Search Results

Chen's Entity/Relationship (E/R) framework is a lingua franca for well-designed databases. We define E/R graphs as property graphs that are instances of E/R diagrams. As the latter are a subclass of PG-Schema, E/R modeling constitutes a methodology for ...

Mobile applications are constantly updated to adapt to evolving user and environment requirements. As changes are successively implemented to promote user satisfaction, the complexity of mobile apps increases, and overlooked quality aspects (e.g. ...

We parameterize schemata in Boyce-Codd Normal Form (BCNF) by the number n of minimal keys they exhibit. We show that n quantifies a trade-off between access variety and update complexity. Indeed, access variety refers to the number of different ways by ...

Edge servers must routinely undergo maintenance to ensure the environment's performance and security. During maintenance, applications hosted by outdated servers must be relocated to alternative servers to avoid downtime. In distributed edges with ...

Merkle tree is a widely used tree structure for authentication of data/metadata in a secure system. Even though recent state-of-the art systems use MAC based authentication to protect the actual data, they still use smaller-sized MT, namely Bonsai ...

In-memory key-value stores are often used to speed up Big Data workloads on modern HPC clusters. To maintain their high availability, erasure coding has been recently adopted as a low-cost redundancy scheme instead of replication. Existing erasure-coded ...

The goal of classical normalization is to maintain data consistency under updates, with a minimum level of effort. Given functional dependencies (FDs) alone, this goal is only achievable in the special case an FD-preserving Boyce-Codd Normal Form (BCNF) ...

Vulnerabilities in Internet of Things (IoT) devices have raised the need for a reliable and secure firmware update mechanism suitable for devices with resource constraints. Incorporating such an update mechanism is a fundamental requirement for fixing ...

Context: Android operating system always brings new releases and updates to improve security, increase performance and bring a better user experience. When Google announces a new release, a whole chain of changes is triggered in cascade, causing many ...

The Domain Name System (DNS) was designed to return matching records efficiently for queries for data that are relatively static. When those records change frequently, DNS is still efficient at returning the updated results when polled, as long as the ...

The electronic attacks that threaten the security of networks and information are increasing, especially during the current rapid electronic revolution. Therefore, it is necessary to use surveillance and protection systems in order to secure ...

Decision-making requirements differ from one decisionmaker to another, hence the need to study decision-making requirements personalization. Customization is an effective response to the information overload problem by injecting into queries more ...

Context: Secondary studies should be updated from time to time to include new evidence to preserve their value. It is recognized that one search technique to update secondary studies is forward snowballing and that the number of studies identified is ...

Due to the increasing complexity of Data Warehouse (DW), continuous attention must be paid for evaluation of their quality throughout their design and development [1]. A good requirements model quality may lead to a good DW quality [2]. Various authors ...

This paper investigates techniques for detecting independence of SPARQL queries from updates. A query is independent of an update when the execution of the update does not affect the result of the query. Determining independence is especially useful in ...

One of the most important concepts that must be understood by students of parallel computer architecture is cache coherence. Processors may change the value of shared variables by writing them in their private caches. These changes must be propagated to ...

Updating rules in the flow tables of SDN switches are complex and time-consuming. Therefore, we propose a cache-based scheme (named FlowShadow) to improve the packet processing performance and keep continuous operating while updating rules in the flow ...

Searchable (symmetric) encryption allows encryption while still enabling search for keywords. Its immediate application is cloud storage where a client outsources its files while the (cloud) service provider should search and selectively retrieve those. ...

In a searchable symmetric encryption (SSE) scheme, a client can store encrypted documents to a server in such way that he can later retrieve the encrypted documents which contain a specific keyword, keeping the keyword and the documents secret. In this ...

The discussed "Stacking the Deck" attack and our solution are relevant only to software controlled by loosely constituted communities. Developers can change their vision and abandon features that are essential for certain users. Moreover, well funded ...