陆歌皓博克

As a result, users often run into integration problems when attempting to access desktop applications via mobile devices. Could Web services provide an answer? Three architectures to implement a mobile Web service:

1. Wireless Portal Network
A wireless portal network has a gateway between the mobile client and the Web service provider; this gateway takes care of all SOAP/HTTP requests and returns responses in a supported format.
2. Wireless Extended Extended Network
mobile clients interact directly with Web service providers; they’re true Web services clients and can send or receive SOAP messages.
3. P2P
mobile devices can also act as Web service providers in addition to requesting Web services, which is especially beneficial in ad hoc networks.

Big Problem: The overhead involved in XML processing presents a huge problem for mobile Web services applications.

The following picture is the author's architecture of the Mobie Web Services

The service broker service ontology specifies a domain (such as food, rental, or entertainment) and a set of synonyms for flexible search. A service class is further specified by its attributes, which are service-class specific and can include URIs.

Implementation of this framework

最早的推荐技术实现www.cs.umm.edu/research/GroupLens/

优点：将推荐技术集成到电子商务网站能够产生新的购买机会并增加用户的停留时间。

推荐引擎的商业运作模式：ASP或授权使用

推荐系统的分类：
1、隐式引擎：基于多用户浏览行为提供推荐（如“买了A产品的客户接着还购买了B产品”）
2、显式引擎：基于用户对产品类型进行搜索所用的关键字、词提供推荐
3、内容系统：系统通过问卷或购买历史收集用户偏好提供推荐
4、协作建议引擎：按照问卷或用户在线购买反馈统计人群的购买偏好并提供建议
5、混合系统：综上

具体所用的技术
1、专家系统
2、规则库
3、贝叶斯算法
4、神经网络