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全部话题 - 话题: olap
1 2 3 4 下页 末页 (共4页)
p*****y
发帖数: 69
1
来自主题: Database版 - Data Mining and OLAP
Data mining and OLAP are two different processes.
OLAP helps users to perform many kinds of queries, which are useful for
analysis. The input of OLAP is ad-hoc queries that are usually complex. The
output of OLAP is the query result -- tuples. The goal of OLAP is to support
all kind queries and to perform the queries efficiently and correctly. It
requires specific query evaluation algorithms and query optimization in
support of long-running, CPU intensive queries. The inputted queries are
usuall
e****7
发帖数: 4387
2
OLAP,online analytical processing
1. 谁在用
2. 用那家的
3. 有什么好处
我主要用MS的SSAS,挺容易上手,功能还算全,works well with MS SQL SERVER AND
OTHER MS APP. 性能也不错。
接触过pentaho 的OLAP, 比MS差不少
知道呢Oracle 买了Hyperion , 不知道怎么样了
z***i
发帖数: 46
3
来自主题: Database版 - How is OLAP market now?
MS OLAP server and Essbase, which one is better?
c*****t
发帖数: 1879
4
来自主题: Database版 - any good books on olap, dw?
我想学点 olap,data warehouse 方面的应用以及方法。有什么好书么?
thx
a****b
发帖数: 489
5
感觉大家在BI方面讨论ETL的较多,讨论OLAP, SSAS, MDX不多啊
s*******e
发帖数: 261
6
来自主题: Database版 - OLAP design的一些原则?
请问OLAP design的一些原则或方案?
如何提高访问速度?
需要备份很多historical records吗?
谁能推荐一些材料吗?
视频或链接也可以。
谢谢
f***y
发帖数: 4447
7
https://www.enmotech.com/web/detail/1/724/2.html
导读:日前,华为公司在京面向全球发布了人工智能原生(AI-Native)数据库GaussDB和
业界性能的分布式存储FusionStorage 8.0,将多年的AI技术和能力以及数据库经验融
入到新品,实现很多创新性突破,比如人工智能技术融入分布式数据库的全生命周期、
一套存储可同时支持块、文件、对象、HDFS协议等。
其中,最为标杆性的场景应用实属招商银行,在实践中:
华为GaussDB管理数据容量提升10倍,AZ内故障恢复速度提升30倍。以故障恢复为例,
GaussDB的RTO时间小于1秒,而其他厂商则需要30秒;
FusionStorage 8.0在招行,部署渠道接入、开发测试、VDI以及大数据系统,一套存储
替代原有4种存储设备,节省40%的TCO,业务上线速度提升9倍。其次,将人工智能技术
融入存储全生命周期管理,从资源规划、业务发放、系统调优、风险预测和故障定位等
方面实现智能运维管理,实现云上云下协同。再者,分布式存储性能业界第一,单节点
性能高达16.8万每秒读写速度(IO... 阅读全帖
g****n
发帖数: 3313
8
【 以下文字转载自 SanFrancisco 讨论区 】
发信人: gpsfan (八戒,削她!善了个哉的!), 信区: SanFrancisco
标 题: Re: 【JOBS】11.01 -- 11.30
发信站: BBS 未名空间站 (Fri Nov 18 02:52:59 2011, 美东)
以下职位,如果是名校,高分,申请把握会大增,经过内部推荐后,不需要HR
SCREENING, 直接面试。
年底机会不多,大家抓紧。
EMAIL 简历到:GPSFAN#GMAIL.COM
Office Coordinator
The Role:
Company Concierge, a full-time superstar responsible for helping to run the
day-to-day office operations of a fast-growing technology company.
This is no ordinary admin job:
Historically, it has been the entry point to the comp... 阅读全帖
g****n
发帖数: 3313
9
来自主题: SanFrancisco版 - 【JOBS】11.01 -- 11.30
以下职位,如果是名校,高分,申请把握会大增,经过内部推荐后,不需要HR
SCREENING, 直接面试。
年底机会不多,大家抓紧。
EMAIL 简历到:GPSFAN#GMAIL.COM
Office Coordinator
The Role:
Company Concierge, a full-time superstar responsible for helping to run the
day-to-day office operations of a fast-growing technology company.
