We present a logic programming framework implemented over Prolog which is able tomodel an agent&#... more We present a logic programming framework implemented over Prolog which is able tomodel an agent's mental state. An agent is modeled by a set of extended logic programmingrules representing the agent's behavior, attitudes (beliefs, intentions, and goals), worldknowledge, and temporal and reasoning procedures. At each stage the agents's mental stateis defined by the well founded model of the extended logic
In this paper a two-headed architecture designed for handling intelligent multimedia manmachinein... more In this paper a two-headed architecture designed for handling intelligent multimedia manmachineinteraction is described. In this work we are mainly interested in interactions thatmay consist only of natural language sentences and graphical actions and events (multimodalinteractions). The architecture is extended from Lopes [Lop91] and is composed of two decisionecenters (heads): an interactional and a reectional one. The interactional decision center isresponsible for the interaction with the user and consists of a handler ...
Dynamic logic programming allows the representation and the inference of evolv- ing knowledge. Le... more Dynamic logic programming allows the representation and the inference of evolv- ing knowledge. Legal knowledge reasoning needs the capability to model laws that change over time and to model laws produced by distinct entities with different priorities at differ- ent time points. In this paper we propose the use of dynamic logic programming to model these legal dynamic situations. Some
This paper reports an exploratory study aimed at investigating the impact of post-editing and tra... more This paper reports an exploratory study aimed at investigating the impact of post-editing and translation task execution in the Chinese-Portuguese language pair as performed by professional translators. Eye-tracking and keylogging data were used to assess temporal, technical and cognitive measures related to the understanding of two Portuguese source texts and the production of two Chinese target texts. The results point to no impact of task type on overall temporal effort, but indicate an impact on the cognitive effort related to source-text understanding and on technical effort related to target-text production. The study contributes to the body of knowledge in translation process research by providing results involving a logographic language, Chinese, which, so far, has been barely studied in the field.
Abstract. Dynamic logic programming allows the representation and the inference of evolving knowl... more Abstract. Dynamic logic programming allows the representation and the inference of evolving knowledge. Legal knowledge reasoning needs the capability to model laws that change over time and to model laws produced by distinct entities with different priorities at different time points.
In this work a proposal for automatic textual segmentation is described. The proposal uses the ou... more In this work a proposal for automatic textual segmentation is described. The proposal uses the output of an automatic syntactic analyzer–Parser Palavras–to create textual segmentation. Parse trees are used to infer text segments and a dependency tree of the identified segments. The main contribution of this work is the use of the syntactic structure as source for the automatic segmentation of texts, as well, as the use of inference rules for the textual organization.
Este Livro Branco, sobre a língua portuguesa na era di- is white paper about the Portuguese lang... more Este Livro Branco, sobre a língua portuguesa na era di- is white paper about the Portuguese language in the gital, faz parte de uma coleção que promove o conhecidigital age is part of a series that promotes knowledge mento sobre a tecnologia da linguagem eo seu potenabout language technology and its potential.
The need for the representation of both semantics and common sense and its organization in a lexi... more The need for the representation of both semantics and common sense and its organization in a lexical database or knowledge base has motivated the development of large projects, such as Wordnets, CYC and Mikrokosmos. Besides the generic bases, another approach is the construction of ontologies for specific domains. Among the advantages of such approach there is the possibility of a greater and more detailed coverage of a specific domain and its terminology.
In order to participate in dialogues, an agent needs the capability of modeling mental states. Sp... more In order to participate in dialogues, an agent needs the capability of modeling mental states. Specifically, it is necessary to represent the agent attitudes (beliefs, intentions, and objectives), world knowledge, and temporal, reasoning and behavior rules. In this paper, we propose a logic programming framework that allows the representation of agent models. Agents are defined as logic programs that are extended with explicit negation.
Abstract. Domain models have proven useful as the basis for the construction and evaluation of ar... more Abstract. Domain models have proven useful as the basis for the construction and evaluation of arguments to support deliberation about policy proposals. Using a model provides the means to systematically examine and understand the finegrained objections that individuals might have about the policy.
Information extraction from legal documents is an important and open problem. A mixed approach, u... more Information extraction from legal documents is an important and open problem. A mixed approach, using linguistic information and machine learning techniques, is described in this paper. In this approach, top-level legal concepts are identified and used for document classification using Support Vector Machines. Named entities, such as, locations, organizations, dates, and document references, are identified using semantic information from the output of a natural language parser.
Abstract In [ALP+ 00] we proposed a comprehensive solution to the problem of knowledge base updat... more Abstract In [ALP+ 00] we proposed a comprehensive solution to the problem of knowledge base updates. Given the original knowledge base KB and a set of update rules represented by the updating knowledge base KB, we defined a new updated knowledge base KB∗= KB⊕ KB that constitutes the update of the knowledge base KB by the knowledge base KB.
