发明申请
- 专利标题: Parsing location histories
- 专利标题(中): 解析位置历史
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申请号: US10968861申请日: 2004-10-19
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公开(公告)号: US20060101377A1公开(公告)日: 2006-05-11
- 发明人: Kentaro Toyama , Ramaswamy Hariharan , Ross Cutler , John Douceur , Nuria Oliver , Eric Ringger , Daniel Robbins , Matthew Uyttendaele
- 申请人: Kentaro Toyama , Ramaswamy Hariharan , Ross Cutler , John Douceur , Nuria Oliver , Eric Ringger , Daniel Robbins , Matthew Uyttendaele
- 申请人地址: US WA Redmond
- 专利权人: Microsoft Corporation
- 当前专利权人: Microsoft Corporation
- 当前专利权人地址: US WA Redmond
- 主分类号: G06F9/44
- IPC分类号: G06F9/44 ; G06F12/14 ; G06F17/21 ; G06F12/16 ; G06F12/00 ; G06F17/24
摘要:
A location history is a collection of locations over time for an object. A stay is a single instance of an object spending some time in one place, and a destination is any place where one or more objects have experienced a stay. Location histories are parsed using stays and destinations. In a described implementation, each location of a location history is recorded as a spatial position and a corresponding time at which the spatial position is acquired. Stays are extracted from a location history by analyzing locations thereof with regard to a temporal threshold and a spatial threshold. Specifically, two or more locations are considered a stay if they exceed a minimum stay duration and are within a maximum roaming distance. Each stay includes a location, a starting time, and an ending time. Destinations are produced from the extracted stays using a clustering operation and a predetermined scaling factor.
公开/授权文献
- US07868786B2 Parsing location histories 公开/授权日:2011-01-11
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