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Fingerprint matching is adopted by a large family of indoor localization schemes, where collecting fingerprints is inevitable but all consuming. Recent studies show that the crowdsourcing scheme could be utilized to perform fingerprints collecting with desirable performance price ratio; however, since the fingerprints are collected from various mobile devices with crowdsourcing, it is difficult to...
In typical indoor position system employing location fingerprints model, received signal strength indications (RSSI) from a set of Wi-Fi access points are used as an unique fingerprint to identify a specific position. This type position systems need abundant Wi-Fi fingerprints, generally implemented by trained experts, which extends labor costs and restricts heir promotion. In his paper, a novel approach...
For typical indoor positioning systems employing a training/positioning model based on Wi-Fi fingerprints, significant training costs extremely restrict this kind of indoor localization system to be widely deployed and implemented with real location based applications. In this paper, we present a crowd-based approach to solve this problem, which automatically collects and constructs fingerprints database...
In recent years, great improvements took place in smartphone industry. Along with the development of cloud services and web applications, lots of developers also take great effort on developing smartphone applications. Among various applications related to social networks, LBS (Location Based Service) is the key technique which is the basic for social interactive activities. While GPS (global positioning...
In order to improve the flight safety and establish a better environment for aircraft maintenance, we design a remote fault diagnosis system of aircraft. The system is based on .NET framework and latest aircraft fault diagnosis technologies. Under a hierarchical design conception, it is divided into three parts: onboard aircraft diagnosis system, ground diagnosis centre and remote expert client. The...
When Web mining is applied in the real world of an e-commerce site it is perhaps axiomatic that the first thing to be done is to use a specific language to collect raw data and analyse that data by using those Web-mining techniques. It is therefore perhaps important to be able to understand the role and use of server-side languages and its relation with online database servers. Several server-side...
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