{"id":171386,"date":"2014-07-17T00:06:12","date_gmt":"2014-07-17T00:06:12","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/project\/citynoise\/"},"modified":"2019-06-27T12:58:36","modified_gmt":"2019-06-27T19:58:36","slug":"citynoise","status":"publish","type":"msr-project","link":"https:\/\/www.microsoft.com\/en-us\/research\/project\/citynoise\/","title":{"rendered":"CityNoise"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft\" src=\"https:\/\/www.microsoft.com\/en-us\/research\/uploads\/prod\/2016\/02\/citynoise-2.png\" alt=\"\" width=\"283\" height=\"226\" \/>CityNoise is a project led by Dr. Yu Zheng in Microsoft Research. The project aims to diagnose a city&#8217;s noise pollution with crowdsensing and ubiquitous data. It reveals the fine-grained noise situation throughout a city and analyzes the composition of noises in a particular location, by using 311 complaint data together with road network data, points of interests, and social media.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n\t\t\t<div class=\"moray-accordion\" data-show=\"false\">\n\t\t\t\t\t\t\t<div class=\"clearfix\">\n\t\t\t\t\t<div\n\t\t\t\t\t\tclass=\"btn-group align-items-center mb-g float-sm-right\"\n\t\t\t\t\t\trole=\"group\"\n\t\t\t\t\t\tdata-mount=\"collapse-controls\"\n\t\t\t\t\t\tdata-bi-aN=\"accordion-collapse-controls\"\n\t\t\t\t\t\tdata-target=\"#accordion-1\">\n\t\t\t\t\t\t<button class=\"btn btn-link m-0\" aria-disabled=\"false\" aria-pressed=\"false\" data-action=\"expand\" type=\"button\" data-bi-cN=\"Expand all\">Expand all<\/button>\n\t\t\t\t\t\t<span aria-hidden=\"true\"> | <\/span>\n\t\t\t\t\t\t<button class=\"btn btn-link m-0\" aria-disabled=\"false\" aria-pressed=\"false\" data-action=\"collapse\" type=\"button\" data-bi-cN=\"Collapse all\">Collapse all<\/button>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<ul class=\"accordion\" id=\"accordion-1\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<li class=\"m-0\">\n\t\t\t<h4 class=\"accordion-header\">\n\t\t\t\t<button\n\t\t\t\t\tclass=\"btn btn-collapse m-0\"\n\t\t\t\t\ttype=\"button\"\n\t\t\t\t\tdata-mount=\"collapse\"\n\t\t\t\t\tdata-target=\"#collapse-2\"\n\t\t\t\t\taria-expanded=\"false\"\n\t\t\t\t\taria-controls=\"collapse-2\">\n\t\tBackground and Motivation\t\t\t\t<\/button>\n\t\t\t<\/h4>\n\t\t\t<div class=\"collapse\" id=\"collapse-2\">\n\t\t\t\t<div class=\"accordion-body\">\n\t\t\t\t\t\t\t\t\t\t<p>Many major cities are suffering from noise pollution, which compromises working efficiency and even impair\u00a0people\u2019s mental health in a long run. Modeling citywide noises, however, is very challenging, given the following three reasons. 1) Urban noises change over time quickly and vary by location significantly. This means we need to deploy millions of sensors to monitor a city&#8217;s noise. 2) The measurement of noise pollution depends on noise levels and people&#8217;s tolerance to noise;\u00a0the latter changes over time.\u00a03) Noise is usually a mixture of multiple sound sources. Diagnose the composition of noises solely based on sound sensors is very difficult.<\/p>\n<p>New York City (NYC) has opened a platform titled 311 to allow people to complain what they feel annoyed by\u00a0through a mobile app or making a phone call; noise is the third largest category of complaints in the 311 data. As each complaint about noises is associated with a location, time stamp, and a fine-grained noise category, such as loud music or construction noises, the data is actually a result of \u201chuman as a sensor\u201d and \u201ccrowd sensing\u201d, containing rich human intelligence that can help diagnose urban noises. Specifically, the more 311 calls are made in a location, the louder the real noise\u00a0could be\u00a0in the location. In addition,\u00a0the distribution of these 311 complaints over different noise categories may describe the composition of noises in the location.<\/p>\n<p>In short, the 311 data contains rich human intelligence that can help us understand noise pollution from people\u2019s perspectives. It is even better than raw sensor data. However, the data is very sparse, as there are not always people complaining about noise anytime and anywhere.