Hi,

I want to restrict the handwriting recognition result to only use digits.

Passing the ink for a "5", sometimes the recognition engine reconizes an
"S", even I set

hintNode.Factoid = IS_DIGITS;
hintNode.CoerceToFactoid = true;

-----------
Here is the code snipplet:

Form invisibleForm = new Form();

InkAnalyzer analyzer = new InkAnalyzer(tempInk,invisibleForm);

AnalysisHintNode hintNode = analyzer.CreateAnalysisHint();

hintNode.Factoid = IS_DIGITS;
hintNode.CoerceToFactoid = true;

RecognizerGuide myGuide = new RecognizerGuide();

Rectangle rect = new Rectangle(new
Point(tempInk.GetBoundingBox().X,tempInk.GetBoundi ngBox().Y),new
Size(tempInk.GetBoundingBox().Width,tempInk.GetBou ndingBox().Height));
myGuide.Columns = request.getOptions().getColumns();
myGuide.Rows = request.getOptions().getRows();
myGuide.WritingBox = rect;
rect.Inflate(10,10);
myGuide.DrawnBox = rect;

hintNode.Guide = myGuide;

analyzer.AddStrokes(tempInk.Strokes);
-----------

Did someone else already have a similar problem?

How can I make the recognition engine to consider always 100% the hints
passed to it?

Best regards,

Michael

Hi Michael, first, let me recommend you download my InkAnalyzer Explorer at
www.einsteintech.net so that you can "play around" with the Ink Analyzer a
bit and understand how the various properties affect it.

In your case, the guide property will not help you here. You actually have
to set up the region that the analysis hint will occupy. So for example, if
you wanted the hint to cover the entire "global" region you could do:

AnalysisHintNode hintNode = analyzer.CreateAnalysisHint();
hintNode.Location.MakeInfinite();

Or if you knew the ink-space rectangle ahead of time you could do:

AnalysisHintNode hintNode = analyzer.CreateAnalysisHint(bounds);

Then once you have the hint node, it's already in the tree. It's best to
give it a name so set its Name property, then any properties that you want
to give it. In your case, this would be a good setting:

// don't bother calculating segmentation alternates
hintNode.TopInkBreaksOnly = true;
// forces everything into one segment
hintNode.WordMode = true;
// tells the recognizer to expect digits
hintNode.Factoid = "(!IS_DIGITS)";
// tells the recognizer to expect ONLY digits
hintNode.CoerceToFactoid = true;

Then if there's already ink in the space where you want the region to apply,
you would have to invalidate the dirty region of the analyzer like so:

analyzer.DirtyRegion.Union(hintNode.Location);

Hope this helps.

--
Josh Einstein (Tablet PC MVP)
Einstein Technologies
Tablet Enhancements for Outlook - Try it free: www.tabletoutlook.com


"Michael Resch" <joboe@gmx.de> wrote in message
news:5ajekpF2pkhdoU1@mid.individual.net...
> Hi,
>
> I want to restrict the handwriting recognition result to only use digits.
>
> Passing the ink for a "5", sometimes the recognition engine reconizes an
> "S", even I set
>
> hintNode.Factoid = IS_DIGITS;
> hintNode.CoerceToFactoid = true;
>
> -----------
> Here is the code snipplet:
>
> Form invisibleForm = new Form();
>
> InkAnalyzer analyzer = new InkAnalyzer(tempInk,invisibleForm);
>
> AnalysisHintNode hintNode = analyzer.CreateAnalysisHint();
>
> hintNode.Factoid = IS_DIGITS;
> hintNode.CoerceToFactoid = true;
>
> RecognizerGuide myGuide = new RecognizerGuide();
>
> Rectangle rect = new Rectangle(new
> Point(tempInk.GetBoundingBox().X,tempInk.GetBoundi ngBox().Y),new
> Size(tempInk.GetBoundingBox().Width,tempInk.GetBou ndingBox().Height));
> myGuide.Columns = request.getOptions().getColumns();
> myGuide.Rows = request.getOptions().getRows();
> myGuide.WritingBox = rect;
> rect.Inflate(10,10);
> myGuide.DrawnBox = rect;
>
> hintNode.Guide = myGuide;
>
> analyzer.AddStrokes(tempInk.Strokes);
> -----------
>
> Did someone else already have a similar problem?
>
> How can I make the recognition engine to consider always 100% the hints
> passed to it?
>
> Best regards,
>
> Michael
>
>

Hi Josh,

thanks a lot for your help. It works fine, now :)

I have 2 more questions: Can you give me a link to a documentation on how to
use regular expressions as Factoid?

