scholarly journals Visualizing Pathway on 3D Maps for an Interactive User Navigation in Mobile Devices

2019 ◽  
pp. 237-260
Author(s):  
Teddy Mantoro ◽  
Media Anugerah Ayu ◽  
Adamu Ibrahim
Keyword(s):  
Mobile Devices ◽  
Delaunay Triangulation ◽  
Target Location ◽  
Image Plane ◽  
Optimal Route ◽  
Dynamic Target ◽  
Signal Accuracy ◽  
Small Screen ◽  
Interactive User ◽  
User Navigation

3D maps have become an essential tool for navigation aid. The aim of a navigation aid is to provide an optimal route from the current position to the destination. Unfortunately, most mobile devices' GPS signal accuracy and the display of pathways on 3D maps in the small screen of mobile devices affects the pathway architectural from generating accurate initial positions to destinations. This chapter proposed a technique for visualizing pathway on 3D maps for an interactive user navigation aid in mobile devices. This technique provides visualization of 3D maps in virtual 3D workspace environments which assists a user to navigate to a target location. The Bi-A* path-finding algorithm was used for establishing dynamic target location in Voronoi diagram/Delaunay triangulation. This approach could navigate more than two users in a 3D walk-space and at the same time showing their whereabouts on 3D projections mapped. The map shows the users' location in the scene to navigate from source to the target and the target also moves to the source to meet on the same physical location and image plane.

3D Maps in Mobile Devices

2013 ◽  
Vol 5 (3) ◽  
pp. 88-106 ◽  
Author(s):  
Teddy Mantoro ◽  
Adamu I. Abubakar ◽  
Media A. Ayu
Keyword(s):  
Functional Analysis ◽  
Mobile Devices ◽  
Architectural Design ◽  
Optimal Route ◽  
Current Position ◽  
Reasonable Degree ◽  
Interactive Navigation ◽  
Signal Accuracy ◽  
Small Screen

Pathway analysis provided by current 3D maps in mobile devices that are intended for an interactive navigation aid, is simulated for what-if experiments against task and functional analysis, based on the problems faced from both technical and user-practices views. The aim of a navigation aid, in general, is to provide an optimal route from the current position to the destination. Unfortunately, the problem of most mobile device’s GPS signal accuracy and the display of pathways on 3D maps in the small screen of mobile devices affects the pathway architectural design from generating accurate initial positions to destinations. This paper presents both conceptual and experimental analysis of pathway determination designed for 3D maps in mobile devices for an interactive navigation aid, which is going to be added to an existing individual cognitive map. The analytical outcomes are aimed at providing how environmental conditions come to be detected and how problems are resolved in helping people to navigate in unfamiliar locations by having positions and paths corrected to a reasonable degree of accuracy in order to overcome the problems of generating in-accurate locations and the weaknesses of conventional 2D maps, which requires users to interpret its various symbols and legends. Bent functions and fuzzy logic type 2 are used for simulating signal deviations from the precise values and Voronoi diagram/Delaunay triangulation are used for establishing experimental paths and locations. Finally, this technique will contribute to a well-defined positioning and pathway establishment of 3D maps in mobile devices for navigation aid.

Impact of Applying Aggregate Query Processing in Mobile Commerce

2012 ◽  
Vol 8 (2) ◽  
pp. 1-17
Author(s):  
Say Ying Lim ◽  
Siew Fan Wong
Keyword(s):  
Query Processing ◽  
Mobile Devices ◽  
Communication Cost ◽  
Single Server ◽  
Distributed Environments ◽  
Mobile Environments ◽  
Memory Consumption ◽  
Screen Size ◽  
Aggregate Query ◽  
Small Screen

With the increased usage of mobile devices, society is seeing more and more users doing transactions wirelessly. Often, data from a single server may not be sufficient. Rather, data may need to be manipulated and to be gathered from multiple remote servers before useful information can be formed. Mobile transactions are constrained by small screen size of mobile devices, high communication cost, and high memory consumption. Existing techniques from traditional query processing in distributed environments cannot be directly applied to mobile environments. In this paper, the authors propose techniques for processing mobile queries that address the issue of high memory consumption. A set of walkthrough examples was provided and performances of various techniques were examined. The results show that the technique of first downloading primary keys only from one server and then sending a query to the second server using these primary keys before processing for qualified match in the second server gives the best performance.

