A method and system for identifying key personnel through personnel behavior trajectories
A technology of personnel and key points, which is applied in the field of identifying key personnel and systems through personnel behavior trajectories, can solve the problems of no longer applicable recognition algorithms and single scenarios, and achieve the effect of wide recognition range and high recognition accuracy
Active Publication Date: 2019-09-17
山东合天智汇信息技术有限公司
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Problems solved by technology
[0003] However, the current personnel classification methods are either limited and can only be applied to a single scene, such as only identifying a single type of office workers or drug dealers, or they are time-sensitive. The recognition algorithm is no longer applicable
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[0043] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0044] Such as figure 1 As shown, a method for identifying the type of personnel through the trajectory of personnel behavior includes the following steps:
[0045] 1. Collect a large amount of personnel behavior trajectory data, and establish a key personnel trajectory information set and a non-key personnel trajectory information set.
[0046] 2. Feature extraction of key personnel
[0047] Take the food delivery staff as an example. The food delivery staff has obvious behavioral characteristics. During the meal time, they run between restaurants and communities, restaurants and office areas. In the delivery area, its trajectory tends to be consistent over a long period of time.
[0048] Extract feature information such as place and time in these behavior trajectory information as TOKEN strings, and count the number of occurrences and word frequenc...
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The invention discloses a method and system for identifying key personnel through personnel behavior tracks; collecting behavior track data of key personnel and non-key personnel, establishing a track information set of key personnel and a track information set of non-key personnel; Feature extraction is carried out with the information of the trajectory information set of non-key personnel; from the trajectory information set of key personnel and the trajectory information of non-key personnel, the position feature and time feature in each person's behavior track information are extracted, and the position feature and time feature are used as the TOKEN string, And count the number of occurrences and word frequency of the extracted TOKEN string; establish a dynamic model; calculate each hash table TOKEN string t i Appearance probability; use the trajectory characteristics of the sample personnel for learning and training, and calculate the probability of the sample personnel being the key personnel; establish a new table; estimate the possibility of the new personnel being the key personnel according to the establishment of the hash table.
Description
technical field [0001] The invention relates to a method and system for identifying key personnel through personnel behavior tracks. Background technique [0002] With the support of the increasingly rapid development of information technology, the use of information technology to control key personnel such as criminals and fugitives has become an important research direction of public security organs. During the daily activities of key personnel, the data information of various behavior records generated records the action trajectory and direction of key personnel. Therefore, it is particularly important to use the dynamic trajectory of personnel to analyze the types of key personnel and improve the research and judgment efficiency of public security intelligence personnel. [0003] However, the current personnel classification methods are either limited and can only be applied to a single scene, such as only identifying a single type of office worker or drug dealer, or th...
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IPC IPC(8): G06K9/62
CPCG06F18/211G06F18/2155
Inventor 陈浩王可鑫段文良
Owner 山东合天智汇信息技术有限公司