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Questions tagged [applied-theory]

Theoretical results and techniques applied in practical settings.

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Is a non-perfect improvement and optimisation?

In real word problems, the influence of multiple not perfectly known factors results in using heuristics instead of mathemacial solutions that calculates a perfect value from only precisly defined ...
Franz Kafka's user avatar
4 votes
2 answers
138 views

Where are M-Trees applied in practice?

My similarity search seminar topic are M-trees. I would like to give some examples about where they are practically applied, but I can't find anything googling. Does someone know if M-trees are ...
jederik's user avatar
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34 votes
3 answers
7k views

Encoding 1-out-of-n constraint for SAT solvers

I'm using a SAT solver to encode a problem, and as part of the SAT instance, I have boolean variables $x_1,x_2,\dots,x_n$ where it is intended that exactly one of these should be true and the rest ...
D.W.'s user avatar
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23 votes
3 answers
12k views

Practical Applications of Radix Sort

Radix sort is theoretically very fast when you know that the keys are in a certain limited range, say $n$ values in the range $[0\dots n^k -1]$ for example. If $k<\lg n$ you just convert the ...
Robert S. Barnes's user avatar
39 votes
6 answers
7k views

What use are groups, monoids, and rings in database computations?

Why would a company like Twitter be interested in algebraic concepts like groups, monoids and rings? See their repository at github:twitter/algebird. All I could find is: Implementations of ...
john mangual's user avatar
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5 votes
4 answers
12k views

Trigonometry in computer science

What's the use of studying trigonometry in computer science? I mean, is it essential? Does it have a specific application in computer science? Because I can't seem to muster enough motivation for ...
jantristanmilan's user avatar
5 votes
2 answers
557 views

What are some applications of binary finite fields in CS?

I was looking at details on finite fields. Finite binary fields, e.g. $\mathbb{F_2}$, are used in CS in some places such as circuit theory [1]. What are some key applications of finite fields in ...
vzn's user avatar
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19 votes
1 answer
280 views

Natural occurrences of monads that make use of the category-theoretical framework

Today, a talk by Henning Kerstan ("Trace Semantics for Probabilistic Transition Systems") confronted me with category theory for the first time. He has built a theoretical framework for describing ...
Raphael's user avatar
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35 votes
9 answers
5k views

What is the significance of context-sensitive (Type 1) languages?

Seeing that in the Chomsky Hierarchy Type 3 languages can be recognised by a state machine with no external memory (i.e., a finite automaton), Type 2 by a state machine with a single stack (i.e. a ...
bitmask's user avatar
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