Mobile GIS - Challenges and Solutions

2011 ◽  
pp. 793-809
Author(s):  
Pramod Sharma ◽  
Devon Nugent
Keyword(s):  
Wireless Networks ◽  
Mobile Devices ◽  
Location Based Services ◽  
Specific Information ◽  
Positioning Accuracy ◽  
Mobile Gis ◽  
Gis Applications ◽  
Potential Market ◽  
Small Screen Devices ◽  
Small Screen

This chapter focuses on Mobile GIS (MGIS), which uses wireless networks and small screen mobile devices (such as PDAs and smartphones) to collect or deliver real time, location specific information and services. Such services can be divided into field and consumer (location based services) GIS applications. The use of wireless networks and small screen devices, introduce a series of challenges, not faced by desktop or wired internet GIS applications. This chapter discusses the challenges faced by mobile GIS (e.g. small screen, bandwidth, positioning accuracy, interoperability, etc.) and the various means of overcoming these problems, including the rapid advances in relevant technologies. Despite the challenges, many efficient and effective Mobile GIS applications have been developed, offering a glimpse of the potential market.

scholarly journals Attitude of the Rudjer Boškovic Institute’s scientists to the small screen mobile devices library services

2014 ◽  
Vol 32 (4) ◽  
pp. 628-644 ◽  
Author(s):  
Ivana Pažur
Keyword(s):  
Mobile Devices ◽  
Web Sites ◽  
Web Site ◽  
Content Type ◽  
Phone Calls ◽  
Education Data ◽  
Library Resources ◽  
Resource Service ◽  
Insight Into ◽  
Small Screen

Purpose – The purpose of this paper is to get an insight in users’ opinion on library resources/services on small screen mobile devices. Objectives were to establish which types of small screen mobile devices are used and to find out is there a tendency for using academic and educational contents on such devices. Furthermore, aim was to identify whether the users need mobile friendly library web site and services at all. Also, what library resources/services and to what extent respondents consider as the important ones for mobile friendly customization. Finally the results would serve as an orientation in building mobile friendly library web site and services. The author believed that the users were still unaware of the possibility of accessing library web sites and services through mobile devices in general; therefore, this survey also had a role of raising awareness and stimulating their interest. Design/methodology/approach – The survey was focussed on small screen mobile devices with screen size up to seven inches (17.1 cm). Data collection was performed through a questionnaire containing ten questions. The questionnaire was created by LimeSurvey tool, and for mobile optimized version SurveyMonkey.com service was used too. The authors received 295 questionnaires, out of which 285 were taken into account. Findings – The survey found that the largest number of respondents own smartphone/tablet/phablet. The results show that small screen devices are, to some extent, used for educational, academic and informational purposes (reading of e-books and e-journals, education, data checking, internet searching and searching of handy information), but non-academic purposes still predominate (texting, reading e-mails, phone calls, taking pictures). Overall 64 percent of the respondents has expressed need for small screen mobile devices customized library resources/services, but there are 30 percent of undecided respondents. Croatian Scientific Bibliography, e-journals database (EZB), online databases, contact information and lecture halls reservations, has been resources/services requested by respondents to be available in a mobile friendly mode. Originality/value – The survey examines users’ opinion on a new library service before its implementation. Besides giving us a precise insight into the Rudjer Bošković Institute library users’ interest and needs for mobile friendly customization of existing library resource/service, survey gives a unique insight into the correlation of age and gender of the respondents and their answers to the question about having a small screen mobile device and opinion about the customization of library resources and services. To the author’s knowledge, this is the first users’ survey on this topic in Croatia.

