Rank 1:
    AAAI: American Association for AI National Conference
    CVPR: IEEE Conf on Comp Vision and Pattern Recognition
    IJCAI: Intl Joint Conf on AI
    ICCV: Intl Conf on Computer Vision
    ICML: Intl Conf on Machine Learning
    KDD: Knowledge Discovery and Data Mining
    KR: Intl Conf on Principles of KR & Reasoning
    NIPS: Neural Information Processing Systems
    UAI: Conference on Uncertainty in AI
    ICAA: International Conference on Autonomous Agents
    ACL: Annual Meeting of the ACL (Association of Computational Linguistics)

Rank 2:
    NAACL: North American Chapter of the ACL
    AID: Intl Conf on AI in Design
    AI-ED: World Conference on AI in Education
    CAIP: Inttl Conf on Comp. Analysis of Images and Patterns
    CSSAC: Cognitive Science Society Annual Conference
    ECCV: European Conference on Computer Vision
    EAI: European Conf on AI
    EML: European Conf on Machine Learning
    GP: Genetic Programming Conference
    IAAI: Innovative Applications in AI
    ICIP: Intl Conf on Image Processing
    ICNN/IJCNN: Intl (Joint) Conference on Neural Networks
    ICPR: Intl Conf on Pattern Recognition
    ICDAR: International Conference on Document Analysis and Recognition
    ICTAI: IEEE conference on Tools with AI
    AMAI: Artificial Intelligence and Maths
    DAS: International Workshop on Document Analysis Systems
    WACV: IEEE Workshop on Apps of Computer Vision
    COLING: International Conference on Computational Liguistics
    EMNLP: Empirical Methods in Natural Language Processing
    EACL: Annual Meeting of European Association Computational Lingustics
    CoNLL: Conference on Natural Language Learning
Rank 3:
    PRICAI: Pacific Rim Intl Conf on AI
    AAI: Australian National Conf on AI
    ACCV: Asian Conference on Computer Vision
    AI*IA: Congress of the Italian Assoc for AI
    ANNIE: Artificial Neural Networks in Engineering
    ANZIIS: Australian/NZ Conf on Intelligent Inf. Systems
    CAIA: Conf on AI for Applications
    CAAI: Canadian Artificial Intelligence Conference
    ASADM: Chicago ASA Data Mining Conf: A Hard Look at DM
    EPIA: Portuguese Conference on Artificial Intelligence
    FCKAML: French Conf on Know. Acquisition & Machine Learning
    ICANN: International Conf on Artificial Neural Networks
    ICCB: International Conference on Case-Based Reasoning
    ICGA: International Conference on Genetic Algorithms
    ICONIP: Intl Conf on Neural Information Processing
    IEA/AIE: Intl Conf on Ind. & Eng. Apps of AI & Expert Sys
    ICMS: International Conference on Multiagent Systems
    ICPS: International conference on Planning Systems
    IWANN: Intl Work-Conf on Art & Natural Neural Networks
    PACES: Pacific Asian Conference on Expert Systems
    SCAI: Scandinavian Conference on Artifical Intelligence
    SPICIS: Singapore Intl Conf on Intelligent System
    PAKDD: Pacific-Asia Conf on Know. Discovery & Data Mining
    SMC: IEEE Intl Conf on Systems, Man and Cybernetics
    PAKDDM: Practical App of Knowledge Discovery & Data Mining
    WCNN: The World Congress on Neural Networks
    WCES: World Congress on Expert Systems
    INBS: IEEE Intl Symp on Intell. in Neural \& Bio Systems
    ASC: Intl Conf on AI and Soft Computing
    PACLIC: Pacific Asia Conference on Language, Information and Computation
    ICCC: International Conference on Chinese Computing
    ICADL: International Conference on Asian Digital Libraries
    RANLP: Recent Advances in Natural Language Processing
    NLPRS: Natural Language Pacific Rim Symposium
Others:
    ICRA: IEEE Intl Conf on Robotics and Automation
    NNSP: Neural Networks for Signal Processing
    ICASSP: IEEE Intl Conf on Acoustics, Speech and SP
    GCCCE: Global Chinese Conference on Computers in Education
    ICAI: Intl Conf on Artificial Intelligence
    AEN: IASTED Intl Conf on AI, Exp Sys & Neural Networks
    WMSCI: World Multiconfs on Sys, Cybernetics & Informatics
    LREC: Language Resources and Evaluation Conference