Apresenta-se, neste artigo, uma proposta de estruturação ontológica de verbos do domínio jurídico... more Apresenta-se, neste artigo, uma proposta de estruturação ontológica de verbos do domínio jurídico co m vistas ao aperfeiçoamento de sistemas de Processamento Automático da Língua Natural (PLN), mais especificamente, ao sistema de busca e extração de informações da Procuradoria Geral da República de Portugal. As relações lógico-semânticas, os papéis semânticos e os frames foram as abordagens semânticas que se mostraram mais produtivas para a construção da ontologia proposta.
Abstract. Support Vector Machines have been used successfully to classify text documents into set... more Abstract. Support Vector Machines have been used successfully to classify text documents into sets of concepts. However, typically, linguistic information is not being used in the classification process or its use has not been fully evaluated. In this paper we apply and evaluate two basic linguistic procedures (stop-word removal and stemming/lemmatization) to the multilabel classification problem of text documents.
Social Network (SN) is created whenever people interact with other people. Online SN gained consi... more Social Network (SN) is created whenever people interact with other people. Online SN gained considerable popularity in the last years such as Fa-cebook, Twitter and etc Twitter is SN and microblogging service that creates some interesting social network structures-follow relationships. Users follow someone mostly because they share common interests and they may exchange messages called tweets. If a user post a tweet, if their follower like it they repost it or retweet it.
Today, search engines for legal information retrieval do not include legal knowledge into their s... more Today, search engines for legal information retrieval do not include legal knowledge into their search strategies. These strategies include keyword and metadata search, but do not address the semantics of the keywords, which would allow, for instance, conceptual query expansion. In other words, there is no semantic relationship between information needs of the user and the information content of documents apart from text pattern matching.
Resumo Neste artigo apresentamos a metodologia seguida para a construçao de um sistema de pergunt... more Resumo Neste artigo apresentamos a metodologia seguida para a construçao de um sistema de perguntaresposta sobre uma base de documentos em Português. Descrevemos o sistema que tem dois módulos distintos: análise prévia dos documentos (extracçao de informaçao) e processamento das perguntas (recuperaçao de informaçao).
Resumo. Este artigo tem como objetivo apresentar a metodologia ea implementação computacional do ... more Resumo. Este artigo tem como objetivo apresentar a metodologia ea implementação computacional do Autema-Dis. Trata-se de uma arquitectura computacional elaborada para realizar a análise automática de texto e apresentar, ao final do processamento, uma estrutura representativa da macroproposição textual.
We present a logic programming framework implemented over Prolog which is able tomodel an agent&#... more We present a logic programming framework implemented over Prolog which is able tomodel an agent's mental state. An agent is modeled by a set of extended logic programmingrules representing the agent's behavior, attitudes (beliefs, intentions, and goals), worldknowledge, and temporal and reasoning procedures. At each stage the agents's mental stateis defined by the well founded model of the extended logic
In this paper a two-headed architecture designed for handling intelligent multimedia manmachinein... more In this paper a two-headed architecture designed for handling intelligent multimedia manmachineinteraction is described. In this work we are mainly interested in interactions thatmay consist only of natural language sentences and graphical actions and events (multimodalinteractions). The architecture is extended from Lopes [Lop91] and is composed of two decisionecenters (heads): an interactional and a reectional one. The interactional decision center isresponsible for the interaction with the user and consists of a handler ...
Dynamic logic programming allows the representation and the inference of evolv- ing knowledge. Le... more Dynamic logic programming allows the representation and the inference of evolv- ing knowledge. Legal knowledge reasoning needs the capability to model laws that change over time and to model laws produced by distinct entities with different priorities at differ- ent time points. In this paper we propose the use of dynamic logic programming to model these legal dynamic situations. Some
This paper reports an exploratory study aimed at investigating the impact of post-editing and tra... more This paper reports an exploratory study aimed at investigating the impact of post-editing and translation task execution in the Chinese-Portuguese language pair as performed by professional translators. Eye-tracking and keylogging data were used to assess temporal, technical and cognitive measures related to the understanding of two Portuguese source texts and the production of two Chinese target texts. The results point to no impact of task type on overall temporal effort, but indicate an impact on the cognitive effort related to source-text understanding and on technical effort related to target-text production. The study contributes to the body of knowledge in translation process research by providing results involving a logographic language, Chinese, which, so far, has been barely studied in the field.
Abstract. Dynamic logic programming allows the representation and the inference of evolving knowl... more Abstract. Dynamic logic programming allows the representation and the inference of evolving knowledge. Legal knowledge reasoning needs the capability to model laws that change over time and to model laws produced by distinct entities with different priorities at different time points.
In this work a proposal for automatic textual segmentation is described. The proposal uses the ou... more In this work a proposal for automatic textual segmentation is described. The proposal uses the output of an automatic syntactic analyzer–Parser Palavras–to create textual segmentation. Parse trees are used to infer text segments and a dependency tree of the identified segments. The main contribution of this work is the use of the syntactic structure as source for the automatic segmentation of texts, as well, as the use of inference rules for the textual organization.
