Top Tier Conferences(Rank 1)
(DB) VLDB: Very Large Data Bases (since 1975)
(DB) SIGMOD: ACM SIGMOD Conf on Management of Data (since 1975)
(DB) PODS: ACM SIGMOD Conf on Principles of DB Systems (since 1982)
(DB) ICDE: IEEE Intl Conf on Data Engineering (since 1984)
(DB) ICDT: Intl Conf on Database Theory (since 1986)
(DB) EDBT: Extending DB Technology (since 1988)
(DM) SIGKDD: ACM Knowledge Discovery and Data Mining (since 1995)
(DM) ICDM: IEEE International Conference on Data Mining (since 2001)
(AI) IJCAI: Intl Joint Conf on AI (since 1969)
(AI) AAAI: American Association for AI National Conference (since 1980)
(AI) ICML: Intl Conf on Machine Learning (since 1984)
(AI) UAI: Conference on Uncertainty in AI (since 1985)
(AI) UMAP: Intl Conf on User Modeling, Adaptation and Personalization (since 1985) [Was UM: Intl Conf on User Modeling until 2009]
(AI) NIPS: Neural Information Processing Systems (since 1987)
(AI) AAMAS: International Conference on Autonomous Agents and Multiagent Systems (since 1997) [Was AGENTS: International Conference on Autonomous Agents until 2002]
(NL) ACL: Association for Computational Linguistics (since 1963)
(ED) AIED: Intl Conf on Artificial Intelligence in Education (since 1983)
(ED) ITS: Intelligent Tutoring System Conference (since 1988)
(IR) SIGIR: ACM SIGIR Conf on Information Retrieval (since 1971)
(W3) WWW: World-Wide Web Conference (since 1994)
(W3) ICIS: Intl Conf on Information Systems (since 1983)
(DP) PPoPP: Principles and Practice of Parallel Programming (since 1988)
(DP) PACT: Intl Conf on Parallel Arch and Compil Tech (since 1990)
(DP) IPDPS: IEEE Intl Parallel and Dist Processing Symp (since 1986)
(DP) ICPP: Intl Conf on Parallel Processing (SINCE 1972)
(DP) Euro-Par: European Conf. on Parallel Computing (SINCE 1995)
(GV)SIGGRAPH: ACM SIGGRAPH Conference (since 1974)
(GV) CVPR: IEEE Conf on Comp Vision and Pattern Recognition (since 2000)
(GV)ICCV: Intl Conf on Computer Vision (since 1987)
(GV)I3DG: ACM-SIGRAPH Interactive 3D Graphics
(MM) ACM-MM: ACM Multimedia Conference (since 1993)
(NC) SIGCOMM: ACM Conf on Applic, Techno, Archit, and Protocols for Comp Comm (since 1977)
(NC) PERFORMANCE: IFIP Intl Symp on Computer Performance, Modeling, Measurements &Evaluation (since 1980)
(NC) SIGMETRICS: ACM Conf on Meas. &Modelling of Comp Sys (since 1981)
(NC) INFOCOM: Annual Joint Conf IEEE Comp &Comm Soc (since 1982)
(NC) MOBICOM: ACM Intl Conf on Mobile Computing and Networking (since 1995)
(SE) IEEE Symposium on Security and Privacy (since 1980)
(SE) CCS: ACM Conf on Comp and Communications Security (since 1993)
(OS) SOSP: ACM SIGOPS Symp on OS Principles (since 1967)
(OS) OSDI: Usenix Symp on OS Design and Implementation (since 1994)
Other 1st tier conferences:
(..) FOCS: IEEE Symposium on Foundations of Computer Science (since 1959)
(..) STOC: ACM Symposium on Theory of Computing (since 1969)
(..) ICALP: International Colloquium on Automata, Languages and Programming (since 1973)
(..) SODA: SIAM/ACM Symposium on Discrete Algorithms (since 1990)
(..) ISMB: Intl Conf on Intelligent Systems for Molecular Biology (since 1993)
Second Tier Conferences(Rank 2)
(DB) ER: Intl Conf on Conceptual Modeling (Conf on the Entity Relationship Approach) (Since 1979)
(DB) SSDBM: Intl Conf on Scientific and Statistical DB Mgmt (since 1981)
(DB) FODO: Intl Conf on Foundation on Data Organization (since 1981)
(DB) DASFAA: Database Systems for Advanced Applications (since 1989)
(DB) SSD: Intl Symp on Large Spatial Databases (since 1989)
(DB) DOOD: Deductive and Object-Oriented Databases (since 1989)
