Rank 1:

       SIGMOD: ACM SIGMOD Conf on Management of Data
       PODS: ACM SIGMOD Conf on Principles of DB Systems
       VLDB: Very Large Data Bases
       ICDE: Intl Conf on Data Engineering

       CIKM: Intl. Conf on Information and Knowledge Management
       ICDT: Intl Conf on Database Theory

Rank 2:

SSD: Intl Symp on Large Spatial Databases
DEXA: Database and Expert System Applications
FODO: Intl Conf on Foundation on Data Organization
EDBT: Extending DB Technology
DOOD: Deductive and Object-Oriented Databases
DASFAA: Database Systems for Advanced Applications
SSDBM: Intl Conf on Scientific and Statistical DB Mgmt
CoopIS - Conference on Cooperative Information Systems
ER - Intl Conf on Conceptual Modeling (ER)

參考 http://www3.ntu.edu.sg/home/assourav/crank.htm

     摘要: That’s why I don’t want to hear people’s ideas.
I’m not interested until I see their execution.  閱讀全文      摘要: 這兩天在學習python，主要參考簡明教程http://www.swaroopch.com/byteofpython/ ， 入門很不錯，有興趣推薦參考。
在16章中，作者建議讀者寫一個地址簿程序，還記得寫它都是在大一學c語言的年代了，不過下午還是抽出了一點時間來寫這個程序，寫了兩個版本，一個是使用python 字典來存儲名字和地址，另一個版本則使用python的面向對象特性，來鏈式存儲聯系人對象。  閱讀全文      摘要: 據說最近psp最近要升值了～無論是因為破解的原因還是什么，但總之估計sony還是很難想到，當然我們也很值得慶幸的是這幫hack的大牛已然將kvm，python stackless等移植到了psp平臺，強大的ppc支持，可足以媲美幾年前的personal computer，這一點毋庸置疑，更不用去與手機平臺相對比了。  閱讀全文      摘要: org.eclipse.jface.viewers.TreeViewer

的繼承關系是  閱讀全文 目前 ext已經全面升級了主站，而且也release2.1版本，并新增了一些例子。
最近發布的Firefox3 beta 5版本，個人認為還是比較不錯，運行JS的也更快、上網速度也快了很多。
但經原來做的一些js程序測試，ext2.0版本運行在FF3Beta5上還存在一些顯示問題。

     摘要: 昨天寫了個關于圖庫的總結mail 在這貼下，以供參考，當然望不吝賜教  閱讀全文      摘要: 前兩天寫了一個處理邏輯表達式的小程序，可以用來處理專家系統實事等邏輯關系表達式。  閱讀全文      摘要: EasyMock 是一套通過簡單的方法對于指定的接口或類生成 Mock 對象的類庫，它能利用對接口或類的模擬來輔助單元測試。本文將對 EasyMock 的功能和原理進行介紹，并通過示例來說明如何使用 EasyMock 進行單元測試。   閱讀全文      摘要: Craigslist的網站上沒有圖片，只有密密麻麻的文字，標著各種生活信息，是個巨大無比的網上分類廣告加BBS的組合...  閱讀全文      摘要: Trie樹是一棵度 m ≥ 2 的樹，它的每一層分支不是靠整個關鍵碼的值來確定，而是由關鍵碼的一個分量來確定。  閱讀全文      摘要: For myself learning.
Personal Mastery  閱讀全文      摘要: Have you read Jess In Action by Earnest J. Freedman-Hill? It's one of the better books out there on rule engines, though it does require some experience to get the most out of the book.
A variation on the bookstore could be recommendation engine. That would provide an opportunity to use a rule engine for direct matching on category/subcategory and aggregations.  閱讀全文      摘要: IBM Dump Analyzer for Java是來分析虛擬機穩定性的一種可擴展框架。對Java虛擬機生成的產物進行自動診斷。  閱讀全文      摘要: 實在忍受不了sun的做事風格和它的開發工具了，nb的beta6一踏糊涂一堆bug，唉~想著就想起來sun中國弄個nb插件的比賽不僅過程糟糕，獲獎了居然還不兌現承諾，到現在也杳無音信，估計是證書也不想發了，真是讓大家對它越發感到沒有信心~~~~~~~~~不提這個了，還是講講Europa 和 myeclipse， 最近在寫一個基于規則的引擎，用的Europa 和myeclipse6 感覺非常舒服，myeclipse的功能也大大加強了比如改進了javaEE5 提高了EJB3開發效率可以支持從數據模型到bean的轉換，java的持久化程度及其Spring-JPA的高度集成。開發ajax的朋友可以發現 myeclipse對ajax的開發和測試做的也非常好，尤其是對js的調試。Web開發的另一個特點是支持RAD web。nb原來喊的一項特色是集成了matisse，在myeclipse目前也集成了它而且對于可視化swing開發非常方便，當然你也可以自己按照，不直接更新。
myeclipse中集成的derby和tomcat也大大加速了服務器的連接和部署，調試等。至于db視圖個人使用oracle  閱讀全文      摘要: Given a picture composed entirely of horizontal and vertical line segments, calculate the minimum number of times you must lift your pen to trace every line segment in the picture exactly n times.
Each line segment will be of the form " " (quotes for clarity), representing a segment from (x1,y1) to (x2,y2). Segments may cross each other. Segments may also overlap, in which case you should count the overlapping region as appearing in the drawing only once. For example, say t  閱讀全文

