445,959 research outputs found

    TIP spatial index: efficient access to digital libraries in a context-aware mobile system

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    We present a framework for efficient, uniform, location-based access to digital library collections that are external to a context-aware mobile information system. Using a tourist Information system, we utilize a spatial index to manage the context of location. We show how access to resources from within and outside of the tourist information system can be carried out in a seamless manner. We show how the spatial index can be navigated to continually provide information to the user. An empirical evaluation of the navigation strategy versus traditional spatial searching shows that navigation is efficient and outperforms traditional spatial search. In conclusion, our work provides a strategy for context-aware mobile systems to co-operate with digital libraries in a seamless and efficient manner

    MEASURING INDIVIDUAL SEARCH COSTS ON THE MOBILE INTERNET

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    The advent of smartphones enables more and more consumers to use the mobile internet. In addition, there is a continuing integration of location-based services (LBS). By means of Global Positioning Systems or WiFi-triangulation LBS provide context-aware information to consumers. This leads to a convergence of online and offline worlds. The usage of LBS delivers additional information to consumers (e.g., alternative offers or detailed product information). Particularly during the search process, information about prices or geographic distances, that are relevant for the purchase, are of importance. The goal of this study is to estimate search costs in a mobile internet context. We first illustrate the relevant literature on search theory (online/offline, mobile/desktop) and consumer behavior. Then we estimate search costs via a choice-based conjoint analysis for a large representative online sample. Our empirical results show that mobile search and LBS have a significant impact on consumer behavior. We quantify search costs in monetary units on an individual level by using geographic distance as a trade-off for price. We find that consumers trade off one extra minute of travel to another store with an average price reduction of 0.87

    Consumer Search Behavior on the Mobile Internet: An Empirical Analysis

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    The increasing diffusion of smartphones and tablet computers has facilitated access to product information by providing Internet access anywhere and at any time. As a result, consumers are increasingly using the mobile Internet to search for product information to help them in their purchase decisions. However, there is very little documentation of how, where and when consumers actually carry out such search. Using location-based data from a leading European product information and barcode-scanning app that contains more than 80 million observations, this study provides insights using actual consumer search behavior. The results show that consumer search on the mobile Internet is not bound to store opening hours and is likely to happen to a large extent as ongoing search during consumption. Furthermore, consumers’ geographic mobility is positively correlated and previous search experience is negatively correlated with their search intensity. Finally, access to more types of information via search results, especially product related information, reduces further search on price information, suggesting that product information content can lower price sensitivity.http://deepblue.lib.umich.edu/bitstream/2027.42/111728/1/1275_Manchanda.pd

    Virtual Location-Based Services: Merging the Physical and Virtual World

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    Location-based services gained much popularity through providing users with helpful information with respect to their current location. The search and recommendation of nearby locations or places, and the navigation to a specific location are some of the most prominent location-based services. As a recent trend, virtual location-based services consider webpages or sites associated with a location as 'virtual locations' that online users can visit in spite of not being physically present at the location. The presence of links between virtual locations and the corresponding physical locations (e.g., geo-location information of a restaurant linked to its website), allows for novel types of services and applications which constitute virtual location-based services (VLBS). The quality and potential benefits of such services largely depends on the existence of websites referring to physical locations. In this paper, we investigate the usefulness of linking virtual and physical locations. For this, we analyze the presence and distribution of virtual locations, i.e., websites referring to places, for two Irish cities. Using simulated tracks based on a user movement model, we investigate how mobile users move through the Web as virtual space. Our results show that virtual locations are omnipresent in urban areas, and that the situation that a user is close to even several such locations at any time is rather the normal case instead of the exception

    Sistem Informasi Geografis (SIG) Pemetaan Baliho dan Billboard di Kota Bengkulu (CV. Tunggal Abadi) Berbasis Android

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    Abstract— This Geographic Information System can be employed by users using Android-based mobile devices so that they can provide roles and functions to consumers in the form of information related to the installation location of billboards and billboards managed by CV. Tunggal Abadiand its search menu.This application is created using the Best First Search algorithm. The results of this study indicate that the Best First Search Algorithm can be applied in tracing the location of the installation of billboards and billboards for CV. Tanggal Abadi.The resulting application can provide convenience in rinsing the location for installing billboards and billboards for CV. Tunggal Abadi and can be used on the Android platform and based on tests carried out by distributing questionnaires to 10 respondents. Viewing from the results of the average answers, respondents who reached 53% answered strongly agree, 26% agree, 14% disagree, and 14% disagree. So from the results of data processing, it can be concluded that this system is feasible to use. Keyword: Geogiaphic Information System, Best First Search Algorithm, CV. Tanggal Abad

    Pengembangan Aplikasi Android Pada UKM Basket Universitas Diponegoro

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    Until now, Diponegoro University has become one of the most favored State University for High School students to proceed their study. So far, there hasn't been any information system for basketball student organization in Diponegoro University such as mobile device application that provides information, field location, and reminder for the basketball practice. Based on this concern, an application for the information system must be made on Android Operation System. Design of mobile information system for basketball student organization in Diponegoro University based android, a client server application created by using theJava, PHP, jQuery and MySQL for database. The intake of latitude and longitude coordinate will utilize the GPS feature on the mobile device and will be displayed on Google Maps API. JSON will collect the data of schedules into the mobile device, continued to recieve dialog alert and broadcast reciever for the alarm feature. The result of this design is realization of a application that able to search location of a basketball field based on android system, equipped with features that can help user to find the field and alarm to remind them of practice time. This design is also used to introduce android application developers using the Global Positioning System functions for user navigation

    CONTENT BASED INFORMATION RETRIEVAL FOR DIGITAL LIBRARY USING DOCUMENT IMAGE

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    In the recent year, the using of mobile devices has perceive an emerging need for improving the user experience of digital library for search, with various applications such as education, location search and product retrieval, There simply compare the query to the databases images; those are match that images are retrieve from the database, searching and response time of delivery staying a challenging issues in mobile document search previously lots of work has been done on search engine, retrieving the document from the database without analyzed the image. In The proposed method, Information retrieval for image based query automatically with a mobile document information retrieval framework, consisting of a FP-growth is proposed finding frequent pattern from the retrieve document to optimize the result
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