This is no ordinary admin job:
Historically, it has been the entry point to the company for smart, dynamic
working students, recent grads, and people re-entering the workforce. Admin
team members have gone on to work in other parts of ... 阅读全帖
g****n
发帖数: 3313
10
具体讨论或有问题:
https://www.facebook.com/groups/CCCN.CMAIN/
以下职位,如果是名校,高分,申请把握会大增,经过内部推荐后,不需要HR
SCREENING, 直接面试。
强调一下啊,要名校,英语要好,GPA 要好,这个我没办法,是公司的文化。
年底机会不多,大家抓紧。在美国之外的同学就先别折腾申请了。虽然公司支持H1B
EMAIL 简历到:GPSFAN#GMAIL.COM
Office Coordinator
The Role:
Company Concierge, a full-time superstar responsible for helping to run
the
day-to-day office operations of a fast-growing technology company.
This is no ordinary admin job:
Historically, it has been the entry point to the company for smart,
dynamic
working stu... 阅读全帖
b********2
发帖数: 13
11
所有如下工作岗位都是基于上海。公司网站:WWW.Datageek.com.cn
All positions are located in Shanghai, China, and open to all levels of
experiences & skills. That's why salary for each position is open.
If you are suitable and interested in any of the following positions, please
write email to: [email protected]/* */ / [email protected]/* */
When writing to us, you must indicate which position you are interested in
or applying for.
--------------------------------------------------
公司简介
--------------------... 阅读全帖
e****7
发帖数: 4387
12
来自主题: Database版 - 问 log 分析 的 问题

我也想听听有没有OLAP以外的办法。
另外想提的就是OMNITURE,和google analytics .
微软的OLAP应该不贵,性价比还不错。open source 的也有,如pentaho cube, 不过一
分钱一分货吧。
weblog 这玩意本身就是一个多维数据,用OLAP可以解决很多aggregation 的计算,
data mart 有十几个表就差不多了。什么dimension hierarchy, aggregation 让OLAP
来完成就容易多了。按照时间或其它的attribute 也狠容易建立partition, 所以
scaling 应该不是大问题。
如果公司请人做OLAP的话,帮我递个简历吧,短期的也行啊,哈哈
h**o
发帖数: 548
13
来自主题: Database版 - 问 log 分析 的 问题
谢谢大家。
对,瓶颈不在"分析web log."而在“把当天的xml和已有的历史文件(也是xml)
累积(是merge,不是简单的加)生成一个新的历史文件xml”这步。
前一年还好,现在客户多了,访问的量大了。累积量也大了,
历史文件 里 userID, url等 好多。没法parse了。
xml设计不是我做的。但现在要我重新设计。
客户需求类似于OLAP。
举个例子: userID_$attr1_$attr2_$attr3_$attr4:
$attr1 包括 上传|下传
$attr2 包括 各种 各种手机电脑类型 包括 爱风 | 安猪|...
$attr3 包括 用户的 content 类型 包括 图型 | 文本 | 视频 | ...
$attr4 包括 公司的东西。 attr4A | attr4B | attr4C | attr4D | ...
例如 monthly report of userID_下传_爱风_视频_attr4A 目的是求:
每月有多少爱风手机用户下传attr4A的视频。注意每个符合要求的用户string都要存在
这张report里,否则将来merge时没法知道... 阅读全帖

发帖数: 1
14
来自主题: DataSciences版 - 求职招聘高薪IT,你想不成功都难
【IT求职成功分享视频】
https://youtube.com/playlist?list=PLRMhRP6Z9GjQMa3LmGMOgoYfuzErGOifZ
【微软Dynamic CRM 项目求职和证书】
OTO(线下线上授课)
最权威的CRM专家
最火爆炙热的职场和市场需求
最精品高效的IT技术
最有效的IT求职培训
知识传递,面试,求职一包到底,100%获取微软CRM 认证证书
云,移动和大数据三大技术趋势以及社交化的发展正在构建新型的IT生态环境,也进一
步将个人与企业紧密地联系起来,使得企业运营和决策能够及时反应来自市场的需求,
让客户满意度最大化,也让企业本身经济效益最大化。这一切都与CRM的广泛成熟运用
密不可分。何为CRM? CRM是Customer Relationship Management的缩写,也就是客户
关系管理。这是一套集销售管理、市场管理、服务管理、敏捷市场反应以及客户商机数
据分析挖掘的平台和技术。
微软的基于云技术的Dynamic CRM平台是目前CRM解
决方案的领导者,被广泛地应用于各个行业如银行、金融、证券、制造业、政府、医疗
... 阅读全帖
e****7
发帖数: 4387
15
来自主题: Database版 - SQL Server DBA vs BI & DW
工资差不太大
Dba可能要相对轻松,没有过多development。工作比较routine。有了问题需要trouble
shoot. 优化。可能要on call.