posted @ 2007-10-30 21:36 wqwqwqwqwq 閱讀(1188) | 評論 (0) | 編輯 收藏

Lottery Again

     摘要: In most states, gamblers can choose from a wide variety of different lottery games. The rules of a lottery are defined by two integers (choices and blanks) and two boolean variables (sorted and unique). choices represents the highest valid number that you may use on your lottery ticket. (All integers between 1 and choices, inclusive, are valid and can appear on your ticket.) blanks represents the number of spots on your ticket where numbers can be written.  閱讀全文

posted @ 2007-10-24 21:20 wqwqwqwqwq 閱讀(1205) | 評論 (1) | 編輯 收藏

A Q of Encrypting String

     摘要:
Let's say you have a binary string such as the following:
011100011
One way to encrypt this string is to add to each digit the sum of its adjacent digits. For example, the above string would become:
123210122  閱讀全文

posted @ 2007-10-23 13:34 wqwqwqwqwq 閱讀(1055) | 評論 (1) | 編輯 收藏

Maze Problem

     摘要: People enjoy mazes, but they also get them dirty. Arrows, graffiti, and chewing gum are just a few of the souvenirs people leave on the walls. You, the maze keeper, are assigned to whiten the maze walls. Each face of the wall requires one liter of paint, but you are only required to paint visible faces. You are given a map of the maze, and you must determine the amount of paint needed for the job.  閱讀全文

posted @ 2007-10-21 21:28 wqwqwqwqwq 閱讀(1460) | 評論 (1) | 編輯 收藏

TopCoder_2

     摘要: In written languages, some symbols may appear more often than others. Expected frequency tables have been defined for many languages. For each symbol in a language, a frequency table will contain its expected percentage in a typical passage written in that language. For example, if the symbol "a" has an expected percentage of 5, then 5% of the letters in a typical passage will be "a". If a passage contains 350 letters, then 'a' has an expected count of 17.5 for that passage (17.5 = 350 * 5%). Pl  閱讀全文

posted @ 2007-10-21 20:14 wqwqwqwqwq 閱讀(917) | 評論 (1) | 編輯 收藏

TopCoder_1

     摘要: A speed radar is installed in a highway zone where the maximum speed limit is maxLimit mph, and the minimum speed limit is minLimit mph.  閱讀全文

posted @ 2007-10-20 13:25 wqwqwqwqwq 閱讀(1262) | 評論 (1) | 編輯 收藏

Struts Review

     摘要: 好長時間沒寫程序了感覺，忘了很多東西，呵呵，今天打開Eclipse寫了一個Struts的小應用，也回顧了一遍它的主要內容，這篇隨筆就把整理的一些東西貼出來吧。  閱讀全文

posted @ 2007-10-07 16:55 wqwqwqwqwq 閱讀(1020) | 評論 (0) | 編輯 收藏

拐點提取法在曲線擬合中的簡單應用

     摘要: 本程序為優化，比較好的方法是，進行曲線積分，算誤差比進行方程約束，由于時間比較少，稍候會給出優化程序。  閱讀全文

posted @ 2007-08-14 17:27 wqwqwqwqwq 閱讀(1006) | 評論 (0) | 編輯 收藏

Stack Simple implement

     摘要: A simple implement of own stack  閱讀全文

posted @ 2007-08-03 18:14 wqwqwqwqwq 閱讀(996) | 評論 (0) | 編輯 收藏

To find a max segment in a array which includes negative and positive no.

     摘要: To find a max segment in a array which includes negative and positive no.There r several methods to solve this question.  閱讀全文

