The small screen [TV to mobile devices]

IEE Review ◽  
2003 ◽  
Vol 49 (10) ◽  
pp. 38-41 ◽  
Author(s):  
D. Lenton
Keyword(s):  
Author(s):  
Say Ying Lim ◽  
Siew Fan Wong

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.


Author(s):  
Pramod Sharma ◽  
Devon Nugent

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.


2014 ◽  
Vol 32 (4) ◽  
pp. 628-644 ◽  
Author(s):  
Ivana Pažur

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.


Author(s):  
Sheng-Uei Guan ◽  
Yuan Sherng Tay

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.


2009 ◽  
pp. 1235-1256 ◽  
Author(s):  
Say Ying Lim ◽  
David Tainar ◽  
Bala Srinivasan

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.


Author(s):  
Say Ying Lim

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.


Author(s):  
L. E. Moser ◽  
P. M. Melliar-Smith

Speech recognition and synthesis technology has advanced to the point where the use of voice input and output is now feasible for Web-based applications over the Internet. This article describes applications, standards, and architectures for a speech-enabled Web, or SpeechWeb. The ready availability of mobile devices, such as cell phones and PDAs with wireless access to the Internet but without a conventional desktop keyboard, mouse, and large display, make voice input and output very compelling. Voice input and output for small screen/ keyboard devices, and for hands-/eyes-free situations, is essential to enable the user’s interaction with the device and to make it more user friendly.


Author(s):  
Say Ying Lim ◽  
David Taniar ◽  
Bala Srinivasan

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.


2017 ◽  
Vol 36 (2) ◽  
pp. 251-260 ◽  
Author(s):  
Jamie S. Naylor ◽  
Christopher A. Sanchez

Previous research has suggested that differences in the size of extremely large displays can change how individuals perceive and react to the displayed content. However, are such effects also observed on small screen devices (i.e., smartphones)? Participants read a news article on either a small or a large smartphone display and rated their attitudes toward the material before and after reading. Results indicated that although participants remembered information equally well across the different smartphone displays, the larger smartphone display did produce a larger change in attitude toward the material. These results suggest that characteristics of smartphone design can impact perceptions of the content being viewed, fundamentally changing how one views some information that has been gathered on these mobile devices.


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