As of my last knowledge update in October 2021, "Jules Drach" doesn't refer to a widely recognized term, person, or concept. It could potentially be a name of a person, a fictional character, or something specific that has emerged after that date.

In the context of Wikipedia and other online encyclopedias, a "stub" is a term used to describe an article that is very short or incomplete and requires additional information to provide a more comprehensive overview of the topic. A "computer scientist stub" specifically refers to a stub article that pertains to an individual who is a computer scientist.

Ashish Vaswani is a prominent researcher in the field of artificial intelligence and machine learning, particularly known for his contributions to natural language processing (NLP). He is one of the co-authors of the influential paper "Attention is All You Need," which introduced the Transformer model in 2017. This model has since transformed the landscape of NLP and has become the foundation for many state-of-the-art architectures, including BERT, GPT, and others.

Eliécer Ávila is a Cuban engineer, politician, and activist known for his work advocating for political and social change in Cuba. He gained prominence as a young leader in the Cuban opposition movement, particularly through his participation in various civic initiatives aimed at promoting democracy and human rights on the island. Ávila has also been associated with the political party **Cuba Decide**, which seeks to promote a democratic transition in Cuba.

Guy David is a mathematician known for his contributions to the fields of analysis, particularly in relation to geometric measure theory and harmonic analysis. He has worked on various topics, including singular integrals, the structure of sets of finite perimeter, and the properties of measures. David is also recognized for his work on concepts related to "rectifiability" and "curvature" in higher dimensions, which are important in understanding geometric properties of sets.

Haar-like features are a type of simple rectangular feature used in computer vision, particularly in object detection tasks, such as face detection. They were popularized by the Viola-Jones object detection framework, which utilizes these features for rapid detection of objects in images. ### Characteristics of Haar-like Features: 1. **Structure**: Haar-like features are essentially the difference in intensity between rectangular regions of an image. They are computed as differences of sums of pixels in these regions.

A Haar space is a concept that arises in the context of measure theory and functional analysis, particularly in relation to the study of topological groups and their representations. The term "Haar" often refers to the Haar measure, named after mathematician Alfréd Haar, which is a way of defining a "uniform" measure on locally compact topological groups.

A half hull model is a type of ship model that represents one side of a ship’s hull, typically mounted on a board. These models are often used for a variety of purposes including design, presentation, and education. They can serve as a visual representation of a vessel's hull shape and characteristics without the need for a full three-dimensional model. Half hull models are usually built to scale and can be made from different materials such as wood, plastic, or fiberglass.

Hans Breuer is a physicist known for his contributions to the fields of experimental and theoretical physics. While specific details about his work and accomplishments might not be widely publicized, he is recognized within certain academic circles.

Hans Busch can refer to different subjects depending on the context. One widely recognized reference is to the German physicist Hans Busch (1883–1964), who is known for his contributions to the field of electron optics and his work on electron lenses. His pioneering research was important in the development of electron microscopy.

Hans Joachim Schellnhuber is a prominent German climate scientist and physicist, known for his research on climate change and its impacts. He is the founding director of the Postdam Institute for Climate Impact Research (PIK) and has made significant contributions to the understanding of climate dynamics, including climate system modeling and the potential impacts of climate change on ecosystems and human societies.

Hardy spaces are a class of function spaces that are important in complex analysis, signal processing, and numerous areas of mathematical analysis. They are particularly useful in the study of bounded analytic functions on the unit disk and have connections to various topics, including operator theory, harmonic analysis, and function theory. ### Definition of Hardy Spaces: The most commonly studied Hardy spaces are denoted as \( H^p \) spaces for \( 0 < p < \infty \).

Harold Brown served as the United States Secretary of Defense from 1977 to 1981 under President Jimmy Carter. Born on September 19, 1927, Brown was an influential figure during a time of significant challenges in U.S. defense policy, including handling issues related to nuclear strategy, arms control, and the Cold War dynamics. Before becoming Secretary of Defense, Brown held various positions, including serving as the Secretary of the Air Force and working at the RAND Corporation.

Harold Roper Robinson is not a widely recognized name in popular culture, history, or prominent fields such as science or literature as of my last knowledge update in October 2023. It is possible that he could be a private individual or a niche figure in a specific context, but there is no significant or well-known information available about him.