AREA: Hardware and Architecture

Rank 1:
    ASPLOS: Architectural Support for Prog Lang and OS
    ISCA: ACM/IEEE Symp on Computer Architecture
    ICCAD: Intl Conf on Computer-Aided Design
    DAC: Design Automation Conf
    MICRO: Intl Symp on Microarchitecture
    HPCA: IEEE Symp on High-Perf Comp Architecture
Rank 2:
    FCCM: IEEE Symposium on Field Programmable Custom Computing Machines
    SUPER: ACM/IEEE Supercomputing Conference
    ICS: Intl Conf on Supercomputing
    ISSCC: IEEE Intl Solid-State Circuits Conf
    HCS: Hot Chips Symp
    VLSI: IEEE Symp VLSI Circuits
    ISSS: International Symposium on System Synthesis
    DATE: IEEE/ACM Design, Automation & Test in Europe Conference
Rank 3:
    ICA3PP: Algs and Archs for Parall Proc
    EuroMICRO: New Frontiers of Information Technology
    ACS: Australian Supercomputing Conf
Unranked:
    Advanced Research in VLSI
    International Symposium on System Synthesis
    International Symposium on Computer Design
    International Symposium on Circuits and Systems
    Asia Pacific Design Automation Conference
    International Symposium on Physical Design
    International Conference on VLSI Design

AREA: Applications

Rank 1:
    I3DG: ACM-SIGRAPH Interactive 3D Graphics
    SIGGRAPH: ACM SIGGRAPH Conference
    ACM-MM: ACM Multimedia Conference
    DCC: Data Compression Conf
    SIGMETRICS: ACM Conf on Meas. & Modelling of Comp Sys
    SIGIR: ACM SIGIR Conf on Information Retrieval
    PECCS: IFIP Intl Conf on Perf Eval of Comp \& Comm Sys
    WWW: World-Wide Web Conference
Rank 2:
    EUROGRAPH: European Graphics Conference
    CGI: Computer Graphics International
    CANIM: Computer Animation
    PG: Pacific Graphics
    NOSSDAV: Network and OS Support for Digital A/V
    PADS: ACM/IEEE/SCS Workshop on Parallel \& Dist Simulation
    WSC: Winter Simulation Conference
    ASS: IEEE Annual Simulation Symposium
    MASCOTS: Symp Model Analysis \& Sim of Comp \& Telecom Sys
    PT: Perf Tools - Intl Conf on Model Tech \& Tools for CPE
    NetStore: Network Storage Symposium
    MMCN: ACM/SPIE Multimedia Computing and Networking
    JCDL: Joint Conference on Digital Libraries
Rank 3:
    ACM-HPC: ACM Hypertext Conf
    MMM: Multimedia Modelling
    ICME: Intl Conf on MMedia & Expo
    DSS: Distributed Simulation Symposium
    SCSC: Summer Computer Simulation Conference
    WCSS: World Congress on Systems Simulation
    ESS: European Simulation Symposium
    ESM: European Simulation Multiconference
    HPCN: High-Performance Computing and Networking
    Geometry Modeling and Processing
    WISE
    DS-RT: Distributed Simulation and Real-time Applications
    IEEE Intl Wshop on Dist Int Simul and Real-Time Applications
    ECIR: European Colloquium on Information Retrieval
Un-ranked:
    DVAT: IS\&T/SPIE Conf on Dig Video Compression Alg \& Tech
    MME: IEEE Intl Conf. on Multimedia in Education
    ICMSO: Intl Conf on Modelling, Simulation and Optimisation
    ICMS: IASTED Intl Conf on Modelling and Simulation

AREA: System Technology (Including networking and security)

