Jose Vicente Berna-Martinez

Algorithm for the detection of outliers based on the theory of rough sets

Outliers are objects that show abnormal behavior with respect to their context or that have unexpected values in some of their parameters. In decision-making processes, information quality is of the utmost importance. In specific applications, an outlying data element may represent an important deviation in a production process or a damaged sensor. Therefore, the ability to detect these elements could make the difference between making a correct and an incorrect decision. This task is complicated by the large sizes of typical databases. Due to their importance in search processes in large volumes of data, researchers pay special attention to the development of efficient outlier detection techniques. This article presents a computationally efficient algorithm for the detection of outliers in large volumes of information. This proposal is based on an extension of the mathematical framework upon which the basic theory of detection of outliers, founded on Rough Set Theory, has been constructed. From this starting point, current problems are analyzed; a detection method is proposed, along with a computational algorithm that allows the performance of outlier detection tasks with an almost-linear complexity. To illustrate its viability, the results of the application of the outlier-detection algorithm to the concrete example of a large database are presented. We propose a formal expansion to the theory of rough sets.We propose an efficient algorithm for the detection of outliers.We have implemented the algorithm and verified the theoretical results.

Distributed Robotic Architecture based on Smart Services

This paper presents an approach for designing robots and robotic systems based on the application of models, architectures, techniques and tools that have contributed valid solutions in other areas, such as e-business. Before applying these solutions, the physical elements that make up a robotic system are subjected to a normalization process in order to characterize their functional contributions. In this way, the conceptual model and the technical architecture of the service-oriented architecture robotic system is established. The paper also includes a simple implementation enabling the proposal to be validated, together with the main conclusions reached and future lines of study.

Normalization of Industrial Machinery with Embedded Devices and SOA

In the present paper we propose a method that permits visualization of manufacturing devices from a functional perspective. The aim of this method is to raise the abstraction level of manufacturing devices from the lower levels of production to the enterprise level of the business model. The target of this new approach is to integrate in a transparent way the resources, processes and, in general, the business logic of manufacturing levels using existing business models and achieving business continuity and process automation. The proposed method comprises two phases: the first phase that we have named industrial machinery normalization process; and the second phase that we have named manufacturing processes reorganization process. This paper focuses mainly on the former, i.e. specification of the hardware normalization and industrial machinery functionalities process.

New models of agile manufacturing assisted by semantic

This paper proposesa process management system that enables new dynamic manufacturing models to be implemented. This system facilitates the automation of process modelling, thus reducing the workload for process engineers. To this end, it focuses on the incorporation of knowledge in the definition of the processes and services involved. The document presents a general scenario in which industrial machinery is offered as services (IMaaS), integrated under a Service-oriented Architecture (SOA); this is followed by a definition of an ontology that enables the incorpoation of knowledge into the proposed scenario; finally the implementation of a prototype, along with a test scenario, is presented, enabling the viability of the proposal to be demonstrated.

Semantic-driven manufacturing process management automation

The maturity of IT, in conjunction with certain modern theories about Business Processes Management (BPM), has propitiated an appropriate scenario for meeting the needs of new business models, which are increasingly centred on mass customization. Integration solutions provided within the framework of manufacturing organisations have opened up a wide range of possibilities in process management, which, paradoxically, is causing the traditional bottleneck between the enterprise level and production levels to now be transferred to the process management and modelling levels. This paper proposes the incorporation of knowledge into the definition of the processes and services involved by means of an ontology, thus maximising the automation of process modelling and facilitating the work of process engineers.

Business Continuity Model. Regeneration System for Manufacturing Components

At present, with the expansion of information technologies at the industry, it is vital to implant proactive, self-managed systems that ensure continuous operation and, therefore, business continuity. This article proposes a regeneration system for industrial production elements that transfers the concept of high availability to the manufacturing levels of the organisation, acting automatically under open protocols when there is degradation or failure of any of the components, ensuring that normal operation is resumed within a delimited time. In addition to this proposal, we present a development scenario that allows the validity of the approach to be confirmed, while verifying the drastic reduction in recovery times, the support for the significant heterogeneity existing in these scenarios and their high level of automation, while practically dispensing with the intervention of system administrators

System-on-chip design of the cortical-diencephalic centre of the lower urinary tract

This article presents the design of a field programmable gate array (FPGA)-based prototype of a system on chip (SoC) capable of behaving as one of the nerve centres comprising the neuroregulatory system in humans: the cortical-diencephalic nerve centre. The neuroregulatory system is a complex nerve system consisting of a heterogeneous group of nerve centres. These centres are distributed throughout the length of the spinal cord, are autonomous, communicate via interneurons, and govern and regulate the behaviour of multiple organs and systems in the human body. As a result of years of study of the functioning and composition of the neuroregulatory system of the lower urinary tract (LUT), the centres that regulate this system have been isolated. The objective of this study is to understand the individual functioning of each centre in order to create a general model of the neuroregulatory system that is capable of operating at the level of the actual nerve centre. This model represents an advancement of the current black box models that do not allow for isolated or independent treatment of system dysfunction. In this study, we re-visit our research into the viability of the hardware design of one of these centres-the cortical-diencephalic centre. We describe this hardware because functioning of the centre is completely configurable and programmable, which validates the design for other centres that comprise the neuroregulatory system. In this document, we succinctly present the formal model of the centre, propose a hardware design and an FPGA-based prototype, construct a testing and simulation environment to evaluate it and, lastly, analyse and contrast the results using data obtained from real patients, verifying that the functional behaviour fits that observed in humans.

A formal framework for modelling complex network management systems

Society today is completely dependent on computer networks, the Internet and distributed systems, which place at our disposal the necessary services to perform our daily tasks. Subconsciously, we rely increasingly on network management systems. These systems allow us to, in general, maintain, manage, configure, scale, adapt, modify, edit, protect, and enhance the main distributed systems. Their role is secondary and is unknown and transparent to the users. They provide the necessary support to maintain the distributed systems whose services we use every day. If we do not consider network management systems during the development stage of distributed systems, then there could be serious consequences or even total failures in the development of the distributed system. It is necessary, therefore, to consider the management of the systems within the design of the distributed systems and to systematise their design to minimise the impact of network management in distributed systems projects. In this paper, we present a framework that allows the design of network management systems systematically. To accomplish this goal, formal modelling tools are used for modelling different views sequentially proposed of the same problem. These views cover all the aspects that are involved in the system; based on process definitions for identifying responsible and defining the involved agents to propose the deployment in a distributed architecture that is both feasible and appropriate.

Data normalization and integration in Robotic Systems using Web Services Technologies

The robotics is one of the most active areas. We also need to join a large number of disciplines to create robots. With these premises, one problem is the management of information from multiple heterogeneous sources. Each component, hardware or software, produces data with different nature: temporal frequencies, processing needs, size, type, etc. Nowadays, technologies and software engineering paradigms such as service- oriented architectures are applied to solve this problem in other areas. This paper proposes the use of these technologies to implement a robotic control system based on services. This type of system will allow integration and collaborative work of different elements that make up a robotic system Keywords-SOA; robots architecture; web serices; management and integration.