Bi 的相对要挑战一些,需要面对business user, analyst等客户。需要一定的
business knowledge, 数据库的model,olap方面的知识,ms的olap tool是analysis
service(ssas), 另外通常从oltp转入olap, 大多会用到ssis,ms 的etl tool, 但也见
过用tSQL 做的。再者就是做报表,用ssrs 啦。一般也不复杂。
觉得dba做闷了学点新东西也不错。
e****7
发帖数: 4387
16

我是玩MS BI的,觉得这个DW/BI的意义不完全在于能否取得数据,而是在于能否给予用
户(我这儿一般是business analyst ) analytical capabilities.
对于搞数据库的,可能我们写两行Code就能解决问题了,但一般analyst 没这个能力。
我们做个CUBE,把数据放入Olap Engine, 这样Analyst 可以轻松的用Olap Browser获
取资料,做他们的的Analysis。个人觉得性价比最高的OLAP BROWSER,莫过于MS Excel
了。谁都会用,基本免费(因为基本大家都有)。
虽然这个好似对Job Security 不好,不过大势所趋。
欢迎做BI的来拍。
w******1
发帖数: 520
17
来自主题: JobHunting版 - Bitmap是怎么回事啊?
OLAP - role of bitmap indexes to solve aggregation problems - March 08, 2009
at 22:00 PM by Rajmeet Ghai
Explain the role of bitmap indexes to solve aggregation problems.
Bitmap indexes are useful in connecting smaller databases to larger
databases. Bit map indexes can be very useful in performing repetitive
indexes. Multiple Bitmap indexes can be used to compute conditions on a
single table.
OLAP - role of bitmap indexes to solve aggregation problems - Jan 10, 2010
at 18:50 PM by Vidya Sagar
E
d********w
发帖数: 363
18
来自主题: JobHunting版 - 大数据创业公司篇
这里面创业公司太多了,包含BI工具,数据存储和挖掘,应用等,我就简单说一些我感
兴趣的,其他的可以参考。
Palantir:超过百亿美金估值,已经是超级独角兽,就单独列出来。Peter Thiel创办
大数据公司。数据集成、 信息管理和定量的分析。连接到商业、 专有和公共数据集,
并发现趋势、 关系和异常,包括预测分析。
##############
Database
MemSQL: 号称最快的内存数据库。
GraphSQL:高效、大容量的图形数据库和分析平台,创始人是国人。
MongoDB: 分布式文件存储的数据库
DataStax:主力开发Cassandra。
Hadoop
Altiscale: 提供的Hadoop作为一种服务(HAAS)
Qubole:Hadoop服务提供商,Pinterest也是它的客户
Splice Machine: 基于Hadoop的实时大数据技术公司,支持SQL 事务处理,并针对OLAP
和OLAP 应用进行实时优化处理
机器学习
Paxata:应用机器学习技术处理大数据难题
0xdata:H2O 的算法是面向业务流程——欺诈或趋势预测
Everstrin... 阅读全帖
f**********t
发帖数: 11
19
来自主题: JobMarket版 - BI+Big Data+CRM 项目实践
你想在北美留学期间获得Coop/Intern的机会么?想进入高薪High Tech行业,而苦于没
有实战经验么?你想拿到项目的实战经验,并提升你所掌握的BI和Big Data的技术和技
能么? 快来加入BI+Big Data+CRM项目实践吧!