Rank 1:
    SIGCOMM: ACM Conf on Comm Architectures, Protocols & Apps
    SPAA: Symp on Parallel Algms and Architecture
    PODC: ACM Symp on Principles of Distributed Computing
    PPoPP: Principles and Practice of Parallel Programming
    MassPar: Symp on Frontiers of Massively Parallel Proc
    RTSS: Real Time Systems Symp
    SOSP: ACM SIGOPS Symp on OS Principles
    OSDI: Usenix Symp on OS Design and Implementation
    CCS: ACM Conf on Comp and Communications Security
    S&P (Oakland): IEEE Symposium on Security and Privacy
    MOBICOM: ACM Intl Conf on Mobile Computing and Networking
    MOBIHOC: ACM International Symposium on Mobile Ad Hoc Networking and Computing
    ICNP: Intl Conf on Network Protocols
    OPENARCH: IEEE Conf on Open Arch and Network Prog
    PACT: Intl Conf on Parallel Arch and Compil Tech
    INFOCOM: Annual Joint Conf IEEE Comp & Comm Soc
Rank 2:
    USENIX Symp on Internet Tech and Sys  
    CC: Compiler Construction
    IPDPS: Intl Parallel and Dist Processing Symp
    MOBISYS: International Conference on Mobile Systems, Applications, and Services
    SenSys: ACM Conference on Embedded Networked Sensor Systems
    ICPP: Intl Conf on Parallel Processing
    ICDCS: IEEE Intl Conf on Distributed Comp Systems
    SRDS: Symp on Reliable Distributed Systems
    MPPOI: Massively Par Proc Using Opt Interconns
    ASAP: Intl Conf on Apps for Specific Array Processors
    Euro-Par: European Conf. on Parallel Computing
    Usenix Security Symposium
    NDSS: ISOC Network and Distributed System Security Symposium
    ESORICS: European Symposium on Research in Computer Security
    RAID: International Symposium on Recent Advances in Intrusion Detection
    DSN: The International Conference on Dependable Systems and Networks
    ACSAC: Annual Computer Security Applications Conference
    WCW: Web Caching Workshop
    LCN: IEEE Annual Conference on Local Computer Networks
    IPCCC: IEEE Intl Phoenix Conf on Comp & Communications
    CCC: Cluster Computing Conference
    ICC: Intl Conf on Comm
    WCNC: IEEE Wireless Communications and Networking Conference
    IPSN: International Conference on Information Processing in Sensor Networks
    IPTPS: Annual International Workshop on Peer-To-Peer Systems
    CSFW: IEEE Computer Security Foundations Workshop
Rank 3:
    MPCS: Intl. Conf. on Massively Parallel Computing Systems
    GLOBECOM: Global Comm
    IMC: Internet Measurement Conference
    IC3N: Intl Conf on Comp Comm and Networks
    ICCC: Intl Conf on Comp Communication
    NOMS: IEEE Network Operations and Management Symp
    CONPAR: Intl Conf on Vector and Parallel Processing
    VAPP: Vector and Parallel Processing
    ICPADS: Intl Conf. on Parallel and Distributed Systems
    Public Key Cryptosystems
    Fast Software Encryption
    SecureComm: Int. Conf on Security and Privacy for Emerging Areas in Communication Networks
    AsiaCCS: ACM Symposium on Information, Computer and Communications Security
    ACNS: International Conference on Applied Cryptography and Network Security
    Annual Workshop on Selected Areas in Cryptography
    Australasia Conference on Information Security and Privacy
    Int. Conf on Inofrm and Comm. Security
    Financial Cryptography
    Workshop on Information Hiding
    Smart Card Research and Advanced Application Conference
    ICON: Intl Conf on Networks
    IMSA: Intl Conf on Internet and MMedia Sys
    NCC: Nat Conf Comm
    IN: IEEE Intell Network Workshop
    Softcomm: Conf on Software in Tcomms and Comp Networks
    INET: Internet Society Conf
    Workshop on Security and Privacy in E-commerce
    EEE: IEEE Conference on e-Technology, e-Commerce and e-Service (Suggested by Roy Grønmo. Thanks)

