Notícias falsas (fake news) são notícias com elementos inverídicos em sua estrutura e que podem interferir em eventos importantes, desde eleições a ações de combate a pandemias. Assim, algoritmos para classificação e detecção dessas notícias interessam à comunidade científica. Neste trabalho, desenvolvemos um modelo matemático baseado em modificações de um modelo anterior para detecção de fake news que considera componentes estruturais de notícias para sua classificação como verdadeira ou falsa. Além disso, implementamos um algoritmo genético para ponderação dos fatores de relevância. Resultados indicam uma melhor eficácia em comparação ao modelo utilizado como base.
The most popular and successful way to maintain a healthy body is to have a rich and balanced diet, combined with physical exercise. Since it was proposed the diet dilemma, several works in the literature suggested calculating a diet that respects an individual's nutritional needs. In the Caloric-Restricted Diet Problem (CRDP), the goal is to find a reduced-calorie diet that meets an individual's dietary needs aiming for weight loss. This paper proposes a Hybrid Island-Based Evolutionary Algorithm (IBHEA) that combines a Genetic Algorithm (GA) with a Differential Evolution (DE) communicating through a migration policy to solve the CRDP. Computational experiments showed that IBHEA outperforms the non-distributed and non-hybrid implementations, generating a greater variety of diets with a small calorie count.
The most popular and successful way to maintain a healthy body is to have a rich and balanced diet, combined with physical exercise. Since it was proposed the diet dilemma, several works in the literature suggested calculating a diet that respects an individual's nutritional needs. In the Caloric-Restricted Diet Problem (CRDP), the goal is to find a reduced-calorie diet that meets an individual's dietary needs aiming for weight loss. This paper proposes a Hybrid Island-Based Evolutionary Algorithm (IBHEA) that combines a Genetic Algorithm (GA) with a Differential Evolution (DE) communicating through a migration policy to solve the CRDP. Computational experiments showed that IBHEA outperforms the non-distributed and non-hybrid implementations, generating a greater variety of diets with a small calorie count.
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