(DB) CIKM: Intl. Conf on Information and Knowledge Management (since 1992)
(DB) CoopIS: Conference on Cooperative Information Systems (since 1993)
(DM) PAKDD: Pacific-Asia Conf on Know. Discovery &Data Mining (since 1997)
(DM) PKDD: European Conf on Principles and Practice of Knowledge Discovery in Databases (since 1997)
(DM) DAWAK: Intl Conf on Data Warehousing and Knowledge Discovery (since 1999)
(DM) SDM: SIAM International Conference on Data Mining (since 2001)
(AI) AID: Intl Conf on AI in Design (since 1991)
(AI) ECAI: European Conf on AI (since 1974)
(AI) ECML: European Conf on Machine Learning (since 1986)
(AI) GECCO: Genetic and Evolutionary Computation Conference (since 1999)
(AI) ICGA: Intl Conf on Genetic Algorithms (since 1991)
(AI) GP: Genetic Programming Conference (since 1995)
(AI) IAAI: Innovative Applications of AI (since 1989)
(AI) ICIP: Intl Conf on Image Processing (since 1994)
(AI) ICNN/IJCNN: Intl (Joint) Conference on Neural Networks (since 1989)
(AI) ICPR: Intl Conf on Pattern Recognition (since 1989)
(AI) ICDAR: Intl Conf on Document Analysis and Recognition (since 1991)
(AI) ICTAI: IEEE conference on Tools with AI (since 1989)
(AI) AMAI: Intl Symp on Artificial Intelligence and Maths (since 1990)
(NL) EACL - European Association for Computational Linguistics (since 1983)
(NL) COLING: Intl Conf on Computational Liguistics (since 1966)
(NL) EMNLP: Conf on Empirical Methods in Natural Language Processing (since 1996)
(ED) ICALT: IEEE Intl Conf on Advanced Learning Technologies (since 2001)
(IR) TREC: Text REtrieval Conference (since 1992)
(IR) ECIR: European Conference on Information Retrieval (since 1979)
(W3) HYPERTEXT: ACM Conference on Hypertext and Hypermedia (since 1987)
(W3) EC-web: Intl Conf on Electronic Commerce and Web Technologies (since 2000)
(W3) WISE: Intl Conf on Web Information Systems Engineering (since 2000)
(W3) ICWS: IEEE Intl Conf on Web Services (since 2003)
(DP) ICDCS: IEEE Intl Conf on Distributed Comp Systems (since 1980)
(DP) PODC: ACM Symp on Principles of Distributed Computing (since 1982)
(DP) SPAA: ACM Symp on Parallel Algms and Architecture (since 1989)
(DP) ASAP: Intl Conf on Apps for Specific Array Processors
(DP) CCC: Cluster Computing Conference
(DP) ICPADS: IEEE Intl Conf on Parallel and Distributed Systems ( Since 1994 ?)
(GV) ECCV: European Conference on Computer Vision (since 1998)
(GV) EUROGRAPH: European Graphics Conference
(GV) CGI: Computer Graphics International (since 1997)
(GV) CA: Computer Animation (since 1997)
(MM) IEEE-MM: IEEE Intl Conf on Multimedia Computing and Sys
(MM) MMCN: ACM/SPIE Multimedia Computing and Networking
(MM) ICME: Intl Conf on MMedia &Expo (since 2000)
(NC) NetStore: Network Storage Symposium
(NC) IC3N: Intl Conf on Comp Comm and Networks
(NC) LCN: IEEE Annual Conference on Local Computer Networks
(NC) ICC: Intl Conf on Comm
(NC) WCNC: IEEE Wireless Communications and Networking Conference
(SE) SECURITY: Usenix Security Symposium (since 1992)
(SE) ESORICS: European Symposium on Research in Computer Security (since 1990)
(OS) IEEE Annual Simulation Symposium (since 1968)
(OS) MASCOTS: Symp Model Analysis &Sim on Comp &Telecom Sys (since 1993)
Other 2nd tier conferences:
(..) CC: Compiler Construction (since 1986)
Third Tier Conferences(Rank 3)
(DB) DEXA: Database and Expert System Applications (since 1990)
(DB) IDEAS: Intl Database Engineering and Application Symposium (since 1997)
(DB) COMAD: Intl Conf on Management of Data (since 1989)
(DB) BNCOD: British National Conference on Databases (since 1981)
(DB) SBBD: Simpósio Brasileiro de Bancos de Dados (since 1986)
