06082120杨沫毕业设计（论文）基于协同过滤技术的在线交友系统.doc

大 连 民 族 学 院 本 科 毕 业 设 计（论 文） 遗传算法在入学分配问题中的应用 学 院（系）： 计算机科学与工程学院 专 业： 计算机科学与技术 学 生 姓 名： 关博文 学 号： 2007031304 指 导 教 师： 李笑牛 评 阅 教 师： 完 成 日 期： 大连民族学院 摘 要 遗传算法是一类借鉴生物界的进化规律（适者生存，优胜劣汰遗传机制）演化而来的随机化有哪些信誉好的足球投注网站方法。它是由美国的J.Holland教授1975年首先提出，其主要特点是直接对结构对象进行操作，不存在求导和函数连续性的限定；具有内在的隐并行性和更好的全局寻优能力；采用概率化的寻优方法，能自动获取和指导优化的有哪些信誉好的足球投注网站空间，自适应地调整有哪些信誉好的足球投注网站方向，不需要确定的规则。遗传算法的这些性质，已被人们广泛地应用于组合优化、机器学习、信号处理、自适应控制和人工生命等领域。它是现代有关智能计算中的关键技术。An online friends system based on Collaborativ filtering Abstract Today Internet has permeated into everyday learning, living and working in all aspects, more and more people issue and gain the information on the Internet every day.Today, technology is constantly evolving.Modern communications by computer has become indispensable tool around us.We live in an era of knowledge with each passing day, challenging all the time. The rapid development of technology, knowledge and innovative society, Enhance the friendship between the students and promote understanding between friends by new communications is required by the times. Therefore, to establish a realistic, simple and quick, easy to grasp the information system is necessary. Through this online friends system can easily browse their own or their friends details.After membership registration, you can easily add, modify, delete data, photographs,logs and other information, membership can also make leave message to friend’s logs. The system uses JSP as the development language, MySQL as the database server, Tomcat as a test server. Achieved memberships register, login,personal log management, leave message between memberships each other,background manager’s rights and a series of function. System to capture the most unusual circumstances, has better fault tolerance, to withstand the pressure of large numbers of users browsing at the same time.This website has the advantages of small consumption,hight efficiency,good saf