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29 July 2008
SOMs UI
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Hi everyone, I just came across this site. Apologies if this is the wrong forum to post this question in.
I'm having a problem with self organising maps. I understand the theory and algorithms but I'm not sure how to go about implementing it in code (C#). I've seen a couple of examples on http://www.ai-junkie.com/ann/som/som1.html and http://davis.wpi.edu/~matt/courses/soms/#Java
but neither are C# (which is the only language I'm familiar with). This isn't a problem algorithmically as that's easy to convert, but I'm having great difficulty on the user interface side. What's the best way of testing my SOM code? I don't know where to start with the interface side. There's no need for code (unless you have C# code) but theory as to what's actually happening in the previous sites and the how I should be rendering the nodes etc..
Thanks to anyone who can shed any light on this. I've been trying to figure it out for weeks, and I just can't get started :(
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29 July 2008
Internal Error: Stream optimisation failed and is switching off
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Does this mean some structure issue?
Cheers,
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27 July 2008
how to deploy models?
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hi,
once we create a model how do we deploy them??
there is no SPSS predictive enterprice solu: purchased.......what are the other ways to deploy the model in the data warehouse??
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24 July 2008
HELP:Where to get CATs(clementine application templates)
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Eveningļ¼
I have a Clementine version without CATs,and I want to try CATs.
So,where can I get CATs?
Thank you!
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22 July 2008
Quick way to remove outliers?
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Hi everyone, I have been using the "Action -> Discard" function included in the Data Audit node, but the problem is that this has to be done individually to each field... isn't there a way to do it automatically? I tried selecting many fields and setting the option but it still changes only one. Looked for help at the manual but nothing...
Clem 11.1 btw...
Thanks
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22 July 2008
How to refer a node in stream script if the node is part of a super node?
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Hi,
I couldn't find related information in help file. If my stream has a supernode S_Node (non terminal), and a filter node Remove_Sum_Filter1 is contained in the supernode, how can I successful run the stream script?
I got a " can not find node" error.If the node is not in supernode it runs smoothly.
Many Thanks,
# the script # a loop to rename fields (shorten field names) # first make a temp variable to hold the field name var tim # start loop, for field each field in the filter node named "Remove_Sum_Filter1" for tim in_fields_at Remove_Sum_Filter1:filternode # if this field ends in "_Sum" then do something if hasendstring(^tim, "_Sum") then # remove the last 4 letters set Remove_Sum_Filter1:filternode.new_name.^tim = allbutlast(4, ^tim) else # otherwise do nothing endif # end the loop endfor
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22 July 2008
Calculating model's Gini coefficient in Clementine
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Hi
Does anyone know of a quick way to calculate a model's Gini Index in Clementine (v10) to evaluate the discriminatory power of the generated model?
Many Thanks,
Ronan
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17 July 2008
Data mining survey
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I’m doing a Datamining Clustering survey. So I need some Clustering algorithms. I already find some in RapidMiner, but I need some more. Anyone can help me, with the source code of these algorithms (in JAVA if possible)?
Here a list of some, that I’m thinking to use:
CLARA
CLARANS
PAM
SNOB
BIRCH
SMTIN
STING
I appreciate any help, thanks in advance.
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17 July 2008
How can I read values from output file(*.cou) in a script?
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Hi,
I'm running a loop with script. Iteration frequency and values to be used in a loop is determined by output table.
For example,
####################################################
~~~~~
set TABLE.output_mode=Screen
execute TABLE
var count_c
set count_c=TABLE.output.row_count
for c from 1 to ^count_c
var value_c
set value_c=value TABLE.output at ^c 2
create selectnode at ^c*100 100
set selectnode.custom_name = ^value_c
~~~~~~~
endfor
####################################################
It works very well with Clementine client but the problem is that I have to run this script with Clementine server using batch.
When I run the script with shell file, outputs are not shown on screen of course, but just saved as a file(*.cou) and cannot read output value.
Is there anyway to read values from output files?
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13 July 2008
filler for count the presense of value>0 in multiple fields?
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Hi dear,
If I have multiple fields like:
CustID Items_A_Bought Items_B_Bought ... Items_Z_Bought
John 1 7 0
Jack 0 0 1
Jess 2 2 2
And I want to calculate how many types of items they bought:
John 2 (A and B)
Jack 1 (C)
Jess 3 (A,B, C)
The way I can think of is to use Filler node to fill where @FIELD>0 with 1, then sum_n(@fields_between(Item_A_Bought,Item_Z_Bought). Is there any other way to do this?
Thanks,
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12 July 2008
Nearest-neighbor classification
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Can you implement nearest-neighbor classification in Clementine? Has anyone done it?
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12 July 2008
data mining in C#
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hello....i need your help. i got an assignment about prediction in data mining. and the problem is, i'm new in C# and data mining. i've tried to search an example in sql server site but when i try it into my project it wont worked. an sql exception was made. here is my code
using System;
using Microsoft.AnalysisServices;
using System.Data;
using System.Data.Common;
using System.Data.OleDb;
namespace AMOSampleForDM
{
public Database CreateDatabase(Server srv, string databaseName)
{
Database dbNew = new Database(databaseName, Utils.GetSyntacticallyValidID(databaseName, typeof(Database))) ;
if (srv.Databases.ContainsName(databaseName))
srv.Databases.RemoveAt(srv.Databases.IndexOfName(databaseName));
srv.Databases.Add(dbNew);
dbNew.Update(true);
return dbNew;
}
[STAThread]
static void Main(string[] args)
{
try
{
Server srv = new Server();
srv.Connect("localhost");
Database db = CreateDatabase(srv, "Test");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
and the exception is "make sure that the "sql browser" is running. cannot made a connection because the target machine is actively refused it." i really confused, because i'm make sure that the sql browser and server are running.
could anyone help me with this problem or would you give me another example about data mining in C#???? please i really need your help...
thanks a lot,
angela
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11 July 2008
Nonlinear regression
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Hi
In Clementine, whether nonlinear regression (curve fitting) can be preformed or not. If so what is the procedure to be followed.
Thanks
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10 July 2008
Unknown data value in symbolic field
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Hi Dear All,
I am trying to run a Sequence node over about 20,000,000 rows of transaction format data. The ID field (Customer ID) is a unique string so I had to specify as "typeless" (also what the Type node decides after it read data). Time field and content field are all right and value appears in Type node. However I receive this error:
Unknown data value in symbolic field
Check the type for this field is correctly instantiated?
If I reduce the amount by sampling to say 100,000 rows it worked, possibly because the max set size is not exceeded so recognized it as set.
I have to increase Max Set Size to a crazy figure, set Customer ID as set and <read+> and seems it is working.
Why CARMA node (reading a typyless Transaction ID) can work without this problem?
Many Thanks,
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05 July 2008
Perl source code for document classification , Naive Bayes Classifier
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Text Document Classification Using Naive Bayes Classifier with Perl. Source code is available.
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03 July 2008
Why Clementine 11 sometimes uses my two cores and sometimes it doesn't?
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Hi everyone, I have an AMD X2 4200+ with the optimizer installed, and I have noticed Clementine sometimes uses both cores and sometimes it doesn't. It is quite annoying because when using both the processing speed literally doubles.
A PC / Clementine reboot sometimes fixs this, but why does it happen?
Thank you!
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03 July 2008
Need code for Principal Component Analysis
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Hi there,
Would anyone please help me with the codes for Principal Component Analysis either in C or C++?
Thanks