Papers by Calin-Adrian Comes
Analysis of the Quality of Life Through Caeteris non Paribus Methodology
Procedia Economics and Finance, 2015
HSDSI Analysis for EU 28 Countries
Procedia Economics and Finance, 2015
ERP-PCS Connection in the Cosmetics Industry: Opportunities to Increase Energy Efficiency
International Journal of Academic Research in Business and Social Sciences, 2015
Editorial - Emerging Markets Queries in Finance and Business
Procedia Economics and Finance, 2015
Journal of Studies in Education, 2015
The method described in this article is the result of authors' own experience in implementing ERP... more The method described in this article is the result of authors' own experience in implementing ERP systems in the process industry for sustainable development business. Founded on this means, authors wish to significantly raise the low success rate of ERP implementations, according to the research literature. The article encompasses an analysis of information systems' methodology for implementation, together with highlights of resource-intensive Journal of Studies in Education 75 areas and possible implementation failures. The novelty of our proposal is an initial module of pre-existent training (just before the system analysis phase in the project life cycle implementation) based on a standard model, the same model that was verified by the supplier, satisfying client requirements contained in the technical specifications manual. In the last part, there are presented the advantages and disadvantages in utilizing this method for the two ERP implicated parts: system provider and beneficiary.
Reducing the bandwidth of a sparse matrix with a genetic algorithm
Optimization, 2013
ABSTRACT The matrix bandwidth minimization problem (MBMP) consists in finding a permutation of th... more ABSTRACT The matrix bandwidth minimization problem (MBMP) consists in finding a permutation of the lines and columns of a given sparse matrix in order to keep the non-zero elements in a band that is as close as possible to the main diagonal. Equivalently in terms of graph theory, MBMP is defined as the problem of finding a labelling of the vertices of a given graph G such that its bandwidth is minimized. In this paper, we propose an improved genetic algorithm (GA)-based heuristic for solving the matrix bandwidth minimization problem, motivated by its robustness and efficiency in a wide area of optimization problems. Extensively computational results are reported for an often used set of benchmark instances. The obtained results on the different instances investigated show improvement of the quality of the solutions and demonstrate the efficiency of our GA compared to the existing methods in the literature.
Procedia Economics and Finance
The credit crunch makes it almost impossible for companies or individuals to borrow from banks be... more The credit crunch makes it almost impossible for companies or individuals to borrow from banks because lenders are scared of bankruptcies or irregularities leading to higher rates and involve a prolonged recession and slow recovery, which occurs due to supply low credit. Credit crunch - 2008 generates many debates from US subprime to the international financial contagion, from financial reglementation: Basel I, Basel II, Basel III to global imbalances. This paper try to create a stochastic optimal control model in idea to find equilibrium points in banking systems
Procedia Economics and Finance
In ecological systems we have univocal biomass transfer from Herbivorous to Carnivores, and from ... more In ecological systems we have univocal biomass transfer from Herbivorous to Carnivores, and from Plants to Herbivorous, respective in financial system we have bi univocal capital transfer from Mother Bank to Subsidiary Bank, and from Subsidiary Bank to Individuals or Companies; in our approach we study the Individuals suppliers/clients. Three level Lotka-Volterra TLV model is a system of differential equations which analyzes the banking. Three Lotka-Volterra with regulators/decomposers - TLVRS is a system of stochastic differential equations that analyze the equilibrium of banking sector - solution of Fokker-Planck-Kolmogorov stochastic equation in idea to find the dynamical equilibrium point for the Banking System
Data Mining Clustering Techniques in Academia
Procedures and triggers store procedural SQL statements in a database for use by all applications... more Procedures and triggers store procedural SQL statements in a database for use by all applications. They can include control statements that allow repetition (LOOP statement) and conditional execution (IF statement and CASE statement) of SQL statements. Procedures and triggers [1] standardize actions performed by more than one application program. By coding the action once and storing it in the database for future use, applications need only call the procedure or fire the trigger to achieve the desired result repeatedly.
Abstract: Articolul îşi propune să facă o analiză a integrării fluxurilor informaţionale, să stab... more Abstract: Articolul îşi propune să facă o analiză a integrării fluxurilor informaţionale, să stabilească parametrii constructivi şi funcţionali care intervin în procesul digitalizării şi să identifice corelaţiile dintre aceştia, în vederea îmbunăţirii operativităţii între instituţiile locale. Scopul cercetării este acela de a evidenţia stadiul integrării şi nivelul de compatibilizare a structurilor de date între diferite componente ale administraţiei publice locale, respectiv agregarea acestora la nivel regional.