Un-ranked:
    PARCO: Parallel Computing
    SE: Intl Conf on Systems Engineering

AREA: Programming Languages and Software Engineering

Rank 1:
    POPL: ACM-SIGACT Symp on Principles of Prog Langs
    PLDI: ACM-SIGPLAN Symp on Prog Lang Design & Impl
    OOPSLA: OO Prog Systems, Langs and Applications
    ICFP: Intl Conf on Function Programming
    JICSLP/ICLP/ILPS: (Joint) Intl Conf/Symp on Logic Prog
    ICSE: Intl Conf on Software Engineering
    FSE: ACM Conference on the Foundations of Software Engineering (inc: ESEC-FSE when held jointly)
    FM/FME: Formal Methods, World Congress/Europe
    CAV: Computer Aided Verification
Rank 2:
    CP: Intl Conf on Principles & Practice of Constraint Prog
    TACAS: Tools and Algos for the Const and An of Systems
    ESOP: European Conf on Programming
    ICCL: IEEE Intl Conf on Computer Languages
    PEPM: Symp on Partial Evalutation and Prog Manipulation
    SAS: Static Analysis Symposium
    RTA: Rewriting Techniques and Applications
    ESEC: European Software Engineering Conf
    IWSSD: Intl Workshop on S/W Spec & Design
    CAiSE: Intl Conf on Advanced Info System Engineering
    ITC: IEEE Intl Test Conf
    IWCASE: Intl Workshop on Cumpter-Aided Software Eng
    SSR: ACM SIGSOFT Working Conf on Software Reusability
    SEKE: Intl Conf on S/E and Knowledge Engineering
    ICSR: IEEE Intl Conf on Software Reuse
    ASE: Automated Software Engineering Conference
    PADL: Practical Aspects of Declarative Languages
    ISRE: Requirements Engineering
    ICECCS: IEEE Intl Conf on Eng. of Complex Computer Systems
    IEEE Intl Conf on Formal Engineering Methods
    Intl Conf on Integrated Formal Methods
    FOSSACS: Foundations of Software Science and Comp Struct
Rank 3:
    FASE: Fund Appr to Soft Eng
    APSEC: Asia-Pacific S/E Conf
    PAP/PACT: Practical Aspects of PROLOG/Constraint Tech
    ALP: Intl Conf on Algebraic and Logic Programming
    PLILP: Prog, Lang Implentation & Logic Programming
    LOPSTR: Intl Workshop on Logic Prog Synthesis & Transf
    ICCC: Intl Conf on Compiler Construction
    COMPSAC: Intl. Computer S/W and Applications Conf
    CSM: Conf on Software Maintenance
    TAPSOFT: Intl Joint Conf on Theory & Pract of S/W Dev
    WCRE: SIGSOFT Working Conf on Reverse Engineering
    AQSDT: Symp on Assessment of Quality S/W Dev Tools
    IFIP Intl Conf on Open Distributed Processing
    Intl Conf of Z Users
    IFIP Joint Int'l Conference on Formal Description Techniques and Protocol Specification, Testing, And Verificati
    PSI (Ershov conference)
    UML: International Conference on the Unified Modeling Language
    EDOC: IEEE Conference on Enterprise Computing (Suggested by Roy Grønmo.)
Un-ranked:
    Australian Software Engineering Conference
    IEEE Int. W'shop on Object-oriented Real-time Dependable Sys. (WORDS)
    IEEE International Symposium on High Assurance Systems Engineering
    The Northern Formal Methods Workshops
    Formal Methods Pacific
    Int. Workshop on Formal Methods for Industrial Critical Systems
    JFPLC - International French Speaking Conference on Logic and Constraint Programming
    L&L - Workshop on Logic and Learning
    SFP - Scottish Functional Programming Workshop
    HASKELL - Haskell Workshop
    LCCS - International Workshop on Logic and Complexity in Computer Science
    VLFM - Visual Languages and Formal Methods
    NASA LaRC Formal Methods Workshop
    (1) FATES - A Satellite workshop on Formal Approaches to Testing of Software
    (1) Workshop On Java For High-Performance Computing
    (1) DSLSE - Domain-Specific Languages for Software Engineering
    (1) FTJP - Workshop on Formal Techniques for Java Programs
    (*) WFLP - International Workshop on Functional and (Constraint) Logic Programming
    (*) FOOL - International Workshop on Foundations of Object-Oriented L anguages
    (*) SREIS - Symposium on Requirements Engineering for Information Sec urity
    (*) HLPP - International workshop on High-level parallel programming and applications
    (*) INAP - International Conference on Applications of Prolog
    (*) MPOOL - Workshop on Multiparadigm Programming with OO Languages
    (*) PADO - Symposium on Programs as Data Objects
    (*) TOOLS: Int'l Conf Technology of Object-Oriented Languages and Systems
    (*) Australasian Conference on Parallel And Real-Time Systems

