Research Of Managemet And Control Strategy For Navigation Data Of Company B Based On Big Data Analysis

With the rapid increase of POI data and development about the collection and update methods of navigation data in big data era,the storage capacity of traditional car factory navigation software can't support the tens of millions of POI data.Based on statistical analysis of big data,the POI elements in the vehicle navigation data have been deleted and managed,which are controlled at 9 million.In addition,a long-term POI filtering scheme is formulated which can automatically filter and select to ensure that the POI data grows within a controllable range in future.We use the statistical methods to delete POI data of the company NI depended on structured analysis in the study.By analyzing the NI's POI data structure model,we constructed the related attribute knowledge base.Based on the needed category knowledge base of the company B and the knowledge base of needed category and classification control scheme,we also deleted and tested the data both of the 15Q1 and 15Q2 versions and adjusted the knowledge used the tuning method adjusts to achieve the best results.Compared with the numbers of POI before,the deletion both of the 15Q1 and 15Q2 versions can display the effect of the current POI Managemet and Control strategy(including the test plan and the formal plan)in all directions,which includes statistics in the product library according to the defined area range,and statistics by POI large classification within each area.The percentage of deletion in each region has increased from the 15Q1 to 15Q2 cut-off ratio change,but the change range is within 1%.The POI deletion ratio both of the two versions of data is maintained at a stable level which confirms the correctness and rationality of the Managemet and Control Strategy.At the same time,we have also analysis the high-frequency data and the deletion data in the search log of Sogou mobile phone,which evaluate the implementation of the current POI deletion scheme will not have a significant negative impact on the user's retrieval experience,aimed at providing decision support for the identification and improvement of POI Managemet and Control Strategy from another perspective.