Papers by Genoveva Vargas Solar
ArXiv, 2021
This chapter provides a summarized, critical and analytical point of view of the data-centric sol... more This chapter provides a summarized, critical and analytical point of view of the data-centric solutions that are currently applied for addressing urban problems in cities. These solutions lead to the use of urban computing techniques to address their daily life issues. Data-centric solutions have become popular due to the emergence of data science. The chapter describes and discusses the type of urban challenges and how data science in urban computing can face them. Current solutions address a spectrum that goes from data harvesting techniques to decision making support. Finally, the chapter also puts in perspective families of strategies developed in the state of the art for addressing urban problems and exhibits guidelines that can lead to a methodological understanding of these strategies.
Book of abstracts, Sep 10, 2017
Les Cahiers de l'ILCEA, Mar 3, 2020
Revue de l'Institut des langues et cultures d'Europe, Amérique, Afrique, Asie et Australie 39 | 2... more Revue de l'Institut des langues et cultures d'Europe, Amérique, Afrique, Asie et Australie 39 | 2020 Les humanités numériques dans une perspective internationale : opportunités, défis, outils et méthodes
This paper presents a methodology to simulate and visualize crowds. Our goal is to represent the ... more This paper presents a methodology to simulate and visualize crowds. Our goal is to represent the most realistic possible scenarios in a city. Due to the high demand of resources a GPU Cluster is used. We use real data from which we identify the behavior of the masses applying statistical and artificial intelligence techniques. In order to take advantge of the processing power of the GPU cluster we use the following programming models during the characters simulation: MPI, OmpSs and CUDA. We developed different visualization schemes: a) In situ, b) Streaming, c) Web. The web scheme is the most flexible, allowing to interact in real time with the simulation through a web browser. For this scheme we use WebGL and Cesium.
New Trends in Databases and Information Systems, 2017
The novel and multidisciplinary data centric and scientific movement promises new and not yet ima... more The novel and multidisciplinary data centric and scientific movement promises new and not yet imagined applications that rely on massive amounts of evolving data that need to be cleaned, integrated, and analysed for modelling, prediction, and critical decision making purposes. This paper explores the key challenges and opportunities for data management in this new scientific context, and discusses how data management can best contribute to data centric sciences applications through clever data science strategies.
Les nouvelles architectures matérielles mettent à disposition des services à des différentes empr... more Les nouvelles architectures matérielles mettent à disposition des services à des différentes empreintes: services réduits pour les systèmes embarqués et illimité pour le cloud, par exemple ; certaines ajoutent aussi des contraintes pour accéder aux données, qui portent sur le contrôle d'accès et la réservation/affectation de ressources par priorités (e.g., dans la grille) et sur le coût économique (e.g., dans le cloud). Les applications qui utilisent ces architectures établissent aussi des préférences de qualité de service (service level agreement SLA) qui portent sur le temps de traitement, la pertinence et la provenance de données ; le coût économique des données et le coût énergétique qui implique leur traitement. Ainsi, la gestion de données doit être revisitée pour concevoir des stratégies qui respectent à la fois les caractéristiques des architectures et les préférences des utilisateurs (service level agreements SLA). Notre recherche contribue à la construction de systèmes de gestion de données à base de services. L'objectif est de concevoir des services de gestion de données guidée par des contrats SLA. Il s'agit d'offrir des méthodologies et des outils pour l'intégration, le déploiement, et l'exécution d'un assemblage de services pour programmer des fonctions de gestion de données. La composition de services de données particulièrement lorsqu'il s'agit des services bases de données, doit respecter des critères de qualité de service (e.g., sécurité, fiabilité, tolérance aux fautes, évolution et adaptabilité dynamique) et des propriétés de comportement (par ex., exécution transactionnelle) adaptées aux besoins des applications.
ADEES , an open event-based infrastructurefor distributed information systemsGenoveva
This paper describes ADEES, an open and evolutionary event-based architecture to develop complex ... more This paper describes ADEES, an open and evolutionary event-based architecture to develop complex distributed information systems. It can be used to specify and generate event managers well-adapted to support communication, cooperation, data exchange, etc. among components of such systems. The contribution of this work is related to two main aspects. The rst concerns the approach we adopted. Diierent from most existing event supports that provide limited event description models and xed management models, ADEES can be extended and customized on a per-application basis. It is not another \one-size-ts-all" event manager! It is used to generate event managers adopted by components to produce and consume events according to the event description and event management models they need (e.g. event as anonymous messages, speciic composite event operators, synchronous/asynchronous detection, push/pull protocol). The second aspect concerns the ability of a event service and event managers...
