陸歌皓博克

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

最早的推薦技術(shù)實現(xiàn)www.cs.umm.edu/research/GroupLens/

優(yōu)點：將推薦技術(shù)集成到電子商務(wù)網(wǎng)站能夠產(chǎn)生新的購買機會并增加用戶的停留時間。

推薦引擎的商業(yè)運作模式：ASP或授權(quán)使用

推薦系統(tǒng)的分類：
1、隱式引擎：基于多用戶瀏覽行為提供推薦（如“買了A產(chǎn)品的客戶接著還購買了B產(chǎn)品”）
2、顯式引擎：基于用戶對產(chǎn)品類型進行搜索所用的關(guān)鍵字、詞提供推薦
3、內(nèi)容系統(tǒng)：系統(tǒng)通過問卷或購買歷史收集用戶偏好提供推薦
4、協(xié)作建議引擎：按照問卷或用戶在線購買反饋統(tǒng)計人群的購買偏好并提供建議
5、混合系統(tǒng)：綜上

具體所用的技術(shù)
1、專家系統(tǒng)
2、規(guī)則庫
3、貝葉斯算法
4、神經(jīng)網(wǎng)絡(luò)