{"id":170845,"date":"2011-11-08T23:36:50","date_gmt":"2011-11-08T23:36:50","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/project\/computing-with-spatial-trajectories\/"},"modified":"2017-06-06T09:31:37","modified_gmt":"2017-06-06T16:31:37","slug":"computing-with-spatial-trajectories","status":"publish","type":"msr-project","link":"https:\/\/www.microsoft.com\/en-us\/research\/project\/computing-with-spatial-trajectories\/","title":{"rendered":"Computing with Spatial Trajectories"},"content":{"rendered":"<p align=\"justify\"><strong><img loading=\"lazy\" decoding=\"async\" class=\"alignleft\" src=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2016\/02\/trajectorycomputing-cover-computing_with_spatial_trajectories.jpg\" alt=\"\" width=\"153\" height=\"231\" \/>Editor<\/strong>: <a href=\"https:\/\/www.microsoft.com\/en-us\/research\/people\/yuzheng\/\">Yu Zheng<\/a>,\u00a0<a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/itee.uq.edu.au\/~zxf\/\">Xiaofang Zhou<span class=\"sr-only\"> (opens in new tab)<\/span><\/a><\/p>\n<p><strong>Foreword<\/strong> by <a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/www.cs.uiuc.edu\/homes\/hanj\/\">Jiawei Han<span class=\"sr-only\"> (opens in new tab)<\/span><\/a><\/p>\n<p><strong>Editorial board<\/strong>: <a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/dna.fernuni-hagen.de\/gueting\/home.html\">Ralf Hartmut G\u00fcting<span class=\"sr-only\"> (opens in new tab)<\/span><\/a>, <a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/www.dbs.informatik.uni-muenchen.de\/cms\/Hans-Peter_Kriegel\">Hans-Peter Kriegel<span class=\"sr-only\"> (opens in new tab)<\/span><\/a>, <a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/www.cs.umd.edu\/~hjs\/\">Hanan Samet<span class=\"sr-only\"> (opens in new tab)<\/span><\/a><\/p>\n<p>[<a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/www.amazon.com\/Computing-Spatial-Trajectories-Yu-Zheng\/dp\/product-description\/1461416280\/ref=dp_proddesc_0?ie=UTF8&n=283155&s=books\">Order it on Amazon<span class=\"sr-only\"> (opens in new tab)<\/span><\/a>] [<a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/www.springer.com\/computer\/database+management+&+information+retrieval\/book\/978-1-4614-1628-9\">Buy it from Springer<span class=\"sr-only\"> (opens in new tab)<\/span><\/a>]<\/p>\n<p>[Preview this book (<a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2011\/11\/TrajectoryComputing_Preview.pdf\">Outline and Preface<\/a>)]<\/p>\n<p>&nbsp;<\/p>\n<p align=\"justify\">With the rapid development of wireless communication and mobile computing technologies and global positioning and navigational systems, spatial trajectory data has been mounting up, calling for systematic research and development of new computing technologies for storage, preprocessing, retrieving, and mining of trajectory data and exploring its broad applications. Thus, computing with spatial trajectories becomes an increasingly important research theme.<\/p>\n<p align=\"justify\">We chose 17 active researchers in the field of <i>computing<\/i><i> with<\/i><i> <\/i><i>spatial<\/i><i> trajector<\/i><i>ies<\/i> to contribute chapters to this book in their areas of expertise. These chapters are organized according to the paradigm of \u201ctrajectory preprocessing (<i>prior databases<\/i>)&#8211;><i> <\/i>trajectory indexing and retrieval (<i>in databases<\/i>) &#8211;><i>\u00a0<\/i><i>advanced topics<\/i> (<i>above databases<\/i>),\u201d as illustrated in the following Figure.