2017 IEEE/ACM 39th International Conference on Software Engineering Companion (ICSE-C), May 1, 2017
2018 13th International Workshop on Semantic and Social Media Adaptation and Personalization (SMAP), Sep 1, 2018
This paper proposes an approach for helping data scientists express queries that can help them un... more This paper proposes an approach for helping data scientists express queries that can help them understand the content of raw data collections. The proposal is based on query rewriting techniques that given an initial query they can provide sets of queries that can help data scientists to better exploit data collections. We apply our approach in the context of the project Exploring the History of Climate Change in Latin America through Newspaper Articles funded by the Panamerican Institute of Geography and History (PAIGH) where data scientists explore newspapers to track articles reporting climatologic events.
Security and Communication Networks, 2019
Users and Internet service providers (ISPs) are constantly affected by denial-of-service (DoS) at... more Users and Internet service providers (ISPs) are constantly affected by denial-of-service (DoS) attacks. This cyber threat continues to grow even with the development of new protection technologies. Developing mechanisms to detect this threat is a current challenge in network security. This article presents a machine learning- (ML-) based DoS detection system. The proposed approach makes inferences based on signatures previously extracted from samples of network traffic. The experiments were performed using four modern benchmark datasets. The results show an online detection rate (DR) of attacks above 96%, with high precision (PREC) and low false alarm rate (FAR) using a sampling rate (SR) of 20% of network traffic.
ECLOUDSS: Building E-government Clouds using Distributed Semantic Services
The objective of E-CLOUDSS is to propose an infrastructure for mashing up reliable semantic servi... more The objective of E-CLOUDSS is to propose an infrastructure for mashing up reliable semantic services for building e- government clouds. Mashups represent a new wave for building Web applications. A mashup is an application that presents content available from different sources by reusing the contents provided by third parties (e.g Web pages, Web services). A service is an autonomous software that offers some functionality through a network. Services coordination can be used for mashing up services and thereby specifying application logic by (i) capturing the interactions and dependencies among services; and (ii) by specifying reliability properties that the system must ensure in order to ensure QoS requirements such as connection, security, availability, persistency, etc. Therefore the project addresses the specification of reliable semantic web services. E-CLOUDSS addresses the management (definition and enforcing at execution time) of non functional properties associated to services? coordination for building reliable mash-ups. Effective ways to perform virtual executions is one of the main subjects of study of E-CLOUDSS. Depending on the knowledge and optionality degree of the concrete WS, different compilation scenarios arise which derive in turn into different execution mechanisms of the orchestation. E-CLOUDSS proposes to study the combination of the transformations using program fusion and generic programming. E-CLOUDSS contributes to the mashingup of services for building e-government clouds and contributes to the development of solutions for promoting the economic and technologic development of the Latin American governments administrations. Technology transfer is one of the goals of the project. E-CLOUDSS will develop general fundamental research topics that are in the centre of advanced research in systems construction and architectures. E- CLOUDSS will contribute to show the strong points of LA fundamental research on Computer Science and Information Technologies. Concerning social impact, e-government and e-economy must be developed and promoted in LA. Global markets and production chains are a reality in any region of the world and particularly in LA. Thus, having tools for implementing systems for supporting information and data exchange, along with the automatization of processes, will certainly contribute to the economic development of the region. Separating the semantic and the functional aspects for mashing up services, makes the approach easy to reproduce for any country, by modeling the particularities of the context. The consortium of E-CLOUDSS will also help to have a generic solution adaptable for the three participating countries.
Observing the environment for building todays' and future information systems
Building data management services in clouds
Cloud computing is facilitating unlimited access to the computing and storage resources needed to... more Cloud computing is facilitating unlimited access to the computing and storage resources needed to build applications. The underlying infrastructure manages such resources transparently, without demanding the application manage or reserve more resources than those it really requires. Therefore, database management systems have exploded into cloud services that must be tuned and composed for efficiently and cost-effectively managing, querying, and exploiting huge data sets. In this talk, we will address a querying approach that consists of composing services that provide data and data management functions (aggregation, storage, refreshment). We will discuss how query processing is tuned with respect to the cost of accessing data and services, the cost of using cloud resources for executing the query, and the mashing up of results according to quality dimensions of completeness, data provenance, and data freshness. We will examine how this approach has provided solutions for e-government applications that integrate services from different countries.
2006 10th International Database Engineering and Applications Symposium (IDEAS'06), 2006
Our research project proposes an approach for providing transactional behavior to services coordi... more Our research project proposes an approach for providing transactional behavior to services coordination. In service composition functional aspects have been successfully addressed. However transactional properties have been poorly addressed using ad-hoc solutions at the back end of the systems. This situation makes current applications not reliable and not adaptable to existing distributed environments (i.e. Internet). The objective of our research is proposing mechanisms for adding transactional behavior to services coordination.
