Architecture:

Cloud Services models (IaaS, PaaS, SaaS) 
Cloud services reference models and standardisation
Intercloud architecture models
Cloud federation and hybrid cloud infrastructure
Cloud services provisioning and management 
Cloud services delivery models, campus integration and “last mile” issues
Networking technologies for data centers, intracloud and interclouds
Cloud powered services design
Programming models and systems/tools
Cloud system design with FPGA, GPU, APU
Monitoring, management and maintenance
Operational, economic and business models 
Green data centers
Business processes, compliance and certification
Dynamic resource provisioning

 

Big Data: 

Machine learning
Data mining
Approximate and scalable statistical methods
Graph algorithms
Querying and search
Data Lifecycle Management for Big Data (sources, cleansing, federation, preservation, privacy, etc.)
Frameworks, tools and their composition
Storage and analytic architectures
Performance and debugging
Hardware optimizations for Big Data (multi-core, GPU, networking, etc.)
Data Flow management and scheduling

 

Security and Privacy:

Accountability
Audit in clouds
Authentication and authorization 
Cloud integrity and binding issues
Cryptography for/ in the cloud
Hypervisor security
Identity/ Security as a Service
Prevention of data loss or leakage
Secure, interoperable identity in the Cloud
Security and privacy in clouds
Trust and credential management 
Trusted Computing in Cloud Computing
Usability and security

 

Services and Applications:

Security services on the Cloud
Data management applications and services on the Cloud
Scheduling and application workflows on the Cloud 
Cloud application benchmarks
Cloud-based services and protocols
Cloud model and framework 
Cloud-based storage and file systems
Cloud scalability and performance
Fault-tolerance of cloud services and applications
Application development and debugging tools
Business models and economics of Cloud services
Services for improving Cloud application availability
Use cases of Cloud applications

 

Virtualization:

Server, storage, network virtualization
Resource monitoring
Virtual desktop
Resilience, fault tolerance
Modeling and performance evaluation
Security aspects
Enabling disaster recovery, job migration
Energy efficient issues

 

HPC on Cloud:

Load balancing for HPC clouds
Middleware framework for HPC clouds
Scalable scheduling for HPC clouds
HPC as a Service
Performance Modeling and Management
Programming models for HPC clouds
HPC cloud applications ; Use cases, experiences with HPC clouds
Cloud deployment systems for HPC clouds
GPU on the Cloud

 

IoT and Mobile on Cloud:

IoT cloud architectures, models
Cloud-based dynamic composition of IoT applications and services
Cloud-based context-aware IoT applications and services
Mobile cloud architectures and models
Green mobile cloud computing
Resource management in mobile cloud environments
Cloud support for mobility-aware networking and protocols
Multimedia applications in mobile cloud environments
Security, privacy and trust in mobile IoT clouds
Cloud-based mobile networks and applications, e.g., cloud-based mobile social networks, cloud-based vehicle networks, and cloud-based ehealthcare networks