Algorithmic probability is a concept in the field of algorithmic information theory that attempts to quantify the likelihood of a particular sequence or object being produced by a random process, specifically one modeled by a universal Turing machine. The idea is rooted in the principles of Kolmogorov complexity, which deals with the complexity of objects based on the shortest possible description (or program) that can generate them.
Al-Ḥajjāj ibn Yūsuf ibn Maṭar is not a widely recognized historical figure, and it is possible that you might be referring to Al-Ḥajjāj ibn Yūsuf, a prominent figure in early Islamic history. Al-Ḥajjāj ibn Yūsuf al-Thaqafī (circa 661–714 CE) was a governor of Iraq during the Umayyad Caliphate.
Allvar Gullstrand was a Swedish ophthalmologist and a Nobel Prize laureate born on June 5, 1862, and he passed away on July 28, 1930. He is best known for his work in the field of vision and optics.
Polyptoton is a rhetorical device that involves the repetition of a word in different forms or grammatical cases within the same sentence or passage. This technique often emphasizes a particular concept or theme by showcasing the versatility of the word and its meanings. It can also create a pleasing rhythmic effect in the text.
Alice Bean is a significant figure in the field of physics, known primarily for her work in experimental particle physics. She has contributed to various research efforts, particularly in the study of neutrinos and other fundamental particles. Her work often involves large-scale experiments and collaboration with international research teams at institutions such as CERN or Fermilab.
Alice Burks is a notable figure in the history of computer science, particularly recognized for her contributions to the development of early computing concepts and technologies. She was a key member of the team that worked on the ENIAC (Electronic Numerical Integrator and Computer), one of the first general-purpose digital computers, during the 1940s.
Alice Vrielink may not be a widely recognized figure or concept as of my last training cut-off in October 2023. It's possible that she could be an emerging public figure, a private individual, or a character from a specific work of fiction, art, or media that has gained attention after that date.
Alice White was an American physicist known for her significant contributions to the fields of nuclear physics and radiochemistry. Born in 1900, she was one of the early female scientists in a predominantly male field, and she played an important role in the development of nuclear science. White is perhaps best known for her work at the Massachusetts Institute of Technology (MIT) and the U.S. Atomic Energy Commission.
Precision and recall are two important metrics used to evaluate the performance of classification models, particularly in settings where the classes are imbalanced or when the cost of false positives and false negatives differs significantly. ### Precision - **Definition**: Precision is the ratio of true positive predictions to the total number of positive predictions made by the model. It answers the question: "Of all the instances that were predicted as positive, how many were actually positive?
An Alkali-metal thermal-to-electric converter (AMTEC) is a type of thermal energy conversion device that directly converts thermal energy into electrical energy using alkali metals, typically sodium or potassium, as the working fluid. The basic principle leverages the high vapor pressure and conductivity of alkali metals at elevated temperatures. ### How It Works: 1. **Heating**: The alkali metal is heated to high temperatures, where it vaporizes.
As of my last knowledge update in October 2021, Allan Birnbaum is not a widely recognized public figure or term in mainstream discourse. It's possible that he might be an individual known within specific contexts, such as academia, local community, arts, or other fields, but detailed information about him isn't readily available.
The Allee effect is a phenomenon in ecology and population biology that describes a situation in which the population growth of a species slows down or becomes negative at low population densities. It suggests that individuals in a population may have a harder time surviving or reproducing when the population size is below a certain threshold, leading to difficulties in finding mates, limited social interaction, and reduced genetic diversity.
Shashikumar Chitre is a notable Indian astrophysicist known for his contributions to the field of astrophysics and astronomy. He has made significant advancements in areas such as stellar dynamics and cosmic structure. In addition to his scientific work, Chitre has been involved in various educational and public outreach initiatives to promote scientific understanding and interest in astronomy.
The Alpine planetary boundary layer (PBL) refers to the lower part of the atmosphere in alpine or mountainous regions, where the effects of the terrain significantly influence meteorological processes. The planetary boundary layer itself is the lowest part of the atmosphere, typically extending from the earth's surface up to about 1-2 kilometers (depending on local conditions), where turbulence, surface friction, and local heat exchanges play a dominant role in weather and climate phenomena.
Paul Callaghan may refer to different individuals, but one notable figure is the New Zealand physicist and biophysicist who was known for his work in the field of science and his contributions to advancing science education in New Zealand. He was also a prominent advocate for science communication and public understanding of science. Callaghan received various awards for his research and was well-respected in the scientific community.
American logicians refer to philosophers and scholars in the United States who focus on the study of logic, a branch of philosophy and mathematics that deals with the principles of valid reasoning and inference. The history of American logic is rich and varied, with key figures contributing to different areas of the field.
An alternant hydrocarbon is a type of polycyclic aromatic hydrocarbon (PAH) that exhibits a specific structural property: it contains alternating single and double bonds in its carbon framework, typically in a planar arrangement. These hydrocarbons have a regular alternation of carbon-carbon bonds, meaning that no two adjacent bonds are of the same type (single or double).
Marek Żukowski is a Polish physicist known for his contributions to the field of quantum optics and quantum information. He has been involved in research related to quantum entanglement, quantum cryptography, and various aspects of quantum theory. Żukowski has co-authored numerous scientific papers and has played a significant role in the development of experimental techniques in quantum physics.
Ambient pressure refers to the pressure exerted by the weight of the atmosphere at a given location, as well as the pressure of any surrounding gaseous substances in the environment. It is often considered the baseline pressure that exists in a specific environment, typically measured in units such as Pascals (Pa), atmospheres (atm), or millimeters of mercury (mmHg).

Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 5. . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact