Typical querying operations Detail description
7.1 Information retrieval on the Internet
As the description in Chapter 6, the e-MARE allows the mobile user easily query the information on the Internet via her mobile device. In this section, we will go through the real whole information retrieval process in detail.
Suppose we are interested in quoting the real time stock value at anywhere in anytime.
In general case, there are lots of free stock quote web site on the Internet. One of the most popular examples in Taiwan about TAIEX market is http://stock.kimo.com.tw and
http://stock.yam.com. Figure 7.1 shows the example screen of http://stock.kimo.com.tw and
Figure 7.2 show the example screen of http://stock.yam.com. In those web sites, the user may choose her interesting stock, and browse the real-time value and related information about that stock in the web browser on desktop or notebook PC. Most of these kinds of web sites provide many categories for the user to customize their browsing preferences. That is, for a stock quoting user, she may choose to browse all stock values of the same sort company or just choose one specific company.Figure 7.1: http://stock.kimo.com.tw.
Figure 7.2: http://stock.yam.com.
If the user chooses to show all the stock values of the same type company on the web browser, for example the company about the automobile, the screen will be shown as Figure
7.3.
Figure 7.3: All stock list of the company about automobile.
In this example, we may easily to find that the querying string is shown as follows:
http://tw.stock.yahoo.com/s/kimo_listT221.html?rr=10726177510120.8847874848407946
Obviously, the following ‘rr=10726177510120.8847874848407946’ is the identification for advertisement, and is not irrelevant to the content of this time of search. Thus, the major querying string is shown as follows:http://tw.stock.yahoo.com/s/kimo_listT221.html
Again, comparing the above querying string to the example for querying the stock value of first classification of electronic companies which is shown in the following:
http://tw.stock.yahoo.com/s/kimo_listT231.html
In this case, we may recognize that the URL address of the stock quote information will be http://tw.stock.yahoo.com, and ‘s/kimo_list’ will be the pre-string of the querying format, and then the ‘.html’ will be the post-string of the querying format. Furthermore, obviously, the T221 or T231 should be the classification number of the stock value of TAIEX market on the web site. Thus, for the mobile user, she may set these arguments (URL, pre-string,
post-string) to the database of e-MARE in advance by WWW interface. Hereafter, she can compose the following subject of operational e-mail to query the specified classification of company stock value through her mobile device:
&&PWD(secret);&&AQUERYC(9,T221);
The result of the querying results is shown as the follows:
Yahoo!奇摩股市
7.50
In the same example, the above situation is that when the user wants to browse many companies at a time. However, in many cases, there are lots of mobile users will only to query one or little stock value in the market. At the same web site, if the user has entered the stock id number 2330 into the web site, and press the ‘query’ button, the URL will be encoded as follows:
http://tw.stock.yahoo.com/s/s/kimo_day2330.html
Again, we may conclude that the URL address is always ‘http://tw.stock.yahoo.com/’, and the pre-string is ‘s/s/kimo_day’, the post-string is ‘.html’. The screen after the user has entered the stock id is shown in Figure 7.4.
Figure 7.4: The screen of querying the stock id 2330.
To quote the specific stock price via mobile device by e-MARE framework should compose the following command:
&&PWD(secret);&&AQUERYC(7,2330);
After the user has sent her operational e-mail, few minutes later, the results will be already in the user’s mailbox, and it is also shown as follows:
Yahoo!奇摩股市 搜尋網站
會中腄 A 務說明∣Yahoo!奇摩 股市熄
投資組合 當日行情 大盤 櫃檯 類股 期貨 美股 新聞 理財
股票代號/名稱 常見問題 資料日期: 92/12/29 股票
代號 時間 成交 買進 賣出 漲跌
張數
Although the above results have many unwanted information, but those documents of the various information sources can be read on the user’s mobile device now, still less those unwanted information can also be filtered by some elaborate codes of programming language, such as the statement ‘s//’ statement in Perl.
Except quoting the stock on the Internet, looking up new words on the Internet dictionary via mobile device is also a very easy work at e-MARE framework. In general, if a user has entered the work ‘amazing’ into the dictionary site (http://tw.dictionary.yahoo.com/) on the Internet, the screen will the same as Figure 7.5.
Figure 7.5: The screen of http://tw.dictionary.yahoo.com/.
Meanwhile, the URL was encoded as the follows:
http://tw.dictionary.yahoo.com/word/amazing
Obviously, the encoded string can be separated into the URL part
‘http://tw.dictionary.yahoo.com/, and the pre-string part, ‘word’. In this example, there is no post-string at all. The result through e-MARE for looking for the word ‘amazing’ is shown as follows:
The fetching result for http://tw.dictionary.yahoo.com/word/amazing is shown as follows:
Yahoo!奇摩字典
會中腄 A 務說明∣Yahoo!奇摩 字典查詢
請輸入查詢字(中^文皆可) << >>
字典熄 > 字典瀏覽 > amazing 釋 義
辨 析 amazing
a. ( 形容詞 adjective ) adv. ( 副詞 adverb ) a. ( 形容詞 adjective )
1. 令人驚異的,使人吃驚的 ▲ top
adv. ( 副詞 adverb ) 1. 【方】 很 ▲ top
會中腄 A 務說明∣Yahoo!奇摩
雅虎國際資訊 版權所有 ?2003 Yahoo! Taiwan Inc. All Rights Reserved.
隱私權政策 - 服務條款 Service Time:590536
Thus, utilizing e-MARE framework, through mobile device under unstable and expensive Internet connection, the user also may easily look for the new English word from the Internet.