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1.
随着网络信息数量的迅猛增长,“信息过载”、“信息超载”现象引起了人们的重视。信息过滤技术就是为了克服上述现象,减少用户在获得信息过程中的负担,向用户提供数量适宜、质量优良的信息。本文主要介绍了信息过滤的三种方式,重点研究了基于内容分析的信息过滤技术。并且给出了一个信息过滤技术的具体应用实例,说明了系统的设计思想、关键技术和具体实现。  相似文献   

2.
随着网络信息数量的迅猛增长,“信息过载“、“信息超载“现象引起了人们的重视.信息过滤技术就是为了克服上述现象,减少用户在获得信息过程中的负担,向用户提供数量适宜、质量优良的信息.本文主要介绍了信息过滤的三种方式,重点研究了基于内容分析的信息过滤技术.并且给出了一个信息过滤技术的具体应用实例,说明了系统的设计思想、关键技术和具体实现.  相似文献   

3.
分析了信息检索和信息过滤的搜索过程,前者是在静态信息源中搜索用户短期的特定信息需求的过程;后者是在动态信息源中搜索用户长期的特定信息需求的过程。通过对信息需求与信息源关系图的分析,可以采用整合信息检索技术和信息过滤技术的方法,也可以在信息检索技术和信息过滤技术的基础上,研究新的信息搜索技术,来实现在动态信息源中搜索用户短期的特定信息需求。  相似文献   

4.
“过滤气泡”现象在大数据推荐算法的助力下充斥于各大网络平台,它的产生及蔓延既有技术发展这个先决条件,也有网络平台和用户追捧这样的市场基础。文章从先决条件、动力基础、现实因素等三个方面分析了“过滤气泡”的成因,认为“过滤气泡”会导致大学生缺乏主动思考能力和创新意识、造成思想固化、对主流价值观理解不透彻等不良影响产生,并提出加强对用户数据隐私保护、提升大学生信息判断能力、增强主流价值观网络传播效能等措施,以期在大学生价值观形成的关键时期给予学生积极正面的引导,使其透过“泡泡”去认知和审视真实的世界。  相似文献   

5.
针对用户爱好、兴趣的不同,信息过滤技术能够为用户提供个性化的信息服务,实现着对信息空间与用户之间的有效连接.本文对信息网络中的信患过滤技术进行了探究,以促使信息过滤技术的运用和发展.  相似文献   

6.
近日Napster公司宣布将采用Relatable公司的 “数字指纹技术”过滤其服务中的版权音乐 。 二家公司希望把这种被称作TRM或“This Recognizes Music”的技术布置在Napster当前的 版权音乐过滤系统和将于今年夏季与贝塔斯曼集团联合推出的商业性音乐下载服务中。 尽管Napster也曾采取了一些诸如识别音乐或艺术家名字的技术性措施来过滤版权音乐 ,但用户可以很容易地通过修改文件名等手段绕过这些措施,技术专家和唱片界认为,Naps ter采取的这些措施“太陈旧”了。采用TRM技术后,用户将不再能够轻易地绕过Napster的 版权音乐过滤系统。  相似文献   

7.
论述了网络信息过滤的原理,从用户的信息需求与表示、文本的表示技术等方面探讨了网络信息过滤的方法和技术以及存在的问题,提出Vague集之间的相似度量在网络信息过滤中的应用。  相似文献   

8.
为提升高职院校图书馆信息系统的个性化服务水平,优化知识管理,在传统OPAC平台基础上增加了读者兴趣模块和信息过滤模块,搭建图书馆个性化信息服务系统架构。依托分布式人工智能领域的Agent技术,在多智能Agent协同工作下,采用基于内容的过滤方式及智能Agent的学习、更新功能,从用户操作记录中提取特征信息,构建不同的兴趣模型。根据读者兴趣差异,与传统文档检索结果相匹配,有效过滤出读者需求信息,减少读者寻找需求信息的时间,提高读者检索效率,实现相似用户的信息推送,实现“信息找人”。  相似文献   

9.
NetEye Firewall 3.0中带给用户最大的好处在于对应用层的保护能力的大幅度提升,它以包过滤的外部形态,提供了只有应用代理才能够做到应用保护能力。下面我们将这个技术与普通的包过滤技术和应用代理技术分别进行一下对比分析,以便用户对这个技术有更清楚的了解。 “流过滤”与“数据包内容过滤”的比较:  相似文献   

10.
针对协同过滤系统中数据稀疏导致推荐质量下降的问题,提出了一种基于时间和共同评分项目数的协同过滤算法。其基本思想是:首先定义关于时间信息函数来降低预测误差,两个用户对共同评分的物品产生行为的时间间隔越远,他们之间的相似度就会越小;其次,定义和共同评分项目数量有关的函数,惩罚数量很少的两个用户之间相似度。实验表明,改进的算法通过调整用户相似度,比传统的协同过滤算法具有更好的推荐质量。  相似文献   

11.
汉字倒说     
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。  相似文献   

12.
《海外英语》2007,(5):44-45
It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,  相似文献   

13.
钱生钱!     
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了  相似文献   

14.
《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.  相似文献   

15.
The problem on the geometrc inequalities involving an n-dimensional simplex and its inscribed simplex is studied. Aninequality is established, which reveals that the difference between the squared circumradius of the n-dimensional simplex andthe squared distance between its circumcenter and barycenter times the squared circumradius of its inscribed simplex is not lessthan the 2(n-1)th power of n times its squared inradius, and is equal to when the simplex is regular and its inscribed siplex is atangent point one. Deduction from this inequality reaches a generalization of n-dimensional Euler inequality indicating that thecircumradius of the simplex is not less than the n-fold inradius. Another inequality is derived to present the relationship betweenthe circumradius of the n-dimensional simplex and the circumradius and inradius of its pedal simplex.  相似文献   

16.
王菲 《华章》2007,(12):273-273
Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.  相似文献   

17.
现在,我们可以没有面包,没有钱,没有房子,没有车子……但我们唯独不能丢失的是高尚的情操,笃定的信念,还有,满满的希望!  相似文献   

18.
Using virtual reality for interactive design gives a designer an intuitive vision of a design and allows the designer to achieve a viable, optimal solution in a timely manner. The article discusses the process of making the Virtual Reality System of the Humble Administrator's Garden. Translating building data to the Virtual Reality Modeling Language (VRML) is by far unsatisfactory. This creates a challenge for computer designers to do optimization to meet requirements. Five different approaches to optimize models have been presented in this paper. The other methods are to optimize VRML and to reduce the file size. This is done by keeping polygon counts to a minimum and by applying such techniques as object culling and level-ofdetail switching.  相似文献   

19.
钱微 《华章》2007,(3):124-124
The awareness of individualism can be traced back to the period of American Revolution when the Declaration of Independence was produced.It expressed basic beliefs concerning freedom,equality,democracy,privacy and the relationship between people and government,which were exactly what the philosophy of individualism mostly dealt with at that time.This paper is to exploit the essence of individualism by analyzing the Declaration .The analysis enables us to reconsider its significance to the issue of America human rights and foreign policies.  相似文献   

20.
裴水妹 《华章》2007,(11):196
Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.  相似文献   

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