(DB) ADC: Australasian Database Conference (since 1990)
(DB) ADBIS: Symposium on Advances in DB and Information Systems (since 1993)
(DB) DB&IS: Intl. Baltic Conference on Data Bases and Information Systems (since 1994)
(DB) IFIP-DS: IFIP-DS Conference
(DB) NGDB: Intl Symp on Next Generation DB Systems and Apps
(DB) ADTI: Intl Symp on Advanced DB Technologies and Integration
(DB) MDM - Int. Conf. on Mobile Data Access/Management (MDA/MDM)
(DB) VDB - Visual Database Systems ( Since 1989 )
(DM) ADMA: Intl Conf on Advanced Data Mining and Applications (since 2005)
(DM) ICDM: Industrial Conference on Data Mining (since 2001)
(DM) AusDM: Australasian Data Mining Conference (since 2002)
(DM) EGC: Journées Francophones Extraction et Gestion de Connaissances (since 2000)
(AI) PRICAI: Pacific Rim Intl Conf on AI (since 1990)
(AI) AusAI: Australian Joint Conf on AI (since 1987)
(AI) ANNIE: Artificial Neural Networks in Engineering
(AI) ANZIIS: Australian/NZ Conf on Intelligent Inf. Systems
(AI) CAIA: Conf on AI for Applications
(AI) CAAI: Canadian Artificial Intelligence Conference
(AI) ICANN: International Conf on Artificial Neural Networks
(AI) ICCB: International Conference on Case-Based Reasoning
(AI) ICGA: International Conference on Genetic Algorithms
(AI) ICONIP: Intl Conf on Neural Information Processing
(AI) ICMS: International Conference on Multiagent Systems
(AI) ICPS: International conference on Planning Systems
(AI) PACES: Pacific Asian Conference on Expert Systems
(AI) SCAI: Scandinavian Conference on Artifical Intelligence
(NL) NLDB: Applications of Natural Language to Data Bases (since 1995)
(ED) ICCE: Intl Conf on Computers in Education
(ED) EDmedia: World Conf on Educational Multimedia, Hypermedia &Telecommunications
(ED) AH: Intl Conf on Adaptive Hypermedia and Adaptive Web-Based Systems
(W3) APweb: Asia Pacific Web Conference (since 1998)
(W3) WAIM: Intl Conf on Web-Age Information Management (since 2000)
(W3) SAINT: Intl Symposium on Applications and the Internet (since 2001)
(DP) EGC: European Grid Conference (since 2005)
(DP) MPPOI: Massively Par Proc Using Opt Interconns
(DP) MassPar: Symp on Frontiers of Massively Parallel Proc (since 1990)
(DP) SRDS: Symp on Reliable Distributed Systems (SINCE 1982)
(DP) DAIS: IFIP Intl Conf on Distributed Applications and Interoperable Systems
(GV) ACCV: Asian Conference on Computer Vision (since 1993)
(MM) MMM: Multimedia Modelling (since 1997)
(NC) HPCN: High-Performance Computing and Networking Geometry Modeling and Processing
(SE) ARES: Intl Conf on Availability, Reliability and Security
(OS) DSS: Distributed Simulation Symposium
(OS) SCSC: Summer Computer Simulation Conference
(OS) WCSS: World Congress on Systems Simulation
(OS) ESS: European Simulation Symposium
(OS) ESM: European Simulation Multiconference
Other 3rd tier conferences:
(..) ICCSA: Intl Conf on Computational Science and its Applications (since 2001)
(..) KES: Knowledge-Based Intelligent Information and Engineering Systems (since 1997)
(..) ICADL: Intl Conf on Asian Digital Libraries (since 1998)
(..) ISORC: IEEE Intl Symposium on Object-oriented Real-time distributed Computing (since 1998)
(..) ISIM: Intl Conf on Information Systems Implementation and Modelling (since 1998)
(..) IEEEIS: IEEE Conference On Intelligent Systems (since 2004)
(..) ACE: ACM SIGCHI Intl Conf on Advances in Computer Entertainment Technology (since 2004)
(..) ICGeS: Intl Conf on Global E-Security (since 2005)
(..) PERVASIVE: Intl Conf on Pervasive Computing (since 2003)
(..) DGO: Intl Conf on Digital Government Research (since 2000)
Unranked Conferences(Rank ?)
