“互联网+”背景下传统券商APP理财模块设计分析

随着传统券商的移动互联网化和面临的财富管理转型现状,针对券商APP理财板块的设计研究,可以帮助券商提升用户在购买理财产品的体验,提高用户满意度减少因使用体验导致的用户流失。文章通过对传统券商APP理财板块的现有问题进行分析,通过研究用户常用方法了解用户的需求及APP使用体验的问题,并根据调研结果指出APP改进用户体验的设计方向,得出初步的设计策略。     

高校移动校园APP的设计与分析

校园数字化环境中,学生已经普遍使用智能手机,使得APP客户端被广泛利用并快速发展起来.随着高校的数字化建设大范围展开,校园APP的设计成为了重点研究课题.本文针对高校移动校园APP的设计与分析进行研究.     

新闻类APP设计存在的问题和解决办法

在移动互联网时代,传统媒体与新媒体的融合正在加速,新闻类APP的设计直接影响到用户的数量和黏度,进而影响传播信息和引导舆论的效果本文根据对国内主流新闻类APP的观察和使用,归纳总结了新闻类APP设计存在的问题、解决办法和设计时需要注意的要素,希望能对国内新闻类APP的发展提供参考     

高职学生实习单位双语使用情况调查研究——以江海学院为例

本研究从高职英语的培养目标出发,调查研究了高职学生实习单位双语使用情况,主要是是使用英语的情况,旨在了解高职学生英语能力与市场需求之间存在的关系,从而给高职英语教改提出了一些建议。研究结果表明学生在实习岗位上使用英语的频率不是很高但有使用英语的需求;学生目前所学的英语知识可以应对目前的岗位,但要面对更高的要求就显得知识匮乏;在英语听说读写技能中,高职的学生还应加大听说的培养,尤其是与实际生活和岗位相关的听说训练。     

小学英语教育理论与移动学习资源设计和应用的有效结合

随着科技的进步,移动教育在教育教学中得到了广泛的应用并取得了巨大的成就,目前我国英语教学普遍存在着重单词、短语练习,轻听说读练习的现象,很多学生无法用英语进行交流,基于此,本位设计了适合小学生使用移动学习工具进行英语学习的模式。     

智能手机APP界面设计探讨

手机APP的UI设计要考虑到程序与用户之间的交互性、可靠性,还要考虑到用户使用软件的快捷性和便利性,要让用户在使用软件时有一种审美的愉悦.快捷便利的实用原则和极简主义的审美原则是手机UI设计的基本原则.     

基于手持终端的移动物流APP设计与研究

移动物流APP考虑到使用用户人群的特殊性,在设计时需要考虑使用的便捷性,因此从各个可能操作的界面出发,设计相关的操作界面。文中认为,一款覆盖提供运输计划、运输管理、GPS跟踪等服务的APP是行之有效的,货车司机可以利用APP随时随地与平台互动,对运输计划和运输任务进行管理和跟踪。平台也可以通过APP了解各个端点的位置信息,对运输任务进行追踪控制,同时也可以完成对货车司机的相关管理功能。     

Android平台下基于动态加载的点餐APP的设计与实现

本文描述了一种基于动态菜单数据加载的点餐APP的设计和实现方法,提出了和服务器端的交互xml规则,并提出了使用多线程及缓存的优化方案,使得点餐APP的Ul既有丰富的表现力,又保证了系统基础数据的关联性和交互性.     

基于Moodle大学英语视听说网络课程研究

随着技术强化的语言学习成为新的应用领域,Moodle平台在语言教学上的使用越来越广泛。金华职业技术学院的英语听说课程教学改革运用了该平台,整合优化资源,对学生进行了英语视听说训练。发现基于Moodle平台的英语听说交互式教学,明显优于传统英语教,提高教学效率和效果且在实现英语视听说任务型教学模式和培养学生的自主学习策略方面都起到了积极的推进作用     

论政务APP的设计与应用——以中国香港和加拿大政府官方APP为例

目前,智能移动终端和3G网络已经普及,4G业务也开始正式投入商用,APP逐渐成为人们获取信息的主要方式之一,政务APP已经在多个国家投入应用.了解政务APP的作用和类型,借鉴其他国家和地区的经验,有效设计和应用政务APP,有利于增进政府与民众的互动交流,提高政府的服务效率和民众满意度.本文通过介绍中国香港和加拿大政府的有代表性的政务APP,探讨政务APP设计与应用的注意事项,使政务APP更好地发挥引导舆论,服务大众的作用.     

Implementation of APP decoders on dual code trellis

For high rate k/n convolutional codes (k/n > 0.5), a trellis based implementation of a posteriori probability (APP) decoders is less complex on the dual code trellis owing to its branch complexity (2^n-k ) being lower than the code trellis (2^k). The log scheme used for APP decoders is not attractive for practical implementation owing to heavy quantisation requirements. As an alternative, presented is an arc hyperbolic tangent (AHT) scheme for implementing the dual- APP decoder. The trellis based implementation of this AHT dual APP decoder is discussed and some fundamental differences between primal APP and dual APP decoders that have an effect on a quantised implementation are reported.     