【入职条件】(提交简历,通过面试):
BI Developers:
Requirements:
• Graduate from University or College
• Hands-on Experience on Excel
• Deep knowledge of SQL, OLTP and OLAP
• Knowledge of SSIS, SSRS, SSAS or Power BI/ Power Pivot/Power View
• Competencies: Team-work, Collaboration and Communication
• Good English in oral and written
Big... 阅读全帖
R*****n
发帖数: 355
20
来自主题: JobMarket版 - 【内推】计算机H1B职位SQL/ETL/BI
请写明你想申请的职位, email简历至[email protected]/* */
-----------------------------------------------
1, Access/SQL
Financial/Banking in Minnetonka, MN
Our client is looking for someone that loves data! This candidate’s ideal
background for this role would be SQL, ETL, Data Warehouse, Access, and
business intelligence in their background. The client needs someone with a
change management and price improvement mindset. This person must support
best practices and will be joining a team that will con... 阅读全帖
h**********5
发帖数: 5355
21
看workload和应用,否则银行交易所的oltp为啥不用mysql。 这种大集群规模的都是做
olap的,换句话说,说mysql 快慢只是相对olap自己说的。

is
So
h**********5
发帖数: 5355
22
看workload和应用,否则银行交易所的oltp为啥不用mysql。 这种大集群规模的都是做
olap的,换句话说,说mysql 快慢只是相对olap自己说的。

is
So
w*r
发帖数: 2421
23
来自主题: Database版 - 一个看似简单的sql语句
首先你这个提法是有问题的, Table应该看成是无序的set, 你要说有序就要根据某一个
/数个attribute排序
你说的表的行数一样,然后求A+B那么就要假定是有序的
如果是有序的话,那么好办用OLAP做一个sequence出来就完了
下面的SQL是Teradata的,其他的平台有相似的OLAP
select a.CA + b.CA
from
(Select a.* , row_number() over (partition by .. order by ..) as seq from A)
a
(select b.*, row_number() over(partition by .. order by ..) as seq from b) b
where a.seq = b.seq
f******2
发帖数: 2455
24
来自主题: Database版 - Business Intelligence vs DataWareHouse
雷到你了?不好意思啊,俺是新手上路。
感觉你的水平当我instructor足够了,能否给说说这个领域在数据库这块儿
是什么前景?好像还有个概念叫CEP,也算OLAP吧?
书是看不动了,能给简单讲讲这几个概念(BI/OLAP/CEP)的关系吗?
在数据库领域算比较新的领域吗?为什么好像有好多小公司干这个?

data
g***l
发帖数: 18555
25
来自主题: Database版 - best practices for sql developer
ETL是TOTALY DIFFERENT STORY了,我讲的是OLTP的系统,你的是OLAP的,OLAP讲的是利
用内存快速的把数据全部LOAD进LOCAL TABLE,避免VALIDATATION和DATA TYPE CHECK,
进到系统里以后再VALIDATE,这是我个人的经验。
s**********o
发帖数: 14359
26
OLAP还做什么DIFF BACKUP,你的ETL JOB估计都RUN不完,不知道你的UPDATE DAILY
WEEKLY MONTHLY是指什么,注意DATABASE要用SIMPLE RECOVERY MODEL,关键还是看你
的ETL JOB怎么写的,如果去OLAP 做UPDATE大量数据,效果会很差。
e****7
发帖数: 4387
27

i am not sure if db2 has any olap support, most likely just a db engine.
Cognos does have olap support, depends on version, and it should support
molap, which will perform the best, though require storage.
with hundreds of million records you could see pretty significant
performance increase over traditional dbms based on mid range modern
hardware. but its all relative. definitely worth the effort the try
dimensionalize the data if frequent access is needed.
o********3
发帖数: 42
28
来自主题: Database版 - Database vs Data Warehouse
数据库分为联机事务系统OLTP和联机分析系统OLAP
数据仓库Data Warehouse是OLAP
f**********t
发帖数: 11
29
来自主题: Database版 - BI+Big Data+CRM 项目实践
你想在北美留学期间获得Coop/Intern的机会么?想进入高薪High Tech行业,而苦于没
有实战经验么?你想拿到项目的实战经验,并提升你所掌握的BI和Big Data的技术和技
能么? 快来加入BI+Big Data+CRM项目实践吧!