(OS) FAST: Usenix conference on File and Storage technologies (Since 2002)
(W3) ECOWS: IEEE European Conference on Web Services (since 2003)
(W3) ICSOC: International Conference on Service Oriented Computing (since 2003)
(W3) ICWE: International Conference on Web Engineering (since 2000)
(..) ICDE: World Conf on Open learning and Distance Education (Since 1981)
(..) WCCE: IFIP World Conf on Computers in Education (Since 1981)
(..) CAiSE: Conf on Advanced Information Systems Engineering (since 1988)
(..) AAMAS: Intl Joint Conf on Autonomous Agents and Multiagent Systems (Since 2002)
(..) ICVS: Intl Conf on Computer Vision Systems (since 1997)
(..) AISC: Intl Conf on Artificial Intelligence and Sybolic Computing (since 1992)
(..) CCC (was CoCo): IEEE Conf on Computational Complexity (since 1986)
(..) AVI: Working Conf on Advanced Visual Interfaces (since 1992)
(..) CRYPTO: Intl Cryptology Conf (since 1981)
(..) SAC: ACM Symposium on Applied Computing (since 1986)
(..) INFOVIS: IEEE Symposium on Information Visualization (since 1995)
(..) VIS: IEEE Visualization (since 1990)
(..) CCGRID: IEEE International Symposium on Cluster Computing and the Grid (since 2001)
(..) CBMS: IEEE International Symposium on Computer-Based Medical Systems (since 1988)
(..) JCDL: ACM/IEEE Joint Conference on Digital Libraries (was ADL: Advances in Digital Libraries) (since 1995)
(..) GIS: ACM Intl Symposium of Advances in Geographic Systems (since 1993)
(..) ICPADS: IEEE Intl Conf on Parallel and Distributed Systems (since 1994)
(..) SEKE: Intl Conf on Software Engineering and Knowledge Engineering (since 1989)
Not Encouraged (due to dubious referee process):
Intl Multiconferences in Computer Science -- 14 joint int'l confs.
SCI: World Multi confs on systemics, sybernetics and informatics
SSGRR: International conf on Advances in Infrastructure for e-B, e-Edu and e-Science and e-Medicine
IASTED conferences
CCCT: International Conference on Computer, Communication and Control Technologies
IARIA: International Academy, Research, and Industry Association
WASET: World Academy of SAcience, Engineering and Technology
<util:property-path id="property-path" path="helloWorld.hello"/>/bin/arch = unknown
/usr/bin/arch -k = unknown
/usr/convex/getsysinfo = unknown
/usr/bin/hostinfo = Mach kernel version:
Darwin Kernel Version 11.4.0d1: Fri May 18 16:05:31 EDT 2012root:xnu-1699.26.8/BUILD/obj//RELEASE_I386
Kernel configured for up to 4 processors.
4 processors are physically available.
4 processors are logically available.
Processor type: i486 (Intel 80486)
Processors active: 0 1 2 3
Tomcat有很多方面，我从内存、并发、缓存四个方面介绍优化方法。一.Tomcat内存优化
Tomcat内存优化主要是对 tomcat 启动参数优化，我们可以在 tomcat 的启动脚本 catalina.sh 中设置 JAVA_OPTS 参数。
JAVA_OPTS参数说明
-server 启用jdk 的 server 版；
-Xms java虚拟机初始化时的最小内存；
-Xmx java虚拟机可使用的最大内存；
-XX:PermSize 内存永久保留区域
-XX:MaxPermSize 内存最大永久保留区域
服务器参数配置
现公司服务器内存一般都可以加到最大2G ，所以可以采取以下配置：
JAVA_OPTS='-Xms1024m -Xmx2048m -XX:PermSize=256M -XX:MaxNewSize=256m -XX:MaxPermSize=256m'
