Some questions about the most fundamental concepts

[Apil Tamang]

Hi All,

Reading this page: http://wiki.opencog.org/w/Getting_Started

Great concise introduction. I like to believe that this is ALL there really is to opencog, i,e the atoms, the atomspace, and mind-agents, and that any/every-thing that manifests out of opencog in all its variants, is the result of mind-agents interacting with the atomspace. The wiki also does say:

There are two main types of atoms, nodes and links, and atoms can have further sub-types, such as being directed .....

Question 1. To be unequivocally clear, are atoms really ONLy of the two types: i.e. Nodes and Links? Are all other atoms sub-type of one of these former types? 

There's another section that goes as follows:

 

Interacting with the AtomSpace
All atoms referred to by Handles.

• TLB - converts handles into pointers to atoms and check validity of a handle.

• AtomSpace - API for interface to the hypergraph, getHandleSet methods, getType.

• AtomTable - an implementation of atom storage, several indexes to ensure fast lookup by type and importance. Shouldn't need to be accessed directly.

Question 2. What is TLB ? Is it some form of an opencog entity, or a software artifact ? Could use some clarification here.

Thanks. Feel free to explain at any depth.

[Linas Vepstas]

On Sat, Oct 29, 2016 at 12:20 PM, Apil Tamang <apil.tama...@gmail.com> wrote:

Hi All,

Reading this page: http://wiki.opencog.org/w/Getting_Started

Great concise introduction. I like to believe that this is ALL there really is to opencog, i,e the atoms, the atomspace, and mind-agents, and that any/every-thing that manifests out of opencog in all its variants, is the result of mind-agents interacting with the atomspace. The wiki also does say:

There are two main types of atoms, nodes and links, and atoms can have further sub-types, such as being directed .....

Question 1. To be unequivocally clear, are atoms really ONLy of the two types: i.e. Nodes and Links? Are all other atoms sub-type of one of these former types? 

Well, there is a third type, called "values" but these are incompletely implemented, and not ready for general use.

 

There's another section that goes as follows:

 

Interacting with the AtomSpace
All atoms referred to by Handles.

• TLB - converts handles into pointers to atoms and check validity of a handle.

All mention of handles and tlb's should be removed.

 

• AtomSpace - API for interface to the hypergraph, getHandleSet methods, getType.

• AtomTable - an implementation of atom storage, several indexes to ensure fast lookup by type and importance. Shouldn't need to be accessed directly.

Question 2. What is TLB ? Is it some form of an opencog entity, or a software artifact ? Could use some clarification here.

The TLB is a deprecated part of the internal architecture.  It's in the process of being removed.

 

--linas

Thanks. Feel free to explain at any depth.

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