Jamel Feki

ORCID: 0000-0002-0253-3607
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About
Contact & Profiles
Research Areas
  • Advanced Database Systems and Queries
  • Semantic Web and Ontologies
  • Data Quality and Management
  • Data Mining Algorithms and Applications
  • Data Management and Algorithms
  • Ocular Diseases and Behçet’s Syndrome
  • Service-Oriented Architecture and Web Services
  • Glaucoma and retinal disorders
  • Retinal and Macular Surgery
  • Intraocular Surgery and Lenses
  • Retinal Diseases and Treatments
  • Retinal and Optic Conditions
  • Systemic Lupus Erythematosus Research
  • Web Data Mining and Analysis
  • Corneal surgery and disorders
  • Big Data and Business Intelligence
  • Business Process Modeling and Analysis
  • Traumatic Ocular and Foreign Body Injuries
  • Model-Driven Software Engineering Techniques
  • Ocular Infections and Treatments
  • Complex Network Analysis Techniques
  • Cloud Computing and Resource Management
  • Drug-Induced Ocular Toxicity
  • Ophthalmology and Eye Disorders
  • Vascular Malformations and Hemangiomas

University of Jeddah
2015-2023

Hopital Universitaire Habib Bourguiba
2010-2021

University of Sfax
2012-2021

Digital Research Centre of Sfax
2010-2018

Sudan University of Science and Technology
2017

Information Technology University
2016

Advanced Systems Laboratory
2009-2014

Tunis University
2010-2011

Hopital Universitaire Hedi Chaker
2005

Purpose: To characterize and analyze ocular involvement associated with visual loss in a cohort of patients rickettsial disease.Methods: Retrospective study 16 eyes 14 patients.Results: Mean initial acuity (VA) was 20/63 (range, 20/800–20/25). White retinal lesions infiltrating inner retina the most common finding occurring (87.5%). It serous detachment (SRD), accurately detectable by optical coherence tomography, 11 (78.6%). Other findings included optic neuropathy 7 (43.75%), cystoid...

10.3109/09273948.2013.848907 article EN Ocular Immunology and Inflammation 2013-10-30

A data warehouse (DW) is a large repository system designed for decision-making purposes. Its design relies on specific model called multidimensional. This multidimensional supports analyses of huge volumes that trace the enterprise's activities over time. Several methods were proposed to build schemas from either relational or entity-relationship model. Almost all proposals treated object-oriented assume presence source UML class-diagram. However, in practice, such diagram does not exist...

10.1142/s0219622013500351 article EN International Journal of Information Technology & Decision Making 2013-11-01

Abstract Data Warehouses and OLAP (On Line Analytical Processing) technologies are dedicated to analyzing structured data issued from organizations’ OLTP Transaction systems. Furthermore, in order enhance their decision support systems, these organizations need explore XML (eXtensible Markup Language) documents as an additional important source of unstructured data. In this context, paper addresses the warehousing document-centric documents. More specifically, we propose a two-method...

10.1080/12460125.2013.780322 article EN Journal of Decision System 2013-04-01

Varicella is a common infectious disease primarily of childhood that usually benign and self-limited. It is, however, increasingly seen in adults who are at higher risk severe infection. Ocular complications varicella relatively uncommon have been rarely described adults. We describe herein five developed ocular involvement association with primary varicella-zoster virus manifestations included acute anterior uveitis four eyes, associated stromal keratitis one them, epithelial ulcerative the...

10.1186/s12348-016-0117-9 article EN cc-by Journal of Ophthalmic Inflammation and Infection 2016-11-28

Summary form only given. The manual design of data warehouse and mart schemes can be a tedious, error-prone, time-consuming task. In addition, it is highly complex engineering task that calls for methodological support. This paper lays the grounds an automatic generation approach multidimensional schemes. It first defines tabular format OLAP requirements. Secondly, presents set algebraic operators used to transform automatically requirements, specified in format, modelled either as star or...

10.1109/aiccsa.2005.1387025 article EN 2005-04-01

The Data Warehouse design involves the definition of structures that enable an efficient access to information. designer builds a multidimensional structure taking into account users requirements. In fact, it is highly complex engineering task calls for methodological support. This paper lays grounds automatic, stepwise approach generation data warehouse and mart schemes. For this, first proposes standard format OLAP requirement acquisition. Secondly, defines algorithm transforms...

10.5220/0002520702260231 article EN cc-by-nc-nd 2005-01-01

Today’s international nature of commerce forced the opening corporal information systems (IS) to accept data required for both transactional and decisional processes. To ensure interoperability so opened IS, XML has been adopted as a de facto standard format exchanged data. In order accommodate this in design decision support systems, we propose paper an automatic method mart schemas from documents. The proposed merit automatically identifying all multidimensional elements, classifying them...

10.3166/jds.19.313-345 article EN Journal of Decision System 2010-01-01

In order to explore the most recent data and react faster changes of business conditions, organizations consider Real-Time Data Warehousing (RTDW) as a powerful technique achieve OLAP (On Line Analytical Processing) analyses intelligence (BI). are complex since they query several relational tables with huge volumes. deal this volumetry, optimization techniques have been proposed in literature materialized views partitioning. Partitioning is an effective method increase efficiency warehouse....

10.1109/icis.2015.7166669 article EN 2015-06-01

With the tremendous growth of social networks, there has been a in amount new data created every minute on these networking sites. Twitter acts as great source rich information for millions users. messages, or tweets, are limited to 140 characters. This limitation length makes difficult their analysis. However, various accessible meta-data associated with message. Taking into account meta-data, they can be very useful analysis and making decisions. Applying OLAP (On-Line Analytical...

10.1109/rcis.2014.6861029 article EN 2014-05-01

To assist the decisional designer in building data mart star schemes relying on a relational source, we propose an approach supported by tool. Our is independent of semantic any source information system; it classifies relations Rentities and R-associations and, based structural semantics which disseminated through primary keys referential constraints. This extracts facts, dimensions hierarchies using set appropriate heuristics. A software tool baptized CAME developed to support our proposed...

10.3166/jds.16.303-333 article EN Journal of Decision System 2007-01-01
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