【入职条件】(提交简历,通过面试):
BI Developers:
Requirements:
• Graduate from University or College
• Hands-on Experience on Excel
• Deep knowledge of SQL, OLTP and OLAP
• Knowledge of SSIS, SSRS, SSAS or Power BI/ Power Pivot/Power View
• Competencies: Team-work, Collaboration and Communication
• Good English in oral and written
Big... 阅读全帖
z****i
发帖数: 1
30
来自主题: Quant版 - Job openings in Shanghai
A major investment bank is expanding its presence in china, and recently
has two openings in the Shanghai office for candidates who are willing
to come back. The job descriptions are below. Msg me if you are
interested.
1) Fixed Income Analytics Support and Development
Location: Shanghai, China
Main Duty:
· Analytics and systems support to Fixed Income Derivatives
trading desks, focus areas including Rates or Credit
· Implement the new pricing models based on trading desk
requirement... 阅读全帖
k*****n
发帖数: 361
31
来自主题: Statistics版 - 大家觉得这种职位薪水多少
We have modest goals: Improve the lives of others. Change the landscape of
health care forever. Leave the world a better place than we found it. Such
aspirations tend to attract a certain type of person. Crazy talented.
Compassionate. Driven. To these select few, we offer the global reach,
resources and can-do culture of a Fortune 17 company. We provide an
environment where you're empowered to be your best. We encourage you to take
risks. And we offer a world of rewards and benefits for performa... 阅读全帖
r****s
发帖数: 1025
32
来自主题: Military版 - 神文啊,三年前就预见了
http://bbs.tianya.cn/post-itinfo-137633-1.shtml
大胖球:微软之走向死亡
(1)
微软现在内交外困, 大厦将倾, 摇摇欲坠. 但万足之虫, 死而未僵, 再撑个几年还不成
问题, 甚至其中昙花一现, 回光反照也有可能. 借句股市里的话, 目前抵抗力最小的方
向是向下.
微软目前如同一盘肥肉, 旧敌(IBM, ORACLE)未除, 新敌来势凶猛, 都贪婪地欲吞微软
为快.
如果打一比方, 微软与GOOGLE之战, 好比国军对共军的内战. 目前大概是国军被迫从全
面进攻转向重点进攻的1947年初. 虽然, 还有拿下延安的大捷在后, 微软已经天时地利
人和全无, 已经是必败之势.
微软内部, 各部门争风吃醋, 争权夺利, 互相下黑手, 那是平常事了. 跟当年蒋军人人
自保, 看友军被围, 不仅不救, 反而抚掌大笑, 是惊人的类似.
而微软投敌者甚重. 高级将领投敌更是屡屡发生. GOOGLE的语音识别, 从无到有, 从有
到领先, 总共不到两年, 如果没有微软的叛将, 那根本就连做梦也别想.
(2)
人说, IBM的今天, 是微软的明天; 微软的今... 阅读全帖
m*******n
发帖数: 370
33
感觉版上大多CS的大牛们都是走java/c++路线,不知道有没有走data warehouse路线的
,谢啦
I******E
发帖数: 229
34
来自主题: JobHunting版 - 做出决定,据了ms,去另一家ms了
兄弟您是在MSTR工作,如果不是,别误导人家, 数据可视化????金融公司天
天用这个做数据报表,数据分析。
这是一家business intelligence公司,具体到技术,就是data warehouse, OLAP,
statistical modeling, data analysis,广泛应用于各大金融公司。
主要竞争对手IBM? 最主要的SAP, 其次Oracle是microsoft, IBM的相关竞争软件叫
cognos, 大的金融公司几乎没人用。
我不在MSTR,但是因为是他们的客户,我知道他们NYC的公司薪水不错,不比MSFT差,而且工作有意思的多。
c******n
发帖数: 448
35
basic required:
bachelor degree,
advanced MS excel (expecially VBA, lots of VBA coding)
SQL server/SSMS, queries, stored procedures, functions, etc.
preferred:
master degree
Tableau, SSRS, SSIS, SSAS, OLAP
1 year experience in renewable energy industry
location: texas
standard package: base/bonus/401k/insurance/benefits, etc. sponsor h1b
send resume and relative info to t**************[email protected]
if you are interested. thanks
b*****t
发帖数: 1276
36
来自主题: JobHunting版 - 公司近期会有一个job openning
junior position
java, j2ee, flex, 懂这三个就差不多了。知道的再多就是plus了。
要是知道mobile developement, sharepoint就更好了。
olap,jsf,ajax,html/javascript/css, sql all plus。
当然junior没期待那么多。
有opt也可以,能sponsor H1如果有名额的话,绿卡也是有可能的。
公司50人左右吧,企业文化很好,每年有5%bonus左右,而且会有类似ipad 的酷gadegt
作为每
年的christmas gift。
2周假期,3年后3周,4年后4周,8天holiday, 3天floating holiday。401k,
medical, dental insurance, short term and long term disability. life
insurance etc.