Este Livro Branco, sobre a língua portuguesa na era di- is white paper about the Portuguese lang... more Este Livro Branco, sobre a língua portuguesa na era di- is white paper about the Portuguese language in the gital, faz parte de uma coleção que promove o conhecidigital age is part of a series that promotes knowledge mento sobre a tecnologia da linguagem eo seu potenabout language technology and its potential.
The need for the representation of both semantics and common sense and its organization in a lexi... more The need for the representation of both semantics and common sense and its organization in a lexical database or knowledge base has motivated the development of large projects, such as Wordnets, CYC and Mikrokosmos. Besides the generic bases, another approach is the construction of ontologies for specific domains. Among the advantages of such approach there is the possibility of a greater and more detailed coverage of a specific domain and its terminology.
In order to participate in dialogues, an agent needs the capability of modeling mental states. Sp... more In order to participate in dialogues, an agent needs the capability of modeling mental states. Specifically, it is necessary to represent the agent attitudes (beliefs, intentions, and objectives), world knowledge, and temporal, reasoning and behavior rules. In this paper, we propose a logic programming framework that allows the representation of agent models. Agents are defined as logic programs that are extended with explicit negation.
Abstract. Domain models have proven useful as the basis for the construction and evaluation of ar... more Abstract. Domain models have proven useful as the basis for the construction and evaluation of arguments to support deliberation about policy proposals. Using a model provides the means to systematically examine and understand the finegrained objections that individuals might have about the policy.
Information extraction from legal documents is an important and open problem. A mixed approach, u... more Information extraction from legal documents is an important and open problem. A mixed approach, using linguistic information and machine learning techniques, is described in this paper. In this approach, top-level legal concepts are identified and used for document classification using Support Vector Machines. Named entities, such as, locations, organizations, dates, and document references, are identified using semantic information from the output of a natural language parser.
Abstract In [ALP+ 00] we proposed a comprehensive solution to the problem of knowledge base updat... more Abstract In [ALP+ 00] we proposed a comprehensive solution to the problem of knowledge base updates. Given the original knowledge base KB and a set of update rules represented by the updating knowledge base KB, we defined a new updated knowledge base KB∗= KB⊕ KB that constitutes the update of the knowledge base KB by the knowledge base KB.
Apresenta-se, neste artigo, uma proposta de estruturação ontológica de verbos do domínio jurídico... more Apresenta-se, neste artigo, uma proposta de estruturação ontológica de verbos do domínio jurídico co m vistas ao aperfeiçoamento de sistemas de Processamento Automático da Língua Natural (PLN), mais especificamente, ao sistema de busca e extração de informações da Procuradoria Geral da República de Portugal. As relações lógico-semânticas, os papéis semânticos e os frames foram as abordagens semânticas que se mostraram mais produtivas para a construção da ontologia proposta.
Abstract. Support Vector Machines have been used successfully to classify text documents into set... more Abstract. Support Vector Machines have been used successfully to classify text documents into sets of concepts. However, typically, linguistic information is not being used in the classification process or its use has not been fully evaluated. In this paper we apply and evaluate two basic linguistic procedures (stop-word removal and stemming/lemmatization) to the multilabel classification problem of text documents.
Social Network (SN) is created whenever people interact with other people. Online SN gained consi... more Social Network (SN) is created whenever people interact with other people. Online SN gained considerable popularity in the last years such as Fa-cebook, Twitter and etc Twitter is SN and microblogging service that creates some interesting social network structures-follow relationships. Users follow someone mostly because they share common interests and they may exchange messages called tweets. If a user post a tweet, if their follower like it they repost it or retweet it.
Today, search engines for legal information retrieval do not include legal knowledge into their s... more Today, search engines for legal information retrieval do not include legal knowledge into their search strategies. These strategies include keyword and metadata search, but do not address the semantics of the keywords, which would allow, for instance, conceptual query expansion. In other words, there is no semantic relationship between information needs of the user and the information content of documents apart from text pattern matching.
Resumo Neste artigo apresentamos a metodologia seguida para a construçao de um sistema de pergunt... more Resumo Neste artigo apresentamos a metodologia seguida para a construçao de um sistema de perguntaresposta sobre uma base de documentos em Português. Descrevemos o sistema que tem dois módulos distintos: análise prévia dos documentos (extracçao de informaçao) e processamento das perguntas (recuperaçao de informaçao).
Resumo. Este artigo tem como objetivo apresentar a metodologia ea implementação computacional do ... more Resumo. Este artigo tem como objetivo apresentar a metodologia ea implementação computacional do Autema-Dis. Trata-se de uma arquitectura computacional elaborada para realizar a análise automática de texto e apresentar, ao final do processamento, uma estrutura representativa da macroproposição textual.
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