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Navigation System of Exploratory-running

Author: XinWei
Tutor: GongBin；TianZuo
School: Shandong University
Course: Software Engineering
Keywords: Recommendation Systems Browsing User Interface Location-aware System Ubiquitous Computing Navigation System Time-Slot
CLC: TN965
Type: Master's thesis
Year: 2009
Downloads: 1
Quote: 0
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Abstract


This thesis sets up a Quality-of-Satisfaction -driven exploratory-walk navigation system which enables users to find an interesting spot to visit, walk with guidance, and enjoy without any verbal input of desire.Currently, navigation systems are installed on mobile devices and becoming widely used. Navigation systems are systems that support users to find, visit, and enjoy spending a time at a specific shop, restaurant, and any specific locations that users are interested in. And recently, a navigation system for pedestrian has been a hot topic in both research communities and the industrial market.In this thesis, we focus on pedestrians using navigation systems and introduce a new category of users called "exploratory-walk user". Users will be categorized into two types: Purposive-walk users whom have an explicit verbal desire and exploratory-walk users whom do not have a verbal desire but has highly abstracted potential desire to do "something". Unfortunately, exploratory-walk users cannot use existing services because existing services require users’ verbal purpose at the entrance of the system and also the choices are not purposed to the users in an appropriate style.We invent a navigation system designed for exploratory-walk user .Called "E-Walk Navi". It only requires a length of time-slot and a need of return at the entrance of the system to enable exploratory-walk users to browse choices without a verbal purpose input. It provides a large number of choices to the user efficiently using highly brows-able Surface Browsing User Interface, relevance based choice sorting, and history based re-sorting. It gives a non-dropped choice to the user to avoid accidentally cutting off the user’s needs via a user interface because the user’s needs are ambiguous and complicated to predict. And the large number of choices will be purposed to the user via a Surface Browsing User Interface with high brows-ability which covers the risk of oversight caused by dilution and avoids overwhelming the user. Then, It sorts choices in order of relevance based on time, spot attribute, and transition probability to decrease the mean cost of discovery and searching from choices. In addition, it re-sorts choices based on the user’s history to avoid redundant recommendation such as repeating recommendation of restaurants. We implemented a prototype of it, and demonstrated the needs and effectiveness of the system by evaluating the system from two perspectives: user’s Quality-of-Satisfaction and system usability.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio navigation > Navigation equipment, navigation station
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