LDPC码译码算法及性能分析

为了进一步降低低密度奇偶校验(LDPC)码译码算法的复杂度,基于经典置信传播(BP)译码算法,给出了对数域迭代后验概率对数似然比(APP LLR)算法。通过概率域的和积算法(SPA)和对数域的迭代APP LLR算法的性能仿真及分析可见,迭代APP LLR算法能以较小的性能损失换取复杂度的大幅降低。进一步选用迭代APP LLR算法,结合不同地形条件下的VHF频段信道模型,仿真了LDPC码编译码系统的性能。理论分析及仿真结果均表明,基于迭代APP LLR算法的LDPC码,实现简单,性能优异,具有良好的工程应用前景。     

基于资源签名的Android应用相似性快速检测方法

由于盗版Android应用（Android Application,简称APP）通常保持着与正版APP相似的用户体验,因此本文提出一种基于资源签名的APP相似性快速检测方法.该方法将APP的资源签名视为字符串集合,利用计算任意一对APP资源签名集合的Jaccard系数判断两者的相似性.为了避免遍历全部的APP对,该方法将MinHash和LSH（Locality Sensitive Hashing）算法的思路引入其中,通过从APP集合中挑选候选对并对候选对进行检验的方式获得最终的检测结果.由于挑选候选对的方式将大量相似性较低的APP对排除在外,因此该方法可以明显地提高APP相似性的检测速度.实验结果表明,该方法的检测速度比现有方法FSquaDRA提高了大约30倍,而检测结果与FSquaDRA几乎完全相同.     

An adaptive p-persistent MAC scheme for multimedia WLAN

The letter proposes an adaptive p-persistent-based (APP) medium access control (MAC) scheme for the IEEE 802.11e distributed WLAN supporting multimedia services. The APP MAC scheme adaptively gives differentiated permission probabilities to transmission stations which are in different access category and with various waiting delay. Simulation results show that the APP MAC scheme can improve the performance of multimedia WLAN, such as small voice packet dropping probability, low delay variation, and high system throughput, compared to conventional MAC algorithms     

基于层次分析法的高校餐饮外卖APP评价研究

随着互联网的快速发展,网络已经成为现代人日常生活中不可或缺的部分。网上订餐由于其独有的便捷性,更能够轻而易举地被现代人接受。互联网上诞生的便捷订餐形式,也是电子商务应用的全新体现;从侧面来看,网上订餐也在帮助加速电子商务的应用。在高校,餐饮外卖APP的应用越来越普遍,对在校学生餐饮外卖APP的选取评价具有实际意义。文章构建了外卖APP的评价指标体系,应用层次分析法对目前市场中份额占比多的3家餐饮外卖APP—饿了么、美团外卖、百度外卖进行评价。     

Iterative joint source-channel decoding of variable-length codes using residual source redundancy

We present a novel symbol-based soft-input a posteriori probability (APP) decoder for packetized variable-length encoded source indexes transmitted over wireless channels where the residual redundancy after source encoding is exploited for error protection. In combination with a mean-square or maximum APP estimation of the reconstructed source data, the whole decoding process is close to optimal. Furthermore, solutions for the proposed APP decoder with reduced complexity are discussed and compared to the near-optimal solution. When, in addition, channel codes are employed for protecting the variable-length encoded data, an iterative source-channel decoder can be obtained in the same way as for serially concatenated codes, where the proposed APP source decoder then represents one of the two constituent decoders. The simulation results show that this iterative decoding technique leads to substantial error protection for variable-length encoded correlated source signals, especially, when they are transmitted over highly corrupted channels.     

移动图书馆APP应用的探讨

随着信息技术的迅速发展和移动设备的广泛普及,越来越多的图书馆开通了移动图书馆服务,移动图书馆APP的推广与应用也相应增加。分析了当前我国移动图书馆APP的应用现状,指出存在的问题,并提出建立通用移动图书馆APP系统的建议。     

Low-complexity iterative decoding with decision-aided equalizationfor magnetic recording channels

Turbo codes are applied to magnetic recoding channels by treating the channel as a rate-one convolutional code that requires a soft a posteriori probability (APP) detector for channel inputs. The complexity of conventional APP detectors, such as the BCJR algorithm or the soft-output Viterbi algorithm (SOVA), grows exponentially with the channel memory length. This paper derives a new APP module for binary intersymbol interference (ISI) channels based on minimum mean squared error (MMSE) decision-aided equalization (DAE), whose complexity grows linearly with the channel memory length, and it shows that the MMSE DAE is also optimal by the maximum a posteriori probability (MAP) criterion. The performance of the DAE is analyzed, and an implementable turbo-DAE structure is proposed. The reduction of channel APP detection complexity reaches 95% for a five-tap ISI channel when the DAE is applied. Simulations performed on partial response channels show close to optimum performance for this turbo-DAE structure. Error propagation of the DAE is also studied, and two fixed-delay solutions are proposed based on combining the DAE with the BCJR algorithm     

Piecewise linear detection for direct superposition modulation

Considering high-order digital modulation schemes, the bottleneck in consumer products is the detector rather than the modulator. The complexity of the optimal a posteriori probability (APP) detector increases exponentially with respect to the number of modulated bits per data symbol. Thus, it is necessary to develop low-complexity detection algorithms with an APP-like performance, especially when performing iterative detection, for example in conjunction with bit interleaved coded modulation. We show that a special case of superposition modulation, dubbed Direct Superposition Modulation (DSM), is particularly suitable for complexity reduction at the receiver side. As opposed to square QAM, DSM achieves capacity without active signal shaping. The main contribution is a low-cost detection algorithm for DSM, which enables iterative detection by taking a priori information into account. This algorithm exploits the approximate piecewise linear behavior of the soft outputs of an APP detector over the entire range of detector input values. A theoretical analysis and simulation results demonstrate that at least max-log APP performance can be reached, while the complexity is significantly reduced compared to classical APP detection.