<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/li>\n\t\t\t\t\t\t<li class=\"m-0\">\n\t\t\t<h4 class=\"accordion-header\">\n\t\t\t\t<button\n\t\t\t\t\tclass=\"btn btn-collapse m-0\"\n\t\t\t\t\ttype=\"button\"\n\t\t\t\t\tdata-mount=\"collapse\"\n\t\t\t\t\tdata-target=\"#collapse-3\"\n\t\t\t\t\taria-expanded=\"false\"\n\t\t\t\t\taria-controls=\"collapse-3\">\n\t\tGoal\t\t\t\t<\/button>\n\t\t\t<\/h4>\n\t\t\t<div class=\"collapse\" id=\"collapse-3\">\n\t\t\t\t<div class=\"accordion-body\">\n\t\t\t\t\t\t\t\t\t\t<p>In this project, we infer the fine-grained noise situation (consisting of a noise pollution indicator and the composition of noises) of different time of day for each region of NYC, by using the 311 complaint data together with social media, road network data, and Points of Interests (POIs). The fine-grained information of noise can inform people&#8217;s daily decision making (e.g. finding a quite a hotel to stay) and official&#8217;s policy making on tackling noise pollution.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-213048 alignnone\" src=\"https:\/\/www.microsoft.com\/en-us\/research\/uploads\/prod\/2014\/07\/goal.png\" alt=\"goal\" width=\"898\" height=\"410\" srcset=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2014\/07\/goal.png 898w, https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2014\/07\/goal-300x137.png 300w, https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2014\/07\/goal-768x351.png 768w\" sizes=\"(max-width: 898px) 100vw, 898px\" \/><\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/li>\n\t\t\t\t\t\t<li class=\"m-0\">\n\t\t\t<h4 class=\"accordion-header\">\n\t\t\t\t<button\n\t\t\t\t\tclass=\"btn btn-collapse m-0\"\n\t\t\t\t\ttype=\"button\"\n\t\t\t\t\tdata-mount=\"collapse\"\n\t\t\t\t\tdata-target=\"#collapse-4\"\n\t\t\t\t\taria-expanded=\"false\"\n\t\t\t\t\taria-controls=\"collapse-4\">\n\t\tMethodology\t\t\t\t<\/button>\n\t\t\t<\/h4>\n\t\t\t<div class=\"collapse\" id=\"collapse-4\">\n\t\t\t\t<div class=\"accordion-body\">\n\t\t\t\t\t\t\t\t\t\t<\/p>\n<p>We model the noise situation of NYC with a three dimension tensor, where the three dimensions stand for regions, noise categories, and time slots, respectively.\u00a0We build anther three matrices (X, Y, Z) from road network data, POIs, and check-in data. By factorizing the three matrices\u00a0together with the tensor, we\u00a0supplement the\u00a0sparse tensor, therefore, recovering the noise situation throughout NYC. The insight supporting the method is that the three additional datasets have a strong correlation with urban noises. Thus, the knowledge learned from the three datasets can tackle the data sparsity problem in 311 data.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-213049 alignnone\" src=\"https:\/\/www.microsoft.com\/en-us\/research\/uploads\/prod\/2014\/07\/data_fusion_method.png\" alt=\"data_fusion_method\" width=\"895\" height=\"587\" srcset=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2014\/07\/data_fusion_method.png 895w, https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2014\/07\/data_fusion_method-300x197.png 300w, https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2014\/07\/data_fusion_method-768x504.png 768w\" sizes=\"(max-width: 895px) 100vw, 895px\" \/><\/p>\n<p>We build a matrix X based on POIs and road network data, where a row stands for a region and a column denotes a feature, e.g. the number of intersections in the region and distribution of POIs across different categories. Matrix ? incorporates the similarity between two regions in terms of their geographic features. Intuitively, regions with similar geographic features could have a similar noise situation.<\/p>\n<p>We build another matrix Y based on users check-in data from social networks, where a row stands for a time slot and a column denotes a region. Each entry represents the number of check-ins people have made in a particular region and at a particular time interval. Matrix ? reveals the correlation between different time slots in terms of the distribution of check-ins indifferent regions. Two time slots sharing a similar user check-in pattern could have a similar noise situation. Matrix Y also implies the similarity between two regions in terms of people&#8217;s check-in patterns in temporal spaces.