<\/p>\n<p align=\"justify\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2016\/02\/trajectorycomputing-book_framework.jpg\" alt=\"\" width=\"601\" height=\"492\" \/><\/p>\n<p align=\"justify\">Specifically, the book gradually introduces the concepts and technologies for solving the problems that newcomers will be faced with when exploring this field, starting from the preprocessing and managing of spatial trajectories, then to mining uncertainty, privacy, and patterns of trajectories, and finally ending with some advanced applications based on spatial trajectories including activity recognition, driving, and location-based social networks.<\/p>\n<p align=\"justify\">\t<div data-wp-context='{\"items\":[]}' data-wp-interactive=\"msr\/accordion\">\n\t\t\t\t\t<div class=\"clearfix\">\n\t\t\t\t<div\n\t\t\t\t\tclass=\"btn-group align-items-center mb-g float-sm-right\"\n\t\t\t\t\tdata-bi-aN=\"accordion-collapse-controls\"\n\t\t\t\t>\n\t\t\t\t\t<button\n\t\t\t\t\t\tclass=\"btn btn-link m-0\"\n\t\t\t\t\t\tdata-bi-cN=\"Expand all\"\n\t\t\t\t\t\tdata-wp-bind--aria-controls=\"state.ariaControls\"\n\t\t\t\t\t\tdata-wp-bind--aria-expanded=\"state.ariaExpanded\"\n\t\t\t\t\t\tdata-wp-bind--disabled=\"state.isAllExpanded\"\n\t\t\t\t\t\tdata-wp-class--inactive=\"state.isAllExpanded\"\n\t\t\t\t\t\tdata-wp-on--click=\"actions.onExpandAll\"\n\t\t\t\t\t\ttype=\"button\"\n\t\t\t\t\t>\n\t\t\t\t\t\tExpand all\t\t\t\t\t<\/button>\n\t\t\t\t\t<span aria-hidden=\"true\"> | <\/span>\n\t\t\t\t\t<button\n\t\t\t\t\t\tclass=\"btn btn-link m-0\"\n\t\t\t\t\t\tdata-bi-cN=\"Collapse all\"\n\t\t\t\t\t\tdata-wp-bind--aria-controls=\"state.ariaControls\"\n\t\t\t\t\t\tdata-wp-bind--aria-expanded=\"state.ariaExpanded\"\n\t\t\t\t\t\tdata-wp-bind--disabled=\"state.isAllCollapsed\"\n\t\t\t\t\t\tdata-wp-class--inactive=\"state.isAllCollapsed\"\n\t\t\t\t\t\tdata-wp-on--click=\"actions.onCollapseAll\"\n\t\t\t\t\t\ttype=\"button\"\n\t\t\t\t\t>\n\t\t\t\t\t\tCollapse all\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t<ul class=\"msr-accordion\">\n\t\t\t\t\t\t\t align=\"justify\">\t<li class=\"m-0\" data-wp-context='{\"id\":\"accordion-content-2\"}' data-wp-init=\"callbacks.init\">\n\t\t<div class=\"accordion-header\">\n\t\t\t<button\n\t\t\t\taria-controls=\"accordion-content-2\"\n\t\t\t\tclass=\"btn btn-collapse\"\n\t\t\t\tdata-wp-bind--aria-expanded=\"state.isExpanded\"\n\t\t\t\tdata-wp-on--click=\"actions.onClick\"\n\t\t\t\tid=\"accordion-button-1\"\n\t\t\t\ttype=\"button\"\n\t\t\t>\n\t\t\t\tIntroduction \t\t\t<\/button>\n\t\t<\/div>\n\t\t<div\n\t\t\taria-labelledby=\"accordion-button-1\"\n\t\t\tclass=\"msr-accordion__content\"\n\t\t\tdata-wp-bind--inert=\"!state.isExpanded\"\n\t\t\tdata-wp-run=\"callbacks.run\"\n\t\t\tid=\"accordion-content-2\"\n\t\t>\n\t\t\t<div class=\"msr-accordion__body\">\n\t\t\t\t<h3><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2016\/02\/00-Introduction.pptx\">Slides<\/a><\/h3>\n<\/p>\n<p><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/people\/yuzheng\/\">Yu Zheng<\/a>, Microsoft Research Asia<\/p>\n<p><a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/itee.uq.edu.au\/~zxf\/\">Xiaofang Zhou<span class=\"sr-only\"> (opens in new tab)<\/span><\/a>, University of Queensland, Brisbane, Australia<\/p>\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/li>\n\t\t<li