Full Professor at UENF (http://www.uenf.br)
IEEE Computer Society Member
ACM Member
Brazilian Computer Society Member
RMCP Member Address: Campos, Rio de Janeiro, Brazil
Este artigo apresenta uma metodologia de elicitação e análise de requisitos baseada na construção... more Este artigo apresenta uma metodologia de elicitação e análise de requisitos baseada na construção de uma biblioteca que inclui propriedades fundamentais de segurança computacional (integridade, confidencialidade e disponibilidade). Esta construção utiliza os conceitos de domínio de requisitos e orientação a aspectos e foi auxiliada por uma ferramenta de gerenciamento de requisitos (FGR).
Integrating geographical and multidimensional processing has been proposed in several researches ... more Integrating geographical and multidimensional processing has been proposed in several researches in the database literature. One of the most important issues of this process is data querying. However, most of the current approaches do not take into account the use of a query language to make the simultaneous specification of multidimensional and spatial operators available. In this paper, we present GeoMDQL, which is a geographical-multidimensional query language, specifically been designed for SOLAP environments. GeoMDQL is based on well-known standards such as the MDX language and OGC Simple Features Specification for SQL.We present here the GeoMDQL grammar and a discussion regarding the taxonomy and syntax of GeoMDQL query types. Additionally, some aspects related to the GeoMDQL architecture implementation are shown together with a case study description to illustrate the proposed query language syntax
... Author, Castro Vera, Ausberto Silverio. ... a hoje um dos conceitos mais importantes, aceitos... more ... Author, Castro Vera, Ausberto Silverio. ... a hoje um dos conceitos mais importantes, aceitos e compreendidos da Ciência da Computação, que permite descrever as principais entidades de um sistema baseado em computador através das propriedades que tais entidades devem ...
Speech is the primary form of communication between human beings. By talking to others we allow t... more Speech is the primary form of communication between human beings. By talking to others we allow them to know our thoughts, feelings, needs and also come to know their feelings, thoughts and needs. This form of human communication is still a dream if we compare it to man-machine communication. The motivating factor for research in this area was the possibility of developing a speech recognition system that did not require any type of learning for their use, allowing that anyone could manipulate the system through speech, since the speech is the more natural medium for human communication. This work aims to build a game for discovery of colors using speech for recognition, this system will serve as a basis for future work on speech recognition as the more traditional techniqueswere applied in these systems. The recognition system developed was applied to the recognition of isolated words withspeaker dependency and runs on mobile devices with Android operating system
The use of gestures in human-computer interaction have been widely accepted as a powerful tool in... more The use of gestures in human-computer interaction have been widely accepted as a powerful tool in modeling, analysis and gesture recognition research. In recent years, several new ways of interaction with computers were created, including those involving computer vision, pattern recognition and artificial intelligence. The present work develops a model based on motion controlled by primitive movement gestures, used by a human actor in front of a camera to move a virtual character, also known as avatar, inside a virtual environment
Consider developing safety critical systems is a very complex problem yet. Consider safety aspect... more Consider developing safety critical systems is a very complex problem yet. Consider safety aspects in requirements engineering can be an interesting solution. The aim of this paper is to present a methodology of requirements elicitation to development of security computer systems based in aspect-oriented technique. Is show the concepts of requirements engineering, security, requirements domain and aspects and also is shown some examples on how to use this methodology
Este artigo apresenta uma metodologia de elicitação e análise de requisitos baseada na construção... more Este artigo apresenta uma metodologia de elicitação e análise de requisitos baseada na construção de uma biblioteca que inclui propriedades fundamentais de segurança computacional (integridade, confidencialidade e disponibilidade). Esta construção utiliza os conceitos de domínio de requisitos e orientação a aspectos e foi auxiliada por uma ferramenta de gerenciamento de requisitos (FGR).
Integrating geographical and multidimensional processing has been proposed in several researches ... more Integrating geographical and multidimensional processing has been proposed in several researches in the database literature. One of the most important issues of this process is data querying. However, most of the current approaches do not take into account the use of a query language to make the simultaneous specification of multidimensional and spatial operators available. In this paper, we present GeoMDQL, which is a geographical-multidimensional query language, specifically been designed for SOLAP environments. GeoMDQL is based on well-known standards such as the MDX language and OGC Simple Features Specification for SQL.We present here the GeoMDQL grammar and a discussion regarding the taxonomy and syntax of GeoMDQL query types. Additionally, some aspects related to the GeoMDQL architecture implementation
are shown together with a case study description to illustrate the proposed query language syntax
Este artigo apresenta uma metodologia de elicitação e análise de requisitos baseada na construção... more Este artigo apresenta uma metodologia de elicitação e análise de requisitos baseada na construção de uma biblioteca que inclui propriedades fundamentais de segurança computacional (integridade, confidencialidade e disponibilidade). Esta construção utiliza os conceitos de domínio de requisitos e orientação a aspectos e foi auxiliada por uma ferramenta de gerenciamento de requisitos (FGR).
