دانلود رایگان مقاله لاتین اثر انگشت برای محلی سازی داخلی از سایت الزویر
عنوان فارسی مقاله:
کاهش مجموعه اثر انگشت برای محلی سازی داخلی
عنوان انگلیسی مقاله:
Reducing fingerprint collection for indoor localization
سال انتشار : 2016
برای دانلود رایگان مقاله اثر انگشت برای محلی سازی داخلی اینجا کلیک نمایید.
مقدمه انگلیسی مقاله:
1. Introduction
Numerous indoor localization systems are based on wireless local area networks (WLANs), which are ubiquitously deployed in public places [2]. The localization techniques underlying these systems can be generally classified into two categories: deterministic [3–5] and probabilistic [6,7]. In these systems, one has to measure received signal strength indicator (RSSI) values from surrounding access points (APs) at each reference location to construct a fingerprint database, which is a tedious and time-consuming process. For example, in our experiments, it takes 10 h for us to collect the fingerprint data of an office area of 1000 m2. This problem seriously affects the application of indoor localization systems. In order to reduce the cost, several approaches [8,9] have been proposed. However, these approaches only attempt to reduce the number of reference points at which fingerprints are collected. At each point, the same amount of time still needs to be spent on collecting a stable RSSI result as in the naive approach. In this article, we focus on reducing fingerprint measurements in both the time and space domains, and recovering the absent data faithfully. The main challenge is to keep a small localization error while recovering the absent data. Intuitively, we can consider the simple interpolation approach, such as the K-Nearest Neighbors (KNN) method. However, the relation between an absent data point and its neighbors is not easy to identify. Moreover, if a large number of data points are missed, the KNN method will perform poorly because a point may not be able to find enough neighbors in range for proper estimation.
برای دانلود رایگان مقاله اثر انگشت برای محلی سازی داخلی اینجا کلیک نمایید.
کلمات کلیدی:
Using Compressive Sensing to Reduce Fingerprint Collection for ... ieeexplore.ieee.org/iel7/6548699/6554525/06555310.pdf by Y Zhang - 2013 - Cited by 8 - Related articles Using Compressive Sensing to Reduce Fingerprint. Collection for Indoor Localization. Yuexing Zhang, Ying Zhu, Mingming Lu, Ai Chen. Shenzhen Institutes of ... Your browser's 'fingerprints' and how to reduce them | Digital Safety akademie.dw.de/digitalsafety/your-browsers-fingerprints-and-how-to-reduce-them/ Nov 26, 2013 - Browser fingerprinting of computers, smartphones and tablets has been around since at least 2009. The method works by collecting information ... A Location Fingerprint Framework Towards Efficient Wireless Indoor ... https://books.google.com/books?isbn=1109054211 Nattapong Swangmuang - 2008 We provided an example of a design guideline which will be useful for reducing the effort of fingerprint collection during the offline phase. B. FUTURE ... Search Rank Facts - Page 33 - Google Books Result https://books.google.com/books?isbn=0974952931 2005 A fingerprint generation operation 360 may be used, for each document, to process ... Reducing the size of the collection of document fingerprints 365 without ... [PDF]Briefcase: Fingerprinting to Reduce Risky Borrowing https://www.povertyactionlab.org/publication/fingerprinting-reduce-risky-borrowing loans to creditworthy applicants, reducing the costs and risks of lending? ... farmers harvested the paprika crop and sold it to CP at predefined collection points. Experts Recommend Measures to Reduce Human Error in Fingerprint ... https://www.nist.gov/.../experts-recommend-measures-reduce-human-error-fingerprin... Feb 21, 2012 - The study by a working group of 34 experts recommends a series of improvements to significantly reduce or eliminate the errors, based on the ...
