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okitworks

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unitjava: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú, лл£¬ÁíÇë¿´http://emuch.net/bbs/viewthread.php?tid=4296788 2012-03-30 11:21:05
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Data of the Internet of Things, comparing with normal data,  are always appearing as mass, distributed, time-correlated and location-correlated. Their sources are diverse. The Node resources are limited.
These characteristics brought plenty of  problems of concentrated data mining.
For requirement of real-time processing of mass data from the Internet of Things, the proposal of centralized structure utilization would demand high ability of  hardware central node(nodes?).

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½ÚµãµÄ×ÊÔ´ÊÇÓÐÏ޵ġ£½«Êý¾Ý·ÅÔÚÖÐÐĽڵãµÄ²ßÂÔûÓÐÓÅ»¯°º¹ó×ÊÔ´´«Êä¡£ÔÚ´ó¶àÊýÇé¿öÏ£¬ÖÐÐĽڵ㲻ÐèÒªËùÓеÄÊý¾Ý£¬µ«ÊÇÐèÒª¹À¼ÆÒ»Ð©²ÎÊý¡£ËùÒÔ¿ÉÒÔÔÚ·Ö²¼Ê½½ÚµãÖÐÔ¤´¦ÀíԭʼÊý¾Ý£¬ÔÙ½«±ØÒªÐÅÏ¢´«Ë͸ø½ÓÊÕÕß¡£
However, considering data safety, data privacy, fault-tolerance, commercial competition, legal restraint and other aspects, it is infeasible to centralize all related data as a strategy.
The Node resources are limited. The strategy do not optimize costly data transmission. In most cases, the central node does(the central nodes do) not need all data, but a few parameters are required to be estimated. Therefore, original data could be pre-processed at distributed nodes, after which necessary infomations could be transmitted to receivers.
2Â¥2012-03-30 10:22:00
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benmao_mogu

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unitjava: ½ð±Ò+15, ·­ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú, лл£¬ÁíÇë¿´http://emuch.net/bbs/viewthread.php?tid=4320076 2012-03-30 11:20:16
Compare with common data, The data in Internet of things are always massive, distributive, time-relating and location- relating, also, the sources of data are distinctive and the resources of the joint are limited.
all of the features above bring in numerous problems about central data mining.
the enormous numbers in the internet of things need a real-time processing. So a pretty high demand will be needed if central construction is adopted.
Therefore, it is not a viable strategy to put all the relevant data together considering some aspects on data like, safety, privacy fault-tolerance, commercial competition, restriction of law and others.
The resources of the panel joints are limited. It doesn¡¯t optimize the transition of the expensive resources to lay all the data on the central joint.  In most cases, the central joint doesn¡¯t need all the data, but need to estimate some parameters, therefore, we can preprocess the original data in the distributive joint, then send necessary information to receivers.
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3Â¥2012-03-30 10:27:39
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