<?xml version="1.0" encoding="UTF-8"?>
<!-- generator="wordpress.com" -->
<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:image="http://www.google.com/schemas/sitemap-image/1.1" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"><url><loc>https://ray-gao.com/about/</loc><image:image><image:loc>https://ray-gao.com/wp-content/uploads/2023/07/vt-new.jpg</image:loc><image:title>vt-new</image:title></image:image><lastmod>2025-11-17T12:42:50+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/2025/04/21/cps-2025-workshop-recap-grateful-and-inspired/</loc><image:image><image:loc>https://ray-gao.com/wp-content/uploads/2025/04/img_9201.jpeg</image:loc><image:title>IMG_9201</image:title></image:image><lastmod>2025-08-05T07:42:31+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2025/04/24/a-comprehensive-indoor-environment-dataset-from-single-family-houses-in-the-us/</loc><lastmod>2025-04-24T13:57:57+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/publications/</loc><lastmod>2024-01-18T19:11:07+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/2024/01/18/developing-a-machine-learning-model-to-predict-clash-resolution-options/</loc><lastmod>2024-01-18T18:30:00+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/design-and-usability-evaluation-of-an-annotated-video-based-learning-environment-for-construction-engineering-education/</loc><lastmod>2024-01-18T18:28:21+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/towards-automated-occupant-profile-creation-in-smart-buildings-a-machine-learning-enabled-approach-for-user-persona-generation/</loc><lastmod>2024-01-18T18:26:16+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/assistance-from-the-ambient-intelligence-cyber-physical-system-applications-in-smart-buildings-for-cognitively-declined-occupants/</loc><lastmod>2024-01-18T18:23:20+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/construction-practice-knowledge-for-complementing-classroom-teaching-during-site-visits/</loc><lastmod>2024-01-18T18:19:58+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/industry-perception-of-the-suitability-of-wearable-robot-for-construction-work/</loc><lastmod>2024-01-18T18:15:47+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/graph-based-simulation-for-cyber-physical-attacks-on-smart-buildings/</loc><lastmod>2024-01-18T18:10:48+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/internet-of-things-enabled-data-acquisition-framework-for-smart-building-applications/</loc><lastmod>2024-01-18T18:06:27+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/a-human-centred-approach-to-smart-housing/</loc><lastmod>2024-01-18T17:54:47+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/a-framework-of-developing-machine-learning-models-for-facility-life-cycle-cost-analysis/</loc><lastmod>2024-01-18T17:49:54+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/bim-assisted-building-automation-system-information-exchange-using-bacnet-and-ifc/</loc><lastmod>2024-01-18T17:45:48+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/a-meta-model-based-optimization-approach-for-fast-and-reliable-calibration-of-building-energy-models/</loc><lastmod>2024-01-18T17:40:08+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/bim-enabled-facilities-operation-and-maintenance-a-review/</loc><lastmod>2024-01-18T17:36:03+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/past-present-and-future-of-bim-enabled-facilities-operation-and-maintenance/</loc><lastmod>2024-01-18T17:35:21+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/planning-and-developing-facility-management-enabled-building-information-model-fm-enabled-bim/</loc><lastmod>2024-01-18T17:34:34+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/a-scalable-cyber-physical-system-data-acquisition-framework-for-the-smart-built-environment/</loc><lastmod>2024-01-18T17:33:00+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/machine-learning-applications-in-facility-life-cycle-cost-analysis-a-review/</loc><lastmod>2024-01-18T17:28:36+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/a-framework-for-developing-machine-learning-models-for-facility-life-cycle-cost-analysis-through-bim-and-iot/</loc><lastmod>2024-01-18T17:24:57+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/a-review-of-building-information-modeling-bim-and-the-internet-of-things-iot-devices-integration-present-status-and-future-trends/</loc><lastmod>2024-01-18T17:19:50+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/2024/01/18/foundational-research-in-integrated-building-internet-of-things-iot-data-standards/</loc><lastmod>2024-01-18T17:07:11+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://ray-gao.com/user-persona-development-with-machine-learning/</loc><lastmod>2024-01-18T16:23:25+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/building-data-lite/</loc><lastmod>2024-01-18T00:47:00+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/structural-engineering/</loc><lastmod>2024-01-18T00:12:25+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/courses/</loc><lastmod>2024-01-18T00:11:46+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/research-projects_/</loc><lastmod>2024-01-18T00:10:56+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/building-information-modeling/</loc><lastmod>2024-01-18T00:06:28+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/data-analysis-visualization/</loc><lastmod>2024-01-17T23:42:32+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/ambient-intelligence/</loc><image:image><image:loc>https://ray-gao.com/wp-content/uploads/2023/08/persona_1.jpg</image:loc><image:title>persona_1</image:title></image:image><image:image><image:loc>https://ray-gao.com/wp-content/uploads/2023/08/ami_1.png</image:loc><image:title>ami_1</image:title></image:image><lastmod>2024-01-17T23:22:31+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/assistance-from-the-ambient-intelligence/</loc><lastmod>2024-01-17T23:21:32+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/machine-learning/</loc><image:image><image:loc>https://ray-gao.com/wp-content/uploads/2023/08/persona_2.jpg</image:loc><image:title>persona_2</image:title></image:image><image:image><image:loc>https://ray-gao.com/wp-content/uploads/2023/08/lcca_1.png</image:loc><image:title>lcca_1</image:title></image:image><lastmod>2024-01-17T17:59:20+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/life-cycle-cost-analysis-with-machine-learning/</loc><lastmod>2024-01-17T17:44:02+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/cyber-physical-security-in-smart-buildings/</loc><lastmod>2024-01-17T16:47:55+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/bim-based-facilities-management/</loc><lastmod>2024-01-17T16:47:20+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/data-interoperability/</loc><lastmod>2024-01-17T16:46:48+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/portfolio/</loc><image:image><image:loc>https://ray-gao.com/wp-content/uploads/2023/08/cps_1.jpg</image:loc><image:title>cps_1</image:title></image:image><image:image><image:loc>https://ray-gao.com/wp-content/uploads/2023/08/bim_fm_1.png</image:loc><image:title>bim_fm_1</image:title></image:image><image:image><image:loc>https://ray-gao.com/wp-content/uploads/2023/08/interoper_1.jpg</image:loc><image:title>interoper_1</image:title></image:image><image:image><image:loc>https://ray-gao.com/wp-content/uploads/2023/08/bdl_1.png</image:loc><image:title>bdl_1</image:title></image:image><lastmod>2024-01-17T16:32:39+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/blog/</loc><lastmod>2023-07-31T15:36:54+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com/contact/</loc><lastmod>2023-07-11T14:04:59+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://ray-gao.com</loc><changefreq>daily</changefreq><priority>1.0</priority><lastmod>2025-11-17T12:42:50+00:00</lastmod></url></urlset>
