News Paper Reading

2008年7月22日 星期二

Facebook redesign to give users more control

SAN FRANCISCO (Reuters) - Facebook Inc. is making sweeping changes to the world's largest social networking site, aiming to give users more control and to curb new forms of spam, company officials said late on Sunday.

Facebook's redesign aims to make user profiles more dynamic by giving more prominence to the newest information, and it is cracking down on applications that violate privacy or user-control guidelines.

"Users should have control of their information when and where they want," said Ben Ling, the head of Facebook's platform product management. "Users should share things because they want to share them."

Facebook will offer members a cleaner and simpler set of the Web pages which make up personal profiles. These profiles, which can be organized into tabbed pages, let users share tidbits of their lives with select groups of friends or colleagues.

Previously, members could edit largely static parts of their profiles such as birth date, education or music interests.

"Facebook is making significant changes, both in terms of what information gets prominence and what gets buried," said Gartner analyst Ray Valdes, adding that the changes may seem abrupt to many users.

"The company is trying to eliminate some of the toxic threats to the Facebook experience."

(路透舊金山20日電)Facebook公司主管今天晚間表示, 這個全世界最大的社群交友網站正在進行大幅革新,目標將讓使用者獲得更多掌控權,也可以遏阻新型態的垃圾郵件。

Facebook網站改版的目標是,透過允許新增訊息擁有更為顯著的版面,讓使用者個人檔案變得具備更高互動功能,同時Facebook也正全力掃蕩觸犯隱私權或使用者管理規範的應用程式。

Facebook平台產品管理部主管林格(Ben Ling)指出:「使用者應該能隨時隨地擁有個人資訊管理權,使用者應該在想分享資訊的情況下才進行資訊分享」。

Facebook將提供會員更為乾淨清爽的個人資料網頁版面。這些可以用標籤來歸類的個人檔案資料,可以讓使用者與特定族群的朋友或同事分享個人生活點滴訊息。中央社(翻譯)

 

making sweeping changes = 進行大幅革新

said late on Sunday = 今天晚間表示

cracking down on = 全力掃蕩

violate privacy = 觸犯隱私權

the head of Facebook's platform product management = 產品管理部主管

making significant changes = 做了一個很重大有意義的改變

eliminate = 消除 [i'limineit]

both in terms of what information gets prominence and what gets buried
prominence  = 突起,突出,突出物

buried: [ 'berid ]
v. 埋葬
a. 埋入的(沉没的)

定期定額賠錢 敗在五迷思

2008年7月20日 星期日

這一波全球股市下跌,災情慘重,定期定額買進多種股票基金的投資人,3年下來,竟然虧損累累,心頭疑惑重重,銀行主管說,策略無誤,賠錢卡在五大迷思,應該要「多頭俟機出場、空頭繼續扣款」,才能賺到錢。

迷思一:任何基金都能抱。

銀行主管說,扣款買進的基金,績效表現如何,對定期定額的投資成效,影響重大,同樣3年的時光,投入日股基金賠近15%,買進拉美基金,獲利34%,一來一往,差距極大。

中國信託財富管理部投資顧問中心經理廖亭亭說,前景不佳的基金,一定要適時出場。

迷思二:不要在意股市波動。

台北富邦銀協理蔡孟娟說,很多人以為,定期定額買基金,不要在意短線波動,其實,碰到行情走到3、5年的高點,進入大震盪時期,一定要注意投資損益。

定期定額買進基金,單位數一路累積,不同價位計算損益,差距很多,例如,扣款3年買進、累計100單位的台股基金,2個月前計算損益,大賺20%,現在來算,卻是由盈轉虧。

迷思三:一路抱牢不要賣。

投信投顧公會秘書長蕭碧燕表示,定期定額買基金,強調長期投資,但是,可不要一路死抱,這3年一路扣款買基金的投資人,去年第四季、今年第二季高檔時期,如果沒有適時贖回,至今一場空。

股市走大多頭,行情大漲一段期間之後,定期定額投資人要伺機出場,高檔部分了結,才算賺錢。

迷思四:任何時候都能買。

蔡孟娟指出,空頭市場人人怕,其實,反而是定期定額買基金,最好的時機,特別是大跌一段以後,更是進場的好時機,扣款一路買1、2年,空頭期間愈久、買進的便宜貨愈多。

反而是多頭時期,一路往上買,愈買愈貴,成本愈高,不一定合適。

迷思五:贖回了結,擔心賺不夠多。

台新銀主管說,不少定期定額投資戶,帳面賺15%、20%,想要賺更多,擔心一旦贖回,基金淨值又漲上去,賺不夠多。

其實,股市多空循環,扣款買基金過程中,如果是處在股市多頭、行情進入高檔時期,一定要逐步獲利了結,才算賺錢。

兆豐銀主管說,獲利了結之後,可利用獲利的資金進場扣款,例如,累計投入100萬,贖回時拿回120萬,可用20萬扣款投入,或是,120萬重新扣款投入。

採取這種作法的好處是,行情續漲,還是可以繼續獲利,如果行情下跌、甚至轉空,也比較不受衝擊。

定理證明過程中常見的短語和句子

2008年7月18日 星期五

定理證明過程中常見的短語和句子

定理證明過程中常見的短語和句子


1.
下面的句型可用來表達“根據什麼即可得到什麼”的意思

According to definition , it follows …

According to hypothesis , it follows …

According to assumptions, it follows …

According to theorem(N), it follows …

According to lemma (A) , it follows …

According to corollary (B) , it follows …

According to the remark , it follows …

According to the fact that … , it follows …

(可以把上面的“according to ”換成“ by” )