Marcela D. Rodríguez Gabriel López Morteo ENC’08 General Chairs
The ENC-2008 conference was held at the Universidad Autónoma de Baja California, Mexicali, Mexico... more The ENC-2008 conference was held at the Universidad Autónoma de Baja California, Mexicali, Mexico. Mexicali is the capital of the State of Baja California, Mexico. Founded on March 14, 1903, Mexicali is situated on the US-Mexico border adjacent to Calexico, California. ...
Defining and Coordinating Open-Services
ABSTRACT Recently, workflow technology has been widely accepted as a mean for integrating service... more ABSTRACT Recently, workflow technology has been widely accepted as a mean for integrating services to build applications (services). Provided a set of services a workflow is used to coordinate and to synchronize their executions. This paper proposes an approach based on workflow technology and an associated mechanism for defining and coordinating services. Given a service provider that exports a set of methods a workflow can be defined for coordinating calls to such methods, in order to program a service. A service definition is decoupled from the capabilities of the service provider, thus a service may be adapted according to different application requirements. Services coordination is carried out by an orchestrator workflow that provides a fine control on their executions. Definition and coordination are characterized by a set of properties that ensure the correct behaviour of the resulting application (service).
Pyros - an environment for building and orchestrating open services
2005 IEEE International Conference on Services Computing (SCC'05) Vol-1, 2005
ABSTRACT Service oriented computing has gained a considerable momentum as a new paradigm for buil... more ABSTRACT Service oriented computing has gained a considerable momentum as a new paradigm for building enterprise information systems. Notable efforts have been made recently from both researchers and industrials to support the construction of service-based applications; nevertheless several issues still need to be tackled including service definition and adaptation, and services orchestration. This work proposes Pyros, an environment for building and orchestrating open services. An open service is represented by a workflow that coordinates calls to service provider methods. Thereby component activities and the way they are synchronized are rendered visible. In order to finely orchestrate services, they are associated with entry points. An entry point acts as a gateway for inserting and getting information about the progress of service execution. The paper details the approach adopted by Pyros for building and orchestrating services, and presents associated architectural choices. Furthermore, it reports an experimentation that we conducted for implementing an eTrader application using Pyros.
Humanitarian Logistics based on Multiagent Systems for the prevention of a plethora of disasters related with crowds
This book is a novel, innovative and adequate source of information that complies interdisciplina... more This book is a novel, innovative and adequate source of information that complies interdisciplinary perspectives about diverse issues related with Humanitarian Logistics on different ways about Intelligent Optimisation, Industrial Applications on real world, Social applications and Technology applications each one with a different perspective about the correct solution of this kind of methodologies. This book is a collective effort to introduce new ideas and paradigms from a variety of perspectives using innovative techniques related with Multi-agent's system and methodologies associated with Artificial Intelligence.
Computación y Sistemas, 2017
Human stampedes caused by panic and overcrowding occur frequently as a result of abnormal events ... more Human stampedes caused by panic and overcrowding occur frequently as a result of abnormal events (e.g., a fire or explosion) produced in collective events (e.g., religious pilgrimages, music concerts and sportive events). These events provoke panic and when people are agglomerated they try to escape pushing each other without realizing that others are being crushed. Since crowds can consist of individuals with diverse physical and social characteristics determined by cultural diversity, it is difficult to configure the space in advance and find solutions in real-time to save people and reduce catastrophe. This paper proposes an approach to explore the impact of anthropometry and cultural diversity in the behaviour of crowds in panic situations. Our approach includes techniques for reproducing and simulating the behaviour of the crowd to generate models that can help decision making to control such situations. The main contribution of our work is to use computational science, data processing and visualization techniques to perform our simulation and study, for eventually supporting critical decision making.
Ingénierie des systèmes d'information, 2013
Ce document présente le résultat d'une réflexion des chercheurs en bases de données sur l'état de... more Ce document présente le résultat d'une réflexion des chercheurs en bases de données sur l'état des recherches dans ce domaine en France. Sans prétendre à l'exhaustivité, le comité Bases de Données Avancées souhaitait identifier les enjeux scientifiques et sociétaux de la gestion des données pour la prochaine décennie, et d'en préciser les contours à la lumière des évolutions scientifiques et des nouveaux usages qu'elles génèrent. Ont plus particulièrement participé à la rédaction de ce document : B.
Uploads
Papers by Genoveva Vargas Solar