Abstract Exams failure among university students has long fed a large number of debates, many edu... more Abstract Exams failure among university students has long fed a large number of debates, many education experts seeking to comprehend and explicate it, and many statisticians have tried to predict it. Understanding, predicting and preventing the academic failure are complex and continuous processes anchored in past and present information collected from scholastic situations and studentspsila surveys, but also on scientific research based on data mining technologies.
upm.ro
Articolul îşi propune să facă o analiză a integrării fluxurilor informaţionale, să stabilească pa... more Articolul îşi propune să facă o analiză a integrării fluxurilor informaţionale, să stabilească parametrii constructivi şi funcţionali care intervin în procesul digitalizării şi să identifice corelaţiile dintre aceştia, în vederea îmbunăţirii operativităţii între instituţiile locale. Scopul cercetării este acela de a evidenţia stadiul integrării şi nivelul de compatibilizare a structurilor de date între diferite componente ale administraţiei publice locale, respectiv agregarea acestora la nivel regional.
International Conference on Applied Informatics and Communications
Language) is proposed to be independent by RDBMS team players in idea to support their own SQL di... more Language) is proposed to be independent by RDBMS team players in idea to support their own SQL dialects on Platform Specific Language, versus the conceptual level Platform Independent Language. The metalanguage proposes a new operation called Stored Procedures and the language behind him in idea to be platform independent in relation with SQL dialects and their Procedural Languages. The concept of stored procedures operation is abstract, helps in syntactic and semantic modeling, and is required in physical implementation. A stored procedures operation along with his language captures the syntactic and semantics of an RDBMS schema in his dynamical evolution, not in a statical way like ER diagram. An case study of database design with ER-SPML and description using the metalanguage and the diagrammatic technique is given. in [10] extend the ER Model with EER Meta-model with the following approaches: capturing the real world semantic, transform the EER Meta model in to a normalized EER Meta model and generate normalized relations. Entity-Relationship (ER) models and extended Entity-Relationship (EER) models has limitations and problems:
… PETRU MAIOR SERIES …, Jan 1, 2012
Problema optimizării fluxurilor informationale reprezintă un element principal al dezvoltării sus... more Problema optimizării fluxurilor informationale reprezintă un element principal al dezvoltării sustenabile a organizaţiilor prin simplitatea şi rigurozitatea pe care o presupune. Creşterea exponenţială a volumului de date care se procesează pentru a sintetiza informaţia necesară managementului impune concepte, metode şi tehnici noi legate de optimizarea fluxurilor informatice. Preluare, procesarea, agregarea şi sinteza datelor sunt elemente definitorii în optimizarea fluxurilor informatice. Procesarea performantă folosind modele recursive şi de teoria invăţării asigură controlul real al proceselor economice, ducând la o restructurare şi dezvoltare durabilă a organizaţiilor. Lucrarea prezintă o nouă viziune referitoare la modelele de optimizare a proceselor economice prin prisma conectarii directe optimizării informatizate la derularea în timp real a proceselor. Cuvinte cheie: Societate informaţională, proces, timp real, modelare şi optimizare.
emis.ams.org, Jan 1, 2008
The purpose of the present contribution is the development and analysis of Cost Volume Profit mod... more The purpose of the present contribution is the development and analysis of Cost Volume Profit model for a multiproduct situation with variable production structure. We are looking to provide a conceptual bridge between the management accounting and finance literature on CVP analysis with possible applications of the model. The analysis focuses on key concepts associated with the CVP analysis literature which has developed since the contribution of and . For the most part, the previous literature has not incorporated a multiproduct situation with variable production structure. We are pointing that in a variable production structure the CVP analysis is no more a breakeven point problem, it becomes more an optimization problem.
… UNIVERSITATIS PETRU MAIOR …, Jan 1, 2009
Articolul îşi propune să facă o analiză a integrării fluxurilor informaţionale, să stabilească pa... more Articolul îşi propune să facă o analiză a integrării fluxurilor informaţionale, să stabilească parametrii constructivi şi funcţionali care intervin în procesul digitalizării şi să identifice corelaţiile dintre aceştia, în vederea îmbunăţirii operativităţii între instituţiile locale. Scopul cercetării este acela de a evidenţia stadiul integrării şi nivelul de compatibilizare a structurilor de date între diferite componente ale administraţiei publice locale, respectiv agregarea acestora la nivel regional.
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Papers by Calin-Adrian Comes