Entrevista com Milton Barbosa

Barbosa A conversation with Frederico Simões Barbosa

- Luciano Barbosa

For the past ten years, I have worked on several problems related to finding and organizing Web data. From 1999 to 2002, I was a lead developer for Radix, one of the first Brazilian search engines. During my Masters, I designed and implemented a Web crawling policy that uses classification techniques to efficiently update a search engine index while maximizing its freshness [11]. After finishin...

Estudio experimental de la efectividad de la entrevista abierta frente a la entrevista independiente de contexto

Resumen. OBJETIVO: Estudiar la efectividad relativa de las técnicas de entrevista abierta y entrevista independiente de contexto en la identificación de requisitos para sistemas software. MÉTODO: Experimento controlado ensayando dos factores: “tipo de entrevista” (abierta e independiente de contexto) y “tipo de problema” (identificación de requisitos para dos sistemas software distintos). Debid...

Barbosa, Uniform Polynomial Time Bounds, and Promises

This note is a commentary on, and critique of, André Luiz Barbosa’s paper entitled “P != NP Proof.” Despite its provocative title, what the paper is seeking to do is not to prove P 6= NP in the standard sense in which that notation is used in the literature. Rather, Barbosa is (and is aware that he is) arguing that a different meaning should be associated with the notation P 6= NP, and he claim...

Milton Charles Winternitz

I do not remember my first meeting with Winternitz, but, when the full-time clinical experiment was launched in Baltimore, Winternitz was one of my first customers. He was and still is one of our ablest medical scientists. In his account of William Henry Welch and the Heroic Age of American Medicine, my brother, Simon, speaks of a group which included such brilliant men as MacCallum, Opie, G.H....