Hashing is a process used to convert data of any size into a fixed-size string of characters, which is typically a sequence of alphanumeric characters. This process utilizes mathematical algorithms known as hash functions. The output, called a hash value or hash code, is unique (within practical limits) to the specific input data. ### Key Characteristics of Hashing: 1. **Deterministic**: The same input will always produce the same hash output.
An **Anytime algorithm** is a type of algorithm that can provide a valid solution to a problem even if it is interrupted before it has fully completed its execution. This means that the algorithm can be run for a variable amount of time, and it will return the best solution it has found up to that point when it finishes or is stopped.
Best Bin First (BBF) is a data structure and algorithmic technique often used in spatial data management, particularly in the context of algorithms for spatial queries, such as closest point searching, range searching, or other location-based queries. The BBF approach involves the following concepts: 1. **Spatial Data Partitioning**: Spatial data is divided into bins or regions based on certain characteristics (e.g., spatial location). Each bin can contain one or more data points.
Combinatorial search refers to a set of methods and techniques used to explore and solve problems that can be represented as a combination of discrete elements. These problems often involve finding optimal arrangements or selections from a finite set of possibilities, where the number of possible solutions increases exponentially with the size of the input. Key aspects of combinatorial search include: 1. **Problem Representation**: Problems are often represented in terms of combinatorial structures such as graphs, trees, or sets.
Fractional cascading is a data structure technique used to optimize the search operations across multiple, related data structures, often to improve the efficiency of searching in a multi-level or multi-dimensional context. The main idea behind fractional cascading is to create a way to quickly locate an item across several sorted lists (or other data structures).
Query expansion is a technique used in information retrieval systems to improve the accuracy and relevance of search results by enhancing the original query with additional terms or phrases. The goal of query expansion is to broaden the search scope and capture documents that may not contain the exact terms originally used in the query but are still relevant to the user's intent.
SSS* is an abbreviation for "Static Single Assignment" form, which is a property of an intermediate representation used in compilers. In the context of programming languages and compiler design, SSS* is an enhancement of the Static Single Assignment (SSA) form. In SSA form, each variable is assigned exactly once, and every variable is defined before it is used, which simplifies various compiler optimizations.
Karl Kunisch is a renowned figure in the field of mathematics, particularly known for his contributions to numerical analysis and optimal control. He has worked extensively on mathematical modeling, optimization problems, and the application of various mathematical techniques to engineering and physical sciences. His work often involves partial differential equations (PDEs) and their applications in various domains. Additionally, Kunisch has been involved in academic teaching and research, contributing to advancements in both theoretical and applied mathematics.
The Solovay model is a concept in set theory and mathematical logic that relates to the study of the foundations of mathematics, particularly in the context of the Axiom of Choice and related principles. It is named after the mathematician Robert Solovay, who developed it in the 1960s. The Solovay model provides an example of a model of set theory in which certain properties related to cardinalities and the Axiom of Choice hold or fail.
Relaxosome is a specialized protein complex found in some bacteria that is involved in the process of conjugation, a mechanism of horizontal gene transfer. Conjugation allows for the transfer of genetic material, particularly plasmids, from one bacterium to another through direct contact. The relaxosome is essential for the initiation of plasmid transfer; it is responsible for recognizing specific DNA sequences on the plasmid, unwinding the DNA, and preparing it for transfer.
Sigmund Gundelfinger was a notable figure in the field of psychology, particularly known for his work on the relationship between psychoanalysis and literature. He gained recognition for his contributions to the understanding of human behavior and thought processes through the lens of psychoanalytic theory. His insights explored the complexities of the human psyche and the ways in which literature can reflect and influence psychological states.
The Signs of Life Detector (SoLD) is a scientific instrument designed to detect and analyze potential signs of life, particularly in extraterrestrial environments. Developed as part of astrobiological research, SoLD focuses on identifying organic materials and biological markers in various samples, such as soil or rock. The SoLD typically utilizes techniques that may include: 1. **DNA/RNA Detection**: To identify genetic material that could indicate the presence of life.
Silver Surfer is a fictional character appearing in comic books published by Marvel Comics. Created by writer Stan Lee and artist Jack Kirby, the character first appeared in "Fantastic Four" #48 in 1966. Silver Surfer, whose real name is Norrin Radd, hails from the planet Zenn-La. He becomes the Silver Surfer after making a deal with Galactus, the cosmic entity that devours planets, to save his home world from destruction.
In geometry, similarity refers to a fundamental relationship between two shapes or figures that have the same form but may differ in size. Two geometric figures are considered similar if they have: 1. **The same shape**: This means that the angles of both figures are congruent (equal), and the sides of the figures are in proportion. 2. **Proportional corresponding sides**: The lengths of the corresponding sides of the two figures maintain a constant ratio.
Simple Public Key Infrastructure (SPKI) is a method for managing public key cryptography that simplifies some of the complexities associated with traditional Public Key Infrastructure (PKI). While traditional PKI often involves a hierarchical structure of Certificate Authorities (CAs) to issue and manage digital certificates, SPKI aims to provide a more straightforward and flexible approach.
Single molecule fluorescent sequencing (SMFS) is a next-generation sequencing technology that allows for the direct observation and sequencing of individual DNA or RNA molecules using fluorescent labeling. This technique stands out from traditional sequencing methods, which typically involve amplifying DNA before sequencing, as it provides higher accuracy and the ability to analyze longer contiguous sequences.
Sketch recognition is a technology and field of research that focuses on identifying and interpreting hand-drawn sketches and diagrams made by users. The goal is to enable computers to understand and process these sketches in a way that mimics human understanding. ### Key Aspects of Sketch Recognition: 1. **Input Types**: - Sketch recognition can involve various forms of input, including freehand drawings, geometric shapes, and diagrams created with styluses or touchscreens.
Slot insulation refers to the materials used to insulate the slots in electric motors, generators, and transformers. The slots are the spaces within the stator or rotor where the windings (coils of wire) are placed. Proper insulation is critical in these applications for several reasons: 1. **Electrical Insulation**: It prevents short circuits between the windings and the core, ensuring that electrical energy flows correctly through the motor or generator.
The term "sluice" can refer to different things depending on the context in which it is used. Here are a few common meanings: 1. **Water Management**: In hydraulic engineering, a sluice is a water channel or gate used to control the flow of water. It can be part of a larger irrigation system, dam, or waterway, allowing for the regulation of water levels and flow rates.
Słupsk Bank, also known as Bank Słupsk, was a regional cooperative bank located in the city of Słupsk, Poland. It primarily served local communities and small businesses, offering various banking services such as savings accounts, loans, and other financial products tailored to the needs of its clientele. Cooperative banks in Poland, like Słupsk Bank, typically focus on local development and community engagement.

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 2.
    You can publish local OurBigBook lightweight markup files to either https://OurBigBook.com or as a static website
    .
    Figure 3.
    Visual Studio Code extension installation
    .
    Figure 4.
    Visual Studio Code extension tree navigation
    .
    Figure 5.
    Web editor
    . 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.
    Video 4.
    OurBigBook Visual Studio Code extension editing and navigation demo
    . Source.
  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