Also, I would like to use the returned Confidence value, but the value is
always "UNKOWN".
Here is the code I am using:

Result res = new Result();
ContextNodeCollection nodes = new ContextNodeCollection(new
ContextNode[]{contextNode});

foreach (AnalysisAlternate recoAlternates in analyzer.GetAlternates(nodes))
{
...
res.setConfidence(recoAlternates.InkRecognitionCon fidence.ToString();
...
}

Thank you & Best regards,

Michael

"Josh Einstein" <josh@einsteintech.net> schrieb im Newsbeitrag
news:53893ED1-179F-48FC-A2B9-7E772CF08C06@microsoft.com...
> Hi Michael, first, let me recommend you download my InkAnalyzer Explorer
> at www.einsteintech.net so that you can "play around" with the Ink
> Analyzer a bit and understand how the various properties affect it.
>
> In your case, the guide property will not help you here. You actually have
> to set up the region that the analysis hint will occupy. So for example,
> if you wanted the hint to cover the entire "global" region you could do:
>
> AnalysisHintNode hintNode = analyzer.CreateAnalysisHint();
> hintNode.Location.MakeInfinite();
>
> Or if you knew the ink-space rectangle ahead of time you could do:
>
> AnalysisHintNode hintNode = analyzer.CreateAnalysisHint(bounds);
>
> Then once you have the hint node, it's already in the tree. It's best to
> give it a name so set its Name property, then any properties that you want
> to give it. In your case, this would be a good setting:
>
> // don't bother calculating segmentation alternates
> hintNode.TopInkBreaksOnly = true;
> // forces everything into one segment
> hintNode.WordMode = true;
> // tells the recognizer to expect digits
> hintNode.Factoid = "(!IS_DIGITS)";
> // tells the recognizer to expect ONLY digits
> hintNode.CoerceToFactoid = true;
>
> Then if there's already ink in the space where you want the region to
> apply, you would have to invalidate the dirty region of the analyzer like
> so:
>
> analyzer.DirtyRegion.Union(hintNode.Location);
>
> Hope this helps.
>
> --
> Josh Einstein (Tablet PC MVP)
> Einstein Technologies
> Tablet Enhancements for Outlook - Try it free: www.tabletoutlook.com
>
>
> "Michael Resch" <joboe@gmx.de> wrote in message
> news:5ajekpF2pkhdoU1@mid.individual.net...
>> Hi,
>>
>> I want to restrict the handwriting recognition result to only use digits.
>>
>> Passing the ink for a "5", sometimes the recognition engine reconizes an
>> "S", even I set
>>
>> hintNode.Factoid = IS_DIGITS;
>> hintNode.CoerceToFactoid = true;
>>
>> -----------
>> Here is the code snipplet:
>>
>> Form invisibleForm = new Form();
>>
>> InkAnalyzer analyzer = new InkAnalyzer(tempInk,invisibleForm);
>>
>> AnalysisHintNode hintNode = analyzer.CreateAnalysisHint();
>>
>> hintNode.Factoid = IS_DIGITS;
>> hintNode.CoerceToFactoid = true;
>>
>> RecognizerGuide myGuide = new RecognizerGuide();
>>
>> Rectangle rect = new Rectangle(new
>> Point(tempInk.GetBoundingBox().X,tempInk.GetBoundi ngBox().Y),new
>> Size(tempInk.GetBoundingBox().Width,tempInk.GetBou ndingBox().Height));
>> myGuide.Columns = request.getOptions().getColumns();
>> myGuide.Rows = request.getOptions().getRows();
>> myGuide.WritingBox = rect;
>> rect.Inflate(10,10);
>> myGuide.DrawnBox = rect;
>>
>> hintNode.Guide = myGuide;
>>
>> analyzer.AddStrokes(tempInk.Strokes);
>> -----------
>>
>> Did someone else already have a similar problem?
>>
>> How can I make the recognition engine to consider always 100% the hints
>> passed to it?
>>
>> Best regards,
>>
>> Michael
>>
>>
>

To the best of my knowledge, confidence is only supported with the US
English recognizer so if you are using any other recognizer, it probably
won't work. You can test this with the Ink Analyzer Explorer app. You can
copy/paste the strokes from your app into IA Explorer and then select the
strokes and drop down the language menu. Make sure it's set to "US English"
and then check the node properties to see if the confidence property appears
in the list.

As for using regular expressions in factoids... Not to knock MS here because
I love the ink API's but this piece totally totally sucks. Sucks doesn't
even begin to describe it. It shouldn't even be called "regular expressions"
because it doesn't support quantifiers, ranges, etc. There is a very short
piece of documentation on this at the following URL. It's short because
there's not much to talk about.

http://msdn2.microsoft.com/en-us/library/ms840427.aspx

However, having said that, you can sort of work around it by looping over
the alternates and testing it with your own regex like:

if ( Regex.IsMatch(alternate.RecognizedString) )

Two disadvantages to this approach are: 1) performance will not be as good
presumably and 2) you are limited to the number of alternates returned.

