The Study Of POI Abbreviations Dictionary In The Filed Of Location Search

In the growing information-based society, the hope to access information from the computer has been more and more strongly, especially the access to life information. People have a strong desire to search for the information what they are closely related to by natural language expressions. Local search is a technology to help people achieve the life of information retrieval, which may be retrieved, such as catering, entertainment, financial institutions, tourist attractions, landmark buildings, gas stations and even parking information. This technology greatly enriches people's lives, so that people can get large information on the life of information.The current local search technology is a major search that was referred to as POI information. POI (point of interest) as the entire geographic point of interest, as the name suggests, is an interesting point. Each of the different distribution of all the POI on the map coordinates of different points; while the local search based on user input task is to retrieve the statement may be exported out of the POI. In order to meet the needs of users, it is necessary to extract the various technical means retrieval rate of accuracy.However, because stored in a database of POI geographic point of interest for the general information, the full name, title longer than normal, and users enter a query language, and sometimes reluctant to use the full name of enquiries. One will normally select the keyword query, or may use the information point for the acronyms. For the keyword query, is now a better way to achieve, but it does powerless ly sometimes for acronyms. Because a lot of names and acronyms of the POI it referred to the relationship between the existence of complex.An effective approach is the existence of these complex relationships and the name of acronyms and it referred to the POI posed by the acronyms relationship between the structures into acronyms. This task in local search, users can first determine whether the query is a form of expression of acronyms.This article first discuss POI information at briefings, and other resources for the acquisition, then introduced the relevant market conditions immediately, and with Condition Random Field model through the display of models to the named entities such resources to identify, extract the final will be the naming of these entities and POI information points pattern matching, from the end of these resources extracted from abbreviations of information. Experiments show that through this method to extract the abbreviations have very good results, and have a good practical significance. Can be extracted through such a mechanism to expand the abbreviations of the vocabulary of acronyms, such words and ultimately improve the accuracy of local search.