{"id":27,"date":"2024-04-03T04:44:43","date_gmt":"2024-04-03T04:44:43","guid":{"rendered":"https:\/\/www.yuanjunlin.com\/?page_id=27"},"modified":"2024-04-09T04:11:03","modified_gmt":"2024-04-09T04:11:03","slug":"index-html-page","status":"publish","type":"page","link":"https:\/\/www.yuanjunlin.com\/","title":{"rendered":"Homepage"},"content":{"rendered":"\n<div class=\"wp-block-cover\" style=\"min-height:406px;aspect-ratio:unset;\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\"><\/span><img fetchpriority=\"high\" decoding=\"async\" width=\"1706\" height=\"1280\" class=\"wp-block-cover__image-background wp-image-13\" alt=\"\" src=\"https:\/\/www.yuanjunlin.com\/wp-content\/uploads\/2024\/04\/weixin-image_20240401174846.jpg\" data-object-fit=\"cover\"\/><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p style=\"font-size:27px\"><strong>Hello!<\/strong><br><strong>I&#8217;m <em>Yuanjun Lin<\/em><\/strong><\/p>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-ad2f72ca wp-block-group-is-layout-flex\">\n<p class=\"has-text-align-left wp-container-content-9dbf05af\">My world revolves around transforming complex data into actionable insights and meaningful impact. With a solid data science foundation from Duke Kunshan University and currently enhancing my analytics skills at UC Berkeley, I specialize in data science applications that solve real problems. From creating smart algorithms to tackling social issues through technology, I&#8217;m driven by the power of data to make a difference. Explore my projects and join me on a journey where data meets purpose.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-2-color has-alpha-channel-opacity has-contrast-2-background-color has-background is-style-default\"\/>\n<\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div style=\"height:27px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading alignwide has-text-align-center\"><strong>Featured Works<\/strong><\/h2>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p class=\"has-text-align-left has-medium-font-size\"><em>Neural Network-Based Heuristic Selection for Optimization Challenge<\/em><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group is-vertical is-content-justification-center is-layout-flex wp-container-core-group-is-layout-4b2eccd6 wp-block-group-is-layout-flex\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"864\" height=\"476\" src=\"https:\/\/www.yuanjunlin.com\/wp-content\/uploads\/2024\/04\/SHH-rev-1.png\" alt=\"\" class=\"wp-image-49\" style=\"width:321px;height:auto\"\/><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center has-small-font-size\">An Illustration of Selection Hyper-Heuristic Framework<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"1734\" height=\"669\" src=\"https:\/\/www.yuanjunlin.com\/wp-content\/uploads\/2024\/04\/LSTM_TCN.png\" alt=\"\" class=\"wp-image-54\" style=\"width:435px;height:auto\"\/><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center has-small-font-size\">Fitness of Model Solutions on Bin Packing Instances<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group is-vertical is-content-justification-center is-layout-flex wp-container-core-group-is-layout-4b2eccd6 wp-block-group-is-layout-flex\">\n<p>This is a two-person project <a href=\"https:\/\/ieeexplore.ieee.org\/document\/10254068\">published in 2023 IEEE CEC<\/a>, where I was in charge of generating learnable data from a previous Java hyperheuristic framework, developing the LSTM-based selection hyperheuristic (SHH), and finally performance evaluation.<\/p>\n\n\n\n<p>In combinatorial optimization, the quest for efficiency often leads to the exploration of NP-hard problems as a testing field. Our project pioneers the use of neural networks, specifically LSTM and TCN architectures, to establish an SHH that is able to learn from previous HHs and utilize the advantage they have under different circumstances such as the nature of the instance and problem domain. This approach not only elevates the adaptability of heuristic selection across varied problem instances but also encapsulates the collective intelligence of multiple selection hyper-heuristics into a unified, efficient system<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer wp-container-content-62aae154\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.yuanjunlin.com\/index.php\/sample-page\/\">View Details<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:27px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-text-align-left has-medium-font-size\"><em> Genetic Algorithm-based Diversified Article Recommendation System    <\/em><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group is-vertical is-content-justification-center is-layout-flex wp-container-core-group-is-layout-4b2eccd6 wp-block-group-is-layout-flex\">\n<p>This is an ongoing independent study on a genetic algorithm (GA) optimized article recommendation system.<\/p>\n\n\n\n<p>The aim is to finetune the balance between relevance and diversity. Altering conventional similarity assessment methods and incorporating a diversity coefficient, the research tackles the prevalent issue of narrow content scope in content\u2010based systems. The approach entails detailed data processing and feature extraction to refine recommendation quality and efficiency. Empirical results, evidenced by significant ANOVA outcomes for both relevance and diversity (P &lt; .01), affirm the model\u2019s efficacy in delivering a more engaging and varied content selection to users.<\/p>\n\n\n\n<p>The structure is complete with results, yet some improvements such as more efficient Doc2Vec preprocessing and an improved structure with multi-fold weight that is partially inspired by maximal marginal relevance algorithm are being implemented.<\/p>\n\n\n\n<div style=\"height:19px\" aria-hidden=\"true\" class=\"wp-block-spacer wp-container-content-370e7c34\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.yuanjunlin.com\/index.php\/sample-page\/\">View Details<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group is-vertical is-content-justification-center is-layout-flex wp-container-core-group-is-layout-4b2eccd6 wp-block-group-is-layout-flex\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1097\" height=\"547\" src=\"https:\/\/www.yuanjunlin.com\/wp-content\/uploads\/2024\/04\/SWPseudoCodeScShot.jpg\" alt=\"\" class=\"wp-image-127\" style=\"width:418px;height:auto\"\/><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center has-small-font-size\">An Illustration of Selection Hyper-Heuristic Framework<\/p>\n\n\n\n<div style=\"height:8px\" aria-hidden=\"true\" class=\"wp-block-spacer wp-container-content-7d115344\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1320\" height=\"756\" src=\"https:\/\/www.yuanjunlin.com\/wp-content\/uploads\/2024\/04\/SW_noDoc2Vec.png\" alt=\"\" class=\"wp-image-128\" style=\"width:503px;height:auto\"\/><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center has-small-font-size\">Fitness of Model Solutions on Bin Packing Instances<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Featured Works Neural Network-Based Heuristic Selection for Optimization Challenge An Illustration of Selection Hyper-Heuristic Framework Fitness of Model Solutions on Bin Packing Instances This is a two-person project published in 2023 IEEE CEC, where I was in charge of generating learnable data from a previous Java hyperheuristic framework, developing the LSTM-based selection hyperheuristic (SHH), and &#8230; <a title=\"Homepage\" class=\"read-more\" href=\"https:\/\/www.yuanjunlin.com\/\" aria-label=\"Read more about Homepage\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-27","page","type-page","status-publish"],"_links":{"self":[{"href":"https:\/\/www.yuanjunlin.com\/index.php\/wp-json\/wp\/v2\/pages\/27","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yuanjunlin.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.yuanjunlin.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.yuanjunlin.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yuanjunlin.com\/index.php\/wp-json\/wp\/v2\/comments?post=27"}],"version-history":[{"count":43,"href":"https:\/\/www.yuanjunlin.com\/index.php\/wp-json\/wp\/v2\/pages\/27\/revisions"}],"predecessor-version":[{"id":147,"href":"https:\/\/www.yuanjunlin.com\/index.php\/wp-json\/wp\/v2\/pages\/27\/revisions\/147"}],"wp:attachment":[{"href":"https:\/\/www.yuanjunlin.com\/index.php\/wp-json\/wp\/v2\/media?parent=27"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}