Hi Rupert,
Thanks for the instructions. I have tried to change manually the
configuration and I'm experimenting a weird behaviour. Creating a config
file with a custom name in the fileinstall directory doesn't have any
effect. After doing that, I can't see a new EntityHub Linking engine
instance in the Felix Console. Maybe, it doesn't have to appear at all,
I don't know.
Therefore, I have tried then to create a new instance with Felix Console
and change the configuration manually. When I create a new instance,
Felix Console assigns it a concrete name, for instance:
org.apache.stanbol.enhancer.engines.entityhublinking.EntityhubLinkingEngine.2449f404-1cce-4655-84ce-ae4235d42009
Looking at fileinstall directory in my stanbol working directory, a new
file with the configuration of this instance appears:
/var/zaizi/workspace/stanbol/launchers/full/target/stanbol/fileinstall/org.apache.stanbol.enhancer.engines.entityhublinking.EntityhubLinkingEngine.org.apache.stanbol.enhancer.engines.entityhublinking.EntityhubLinkingEngine.2449f404-1cce-4655-84ce-ae4235d42009.config
To change manually this file doesn't have any effect too. If you set for
instance "Suggestions" to 50 (which is a parameter that you can actually
see in the felix console), this change doesn't appear in the Felix
Console Form for our instance, which always conserves the last value
that you had set directly in the console. We have restarting the engine,
bundle even restarting Stanbol, but the configuration doesn't change.
Therefore, we thought that Felix Engine should be loading the
configuration from another file in the filesystem. We have found more
files with the same configuration:
config/org/apache/stanbol/enhancer/engines/entityhublinking/EntityhubLinkingEngine/org/apache/stanbol/enhancer/engines/entityhublinking/EntityhubLinkingEngine/2449f404/ee7315a4-3139-4b0d-ad41-fbbf4deb7fe3.config
AND
config/org/apache/stanbol/enhancer/engines/entityhublinking/EntityhubLinkingEngine/2449f404-1cce-4655-84ce-ae4235d42009.config
AND
fileinstall/org.apache.stanbol.enhancer.engines.entityhublinking.EntityhubLinkingEngine.org.apache.stanbol.enhancer.engines.entityhublinking.EntityhubLinkingEngine.2449f404-1cce-4655-84ce-ae4235d42009.config
We have tried changing all these files manually but we didn't success.
The configuration of the engine is always the last configuration you did
directly in the console. Even these files change its values when you
restart Stanbol.
Any idea here??
Thanks again Rupert
El 18/12/12 19:54, Rupert Westenthaler escribió:
Hi
Those properties are not available in the Felix Webconsole. You can
only configure them by using OSGI config files. The
EntityLinkingEngine has simple to much configuration parameters to
include them all in the Form of the Felix Webconsole.
The best is to use default configuration for the dbpedia
EntityhubLinkingEngine [1] as a template and adapt it to your needs.
e.g. by
adding
enhancer.engines.linking.minFoundTokens=1
enhancer.engines.linking.minLabelScore=0.33
enhancer.engines.linking.minTextScore=0.33
enhancer.engines.linking.minMatchScore=0.2
you will also need to increase the value of
"enhancer.engines.linking.suggestions".
Note that you do NOT need to use the datatypes (e.g. {key}=I"1" for
Integer). The Engine is implemented in a way that is also supports
string values as long as it can parse the expected numeric values from
the provided values.
The file must follow the name
"org.apache.stanbol.enhancer.engines.entityhublinking.EntityhubLinkingEngine-{instance_name}.config".
You can use the Sling Fileinstaller to activate your configuration
file. Simple create the {stanbl-working-dir}/stanbol/fileinstall
directory and copy the config file into this directory.
best
Rupert
p.s. in my last mail I used outdated keys. Also the documentation on
the Stanbol website noted the wrong keys. I corrected this in the
meantime
[1]
http://svn.apache.org/repos/asf/stanbol/trunk/data/defaultconfig/src/main/resources/config/org.apache.stanbol.enhancer.engines.entityhublinking.EntityhubLinkingEngine-dbpedia.config
On Tue, Dec 18, 2012 at 4:27 PM, Rafa Haro <[email protected]> wrote:
Hi Rupert,
In which revision is it possible to configure such parameters? We are
working with revision 1421282 and I can't see these options in the Engine
Configuration Dialogue.
Regards
El 18/12/12 16:21, Rupert Westenthaler escribió:
Hi Rafa
To use the disambiguation engine you will need to tweak the parameters
for the EntityhubLinkingEngine. The relevant parameters are
* Min Label Match Score
"org.apache.stanbol.enhancer.engines.keywordextraction.minLabelMatchFactor"
* Min Matched Tokens
"org.apache.stanbol.enhancer.engines.keywordextraction.minFoundTokens"
see [1] for the documentation
from the Documentation:
If used in combination with an disambiguation Engine one might want to
consider to suggest Entities where only a single token of multi-token
labels do match. In such cases a configuration like Min Matched
Tokens=1 and Min Label Match Score <= 0.5 (e.g. 0.4) might be
considered. With such scenarios users will also want to considerable
increase the value for Max Suggestions (typically values > 10).
I would suggest that you start of with "minLabelMatchFactor=0.33" and
"minFoundTokens=1". In addition I would set the number of suggestions
to ~20.
best
Rupert
[1]
http://stanbol.apache.org/docs/trunk/components/enhancer/engines/entitylinking#entity-linker-configuration
On Tue, Dec 18, 2012 at 3:46 PM, Rafa Haro <[email protected]> wrote:
Hi all,
I have been trying to use disambiguation-mlt engine with the new
EntityHub
Linking Engine for Spanish. My goal is to link and disambiguate with any
kind of entity within the EntityHub, not only with Named Entities. So, I
have configured a new Enhancement Chain including only language
detection,
OpenNlpSentenceDetectionEngine, OpenNlpTokenizerEngine,
EntityLinkingEngine
and Disambiguation-mlt (installing the bundle version 0.10). After a few
tests, the disambiguation engine is working but is not able to
disambiguate
anything. Removing the disambiguation engine from the Enhancement Chain
we
have find out that only one candidate for each detected entity is given.
Therefore I think that maybe the disambiguation engine is working fine
but
actually doesn't need to disambiguate anything due to only one candidate
is
being passed to it from entityHub linking engine.
What can be happening? Our suggestions parameter is set to 5
Thanks. Regards
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