基于手机信令的城市道路交通状态实时预测

为准确、实时预测道路交通状态，通过分析影响交通的因素，利用决策树算法对速度和环境因素等数据进行建模，确定交通拥堵发生的规则，在此基础上结合实时的移动用户和环境因素数据对交通状态进行预测。以中国河北保定城区为例进行实验，验证了该方法的有效性。同时，研究发现，基于决策树算法进行道路交通状态预测的方法具有较好的扩展性。     

阵列处理器中改进几乎空白子帧算法的并行化实现

两层异构网络中出现的小区间干扰协调是当前异构网络干扰问题研究的热点。针对软件实现增强小区调度几乎空白子帧(ABS)的干扰方案存在处理数据量大、速度慢的缺点，基于可重构阵列结构提出了一种动态ABS干扰协调的并行化硬件实现方案。该算法在增强小区内根据用户数动态分配ABS比例，以改善小区边缘用户的信道容量，通过流水线的方式使用多个轻核处理元(PE)实现并行计算以提高运算效率。测试结果表明，使用12个PE同时调度实现算法的映射，运行1 983个周期，其性能比单个PE提升77.03%，该算法的并行计算能力得到显著提升，宏基站用户的吞吐量可以达到4.76 Mbit/s。     

Developing a children's rights approach to fundraising with children in primary schools and the ethics of cultivating philanthropic citizenship

Fundraising literature predominantly focuses on adult donors, with limited literature addressing younger donors, particularly children, and virtually no discussion on the normative ethics which inform fundraising with children. Addressing this gap, this article examines the ethical dilemmas posed by the mainstreaming of charity fundraising in primary schools. Regardless of high levels of participation, research with primary school pupils shows that children's engagement in fundraising activities is often passive, with little decision making afforded to children. First, we question the ethics of passively engaging children in the fundraising relationship. Second, we question the role of fundraising more broadly in helping to cultivate children's philanthropic citizenship, suggesting that current fundraising mechanisms in schools are counter-intuitive to fostering long-term philanthropic engagement. We argue that by critically engaging children in the process of giving, children develop a deeper understanding of the cause areas that matter to them, which cultivates a longer-term commitment to philanthropy. This is potentially a different goal than that of many organisations involving schools in fundraising, where the focus is on incentivising transactional fundraising efforts aiming to raise as much money as possible and thus raises particular ethical challenges which must be considered. In this paper we draw on previous research and established frameworks for understanding philanthropic behaviour to explore the ethical challenges of fundraising with children in schools and present a pathway towards a more child-led, children's rights approach to fundraising in primary schools.