Pattern Miner and missing libTestPatternMinerAgent.so

[vishnup...@gmail.com]

Hello all,

I tried running pattern Miner. I did the following:

1. installed Boost
2. installed cpprest
3. started cogserver
4. Loaded,  `opencog> loadmodule opencog/learning/PatternMiner/libTestPatternMinerAgent.so`

But it displayed :

`opencog> loadmodule opencog/learning/PatternMiner/libTestPatternMinerAgent.so

 Unable to load module "opencog/learning/PatternMiner/libTestPatternMinerAgent.so". Check the server logs for details.`

I also checked for the libTestPatternMinerAgent shared object file. But there is no such .so file inside Pattern Miner folder.

How can i solve this?

Thanks in advance.

Regards,

Vishnu.

 

[Ben Goertzel]

Did you try the steps here?

http://wiki.opencog.org/wikihome/index.php/Pattern_miner#Steps_to_run_a_non-distributed_pattern_miner_test

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[vishnup...@gmail.com]

Yes Ben. 

[Ben Goertzel]

I remember Nil met a vaguely similar problem here, due to some missing
linkage...

https://groups.google.com/forum/#!msg/opencog/7A0WDFrTKhk/UNakwr9GAQAJ

On Tue, Aug 30, 2016 at 11:47 PM, <vishnup...@gmail.com> wrote:
>
> Yes Ben.

>
>>
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[vishnup...@gmail.com]

Thanks for the reply Ben. 

 Yeah I checked the post. But I could not understand about the linkage problem. 

NIL---> "Anyway, if the pattern miner on that branch isn't better I obviously 
prefer to use the one on the master. Just haven't figured out what is 
the missing function corresponding to that symbol 
_ZN7opencog11OBJECT_NODEE, but I should soon."

   NIL---> "I feel the dumbest person on earth... That object is 

   opencog::OBJECT_NODE 
   !!! Now I just need to find the missing linkage. "

   Totally unable to figure it out :-(

[vishnup...@gmail.com]

For Nil, this was the problem. He got something like undefined symbol. 

[2016-06-29 05:43:14:123] [WARN] Unable to load module

"/home/nilg/OpenCog/opencog/build/opencog/learning/PatternMiner/libTestPatternMinerAgent.so": 

/home/nilg/OpenCog/opencog/build/opencog/learning/PatternMiner/libPatternMiner.so: 

undefined symbol: _ZN7opencog11OBJECT_NODEE 

but for me,

 opencog> loadmodule opencog/learning/PatternMiner/libTestPatternMinerAgent.so

 Unable to load module "opencog/learning/PatternMiner/libTestPatternMinerAgent.so". Check the server logs for details. 

 

there is no " libTestPatternMinerAgent.so".  I checked even server log, it is also saying "libTestPatternMineragent.so "- no such file or directory.

 

[Linas Vepstas]

On Tue, Aug 30, 2016 at 4:44 PM, <vishnup...@gmail.com> wrote:

Thanks for the reply Ben. 

 Yeah I checked the post. But I could not understand about the linkage problem. 

NIL---> "Anyway, if the pattern miner on that branch isn't better I obviously 
prefer to use the one on the master. Just haven't figured out what is 
the missing function corresponding to that symbol 
_ZN7opencog11OBJECT_NODEE, but I should soon."

   NIL---> "I feel the dumbest person on earth... That object is 

   opencog::OBJECT_NODE 
   !!! Now I just need to find the missing linkage. "

   Totally unable to figure it out :-(

Is this still an issue? 

 OBJECT_NODE is defined in spacetime/atom_types.script and the way to resolve the linkage issue is to link to libspacetime-types.so

However, I am confused, because .. oh never mind. the makefile for timeoctomap is wrong. I will fix in here in 10 minutes.

--linas

To view this discussion on the web visit https://groups.google.com/d/msgid/opencog/785f8e87-5a15-421f-9ec5-6da3e2c249d9%40googlegroups.com.

[Linas Vepstas]

Here: this commit should fix this problem (and Nil's original problem)

https://github.com/opencog/opencog/commit/260f95a01af82ff47b56bfa4405a9dcca6b4d7ef

--linas

[vishnup...@gmail.com]

 

After making modifications in the CmakeLists.txt  as per the commit,  From the build directory of opencog, i did 

     cmake ..

     make 

     sudo make install. 

Then started the cogserver 

[vishnup...@gmail.com]

Thanks Linas for the reply.

Sorry it was an incomplete post.

After making modifications in the CmakeLists.txt  as per the commit,  From the build directory of opencog, i did 

1.      cmake ..
   
2.      make 
   
3.      sudo make install. 
   

1.      started the cogserver on the port 17001
   
2.      Then  loaded  opencog> loadmodule opencog/learning/PatternMiner/libTestPatternMinerAgent.so
   

1.  Unable to load module "opencog/learning/PatternMiner/libTestPatternMinerAgent.so". Check the server logs for details
   

Still libTestPatternMinerAgent.so is missing.  In the cogserver log, it says no such file or directory. 

Am i missing anything?

-Vishnu

[Linas Vepstas]

you have to provide the full explicit path to the module, starting with the leading slash.  Clearly, whatever default paths that are being searched do not include the directory in which the thing lives, for you.

--linas

[vishnup...@gmail.com]

 Thanks Linas !!  It is successful :-))

--Vishnu

[Misgana Bayetta]

Hi, try with absolute path and full log is found in /tmp/cogserver.log incase the loading fails.

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[vishnup...@gmail.com]

Thanks Misgana!

[vishnup...@gmail.com]

when i run non-distributed pattern miner test, the default test file is ugly_male_soda-drinker_corpus.scm.  How can i change the input file.  i.e. Where should i place my scm file or how can i invoke my scm file?

[vishnup...@gmail.com]

it is a silly question! 

Just in the opencog_patternminer.conf file changed the scm file, which i want to give as an input.