AREA: Algorithms and Theory
Rank 1:
    STOC: ACM Symp on Theory of Computing
    FOCS: IEEE Symp on Foundations of Computer Science
    COLT: Computational Learning Theory
    LICS: IEEE Symp on Logic in Computer Science
    SCG: ACM Symp on Computational Geometry
    SODA: ACM/SIAM Symp on Discrete Algorithms
    SPAA: ACM Symp on Parallel Algorithms and Architectures
    PODC: ACM Symp on Principles of Distributed Computing
    ISSAC: Intl. Symp on Symbolic and Algebraic Computation
    CRYPTO: Advances in Cryptology
    EUROCRYPT: European Conf on Cryptography
Rank 2:
    CONCUR: International Conference on Concurrency Theory
    ICALP: Intl Colloquium on Automata, Languages and Prog
    STACS: Symp on Theoretical Aspects of Computer Science
    CC: IEEE Symp on Computational Complexity
    WADS: Workshop on Algorithms and Data Structures
    MFCS: Mathematical Foundations of Computer Science
    SWAT: Scandinavian Workshop on Algorithm Theory
    ESA: European Symp on Algorithms
    IPCO: MPS Conf on integer programming & comb optimization
    LFCS: Logical Foundations of Computer Science
    ALT: Algorithmic Learning Theory
    EUROCOLT: European Conf on Learning Theory
    WDAG: Workshop on Distributed Algorithms
    ISTCS: Israel Symp on Theory of Computing and Systems
    ISAAC: Intl Symp on Algorithms and Computation
    FST&TCS: Foundations of S/W Tech & Theoretical CS
    LATIN: Intl Symp on Latin American Theoretical Informatics
    RECOMB: Annual Intl Conf on Comp Molecular Biology
    CADE: Conf on Automated Deduction
    IEEEIT: IEEE Symposium on Information Theory
    Asiacrypt
Rank 3:
    MEGA: Methods Effectives en Geometrie Algebrique
    ASIAN: Asian Computing Science Conf
    CCCG: Canadian Conf on Computational Geometry
    FCT: Fundamentals of Computation Theory
    WG: Workshop on Graph Theory
    CIAC: Italian Conf on Algorithms and Complexity
    ICCI: Advances in Computing and Information
    AWTI: Argentine Workshop on Theoretical Informatics
    CATS: The Australian Theory Symp
    COCOON: Annual Intl Computing and Combinatorics Conf
    UMC: Unconventional Models of Computation
    MCU: Universal Machines and Computations
    GD: Graph Drawing
    SIROCCO: Structural Info & Communication Complexity
    ALEX: Algorithms and Experiments
    ALG: ENGG Workshop on Algorithm Engineering
    LPMA: Intl Workshop on Logic Programming and Multi-Agents
    EWLR: European Workshop on Learning Robots
    CITB: Complexity & info-theoretic approaches to biology
    FTP: Intl Workshop on First-Order Theorem Proving (FTP)
    CSL: Annual Conf on Computer Science Logic (CSL)
    AAAAECC: Conf On Applied Algebra, Algebraic Algms & ECC
    DMTCS: Intl Conf on Disc Math and TCS
Un-ranked:
    Information Theory Workshop