Interactive Personalized Catalogue for M-Commerce

2008 ◽  
pp. 218-228
Author(s):  
Sheng-Uei Guan ◽  
Yuan Sherng Tay
Keyword(s):  
Mobile Devices ◽  
Mobile Device ◽  
Recommender System ◽  
User Interfaces ◽  
Personal Digital Assistant ◽  
User Preference ◽  
Screen Size ◽  
Size Constraints ◽  
Small Form Factor ◽  
Small Screen

M-commerce possesses two distinctive characteristics that distinguish it from traditional e-commerce: the mobile setting and the small form factor of mobile devices. Of these, the size of a mobile device will remain largely unchanged due to the tradeoff between size and portability. Small screen size and limited input capabilities pose a great challenge for developers to conceptualize user interfaces that have good usability while working within the size constraints of the device. In response to the limited screen size of mobile devices, there has been unspoken consensus that certain tools must be made available to aid users in coping with the relatively large volume of information. Recommender systems have been proposed to narrow down choices before presenting them to the user (Feldman, 2000). We propose a product catalogue where browsing is directed by an integrated recommender system. The recommender system is to take incremental feedback in return for browsing assistance. Product appearance in the catalogue will be dynamically determined at runtime based on user preference detected by the recommender system. The design of our hybrid m-commerce catalogue recommender system investigated the typical constraints of m-commerce applications to conceptualize a suitable catalogue interface. The scope was restricted to the case of having personal digital assistant (PDA) as the mobile device. Thereafter, a preference detection technique was developed to serve as the recommender layer of the system.

The small screen [TV to mobile devices]

IEE Review ◽  
2003 ◽  
Vol 49 (10) ◽  
pp. 38-41 ◽  
Author(s):  
D. Lenton
Keyword(s):  
Mobile Devices ◽  
Small Screen

A Taxonomy of Database Operations on Mobile Devices

2009 ◽  
pp. 1235-1256 ◽  
Author(s):  
Say Ying Lim ◽  
David Tainar ◽  
Bala Srinivasan
Keyword(s):  
Mobile Devices ◽  
Extensive Study ◽  
Post Processing ◽  
Crucial Aspect ◽  
Mobile Environment ◽  
Mobile Location ◽  
Processing Data ◽  
Set Operations ◽  
Database Operations ◽  
Small Screen

In this chapter, we present an extensive study of database operations on mobile devices which provides an understanding and direction for processing data locally on mobile devices. Generally, it is not efficient to download everything from the remote databases and display on a small screen. Also in a mobile environment, where users move when issuing queries to the servers, location has become a crucial aspect. Our taxonomy of database operations on mobile devices mainly consists of on-mobile join operations and onmobile location dependent operations. For the on-mobile join operation, we include pre- and post-processing whereas for on-mobile location dependent operations, we focus on set operations arise from location-dependent queries.

A Taxonomy of Database Operations on Mobile Devices

2010 ◽  
pp. 829-849
Author(s):  
Say Ying Lim
Keyword(s):  
Mobile Devices ◽  
Extensive Study ◽  
Post Processing ◽  
Crucial Aspect ◽  
Mobile Environment ◽  
Mobile Location ◽  
Processing Data ◽  
Set Operations ◽  
Database Operations ◽  
Small Screen

In this chapter, we present an extensive study of database operations on mobile devices which provides an understanding and direction for processing data locally on mobile devices. Generally, it is not efficient to download everything from the remote databases and display on a small screen. Also in a mobile environment, where users move when issuing queries to the servers, location has become a crucial aspect. Our taxonomy of database operations on mobile devices mainly consists of on-mobile join operations and on-mobile location dependent operations. For the on-mobile join operation, we include pre- and post-processing whereas for on-mobile location dependent operations, we focus on set operations arise from location-dependent queries.

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