--
Josh Einstein (Tablet PC MVP)
Einstein Technologies
Tablet Enhancements for Outlook - Try it free: www.tabletoutlook.com


"Michael Resch" <joboe@gmx.de> wrote in message
news:5at7ufF2qelk4U1@mid.individual.net...
> Hi Josh,
>
> thanks a lot for your help. It works fine, now :)
>
> I have 2 more questions: Can you give me a link to a documentation on how
> to use regular expressions as Factoid?
>
> Also, I would like to use the returned Confidence value, but the value is
> always "UNKOWN".
> Here is the code I am using:
>
> Result res = new Result();
> ContextNodeCollection nodes = new ContextNodeCollection(new
> ContextNode[]{contextNode});
>
> foreach (AnalysisAlternate recoAlternates in
> analyzer.GetAlternates(nodes))
> {
> ...
> res.setConfidence(recoAlternates.InkRecognitionCon fidence.ToString();
> ...
> }
>
> Thank you & Best regards,
>
> Michael
>
> "Josh Einstein" <josh@einsteintech.net> schrieb im Newsbeitrag
> news:53893ED1-179F-48FC-A2B9-7E772CF08C06@microsoft.com...
>> Hi Michael, first, let me recommend you download my InkAnalyzer Explorer
>> at www.einsteintech.net so that you can "play around" with the Ink
>> Analyzer a bit and understand how the various properties affect it.
>>
>> In your case, the guide property will not help you here. You actually
>> have to set up the region that the analysis hint will occupy. So for
>> example, if you wanted the hint to cover the entire "global" region you
>> could do:
>>
>> AnalysisHintNode hintNode = analyzer.CreateAnalysisHint();
>> hintNode.Location.MakeInfinite();
>>
>> Or if you knew the ink-space rectangle ahead of time you could do:
>>
>> AnalysisHintNode hintNode = analyzer.CreateAnalysisHint(bounds);
>>
>> Then once you have the hint node, it's already in the tree. It's best to
>> give it a name so set its Name property, then any properties that you
>> want to give it. In your case, this would be a good setting:
>>
>> // don't bother calculating segmentation alternates
>> hintNode.TopInkBreaksOnly = true;
>> // forces everything into one segment
>> hintNode.WordMode = true;
>> // tells the recognizer to expect digits
>> hintNode.Factoid = "(!IS_DIGITS)";
>> // tells the recognizer to expect ONLY digits
>> hintNode.CoerceToFactoid = true;
>>
>> Then if there's already ink in the space where you want the region to
>> apply, you would have to invalidate the dirty region of the analyzer like
>> so:
>>
>> analyzer.DirtyRegion.Union(hintNode.Location);
>>
>> Hope this helps.
>>
>> --
>> Josh Einstein (Tablet PC MVP)
>> Einstein Technologies
>> Tablet Enhancements for Outlook - Try it free: www.tabletoutlook.com
>>
>>
>> "Michael Resch" <joboe@gmx.de> wrote in message
>> news:5ajekpF2pkhdoU1@mid.individual.net...
>>> Hi,
>>>
>>> I want to restrict the handwriting recognition result to only use
>>> digits.
>>>
>>> Passing the ink for a "5", sometimes the recognition engine reconizes an
>>> "S", even I set
>>>
>>> hintNode.Factoid = IS_DIGITS;
>>> hintNode.CoerceToFactoid = true;
>>>
>>> -----------
>>> Here is the code snipplet:
>>>
>>> Form invisibleForm = new Form();
>>>
>>> InkAnalyzer analyzer = new InkAnalyzer(tempInk,invisibleForm);
>>>
>>> AnalysisHintNode hintNode = analyzer.CreateAnalysisHint();
>>>
>>> hintNode.Factoid = IS_DIGITS;
>>> hintNode.CoerceToFactoid = true;
>>>
>>> RecognizerGuide myGuide = new RecognizerGuide();
>>>
>>> Rectangle rect = new Rectangle(new
>>> Point(tempInk.GetBoundingBox().X,tempInk.GetBoundi ngBox().Y),new
>>> Size(tempInk.GetBoundingBox().Width,tempInk.GetBou ndingBox().Height));
>>> myGuide.Columns = request.getOptions().getColumns();
>>> myGuide.Rows = request.getOptions().getRows();
>>> myGuide.WritingBox = rect;
>>> rect.Inflate(10,10);
>>> myGuide.DrawnBox = rect;
>>>
>>> hintNode.Guide = myGuide;
>>>
>>> analyzer.AddStrokes(tempInk.Strokes);
>>> -----------
>>>
>>> Did someone else already have a similar problem?
>>>
>>> How can I make the recognition engine to consider always 100% the hints
>>> passed to it?
>>>
>>> Best regards,
>>>
>>> Michael
>>>
>>>
>>
>
>