-Based Systems for Real-Time Multiplayer Synchronization" class="img-fluid lazyload">
  239.                            </a>
  240.                        </div>
  241.                        <div class="content">
  242.                            <div class="post-meta mb-3">
  243.                                <a href="https://blog-8352710694.mit-edu.top/post/8352710694/" target="_blank">
  244.                                <span class="date">2025-02-08</span>
  245.                                </a>
  246.                            </div>
  247.                            <h2 class="heading"><a href="https://blog-978503281389.mit-edu.top/post/8352710694">Entanglement-Based Systems for Real-Time Multiplayer Synchronization</a></h2>
  248.                            <p class="info">This study investigates the economic systems within mobile games, focusing on the development of virtual economies, marketplaces, and the integration of real-world currencies in digital spaces. The research explores how mobile games have created virtual goods markets, where players can buy, sell, and trade in-game assets for real money. By applying economic theories related to virtual currencies, supply and demand, and market regulation, the paper analyzes the implications of these digital economies for the gaming industry and broader digital commerce. The study also addresses the ethical considerations of monetization models, such as microtransactions, loot boxes, and the implications for player welfare.</p>
  249.                            <a href="https://blog-978503281389.mit-edu.top/post/8352710694" class="post-author d-flex align-items-center">
  250.                                <div class="author-pic">
  251.                                    <img src="https://x.mit-edu.top/static/images/user/13.jpg" alt="Entanglement-Based Systems for Real-Time Multiplayer Synchronization" title="Entanglement-Based Systems for Real-Time Multiplayer Synchronization" class="lazyload">
  252.                                </div>
  253.                                <div class="text">
  254.                                    <strong>Gloria Bryant</strong>
  255.                                    <span>2025-02-08 published post</span>
  256.                                </div>
  257.                            </a>
  258.                        </div>
  259.                    </div>
  260.                </div>
  261.            </div>
  262.        </div>
  263.    </div>
  264.    <div class="py-5 bg-light mx-md-3 sec-subscribe">
  265.        <div class="container">
  266.            <div class="row">
  267.                <div class="col-lg-12">
  268.                    <h2 class="h4 fw-bold">Subscribe to newsletter</h2>
  269.                </div>
  270.            </div>
  271.            <form class="row">
  272.                <div class="col-md-8">
  273.                    <div class="mb-3 mb-md-0">
  274.                        <input type="email" class="form-control" placeholder="Enter your email">
  275.                    </div>
  276.                </div>
  277.                <div class="col-md-4 d-grid">
  278.                    <input type="submit" class="btn btn-primary" value="Subscribe">
  279.                </div>
  280.            </form>
  281.        </div>
  282.    </div>
  283.    <div class="site-footer">
  284.        <div class="container">
  285.            <div class="row justify-content-center copyright">
  286.                <div class="col-lg-7 text-center">
  287.                    <div class="widget">
  288.                        <p>Copyright &copy;
  289.                            <script>document.write(new Date().getFullYear());</script> All rights reserved.
  290.                        </p>
  291. <p>
  292.    < Top VPS Hosting Choice ><br>
  293.    <a href="https://evolution-host.com?ref=DQgZ6P" target="_blank">
  294.        <img src="https://x.mit-edu.top/static/images/evolution-host.png" alt="Evolution Host" title="Evolution Host" class="evhost lazyload">
  295.    </a>
  296. </p>
  297.                    </div>
  298.                </div>
  299.            </div>
  300.        </div>
  301.    </div>
  302. </body>
  303.  
  304. </html>
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda