On 3/23/21 1:01 PM, Michele Thiella wrote:
- In reply to Nil: (on Slack i'm named Raschild)
I had seen the beginning of the work and it is very interesting. In the
next few days I will look at the current state.
Two quick questions:
1) How complicated is it to work directly with Ros + Gazebo compared to
Malmo and Gym?
I don't know as I've never used Ros or Gazebo. Working with Malmo and
Gym is fairly easy but that's cause they have been designed this way,
and as a result they are fairly limited. For instance the communication
protocol is completely synchronous, it's certainly not something you'd
want to use to control a robot.
2) Are Values already usable instead of OctoMap and SpaceTime server?
At the current stage ROCCA uses neither values, nor even octomap or
spacetime server. Everything, including spacetime events, lives in the
atomspace, which is extremely inefficient but is not my concern for now.
My concern is to build an agent that makes decisions as rationally as
possible, in unknown and uncertain environments.
In conclusion:
* My master's proposal has already been accepted with the proviso to get
a feasible project. So, aim for a goal and try to achieve it. If so,
excellent; if not, show why it failed (I will try to avoid it).
* The direction of the project is still incomplete. Unfortunately, i
can't figure out if it takes me 1 day, 1 month or 1 year to
understand/implement a certain code.
I started with the reasoning: I am currently learning the inference
rules and how they work with the atomspace, I have seen part of the
examples in ure and pln and I was trying to understand the blocksworld
problem developed by Anatoly Belikov here:
https://github.com/noskill/ure/tree/planning/examples/ure/planning
* Ideally my goal was to extend the "model of the world" to work more
with objects than people and to extend the "self-model" to execute
navigation and manipulation plans. In all of this, I haven't yet
explored the learning.
Based on what you're saying I think ROCCA would be a good fit. Consider
of course that it is very early stage. I don't mind to semi-mentor you
as long as you're somewhat autonomous (which you seem to be).
Do you want to have a call (say Friday, as it's ROCCA day for me)? I
could walk you through the code, to help you decide whether you want to
work on it, or else work on Eva.
Nil
Michele
Il giorno martedì 23 marzo 2021 alle 06:19:25 UTC+1 Nil ha scritto:
Forwarding to opencog as I forgot to reply-all.
-------- Forwarded Message --------
Subject: Re: New user [was Re: [opencog-dev] Problem in atom deletion
from postgreSQL
Date: Tue, 23 Mar 2021 07:15:10 +0200
From: Nil Geisweiller <[email protected]>
To: Michele Thiella <[email protected]>
Hi Michele,
I'm working on something that might be relevant to your work, see
https://github.com/opencog/rocca <https://github.com/opencog/rocca>
https://github.com/singnet/rocca <https://github.com/singnet/rocca>
(mirror)
it's a WIP and advancing slowly due to myself being involved with other
projects, but it has IMO much potential, especially in term of
leveraging OpenCog reasoning capabilities, if that's what your into.
Nil
On 3/21/21 1:10 PM, Michele Thiella wrote:
> You're right, I didn't introduce myself properly! I mentioned my
plans
> in response to one of the previous conversations but it was the
wrong
> place so it got lost.
> Let's start again in the right way:
>
> Hello everyone, I'm Michele Thiella from Italy (Padua).
> I am about to graduate in Computer Engineering at the University
of Padua.
> I have always been passionate about artificial intelligence and,
more
> generally, about everything that has not yet been
> invented/discovered/solved.
> About 6 months ago I chose the path for my master's thesis: AGI. I
> started reading around until I got to you and I was blown away.
> I presented your work (roughly) to my Thesis Supervisors, trying
to get
> approval for a thesis involving OpenCog.
> And here we are.
>
> For my thesis the proposal would be to use OpenCog to do TAMP.
> More precisely, using a simplified version of Sophia's architecture,
> switching Blender with Ros and Sophia with a much simpler robot.
> Leaving out the emotional sphere of the robot and aiming at the
> resolution of objectives, perhaps achieving cooperation between
robots
> through a single knowledge base.
> Or at least that was the idea.
>
> I don't think I explained it the way I wanted but I hope it goes
well.
>
> Il giorno sabato 20 marzo 2021 alle 20:04:05 UTC+1 linas ha scritto:
>
> So, out of curiosity, what are you using OpenCog for? What are you
> attempting to do? You're new here, you should introduce yourself!
>
> -- Linas
>
> On Thu, Mar 11, 2021 at 12:42 PM Michele Thiella
> <[email protected]> wrote:
>
>
> You were right! After the pull everything works! It works so
> well that it has kept the backwards-compat layer and it works
> even without the exclamation mark haha
>
> Regarding RockDB, I tried to install it but now I don't remember
> at what point I stopped and why .. but I definitely had space
> problems. Too bad because it inspired me a lot as storage,
> anyway 50% slower is really a lot!
> However (unfortunately) I have skills with postgresql so for now
> I am satisfied, since everything works.
> Thanks a lot for the answer! Good work!
>
> Michele Thiella
> Il giorno mercoledì 10 marzo 2021 alle 23:35:42 UTC+1 linas ha
> scritto:
>
> Hi Michele,
>
> Just around the same time that you sent this message (or a
> day before?) I spotted and fixed a problem with atom
> deletion. So, please try rebuilding and reinstalling the
> atomspace. (git pull; cd build; make -j; sudo make install)
> -- let me know if that solves the problem.
>
> Note also, the proper name is cog-delete! (with an
> exclamation mark at the end) I may have removed the
> backwards-compat layer that allowed it to work without the
> exclamation mark..
>
> Note also: there is a RocksDB backend too. It might be
> easier to use (no config required). In some synthetic
> benchmarks, its 2x or 3x faster than postgres. In the one
> "real-life" app that I'm using, its 10%-50% slower. Go
> figure. Anyway its at
> https://github.com/opencog/atomspace-rocks
<https://github.com/opencog/atomspace-rocks>
> <https://github.com/opencog/atomspace-rocks
<https://github.com/opencog/atomspace-rocks>>
>
> (There is also a network server backend:
> https://github.com/opencog/atomspace-cog
<https://github.com/opencog/atomspace-cog>
> <https://github.com/opencog/atomspace-cog
<https://github.com/opencog/atomspace-cog>> ... the README
> explains more)
>
> -- Linas
>
> On Mon, Mar 8, 2021 at 3:58 AM Michele Thiella
> <[email protected]> wrote:
>
> Goodmorning everyone,
> i have a simple problem about deleting atoms in postgresql.
> According to what I understand, to delete an atom saved
> in postgres I should use:
> (cog-delete (Concept "asdf"))
> The command is successful, the atom is removed from the
> atomspace but not from the postgresql database. Could
> someone kindly tell me why?
> The prostgresql backend should be configured correctly,
> according to the guide on the wiki ... saving new atoms
> in the database works.
> Thanks in advance, I apologize for the inconvenience
>
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