Understanding the asymmetric perceptions of smartphone security from security feature perspective: A comparative study

Smartphones are being used and relied on by people more than ever before. The open connectivity brings with it great convenience and leads to a variety of risks that cannot be overlooked. Smartphone vendors, security policy designers, and security application providers have put a variety of practical efforts to secure smartphones, and researchers have conducted extensive research on threat sources, security techniques, and user security behaviors. Regrettably, smartphone users do not pay enough attention to mobile security, making many efforts futile. This study identifies this gap between technology affordance and user requirements, and attempts to investigate the asymmetric perceptions toward security features between developers and users, between users and users, as well as between different security features. These asymmetric perceptions include perceptions of quality, perceptions of importance, and perceptions of satisfaction. After scoping the range of smartphone security features, this study conducts an improved Kano-based method and exhaustively analyzes the 245 collected samples using correspondence analysis and importance satisfaction analysis. The 14 security features of the smartphone are divided into four Kano quality types and the perceived quality differences between developers and users are compared. Correspondence analysis is utilized to capture the relationship between the perceived importance of security features across different groups of respondents, and results of importance-satisfaction analysis provide the basis for the developmental path and resource reallocation strategy of security features. This article offers new insights for researchers as well as practitioners of smartphone security.     

安卓平台上的医用图像信息采集系统的开发设计

为了探讨在安卓平台上构建医用图像采集系统的开发个案,分析通过以智能手机、平板电脑为核心安卓设备通过拍照获得化验单数据后进行文本识别并提交智慧医疗系统的解决方案。本文首先通过二值化算法形成低阈值图像数据,使用卷积神经元网络算法对文本进行逐一识别,使用K-means算法对识别后的单字文本进行字段记录值的整合并形成元数据库服务于其他智慧医疗系统模块。在使用9000组数据对神经元网络进行前期训练的前提下,该系统的识别准确率达到了99.5%以上。本系统具有一定的可行性,对未来智慧医疗的系统开发有实践意义。     

基于Android的智能家居控制系统的设计研究

随着科学技术的发展，各种电器和家具控制的智能化是目前市场流行起来。人们生活水平的不断提高使人们对生活的质量有了一定的要求。在人们的日常生活中，家用电器是不可缺少的生活用品，如何快捷方便的对这些电器进行管理，使我们需要进行研究的任务。智能家居控制系统的出现为人们的生活带来了便利，也逐渐的改变和影响着人们的生活方式。本文就基于Android的智能家居控制系统的设计进行分析和研究。     

基于ESP8266的无线温度采集系统设计

文章设计了基于ESP8266的无线温度采集系统,主要针对温度采集系统的硬件系统和软件设计进行探讨和研究,重点研究了以CC2530单片机为控制芯片,以ESP8266-WiFi为无线通信芯片,把采集的温度数据进行无线发送。同时还研究了Android端的Socket通信,用于采集显示温度值。此系统具有方便、低功耗、距离远、设计简单等特点。     

基于Android平台的路径日记系统开发与设计

随着世界信息产业和通讯设备制造产业的迅猛发展,手机已经成为人们日常生活中不可缺少的一部分。智能手机日益趋向于移动智能综合服务平台方向的发展。可以预想在未来的世界,手机将为人们提供移动办公、信息分享和获取、电子支付、游戏娱乐等等的服务,而地图导航就是其中一个非常重要的应用服务。     

基于ANDROID的相册应用

近几年,Android手机系统应用越来越广泛,随之Android应用程序急剧增加,呈现出指数增长的态势。然而随着这些应用程序基数大了,软件质量也是良莠不齐,各类不同质量规模的应用都涌向了Android应用市场,充斥在各类Android应用商店中。文章通过介绍设计一个基于Android的相册的高质量应用,阐述了Android activity、图片编辑、图片布局等相关知识,尤其对相册开发过程、开发技术原理以及软件效果作了详细的介绍,同时将设计过程中所用到的主要方法及控件进行了详细说明,具有一定的参考价值和较强的实用性。     

A lightweight approach to component-level exception mechanism for robust android apps

Recent researches have reported that Android programs are vulnerable to unexpected exceptions. One reason is that the current design of Android platform solely depends on Java exception mechanism, which is unaware of the component-based structure of Android programs. This paper proposes a component-level exception mechanism for programmers to build robust Android programs with. With the mechanism, they can define an intra-component handler for each component to recover from exceptions, and they can propagate uncaught exceptions to caller component along the reverse of component activation flow. Theoretically, we have formalized an Android semantics with exceptions to prove the robustness property of the mechanism. In practice, we have implemented the mechanism with a domain-specific library that extends existing Android components. This lightweight approach does not demand the change of the Android platform. In our experiment with Android benchmark programs, the library is found to catch a number of runtime exceptions that would otherwise get the programs terminated abnormally. We also measure the overhead of using the library to show that it is very small. Our proposal is a new mechanism for defending Android programs from unexpected exceptions.     

Android图形图像处理技术的研究综述

随着以4G技术为代表的移动互联网时代的飞速发展,使得移动终端更加智能化,Android系统正成为全球最受欢迎的移动终端应用平台之一。图形图像处理是Android系统中最为重要的技术之一,文章主要介绍2D绘图和动画的特效处理技术。     

基于Android平台利用表格布局制作简易计算器界面

Android程序设计中,有6大布局方法。文章重点论述了基于Android平台利用表格布局来制作一个简易的计算器界面,涉及详细的操作步骤,对计算器界面进行有效美化和优化,并做出总结。