class=\"m-0\" data-wp-context='{\"id\":\"accordion-content-4\"}' data-wp-init=\"callbacks.init\">\n\t\t<div class=\"accordion-header\">\n\t\t\t<button\n\t\t\t\taria-controls=\"accordion-content-4\"\n\t\t\t\tclass=\"btn btn-collapse\"\n\t\t\t\tdata-wp-bind--aria-expanded=\"state.isExpanded\"\n\t\t\t\tdata-wp-on--click=\"actions.onClick\"\n\t\t\t\tid=\"accordion-button-3\"\n\t\t\t\ttype=\"button\"\n\t\t\t>\n\t\t\t\tChapter 1: Trajectory Preprocessing\t\t\t<\/button>\n\t\t<\/div>\n\t\t<div\n\t\t\taria-labelledby=\"accordion-button-3\"\n\t\t\tclass=\"msr-accordion__content\"\n\t\t\tdata-wp-bind--inert=\"!state.isExpanded\"\n\t\t\tdata-wp-run=\"callbacks.run\"\n\t\t\tid=\"accordion-content-4\"\n\t\t>\n\t\t\t<div class=\"msr-accordion__body\">\n\t\t\t\t<h3><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2011\/11\/01-Trajectory-Preprocessing.pptx\">Slides<\/a> | <a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2016\/02\/trajectorycomputing_Preview.pdf\">PDF<\/a><\/h3>\n<p><a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/www.cse.psu.edu\/~wlee\/\">Wang-Chien Lee<span class=\"sr-only\"> (opens in new tab)<\/span><\/a>, The Pennsylvania State University, USA<\/p>\n<p><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/people\/jckrumm\/\">John Krumm<\/a>, Microsoft Research, Redmond, WA, USA<\/p>\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/li>\n\t\t<li class=\"m-0\" data-wp-context='{\"id\":\"accordion-content-6\"}' data-wp-init=\"callbacks.init\">\n\t\t<div class=\"accordion-header\">\n\t\t\t<button\n\t\t\t\taria-controls=\"accordion-content-6\"\n\t\t\t\tclass=\"btn btn-collapse\"\n\t\t\t\tdata-wp-bind--aria-expanded=\"state.isExpanded\"\n\t\t\t\tdata-wp-on--click=\"actions.onClick\"\n\t\t\t\tid=\"accordion-button-5\"\n\t\t\t\ttype=\"button\"\n\t\t\t>\n\t\t\t\tChapter 2: Trajectory Indexing and Retrieval\t\t\t<\/button>\n\t\t<\/div>\n\t\t<div\n\t\t\taria-labelledby=\"accordion-button-5\"\n\t\t\tclass=\"msr-accordion__content\"\n\t\t\tdata-wp-bind--inert=\"!state.isExpanded\"\n\t\t\tdata-wp-run=\"callbacks.run\"\n\t\t\tid=\"accordion-content-6\"\n\t\t>\n\t\t\t<div class=\"msr-accordion__body\">\n\t\t\t\t<h3><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2011\/11\/02-Trajectory-Indexing-and-Retrieval.pptx\">Slides<\/a><\/h3>\n<p>Ke Deng, Kexin Xie, Kevin Zheng and <a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/itee.uq.edu.au\/~zxf\/\">Xiaofang Zhou<span class=\"sr-only\"> (opens in new tab)<\/span><\/a><\/p>\n<p>University of Queensland, Brisbane, Australia<\/p>\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/li>\n\t\t<li class=\"m-0\" data-wp-context='{\"id\":\"accordion-content-8\"}' data-wp-init=\"callbacks.init\">\n\t\t<div class=\"accordion-header\">\n\t\t\t<button\n\t\t\t\taria-controls=\"accordion-content-8\"\n\t\t\t\tclass=\"btn btn-collapse\"\n\t\t\t\tdata-wp-bind--aria-expanded=\"state.isExpanded\"\n\t\t\t\tdata-wp-on--click=\"actions.onClick\"\n\t\t\t\tid=\"accordion-button-7\"\n\t\t\t\ttype=\"button\"\n\t\t\t>\n\t\t\t\tChapter 3: Uncertainty in Spatial Trajectories\t\t\t<\/button>\n\t\t<\/div>\n\t\t<div\n\t\t\taria-labelledby=\"accordion-button-7\"\n\t\t\tclass=\"msr-accordion__content\"\n\t\t\tdata-wp-bind--inert=\"!state.isExpanded\"\n\t\t\tdata-wp-run=\"callbacks.run\"\n\t\t\tid=\"accordion-content-8\"\n\t\t>\n\t\t\t<div class=\"msr-accordion__body\">\n\t\t\t\t<h3><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2011\/11\/03-Trajectory-Uncertainty.ppt\">Slides<\/a><\/h3>\n<p><a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/users.eecs.northwestern.edu\/~goce\/\">Goce