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Dive into the research topics where Costin Bădică is active.

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Featured researches published by Costin Bădică.


rules and rule markup languages for the semantic web | 2011

Rule-based distributed and agent systems

Costin Bădică; Lars Braubach; Adrian Paschke

The paper contains an overview of the roles played by rules and rule-based systems in distributed and multi-agent systems. These roles include an overview of traditional and newly emerging application areas as well as internal agent architectures and frameworks implementing these architectures.


acm symposium on applied computing | 2006

Implementing rule-based mechanisms for agent-based price negotiations

Costin Bădică; Adriana Bădită; Maria Ganzha

This note describes a sample implementation of automated negotiations in an e-commerce modeling multi-agent system. A specific set of rules is used for enforcing negotiation mechanisms. Discussion of system design and implementation using JADE and JESS is provided. Finally, an experiment involving multiple English auctions performed in parallel is discussed.


TEAA'06 Proceedings of the 2nd international conference on Trends in enterprise application architecture | 2006

Using rules and R2ML for modeling negotiation mechanisms in e-commerce agent systems

Costin Bădică; Adrian Giurca; Gerd Wagner

With the spread of e-commerce on a global scale, the development of truly open semantic descriptions of negotiation mechanisms for agent systems generated a lot of interest in the research community. This paper proposes the use of the REWERSE rule-markup language R2ML for semantic modeling of negotiation mechanisms to enable agents to engage in more flexible and open negotiations. Rules are developed on top of an ontology of negotiation concepts and define a lingua franca for all software agents participating in negotiation.


rules and rule markup languages for the semantic web | 2005

Rule-Based framework for automated negotiation: initial implementation

Costin Bădică; Adriana Bădiţă; Maria Ganzha; Alin Iordache; Marcin Paprzycki

The note reports on the current status of an implementation of a rule-based negotiation mechanism in a model e-commerce multi-agent system. Here, we briefly describe the conceptual architecture of the system and its initial implementation utilizing JADE and JESS. A particular negotiation scenario involving English auctions performed in parallel is also discussed.


parallel computing technologies | 2005

Experimenting with a multi-agent e-commerce environment

Costin Bădică; Maria Ganzha; Marcin Paprzycki; Amalia Pîrvănescu

Agent technology is often claimed to be the most natural approach for automating e-commerce business processes. Despite these claims, up till now, the most successful e-commerce systems are still based on humans to make the most important decisions in various stages of an e-commerce transaction. Consequently, it is difficult to find successful actually implemented and working large-scale agent-based e-commerce applications to confirm agents superiority. Here, we discuss an abstract e-commerce environment that allows agents of different types to interact with each other and operate with an overarching goal of supporting an e-commerce transaction. A prototype system that implements this vision using JADE agent platform is also described. Finally, we report on experiments with the implemented system skeleton.


soft computing | 2007

L-wrappers: concepts, properties and construction: A declarative approach to data extraction from web sources

Costin Bădică; Amelia Bădică; Elvira Popescu; Ajith Abraham

In this paper, we propose a novel class of wrappers (logic wrappers) inspired by the logic prog- ramming paradigm. The developed Logic wrappers (L-wrapper) have declarative semantics, and therefore: (i) their specification is decoupled from their implementation and (ii) they can be generated using inductive logic programming. We also define a convenient way for mapping L-wrappers to XSLT for efficient processing using available XSLT processing engines.


atlantic web intelligence conference | 2007

Agent-Based Adaptive Learning Provisioning in a Virtual Organization

Maria Ganzha; Marcin Paprzycki; Elvira Popescu; Costin Bădică; Maciej Gawinecki

In this note we consider design of a learning provisioning subsystem for an agent-based virtual organization. Flexible delivery of learning content is based on matching of ontologically demarcated user profiles, domain specific knowledge and learning modules.


international conference on artificial intelligence and soft computing | 2006

Rule-Based automated price negotiation: overview and experiment

Costin Bădică; Maria Ganzha; Marcin Paprzycki

The idea of automating e-commerce transactions attracted a lot of interest during the last years. Multi-agent systems are claimed to be one of promising software technologies for achieving this goal. In this paper we summarize state-of-the-art in rule-based approaches to automated negotiations and present initial experimental results with our own implementation of a rule-based price negotiation mechanism in a model e-commerce multi-agent system. The experimental scenario considers multiple buyer agents involved in multiple English auctions that are performed in parallel.


web intelligence, mining and semantics | 2012

Desiderata for research in web intelligence, mining and semantics

Rajendra Akerkar; Costin Bădică; Dumitru Dan Burdescu

The Web has an immense impact on our daily activities at work, home, and leisure. As a result, more effective and efficient methods and technologies are needed to make the most of the Webs practically unlimited potential. The new Web-related research directions include intelligent methods usually associated with the areas of Computational Intelligence, Semantic Web, Soft Computing, and Data Mining. In this article, the necessity for research on Web intelligence, mining and semantics (WIMS) is discussed together with ways in which a wide range of research is benefiting this area for the long-term. Also the WIMS conferences goal and structure are presented.


knowledge science, engineering and management | 2014

Relating the Opinion Holder and the Review Accuracy in Sentiment Analysis of Tourist Reviews

Mihaela Colhon; Costin Bădică; Alexandra Şendre

In this paper we propose a sentiment classification method for the categorization of tourist reviews according to the sentiment expressed. We also give the results of the application of our sentiment analysis method on a real data set extracted from the AmFostAcolo tourist review Web site. In our analysis we were focused on investigating the relation between the opinion holder and the accuracy of the review sentiment with the review score. Based on our initial experimental results we concluded that specific characteristics of the opinion holder, like for example his or her reputation, might relate to the accuracy of the opinions expressed in his or her reviews.

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Maria Ganzha

Warsaw University of Technology

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Marcin Paprzycki

Polish Academy of Sciences

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