Since …, it follows …


2.
如果一個論斷可以通過一些簡單運算或簡單推理而獲得,由於這些運算或推理比較簡單,讀者可以自行推算,因而只需直接寫出論斷來,這時可用下面句型:

(1) It is easy to see that …

It is easy to show that …

It is easy to prove that …

It is easy to verify that …

It is easy to check that …

(2) It can easily be seen that …

It can easily be shown that …

It can easily be proved that …

It can easily be verified that …

It can easily be checked that …

3.如果所要提及的結論比較顯淺,或是眾所周知,無需作進一步的證明,這時可用下面句型:

(1) It is clear that …

It is obvious that …

It is evident that …

It is well-known that …

(2) Clearly, …

Obviously, …

Evidently,…


4.
為了證明一個定理有時需要引進輔助函數,這時可用下面句型:

Let us first define the function…

Let us introduce a new function…

Let us consider the function…

Let us first investigate the function…

Let …

Set…

Define…

Put…

Consider…


5.
在一個定理中,有幾個結論需要證明,其中有些結論比較明顯,可不用證明,僅需證明餘下結論即可,這時可用下麵句型:

Since (A) and (B) are obvious, we need only prove ©.

Since (A) and (B) are trivial, we need only prove ©.

Since (A) and (B) are trivial, it suffices to prove ©


6.
為了證明一個定理,有時我們並不是直接去證明,而是證明一個新的論斷,一旦新的論斷得到證明,已給定理不難由此而得證,這時可用下麵句型:

以下各句用於新的論斷被證明之前:

The theorem will be proved if we can show…

The result will be proved if we can show…

The theorem will be proved by showing that…

If we can prove…then the theorem follows immediately.

以下各句用於新的論斷被證明之後:

The theorem is now a direct consequence of what we have proved.

The theorem follows immediately from what we have proved.

The theorem is now evident from what we have proved.

It is evident to see that the theorem holds.


7.
在證明過程中,有時要用到一些早已學過的知識或技巧,這時可用下麵句子,以提醒讀者:

Recall that…

Notice that…

Note that…

Observe that…

In order to prove the theorem, we need the knowledge of …

In order to obtain the following equation, we need…


8.
如果需要證明的定理的假設條件是一般條件,但是,只要定理在特殊條件下成立,就不難推出定理在一般條件下也成立,這時僅需要在特殊情況下去證明定理就夠了,為此可用下面句型:

Without loss of generality, we may consider…

Without loss of generality, we may assume…

Without loss of generality, we may prove the theorem in the case…

It suffices to prove the theorem in the case…

We need only consider the case…

For simplicity, we may take…


9.
如果待證的論斷可用以前用過的相似的方法或步驟進行證明,則可用下面句型:

This theorem can be proved in the same way as shown before.

This statement can be proved in a similar way as shown before.

This theorem can be proved by the same method as employed in the last section.

This theorem can be completed by the method analogous to that used above.

Using the same argument as in the proof of theorem N, we can easily carry out the proof of this theorem.

We now proceed as in the proof of theorem N.

We shall adopt the same procedure as in the proof of theorem N.


10.
如果我們用的是反證法,則其開頭及結尾可用下麵句型:

If the statement(or assertion, conclusion) were false(or not true, not right) then…

If the assertion would not hold, then…

This is contrary to…

This contradicts the fact that…

This leads to a contradiction.


11.
表示定理已證畢或者把前面所證的總結為一結論

We have thus proved the theorem.

This completes the proof.

The proof of the theorem is now completed.

It is now obvious that the theorem holds.

Thus we have derived that …

Consequently, we infer that…

Thus we conclude that…

Thus we are led to the conclusion that …

Thus we arrive at the conclusion that …

Thus we can summarize what we have proved as the following theorem.


 

12. 其它

There exist(s)…such that…

We claim…in fact…

We are now in a position to…

If otherwise…

Provided that…

 

 

a定理證明過程中常見的短語和句子

我要加油~

2008年7月17日 星期四

論文看不懂

加強觀念  驅動程式  演算法 電子學

程式學好  Windows CE Windows 程式設計

英文....ing  托益600以上

 

over there

國文[1]

2008年7月16日 星期三

在一次 → 再   幹的好 → 得   知到 → 道     帶安全帽 → 戴   名子 → 字
抽煙 → 菸     做捷運 → 坐   毀謗罪 → 誹   年青 → 輕       好利害 → 厲
因該 → 應     決對 → 絕     以經 → 已     臣又系 → 糸     好球袋 → 帶
難到說 → 道   時後 → 候     票卷 → 券     准備 → 準       準許 → 准
節錄至 → 自   樓樓上 → 上上樓              清處 → 楚

What's Profile means?

2008年7月9日 星期三

ZigBee Profile

Profile = 配置文件 描述檔 類別 方案

反之亦然

反之亦然顯示/隱藏例句

    1. v.v. (vice versa); contrariwise

      and vice versa.

     

    alternative顯示/隱藏例句

    KK: []
    DJ: []

    a. (形容詞 adjective)[Z][B]

    1. 兩者(或若干)中擇一的;非此即彼的

    2. 替代的;供選擇的

      There was no alternative route open to her.

      她別無選擇。

    3. 不接受世俗準則的;非傳統的;非主流的

    n. (名詞 noun)

    1. 選擇,二擇一[the S][(+of)]

      If you don't like the school lunch, you have the alternative of bringing your own.

      要是你不喜歡學校準備的午餐,你可以自己帶飯。

    2. 供選擇的東西(或辦法等)[C]

      What alternatives are there?

      還有什麼可選擇的?

    3. 選擇的自由(或餘地)[U]

      They had no alternative in the matter.

      在這件事上,他們沒有選擇的餘地。