Trajcevski<span class=\"sr-only\"> (opens in new tab)<\/span><\/a>, Northwestern University, USA<\/p>\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/li>\n\t\t<li class=\"m-0\" data-wp-context='{\"id\":\"accordion-content-10\"}' data-wp-init=\"callbacks.init\">\n\t\t<div class=\"accordion-header\">\n\t\t\t<button\n\t\t\t\taria-controls=\"accordion-content-10\"\n\t\t\t\tclass=\"btn btn-collapse\"\n\t\t\t\tdata-wp-bind--aria-expanded=\"state.isExpanded\"\n\t\t\t\tdata-wp-on--click=\"actions.onClick\"\n\t\t\t\tid=\"accordion-button-9\"\n\t\t\t\ttype=\"button\"\n\t\t\t>\n\t\t\t\tChapter 4: Privacy of Spatial Trajectory\t\t\t<\/button>\n\t\t<\/div>\n\t\t<div\n\t\t\taria-labelledby=\"accordion-button-9\"\n\t\t\tclass=\"msr-accordion__content\"\n\t\t\tdata-wp-bind--inert=\"!state.isExpanded\"\n\t\t\tdata-wp-run=\"callbacks.run\"\n\t\t\tid=\"accordion-content-10\"\n\t\t>\n\t\t\t<div class=\"msr-accordion__body\">\n\t\t\t\t<h3><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2011\/11\/04-Trajectory-Privacy.pptx\">Slides<\/a><\/h3>\n<p><a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/www.cs.cityu.edu.hk\/~chiychow\/\">Chi-Yin Chow<span class=\"sr-only\"> (opens in new tab)<\/span><\/a>, City University of Hong Kong, China<\/p>\n<p><a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/www-users.cs.umn.edu\/~mokbel\/\">Mohamed F. Mokbel<span class=\"sr-only\"> (opens in new tab)<\/span><\/a>, University of Minnesota, USA<\/p>\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/li>\n\t\t<li class=\"m-0\" data-wp-context='{\"id\":\"accordion-content-12\"}' data-wp-init=\"callbacks.init\">\n\t\t<div class=\"accordion-header\">\n\t\t\t<button\n\t\t\t\taria-controls=\"accordion-content-12\"\n\t\t\t\tclass=\"btn btn-collapse\"\n\t\t\t\tdata-wp-bind--aria-expanded=\"state.isExpanded\"\n\t\t\t\tdata-wp-on--click=\"actions.onClick\"\n\t\t\t\tid=\"accordion-button-11\"\n\t\t\t\ttype=\"button\"\n\t\t\t>\n\t\t\t\tChapter 5: Trajectory Pattern Mining\t\t\t<\/button>\n\t\t<\/div>\n\t\t<div\n\t\t\taria-labelledby=\"accordion-button-11\"\n\t\t\tclass=\"msr-accordion__content\"\n\t\t\tdata-wp-bind--inert=\"!state.isExpanded\"\n\t\t\tdata-wp-run=\"callbacks.run\"\n\t\t\tid=\"accordion-content-12\"\n\t\t>\n\t\t\t<div class=\"msr-accordion__body\">\n\t\t\t\t<h3><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2011\/11\/05-Trajectory-Pattern-Mining.ppt\">Slides<\/a><\/h3>\n<p><a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/lca2srv30.epfl.ch\/jeung\/\">Hoyoung Jeung<span class=\"sr-only\"> (opens in new tab)<\/span><\/a>, Ecole Polytechnique F\u00b4ed\u00b4erale de Lausanne, Switzerland<\/p>\n<p><a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/www4.comp.polyu.edu.hk\/~csmlyiu\/\">Man Lung Yiu<span class=\"sr-only\"> (opens in new tab)<\/span><\/a>, Department of Computing, Hong Kong Polytechnic University, Hong Kong<\/p>\n<p><a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/cs.au.dk\/~csj\/\">Christian S. Jensen<span class=\"sr-only\"> (opens in new tab)<\/span><\/a>, Department of Computer Science, Aarhus University, Denmark<\/p>\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/li>\n\t\t<li class=\"m-0\" data-wp-context='{\"id\":\"accordion-content-14\"}' data-wp-init=\"callbacks.init\">\n\t\t<div class=\"accordion-header\">\n\t\t\t<button\n\t\t\t\taria-controls=\"accordion-content-14\"\n\t\t\t\tclass=\"btn