Glosary of Information Theory

Cyclic codes
They are linear block error-correcting codes that have convenient algebraic structures for efficient error detection and correction.

Matrix theory
It's a branch of mathematics which is focused on study of matrices. Initially, it was a sub-branch of linear algebra, but soon it grew to cover subjects related to graph theory, algebra, combinatorics and statistics as well.

Merge
In the context of information theory is like mixing, adding in dictionaries, matrixes and files. 
 
Signal
In the context of information theory is a kind of signal generated by a electromagnetic phenomenon and in each sign codify a content that can be analyzed.

Previous
In the context of theory information could be a file size before it's compressed.

Weakness
In the context of theory information could be if the compression ratio is too low.

Unique
In the context of theory information could be a unique key that could be used for the dictionary as a reference.

Ignore
In the context of theory information could a certain bits that can be used for represent white spaces.

Emit
In the context of theory information could apply in adaptative encoding while the code is compressing a file and when it's require to change some logic of the code you can emit a kind of signal.

Reconstruction
In the context of theory information can be a method that decode a compress file.

Target
 In the context of theory information can be a method that encode a file that is a target.

References.

Cyclic code
http://en.wikipedia.org/wiki/Cyclic_code

Matrix theory
http://en.wikipedia.org/wiki/Category:Matrix_theory