<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/li>\n\t\t\t\t\t\t<li class=\"m-0\">\n\t\t\t<h4 class=\"accordion-header\">\n\t\t\t\t<button\n\t\t\t\t\tclass=\"btn btn-collapse m-0\"\n\t\t\t\t\ttype=\"button\"\n\t\t\t\t\tdata-mount=\"collapse\"\n\t\t\t\t\tdata-target=\"#collapse-5\"\n\t\t\t\t\taria-expanded=\"false\"\n\t\t\t\t\taria-controls=\"collapse-5\">\n\t\tResults\t\t\t\t<\/button>\n\t\t\t<\/h4>\n\t\t\t<div class=\"collapse\" id=\"collapse-5\">\n\t\t\t\t<div class=\"accordion-body\">\n\t\t\t\t\t\t\t\t\t\t<p>A public website showcasing the results\u00a0can be accessed <a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" href=\"http:\/\/citynoise.azurewebsites.net\/\">here<\/a> and a demo paper is <a href=\"https:\/\/www.microsoft.com\/en-us\/research\/publication\/a-noise-map-of-new-york-city\/\">here<\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-213050\" src=\"https:\/\/www.microsoft.com\/en-us\/research\/uploads\/prod\/2014\/07\/website-1024x731.png\" alt=\"website\" width=\"600\" height=\"428\" srcset=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2014\/07\/website.png 1024w, https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2014\/07\/website-300x214.png 300w, https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2014\/07\/website-768x548.png 768w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/li>\n\t\t\t\t\t\t<li class=\"m-0\">\n\t\t\t<h4 class=\"accordion-header\">\n\t\t\t\t<button\n\t\t\t\t\tclass=\"btn btn-collapse m-0\"\n\t\t\t\t\ttype=\"button\"\n\t\t\t\t\tdata-mount=\"collapse\"\n\t\t\t\t\tdata-target=\"#collapse-6\"\n\t\t\t\t\taria-expanded=\"false\"\n\t\t\t\t\taria-controls=\"collapse-6\">\n\t\tData and Codes\t\t\t\t<\/button>\n\t\t\t<\/h4>\n\t\t\t<div class=\"collapse\" id=\"collapse-6\">\n\t\t\t\t<div class=\"accordion-body\">\n\t\t\t\t\t\t\t\t\t\t<ol>\n<li>Download the matrices and tensor data <a href=\"https:\/\/www.microsoft.com\/en-us\/research\/publication\/diagnosing-new-york-citys-noises-with-ubiquitous-data\/\">here<\/a>.<\/li>\n<li>Download the code implementing the research <a href=\"https:\/\/www.microsoft.com\/en-us\/research\/publication\/diagnosing-new-york-citys-noises-with-ubiquitous-data\/\">here<\/a>.<\/li>\n<li>Download the mobile client for measuring real noise levels (and the real measurements) <a href=\"https:\/\/www.microsoft.com\/en-us\/research\/publication\/diagnosing-new-york-citys-noises-with-ubiquitous-data\/\">here<\/a>.<\/li>\n<\/ol>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/li>\n\t\t\t\t\t\t\t\t\t<\/ul>\n\t\t<\/div>\n\t\t\n","protected":false},"excerpt":{"rendered":"<p>CityNoise is a project led by Dr. Yu Zheng in Microsoft Research. The project aims to diagnose a city&#8217;s noise pollution with crowdsensing and ubiquitous data. It reveals the fine-grained noise situation throughout a city and analyzes the composition of noises in a particular location, by using 311 complaint data together with road network data, [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"footnotes":""},"research-area":[13556,13563],"msr-locale":[268875],"msr-impact-theme":[],"msr-pillar":[],"class_list":["post-171386","msr-project","type-msr-project","status-publish","hentry","msr-research-area-artificial-intelligence","msr-research-area-data-platform-analytics","msr-locale-en_us","msr-archive-status-active"],"msr_project_start":"2014-07-17","related-publications":[166986,166674,166676],"related-downloads":[],"related-videos":[],"related-groups":[],"related-events":[],"related-opportunities":[],"related-posts":[],"related-articles":[],"tab-content":[],"slides":[],"related-researchers":[],"msr_research_lab":[199560],"msr_impact_theme":[],"_links":{"self":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-project\/171386"}],"collection":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-project"}],"about":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/types\/msr-project"}],"version-history":[{"count":2,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-project\/171386\/revisions"}],"predecessor-version":[{"id":595735,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-project\/171386\/revisions\/595735"}],"wp:attachment":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/media?parent=171386"}],"wp:term":[{"taxonomy":"msr-research-area","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/research-area?post=171386"},{"taxonomy":"msr-locale","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-locale?post=171386"},{"taxonomy":"msr-impact-theme","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-impact-theme?post=171386"},{"taxonomy":"msr-pillar","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-pillar?post=171386"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}