btn-collapse\"\n\t\t\t\tdata-wp-bind--aria-expanded=\"state.isExpanded\"\n\t\t\t\tdata-wp-on--click=\"actions.onClick\"\n\t\t\t\tid=\"accordion-button-13\"\n\t\t\t\ttype=\"button\"\n\t\t\t>\n\t\t\t\tChapter 6: Activity Recognition Based on Trajectories\t\t\t<\/button>\n\t\t<\/div>\n\t\t<div\n\t\t\taria-labelledby=\"accordion-button-13\"\n\t\t\tclass=\"msr-accordion__content\"\n\t\t\tdata-wp-bind--inert=\"!state.isExpanded\"\n\t\t\tdata-wp-run=\"callbacks.run\"\n\t\t\tid=\"accordion-content-14\"\n\t\t>\n\t\t\t<div class=\"msr-accordion__body\">\n\t\t\t\t<h3><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2011\/11\/06-Activity-Recognition-from-Trajectory-Data.pptx\">Slides<\/a><\/h3>\n<p>Yin Zhu, Vincent Wenchen Zheng, <a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" rel=\"noopener noreferrer\" target=\"_blank\" href=\"http:\/\/www.cse.ust.hk\/~qyang\/\">Qiang Yang<span class=\"sr-only\"> (opens in new tab)<\/span><\/a><\/p>\n<p>Hong Kong University of Science and Technology, China<\/p>\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/li>\n\t\t<li class=\"m-0\" data-wp-context='{\"id\":\"accordion-content-16\"}' data-wp-init=\"callbacks.init\">\n\t\t<div class=\"accordion-header\">\n\t\t\t<button\n\t\t\t\taria-controls=\"accordion-content-16\"\n\t\t\t\tclass=\"btn btn-collapse\"\n\t\t\t\tdata-wp-bind--aria-expanded=\"state.isExpanded\"\n\t\t\t\tdata-wp-on--click=\"actions.onClick\"\n\t\t\t\tid=\"accordion-button-15\"\n\t\t\t\ttype=\"button\"\n\t\t\t>\n\t\t\t\tChapter 7: Trajectory Analysis for Driving\t\t\t<\/button>\n\t\t<\/div>\n\t\t<div\n\t\t\taria-labelledby=\"accordion-button-15\"\n\t\t\tclass=\"msr-accordion__content\"\n\t\t\tdata-wp-bind--inert=\"!state.isExpanded\"\n\t\t\tdata-wp-run=\"callbacks.run\"\n\t\t\tid=\"accordion-content-16\"\n\t\t>\n\t\t\t<div class=\"msr-accordion__body\">\n\t\t\t\t<h3><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2011\/11\/07-Trajectory-Analysis-for-Driving.pptx\">Slides<\/a><\/h3>\n<p><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/people\/jckrumm\/\">John Krumm<\/a>,\u00a0Microsoft Research, Redmond, WA, USA<\/p>\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/li>\n\t\t<li class=\"m-0\" data-wp-context='{\"id\":\"accordion-content-18\"}' data-wp-init=\"callbacks.init\">\n\t\t<div class=\"accordion-header\">\n\t\t\t<button\n\t\t\t\taria-controls=\"accordion-content-18\"\n\t\t\t\tclass=\"btn btn-collapse\"\n\t\t\t\tdata-wp-bind--aria-expanded=\"state.isExpanded\"\n\t\t\t\tdata-wp-on--click=\"actions.onClick\"\n\t\t\t\tid=\"accordion-button-17\"\n\t\t\t\ttype=\"button\"\n\t\t\t>\n\t\t\t\tChapter 8: Location-Based Social Networks - Users\t\t\t<\/button>\n\t\t<\/div>\n\t\t<div\n\t\t\taria-labelledby=\"accordion-button-17\"\n\t\t\tclass=\"msr-accordion__content\"\n\t\t\tdata-wp-bind--inert=\"!state.isExpanded\"\n\t\t\tdata-wp-run=\"callbacks.run\"\n\t\t\tid=\"accordion-content-18\"\n\t\t>\n\t\t\t<div class=\"msr-accordion__body\">\n\t\t\t\t<h3><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2011\/11\/08-and-09-Location-Based-Social-Network-1.pptx\">Slides<\/a>\u00a0| <a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2016\/02\/trajectorycomputing-lbsn-chapter8.pdf\" target=\"_self\">PDF<\/a><\/h3>\n<p><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/people\/yuzheng\/\">Yu Zheng<\/a>, Microsoft Research Asia, China<\/p>\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/li>\n\t\t<li