最重要的是要“smart”,具有成长的potential。
简历发到:l*******[email protected]
下一个可能的opening是middle/senior level,但可... 阅读全帖
s****g
发帖数: 329
37
来自主题: JobHunting版 - Data Analyst opening, Los Angeles area
洛杉矶的一个Start-up要招一个Data Analyst,现在不是很确信办不办H1-B和绿卡。比
较prefer是洛杉矶周围的。Founder是业内很有名的人,已经办成至少两个公司。Co-
founder是好莱坞明星。有兴趣可以站内联系我。要求如下:
• BA/​BS Degree in Math, Computer Science, Economics, etc.​
; Master is a plus.
• large database & data warehouse experience - i.​e.​ SQL,
OLAP cubes, Data Warehouse, etc.​
• Background structuring databases and using SQL to extract relevant
data to deduce answers to real world questions & issues
• Writing and interpr... 阅读全帖
s****g
发帖数: 329
38
来自主题: JobHunting版 - Data Analyst opening, Los Angeles area
洛杉矶的一个Start-up要招一个Data Analyst,现在不是很确信办不办H1-B和绿卡。比
较prefer是洛杉矶周围的。Founder是业内很有名的人,已经办成至少两个公司。Co-
founder是好莱坞明星。有兴趣可以站内联系我。要求如下:
• BA/​BS Degree in Math, Computer Science, Economics, etc.​
; Master is a plus.
• large database & data warehouse experience - i.​e.​ SQL,
OLAP cubes, Data Warehouse, etc.​
• Background structuring databases and using SQL to extract relevant
data to deduce answers to real world questions & issues
• Writing and interpr... 阅读全帖
w****f
发帖数: 684
39
来自主题: JobHunting版 - 贡献个智力题
Did you apply job related to database or OLAP? It like a Database
operation (my naive understanding).
Such as a table of a store's sale, three departments, each department has
three employees.
1: the sales of three departments = 3
2: "with drilldown" operation, giving sales for 9 employees = 9
3: "with cube operation, about two + total sum =13
Also tried to find an example of data structure or algorithm, not get it yet...
d*****y
发帖数: 81
40
Big Data Solution Architects will be responsible for guiding the full
lifecycle of a Hadoop solution, including requirements analysis, platform
selection, technical architecture design, application design and development
, testing, and deployment. We are looking for candidates with a broad set
of technology skills to be able to design and build robust Hadoop solutions
for big data problems and learn quickly as the platform grows.
* Deep knowledge of shared-nothing architecture principles an... 阅读全帖
L*******s
发帖数: 138
41
来自主题: JobHunting版 - [Job Opening]新放出多个职位
最近又有多个长期职位放出,公司帮办H1b,绿卡。
大家有兴趣可以站内投条联系了解详情
1. Sr. Microstrategy Developer/Architect
2. Mainframe Developer
3. SQL DBA
1.
Job Title: Sr. Microstrategy Developer/Architect
Location: Los Angeles, CA
* Participate in requirements analysis and story boarding sessions with
business users
* Prototype BI solutions and assess their "fit-for-use"
* Develop and implement Microstrategy schema for optimal query performance
.
* Design effective in memory BI strategies to meet performance
expectations ... 阅读全帖
F*******d
发帖数: 36
42
请问有谁有经验, 大概问什么问题?
朋友都不知道什么是 OLAP, BI Analytics,
申请的也不是这个职位, 是普通的SDE, 不过他有个数学的phd和cs的ms,
所以recruiter给了这个机会。
那应该还会问data structure和算法吧?
路过的请给些suggstions, 多谢多谢。
L*******r
发帖数: 1011
43
来自主题: JobHunting版 - A家诚聘
Amazon Seattle 诚聘
- SDE II (Multiple)
- Dev Manager
- TPM (Techical Program Manager)
- BI/Data Engineer II
- BI/Data manager
onCall 有印度Support team cover. 一个月难得有一两个ticket.