AREA: Data Bases

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
    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
    CIKM: Intl. Conf on Information and Knowledge Management
    SSDBM: Intl Conf on Scientific and Statistical DB Mgmt
    CoopIS - Conference on Cooperative Information Systems
    ER - Intl Conf on Conceptual Modeling (ER)
Rank 3:
    COMAD: Intl Conf on Management of Data
    BNCOD: British National Conference on Databases
    ADC: Australasian Database Conference
    ADBIS: Symposium on Advances in DB and Information Systems
    DaWaK - Data Warehousing and Knowledge Discovery
    RIDE Workshop
    IFIP-DS: IFIP-DS Conference
    IFIP-DBSEC - IFIP Workshop on Database Security
    NGDB: Intl Symp on Next Generation DB Systems and Apps
    ADTI: Intl Symp on Advanced DB Technologies and Integration
    FEWFDB: Far East Workshop on Future DB Systems
    MDM - Int. Conf. on Mobile Data Access/Management (MDA/MDM)
    ICDM - IEEE International Conference on Data Mining
    VDB - Visual Database Systems
    IDEAS - International Database Engineering and Application Symposium
Others:
    ARTDB - Active and Real-Time Database Systems
    CODAS: Intl Symp on Cooperative DB Systems for Adv Apps
    DBPL - Workshop on Database Programming Languages
    EFIS/EFDBS - Engineering Federated Information (Database) Systems
    KRDB - Knowledge Representation Meets Databases
    NDB - National Database Conference (China)
    NLDB - Applications of Natural Language to Data Bases
    KDDMBD - Knowledge Discovery and Data Mining in Biological Databases Meeting
    FQAS - Flexible Query-Answering Systems
    IDC(W) - International Database Conference (HK CS)
    RTDB - Workshop on Real-Time Databases
    SBBD: Brazilian Symposium on Databases
    WebDB - International Workshop on the Web and Databases
    WAIM: Interational Conference on Web Age Information Management
    (1) DASWIS - Data Semantics in Web Information Systems
    (1) DMDW - Design and Management of Data Warehouses
    (1) DOLAP - International Workshop on Data Warehousing and OLAP
    (1) DMKD - Workshop on Research Issues in Data Mining and Knowledge Discovery
    (1) KDEX - Knowledge and Data Engineering Exchange Workshop
    (1) NRDM - Workshop on Network-Related Data Management
    (1) MobiDE - Workshop on Data Engineering for Wireless and Mobile Access
    (1) MDDS - Mobility in Databases and Distributed Systems
    (1) MEWS - Mining for Enhanced Web Search
    (1) TAKMA - Theory and Applications of Knowledge MAnagement
    (1) WIDM: International Workshop on Web Information and Data Management
    (1) W2GIS - International Workshop on Web and Wireless Geographical Information Systems
    * CDB - Constraint Databases and Applications
    * DTVE - Workshop on Database Technology for Virtual Enterprises
    * IWDOM - International Workshop on Distributed Object Management
    * IW-MMDBMS - Int. Workshop on Multi-Media Data Base Management Systems
    * OODBS - Workshop on Object-Oriented Database Systems
    * PDIS: Parallel and Distributed Information Systems

AREA: Miscellaneous

Rank 1:
Rank 2:
    AMIA: American Medical Informatics Annual Fall Symposium
    DNA: Meeting on DNA Based Computers
Rank 3:
    MEDINFO: World Congress on Medical Informatics
    International Conference on Sequences and their Applications
    ECAIM: European Conf on AI in Medicine
    APAMI: Asia Pacific Assoc for Medical Informatics Conf
    SAC: ACM/SIGAPP Symposium on Applied Computing
    ICSC: Internal Computer Science Conference
    ISCIS: Intl Symp on Computer and Information Sciences
    ICSC2: International Computer Symposium Conference
    ICCE: Intl Conf on Comps in Edu
    Ed-Media
    WCC: World Computing Congress
    PATAT: Practice and Theory of Automated Timetabling

Not Encouraged (NO INTENTION TO OFFEND THESE ORGANIZERS):
    International Multiconferences in Computer Science
    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

来源：http://blog.csdn.net/abcjennifer/article/details/7468231#