[{"content":"Welcome to my personal website.\nI created this site as a place to record ideas, research notes, experiments, and occasional reflections on problems that I find interesting. Most of my current work is related to LLM-based affective computing and spatio-temporal forecasting, although the topics appearing here may gradually extend beyond these areas.\nI hope to keep this website relatively simple. Some posts may document ongoing research, some may contain technical notes or failed experiments, and others may simply record questions that I think are worth thinking about. The content may be written in English, Chinese, or a mixture of both.\nAs my research interests and experience evolve, I expect this site to evolve with them. For a more formal introduction, please see the About page.\n","permalink":"https://hengchaoxu.online/posts/welcome/","summary":"Welcome to my personal website. I use this space to record ideas, research notes, experiments, and reflections on problems that I find interesting. My current work is mainly related to LLM-based affective computing and spatio-temporal forecasting. Some posts will document ongoing research, while others may contain technical notes, failed experiments, or questions worth thinking about. Content may be written in English, Chinese, or a mixture of both.","title":"Welcome To My Personal Website"},{"content":" Hengchao (Harlan) Xu Undergraduate student and researcher\nEducation: B.Mgt. candidate in Big Data Management and Application, Dongbei University of Finance and Economics (expected July 2027).\nResearch affiliation: Key Laboratory of Big Data Management Optimization and Decision of Liaoning Province.\nResearch interests: LLM-based affective computing and spatio-temporal forecasting.\nContact: Email · GitHub · LinkedIn\nI am Hengchao Xu (许恒超), and I also go by Harlan or Superanto. I am currently an undergraduate student at Dongbei University of Finance and Economics, majoring in Big Data Management and Application. I expect to graduate in July 2027.\nI am also an undergraduate researcher at the Key Laboratory of Big Data Management Optimization and Decision of Liaoning Province. My current work focuses mainly on LLM-based affective computing and spatio-temporal forecasting. I am particularly interested in questions that help explain how models behave, rather than only whether they perform better.\nThis website serves as a public record of my research notes, technical reflections, and occasional writing. I use it to document ideas that I think are worth keeping, including unfinished thoughts that may later develop into more formal work.\nFor a more detailed view of my current interests, see Research. Public papers and manuscripts will be listed under Publications as they become available.\nCode and site updates are available on GitHub.\n","permalink":"https://hengchaoxu.online/about/","summary":"\u003csection class=\"about-profile\" aria-label=\"Profile summary\"\u003e\n  \u003cdiv class=\"about-profile__photo\"\u003e\n    \u003cimg src=\"/images/about/life-photo.jpg\" alt=\"Hengchao Xu standing by the sea\" width=\"1440\" height=\"1080\" loading=\"eager\" fetchpriority=\"high\" decoding=\"async\"\u003e\n  \u003c/div\u003e\n  \u003cdiv class=\"about-profile__body\"\u003e\u003ch2 id=\"hengchao-harlan-xu\"\u003e\u003cspan class=\"notranslate person-name\" translate=\"no\" lang=\"en\"\u003eHengchao (Harlan) Xu\u003c/span\u003e\u003c/h2\u003e\n\u003cp\u003e\u003cem\u003eUndergraduate student and researcher\u003c/em\u003e\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eEducation:\u003c/strong\u003e B.Mgt. candidate in Big Data Management and Application, Dongbei University of Finance and Economics (expected July 2027).\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eResearch affiliation:\u003c/strong\u003e Key Laboratory of Big Data Management Optimization and Decision of Liaoning Province.\u003c/p\u003e","title":"About"},{"content":"This page is still under construction — partly because the website is new, and partly because research takes longer than git push.\nI am currently working on problems in affective computing, large language models, and spatio-temporal forecasting. Several projects are at different stages of development, from experiments and manuscripts to submissions.\nMy interests are relatively broad, but I care most about problems where a clear research question can lead to a technically meaningful result.\nPapers, preprints, and other research outputs will be listed here once they are publicly available.\n","permalink":"https://hengchaoxu.online/publications/","summary":"\u003cp\u003eThis page is still under construction — partly because the website is new, and partly because research takes longer than \u003ccode\u003egit push\u003c/code\u003e.\u003c/p\u003e\n\u003cp\u003eI am currently working on problems in affective computing, large language models, and spatio-temporal forecasting. Several projects are at different stages of development, from experiments and manuscripts to submissions.\u003c/p\u003e","title":"Publications"},{"content":"My current work centers on LLM-based affective computing and human–AI interaction. I am interested in understanding why a model behaves as it does, especially in emotionally sensitive settings. Improvements in aggregate scores are useful, but I am more interested in the behavioral changes behind those improvements and whether they can be explained in a meaningful way.\nI also work on spatio-temporal forecasting. In this area, I focus on incorporating structured information into predictive models while keeping the evaluation protocol clear and reproducible. This work has made me particularly attentive to whether an observed gain reflects a genuine modeling contribution.\nMore broadly, I am drawn to research questions that begin with a simple observation and become more interesting once tested. I enjoy problems where careful experiments can gradually turn an empirical pattern into a clearer understanding of model behavior.\nSome of this work is still ongoing. I will expand this page as the projects become ready to share publicly.\n","permalink":"https://hengchaoxu.online/research/","summary":"\u003cp\u003eMy current work centers on \u003cem\u003eLLM-based affective computing\u003c/em\u003e and \u003cem\u003ehuman–AI interaction\u003c/em\u003e. I am interested in understanding why a model behaves as it does, especially in emotionally sensitive settings. Improvements in aggregate scores are useful, but I am more interested in the behavioral changes behind those improvements and whether they can be explained in a meaningful way.\u003c/p\u003e","title":"Research"}]