An authoritative treatment of urban computing, offering an overview of the field, fundamental techniques, advanced models, and novel applications.
Urban computing brings powerful computational techniques to bear on such urban challenges as pollution, energy consumption, and traffic congestion. Using today's large-scale computing infrastructure and data gathered from sensing technologies, urban computing combines computer science with urban planning, transportation, environmental science, sociology, and other areas of urban studies, tackling specific problems with concrete methodologies in a data-centric computing framework. This authoritative treatment of urban computing offers an overview of the field, fundamental techniques, advanced models, and novel applications.
Each chapter acts as a tutorial that introduces readers to an important aspect of urban computing, with references to relevant research. The book outlines key concepts, sources of data, and typical applications; describes four paradigms of urban sensing in sensor-centric and human-centric categories; introduces data management for spatial and spatio-temporal data, from basic indexing and retrieval algorithms to cloud computing platforms; and covers beginning and advanced topics in mining knowledge from urban big data, beginning with fundamental data mining algorithms and progressing to advanced machine learning techniques. Urban Computing provides students, researchers, and application developers with an essential handbook to an evolving interdisciplinary field.

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吕后年迈，宫中的权力逐渐被其侄儿吕禄和朱虚侯刘章把控，刘章借刘恒之手除掉了吕禄，欲自立为帝。漪房和刘恒适时进京，两方势力均衡，刘章在大殿拔剑要刘恒在江山和美人之间抉择，刘恒毫不犹豫地选择了漪房。孰不知漪房早已打听到刘章与其妻吕鱼感情深厚，早就秘密将吕鱼挟持，终于赶走了刘章夫妇。公元前180年，刘恒称帝，窦漪房在经历了重重磨难之后终于成为椒房殿新一代的女主人。
一进宫，漪房就四处寻找好姐妹慎儿，结果在民间将其找到，慎儿见漪房不仅活着，而且成为皇后，心中十分嫉妒。就在这个时候，薄姬对漪房当年的身份产生怀疑，漪房为了保住身边所有人的性命，咬牙硬是不承认，刘恒对她的欺骗感到失望，夫妻俩产生隔阂，慎儿趁虚而入，成为刘恒的夫人，从此姐妹夫妻之情，只能流于表面。
不久慎儿产下儿子刘武，跟漪房之子刘启成为皇位的竞争对手。为了满足私欲，慎儿不断地出招陷害，漪房无法坐视，开始反击，一步步地将慎儿引入她的圈套，最终将她逼到绝境，慎儿求刘恒保她，刘恒不为所动，到了这一刻慎儿才发现，自己不过是他们夫妻和解的一个纽扣，刘恒根本就没有爱过自己。漪房将刘武抱到身边，许诺会一生对他好，慎儿为了儿子，喝下毒酒死去，这一次漪房没有流泪，她觉得她一生的泪都在慎儿背叛的那一刻流光了，她猛地倒在了地上，醒来时，视线已经看不清楚了。
幸而刘恒回来了，他还是深深地爱着她，为她做拐杖，为她废后官，为她做尽了一切一切，他告诉她，一辈子都不相问，漪房这才发现他们已经错过了好多年好多年。