Integrating geographical and multidimensional processing has been proposed in several researches ... more Integrating geographical and multidimensional processing has been proposed in several researches in the database literature. One of the most important issues of this process is data querying. However, most of the current approaches do not take into account the use of a query language to make the simultaneous specification of multidimensional and spatial operators available. In this paper, we present GeoMDQL, which is a geographical-multidimensional query language, specifically been designed for SOLAP environments. GeoMDQL is based on well-known standards such as the MDX language and OGC Simple Features Specification for SQL.We present here the GeoMDQL grammar and a discussion regarding the taxonomy and syntax of GeoMDQL query types. Additionally, some aspects related to the GeoMDQL architecture implementation are shown together with a case study description to illustrate the proposed query language syntax
... Author, Castro Vera, Ausberto Silverio. ... a hoje um dos conceitos mais importantes, aceitos... more ... Author, Castro Vera, Ausberto Silverio. ... a hoje um dos conceitos mais importantes, aceitos e compreendidos da Ciência da Computação, que permite descrever as principais entidades de um sistema baseado em computador através das propriedades que tais entidades devem ...
Speech is the primary form of communication between human beings. By talking to others we allow t... more Speech is the primary form of communication between human beings. By talking to others we allow them to know our thoughts, feelings, needs and also come to know their feelings, thoughts and needs. This form of human communication is still a dream if we compare it to man-machine communication. The motivating factor for research in this area was the possibility of developing a speech recognition system that did not require any type of learning for their use, allowing that anyone could manipulate the system through speech, since the speech is the more natural medium for human communication. This work aims to build a game for discovery of colors using speech for recognition, this system will serve as a basis for future work on speech recognition as the more traditional techniqueswere applied in these systems. The recognition system developed was applied to the recognition of isolated words withspeaker dependency and runs on mobile devices with Android operating system
The use of gestures in human-computer interaction have been widely accepted as a powerful tool in... more The use of gestures in human-computer interaction have been widely accepted as a powerful tool in modeling, analysis and gesture recognition research. In recent years, several new ways of interaction with computers were created, including those involving computer vision, pattern recognition and artificial intelligence. The present work develops a model based on motion controlled by primitive movement gestures, used by a human actor in front of a camera to move a virtual character, also known as avatar, inside a virtual environment
Consider developing safety critical systems is a very complex problem yet. Consider safety aspect... more Consider developing safety critical systems is a very complex problem yet. Consider safety aspects in requirements engineering can be an interesting solution. The aim of this paper is to present a methodology of requirements elicitation to development of security computer systems based in aspect-oriented technique. Is show the concepts of requirements engineering, security, requirements domain and aspects and also is shown some examples on how to use this methodology
Este artigo apresenta uma metodologia de elicitação e análise de requisitos baseada na construção... more Este artigo apresenta uma metodologia de elicitação e análise de requisitos baseada na construção de uma biblioteca que inclui propriedades fundamentais de segurança computacional (integridade, confidencialidade e disponibilidade). Esta construção utiliza os conceitos de domínio de requisitos e orientação a aspectos e foi auxiliada por uma ferramenta de gerenciamento de requisitos (FGR).
Integrating geographical and multidimensional processing has been proposed in several researches ... more Integrating geographical and multidimensional processing has been proposed in several researches in the database literature. One of the most important issues of this process is data querying. However, most of the current approaches do not take into account the use of a query language to make the simultaneous specification of multidimensional and spatial operators available. In this paper, we present GeoMDQL, which is a geographical-multidimensional query language, specifically been designed for SOLAP environments. GeoMDQL is based on well-known standards such as the MDX language and OGC Simple Features Specification for SQL.We present here the GeoMDQL grammar and a discussion regarding the taxonomy and syntax of GeoMDQL query types. Additionally, some aspects related to the GeoMDQL architecture implementation
are shown together with a case study description to illustrate the proposed query language syntax
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orientação a aspectos e foi auxiliada por uma ferramenta de gerenciamento de requisitos (FGR).
are shown together with a case study description to illustrate the proposed query language syntax
orientação a aspectos e foi auxiliada por uma ferramenta de gerenciamento de requisitos (FGR).
are shown together with a case study description to illustrate the proposed query language syntax