Database administrators of Online Transaction Processing (OLTP) systems constantly face
difficult questions. For example," What is the maximum throughput I can sustain with my …

We present a system for the annotation and augmentation of mountain photographs. The
key issue resides in the registration of a given photograph with a 3D geo-referenced terrain …

NoSQL databases have emerged as a backend to support Big Data applications. NoSQL
databases are characterized by horizontal scalability, schema-free data models, and easy …

In this article, we introduce TAS (Transactional Auto Scaler), a system for automating the
elastic scaling of replicated in-memory transactional data grids, such as NoSQL data stores …

Considerable research has been conducted into software system performance modelling
leading to various software performance engineering methodologies. Most of these …

We present an analytical performance modeling approach for concurrency control
algorithms in the context of Software Transactional Memories (STMs). We consider a …

Software Transactional Memory (STM) is recognized as an effective programming paradigm
for concurrent applications. On the other hand, a core problem to cope with in STM deals …

Transactional Memory (TM) is an emerging paradigm that promises to ease the
development of parallel applications. Due to its inherently speculative nature, however, TM …

Transaction Processing (TP) plays a primary role in the design and implementation of IT
applications and services. Many TP systems exploit lock-based concurrency control to …

This paper presents PROMPT, a PeRfOrmance Model for Partially replicated in-memory
Transactional cloud stores. PROMPT combines white box Analytical Modelling and Machine …