posted @ 2007-07-31 12:45 wqwqwqwqwq 閱讀(846) | 評論 (0) | 編輯 收藏

隨感

     摘要: 今天很早的來到公司，首先查收了一下郵箱，發現5封新郵件，仔細的看了下都是關于我前天申請一個IBM USA那邊的一個DB訪問權限的郵件。  閱讀全文

posted @ 2007-07-27 08:55 wqwqwqwqwq 閱讀(298) | 評論 (2) | 編輯 收藏

@hotjava Smallworld&&PMI

     摘要: Sun has just announced the winners of netbeans plugin competition  閱讀全文

posted @ 2007-07-21 23:34 wqwqwqwqwq 閱讀(1138) | 評論 (0) | 編輯 收藏

PMI

     摘要: PMI(Performance MonitoringInfrastructure)   閱讀全文

posted @ 2007-07-13 17:32 wqwqwqwqwq 閱讀(1186) | 評論 (2) | 編輯 收藏

Sundries to && of myself

there r so many sundries during these days and almost every point is focussing on papers\projects\ ...\recommending data for my next master degree, but my thought just is in a mess, i cannot describe the stage && status except paying more attention,well,just feeling time is out of my hand.the only thing I am looking forward is the result of nb plugin competition and i will send the request and willing letter to the professors later but then.I m believing that though  have lost the opportunity of my target ~~God, it's so pity for a sudden change,at the same time, I stood with everything.I have got another time now and have prepared all the condition for the coming applying.thx in advance for my friends, because u have give a stage and some suporting.especially to stand^-^.TracyYan now has just rushing in && strangely,I find~~~~after six years,why not then, I have also no answers, may be pretty but not really for the feeling,~~~~~.
Yestoday I have collected some data about computer science department professors of pku, bless.
benny is a so kind person though he(she is a judge, but i really want to say,actually not to him.here the only puzzlement is why now after a month asking the method how to use the tool and why dont know the document which has contains all the info he want to know, I know, really, each guy is busy, busy with one's sundries,so many! Symptom.

posted @ 2007-07-11 22:19 wqwqwqwqwq 閱讀(527) | 評論 (0) | 編輯 收藏

JFx~~~~builder

     摘要: 首先說點別的:),今天google adsense給我回信關于blog頭搜索不好用的原因是嵌在了里。我評論的前兩條是表揚google...  閱讀全文

posted @ 2007-06-02 23:16 wqwqwqwqwq 閱讀(1520) | 評論 (8) | 編輯 收藏

焦點關注

     摘要: 好長時間沒寫隨筆了^^，主要是因為這幾天很忙,ibm的、學校的、還有sun的插件大賽，但是這段時間自己確一直在學習，在繼續關注技術的進展，隨著這篇關注焦點，在之后的幾天里，我會繼續寫一些，IBM SOA、SOAP、RBD、EGL還有我們HotJava的 SmallWorld等內容。
JavaFX當前是備受SUN推崇和重點推廣的項目之一，也是Java技術繼續演化的內容之一。  閱讀全文

posted @ 2007-05-31 11:03 wqwqwqwqwq 閱讀(1222) | 評論 (0) | 編輯 收藏

JNDI~基礎

     摘要: 今天瀏覽網頁，看見篇寫JNDI比較基礎，也比較詳細的文章，又自己整理了一下，post到新手區了，。。。。：）JNDI是java訪問名字和目錄服務的接口，與JDBC一樣，它僅僅只定義了一套服務接口，實現由具體廠商提供。作為j2ee核心組件之一，它為應用程序查找其他程序組件和資源提供了統一的接口，其中最常見的用途就是數據源的配置、EJB名字查找、JMS相關配置等。JNDI的架構如下圖。在JDK1.3中...  閱讀全文

posted @ 2007-05-14 23:33 wqwqwqwqwq 閱讀(816) | 評論 (0) | 編輯 收藏

ITM

     摘要: 開篇，哈哈哈，我喜歡這句話“NO MONEY ONLY WORK DADADI”。
ITM provides out of box uses to quickly deploy and active the app with the best ibm practice.admins can define the user's views,threshold and so on.Tivoli Enterprise Monitoring Agents are available for monitoring different types of platforms and applications, including mainframes,middleware,distributed,and database...  閱讀全文

posted @ 2007-05-11 23:00 wqwqwqwqwq 閱讀(957) | 評論 (0) | 編輯 收藏

Little for ITM && CLI

     摘要: CLI command line interface ...  閱讀全文

posted @ 2007-05-10 23:23 wqwqwqwqwq 閱讀(988) | 評論 (0) | 編輯 收藏

F3(轉http://blogs.sun.com/chrisoliver/entry/f3)

     摘要: 據說極有可能迅速取代目前流行的SWING和SWT技術。  閱讀全文

posted @ 2007-05-07 22:30 wqwqwqwqwq 閱讀(991) | 評論 (1) | 編輯 收藏

小“征”

北京今天有些風，但是依然擋不住本有的悶熱。傍晚下樓吃飯，就像突然走進蒸籠一樣的感覺，想象著眼前如果是大海該多好啊，說到這真是慚愧，我在大連待了20多年，居然不會游泳，哎~...吃完飯，我從上地佳園溜達到公司，休息了一下。本想著看點書，但是這個時候似乎是快到下班的時間了，看著白領一族的匆匆離去、聯想圍欄旁悠然自得的粉刷小匠，我突然萌生要離開這兒，去高校轉轉的念頭。
繞過DASCOM沿著信息路來到了五街，在路牌下等者656...我真的實在受不了了太陽的直射和等車的煩躁，終于決定今天也學一次抗日前的長征，學一次開學前的軍訓，...自己走到北大，也算熟悉熟悉一路的環境。現在回來我真的發現這是一個了不起的決定，因為這實在太累，走去五環-北大-四環，又跑回上地，即使在地圖上只能算作一指之距。想想先前走到北京體校時看見一個學生繞學校跑時的竊竊思緒，我更敬佩自己。腳累得很，但我也算是準備好了這段時間出門在外的辛苦...RuiRui，你說得很好，堅持久了，也就好了。

posted @ 2007-05-07 21:40 wqwqwqwqwq 閱讀(447) | 評論 (0) | 編輯 收藏