class=\"m-0\" data-wp-context='{\"id\":\"accordion-content-20\"}' data-wp-init=\"callbacks.init\">\n\t\t<div class=\"accordion-header\">\n\t\t\t<button\n\t\t\t\taria-controls=\"accordion-content-20\"\n\t\t\t\tclass=\"btn btn-collapse\"\n\t\t\t\tdata-wp-bind--aria-expanded=\"state.isExpanded\"\n\t\t\t\tdata-wp-on--click=\"actions.onClick\"\n\t\t\t\tid=\"accordion-button-19\"\n\t\t\t\ttype=\"button\"\n\t\t\t>\n\t\t\t\tChapter 9: Location-Based Social Networks - Locations\t\t\t<\/button>\n\t\t<\/div>\n\t\t<div\n\t\t\taria-labelledby=\"accordion-button-19\"\n\t\t\tclass=\"msr-accordion__content\"\n\t\t\tdata-wp-bind--inert=\"!state.isExpanded\"\n\t\t\tdata-wp-run=\"callbacks.run\"\n\t\t\tid=\"accordion-content-20\"\n\t\t>\n\t\t\t<div class=\"msr-accordion__body\">\n\t\t\t\t<h3><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2011\/11\/08-and-09-Location-Based-Social-Network-1.pptx\">Slides<\/a>\u00a0| <a href=\"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2016\/02\/trajectorycomputing-lbsn-chapter9.pdf\" target=\"_self\">PDF<\/a><\/h3>\n<p><a href=\"https:\/\/www.microsoft.com\/en-us\/research\/people\/yuzheng\/\">Yu Zheng<\/a>, <a href=\"https:\/\/www.microsoft.com\/en-us\/research\/people\/xingx\/\">Xing Xie<\/a>, Microsoft Research Asia, China<\/p>\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t<\/div>\n\t<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Editor: Yu Zheng,\u00a0Xiaofang Zhou Foreword by Jiawei Han Editorial board: Ralf Hartmut G\u00fcting, Hans-Peter Kriegel, Hanan Samet [Order it on Amazon] [Buy it from Springer] [Preview this book (Outline and Preface)] &nbsp; With the rapid development of wireless communication and mobile computing technologies and global positioning and navigational systems, spatial trajectory data has been mounting [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","footnotes":""},"research-area":[13556,13555],"msr-locale":[268875],"msr-impact-theme":[],"msr-pillar":[],"class_list":["post-170845","msr-project","type-msr-project","status-publish","hentry","msr-research-area-artificial-intelligence","msr-research-area-search-information-retrieval","msr-locale-en_us","msr-archive-status-active"],"msr_project_start":"2011-11-16","related-publications":[162006,333044,333041,243527,168066,166731,166189,165884,163788,163787,162898,162522,162505,162007,156224,161748,161563,161297,161208,160491,160122,160121,159126,159125,159101,157564,157038,156572],"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\/170845","targetHints":{"allow":["GET"]}}],"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":1,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-project\/170845\/revisions"}],"predecessor-version":[{"id":248069,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-project\/170845\/revisions\/248069"}],"wp:attachment":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/media?parent=170845"}],"wp:term":[{"taxonomy":"msr-research-area","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/research-area?post=170845"},{"taxonomy":"msr-locale","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-locale?post=170845"},{"taxonomy":"msr-impact-theme","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-impact-theme?post=170845"},{"taxonomy":"msr-pillar","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-pillar?post=170845"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}