All positions requires industry experience.
呵呵. 站内联系. 我会告诉你是啥部门(保证你听说过),联系方式.呵呵
------------------------------------------
SDE II
Basic Qualifications
Bachelors Degree in Computer Science or related field, or 4+ year relevant
work experience
2+ years professional experience in software development
Computer Science fundamentals... 阅读全帖
m******y
发帖数: 588
44
Our group has openings for 2 Senior SQL Server Database Engineers and 1
Junior position. If you are interested, please contact m******[email protected]
Primary Responsibilities:
•Create databases from the ground up. Determine business requirements
, create logical models, build physical models and plan system architecture.
•Work with software engineers and data engineers to ensure the
overall application design is optimal.
•Conduct design and code walkthroughs, peer reviews, and prod... 阅读全帖
i********s
发帖数: 22
45
来自主题: JobHunting版 - L家的一道设计题
感觉上这个应该是个olap engine的设计题目;类似快速求sum之类的;
按照时间窗口保存top K link & count,按照时间窗口做merge即可;
Q*******1
发帖数: 91
46
怎么确定是否被学校坑了。给你看一个学校的课程表,你看看会不会被坑呢。
%%%%%%%%%%%%%%%这个是bgsu的课程设置
Fall
MSA 5020 Regression Analysis
MSA 5400 Database Management
MSA 5470 Exploratory Data Analysis
MSA 6010 Decision Optimization
MSA 6701 Analytics Project I
Spring
MSA 5160 Time-Series Analysis and Forecasting
MSA 5600 Business Intelligence
MSA 6440 Data Mining
MSA 6500 Big Data Analytics
MSA 6702 Analytics Project II
Summer
MSA 6450 Advanced Data Analytics
MSA 6600 Project Management
MSA 6703 Analytics Project III
%%%%%%%%%%%%%这个是S... 阅读全帖
Q*******1
发帖数: 91
47
怎么确定是否被学校坑了。给你看一个学校的课程表,你看看会不会被坑呢。
%%%%%%%%%%%%%%%这个是bgsu的课程设置
Fall
MSA 5020 Regression Analysis
MSA 5400 Database Management
MSA 5470 Exploratory Data Analysis
MSA 6010 Decision Optimization
MSA 6701 Analytics Project I
Spring
MSA 5160 Time-Series Analysis and Forecasting
MSA 5600 Business Intelligence
MSA 6440 Data Mining
MSA 6500 Big Data Analytics
MSA 6702 Analytics Project II
Summer
MSA 6450 Advanced Data Analytics
MSA 6600 Project Management
MSA 6703 Analytics Project III
%%%%%%%%%%%%%这个是S... 阅读全帖
d********w
发帖数: 363
48
来自主题: JobHunting版 - 系统设计能力提高捷径
品味来了。
Basics and Algorithms
The Five-Minute Rule Ten Years Later, and Other Computer Storage Rules of
Thumb (1997): This paper (and the original one proposed 10 years earlier)
illustrates a quantitative formula to calculate whether a data page should
be cached in memory or not. It is a delight to read Jim Gray approach to an
array of related problems, e.g. how big should a page size be.
AlphaSort: A Cache-Sensitive Parallel External Sort (1995): Sorting is one
of the most essential algorithms in... 阅读全帖
l*n
发帖数: 529
49
来自主题: JobHunting版 - column based db到底有什么优点?
你问的columnar应该是指做OLAP的那种,适合顺序读取并做aggregation。
读读这个可以告诉你更多为什么
http://www.benstopford.com/2015/04/28/elements-of-scale-composi
另外看这个:
http://dbmsmusings.blogspot.com/2010/03/distinguishing-two-majo
d*****n
发帖数: 5
50
Our team has a front office developer position available in Charlotte NC .
This role will work with traders directly on Front office trading and
analytic tools. No finance / working experience is required. unfortunately,
visa sponsorship may not be available at this point. Please contract me at
[email protected]/* */ thank you.
Required Skills:
• Degree in a technical field (Computer science, mathematical
finance, engineering, physics, math, etc.)
• Strong software develo... 阅读全帖
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