配置完成后可重启Tomcat ，通过以下命令进行查看配置是否生效：
首先查看Tomcat 进程号：
sudo lsof -i:9027
我们可以看到Tomcat 进程号是 12222 。
查看是否配置生效：
sudo jmap – heap 12222
我们可以看到MaxHeapSize 等参数已经生效。、
二.Tomcat并发优化
1.Tomcat连接相关参数
在Tomcat 配置文件 server.xml 中的 配置中
1>参数说明
minProcessors：最小空闲连接线程数，用于提高系统处理性能，默认值为 10
maxProcessors：最大连接线程数，即：并发处理的最大请求数，默认值为 75
acceptCount：允许的最大连接数，应大于等于 maxProcessors ，默认值为 100
enableLookups：是否反查域名，取值为： true 或 false 。为了提高处理能力，应设置为 false
connectionTimeout：网络连接超时，单位：毫秒。设置为 0 表示永不超时，这样设置有隐患的。通常可设置为30000 毫秒。
其中和最大连接数相关的参数为maxProcessors 和 acceptCount 。如果要加大并发连接数，应同时加大这两个参数。
web server允许的最大连接数还受制于操作系统的内核参数设置，通常 Windows 是 2000 个左右， Linux 是 1000 个左右。
2>Tomcat中的配置示例
<Connector port="9027"
protocol="HTTP/1.1"
maxHttpHeaderSize="8192"
minProcessors="100"
maxProcessors="1000"
acceptCount="1000"
redirectPort="8443"
disableUploadTimeout="true"/>
2.调整连接器connector的并发处理能力
1>参数说明
maxThreads 客户请求最大线程数
minSpareThreads Tomcat初始化时创建的 socket 线程数
maxSpareThreads Tomcat连接器的最大空闲 socket 线程数
enableLookups 若设为true, 则支持域名解析，可把 ip 地址解析为主机名
redirectPort 在需要基于安全通道的场合，把客户请求转发到基于SSL 的 redirectPort 端口
acceptAccount 监听端口队列最大数，满了之后客户请求会被拒绝（不能小于maxSpareThreads ）
connectionTimeout 连接超时
minProcessors 服务器创建时的最小处理线程数
maxProcessors 服务器同时最大处理线程数
URIEncoding URL统一编码
2>Tomcat中的配置示例
<Connector port="9027"
protocol="HTTP/1.1"
maxHttpHeaderSize="8192"
maxThreads="1000"
minSpareThreads="100"
maxSpareThreads="1000"
minProcessors="100"
maxProcessors="1000"
enableLookups="false"
URIEncoding="utf-8"
acceptCount="1000"
redirectPort="8443"
disableUploadTimeout="true"/>
3.Tomcat缓存优化
1>参数说明
c ompression 打开压缩功能
compressionMinSize 启用压缩的输出内容大小，这里面默认为2KB
compressableMimeType 压缩类型
connectionTimeout 定义建立客户连接超时的时间. 如果为 -1, 表示不限制建立客户连接的时间
2>Tomcat中的配置示例
<Connector port="9027"
protocol="HTTP/1.1"
maxHttpHeaderSize="8192"
maxThreads="1000"
minSpareThreads="100"
maxSpareThreads="1000"
minProcessors="100"
maxProcessors="1000"
enableLookups="false"
compression="on"
compressionMinSize="2048"
compressableMimeType="text/html,text/xml,text/javascript,text/css,text/plain"
connectionTimeout="20000"
URIEncoding="utf-8"
acceptCount="1000"
redirectPort="8443"
disableUploadTimeout="true"/>
4.参考配置
1>旧有的配置
参考网络对服务器做过如下配置，拿出来分享下：
<Connector port="9027"
protocol="HTTP/1.1"
maxHttpHeaderSize="8192"
maxThreads="1000"
minSpareThreads="25"
maxSpareThreads="75"
enableLookups="false"
compression="on"
compressionMinSize="2048"
compressableMimeType="text/html,text/xml,text/javascript,text/css,text/plain"
connectionTimeout="20000"
URIEncoding="utf-8"
acceptCount="200"
redirectPort="8443"
disableUploadTimeout="true" />
后来发现在访问量达到3 百万多的时候出现性能瓶颈。
2>更改后的配置
<Connector port="9027"
protocol="HTTP/1.1"
maxHttpHeaderSize="8192"
maxThreads="1000"
minSpareThreads="100"
maxSpareThreads="1000"
minProcessors="100"
maxProcessors="1000"
enableLookups="false"
compression="on"
compressionMinSize="2048"
compressableMimeType="text/html,text/xml,text/javascript,text/css,text/plain"
connectionTimeout="20000"
URIEncoding="utf-8"
acceptCount="1000"
redirectPort="8443"
disableUploadTimeout="true"/>
