Association Model Prediction Not Using Itemsets
Dec 31, 2006
I have a market basket model using associations. It generated several dozen itemsets. However when I attempt to run a singleton prediction like this:
select (Predict(Orderproduct3q,INCLUDE_STATISTICS,10)) as [Recommendation]
From
[Case All]
NATURAL PREDICTION JOIN
(SELECT (SELECT '16407' AS [Pname])) AS t1
the resulting predictions don't take the itemsets into account. Instead, the predictions consist of the ranked products in the training set, ordered by frequency. This appears to happen regardless of the precise query specified within the "natural prediction join".
What's going on here and how do I generate a singleton prediction which makes use of the itemsets?
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May 22, 2007
If I use this code with an association model, it still returns itemsets for me - when it should be returning only nodes with rules associated with them (according to sqlserverdatamining.com). If I try adding 'AND $PROBABILITY > .25' to the where clause, it returns 0 results for every query I try. Any clue why this may be happening?
Code Snippet
SELECT FLATTENED
(SELECT * FROM PredictAssociation([Product],20,
INCLUDE_NODE_ID,INCLUDE_STATISTICS)
WHERE $NODEID<>'')
FROM
[ProductRecommend]
PREDICTION JOIN
OPENQUERY([ds],
'SELECT
[PRODUCTCLASSID],[DESCRIPTION]
FROM
[Product_Table]
WHERE
[PRODUCTCLASSID] = ''1234'' AND [DESCRIPTION] = ''DESC''
') AS t
ON
[ProductRecommend].[Product].[PRODUCTCLASSID] = t.[PRODUCTCLASSID] AND
[ProductRecommend].[Product].[DESCRIPTION] = t.[DESCRIPTION]
This query returns more relevant results than those lacking the filtering by $NODEID, however the results should have higher probabilities than .047! Please help! Thanks!
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Jan 20, 2007
What is the algorithm that generates the itemsets in the Association model? I'm looking to possibly use this part of the Association algorithm (i.e. the grouping into itemsets) in a separate plug-in algorithm.
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May 21, 2007
Why do association itemsets have probabilities associated with them when its rules that generate probabilities? Any queries I do against my model are using these itemset probabilities rather than the probabilities that the rules generate. More over, the probabilities generated for these itemsets are far less than the MINIMUM_PROBABILITY tag in the algorithm properties menu.
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May 22, 2006
Hi!
I'm building a mining model wiht MS Association Rules. After processing this model, the result includes some rules(example):
E = Existing, C = Existing -> B = Existing
F = Existing -> E = Existing
C = Existing, B = Existing -> E = Existing
F = Existing -> B = Existing
B = Existing, A = Existing -> C = Existing
F = Existing, B = Existing -> E = Existing
F = Existing, E = Existing -> B = Existing
D = Existing -> A = Existing
C = Existing -> A = Existing
E = Existing, A = Existing -> B = Existing
I want to buid a query that has two or more items on the left of the rules, example: E = Existing, C = Existing -> B = Existing
->I want to buid a query to predict that: when a customer buy 'E' and 'C' then he likely buys 'B'
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Jun 26, 2007
Mining Model Prediction... what for?
Which Data Mining algorithm use Mining Model Prediction?
Every algorithm has to use Mining Model Prediction for a final goal of a Data Mining Project?
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Feb 11, 2008
Is there a way to display the actual predicted value for an output attribute for a particular model. For example, say I am trying to predict if a particular customer is going to take advantage of a promotion (0=no, 1=yes) and I use neural networks. I know that I can use "Predict" to give me the prediction "yes" or "no" for each customer. However, the neural network actually spits out a number as a result. For example, a 0.997 would be interpreted as a "yes" for life insurance promotion. I do not want the probability that the prediction is correct. I want the actual output for the network.
The reason being is that I want to compute an error rate between the predicted value and the acutal value (root mean squared error or some other measure). Is there a way to compute this using the mining model prediction tab design view? I do not want to write the actual query as I teach a course in data mining using SQL Server and my students do not know DMX queries.
Thanks for any help you can provide.
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Nov 20, 2006
I have run into a .. somewhat of a "duh" question. I'm running association rule to run a basket analysis, and I'm trying to get probability of each prediction. I know this is wrong, but how do I go about running PredictProbability on each ProductPurchase prediction?
When I run the below DMX query, I get this error message...
Error (Data mining): the dot expression is not allowed in the context at line 5, column 25. Use sub-SELECT instead.
Thanks in advance...
-Young K
SELECT
t.[AgeGroupName]
, t.[ChildrenStatusName]
, (Predict([Basket Analysis AR].[Training Product], 3)) as [ProductPurchases]
, (PredictProbability([Basket Analysis AR].[Training Product].[ProductName])) as [ProductPurchases]
From
[Basket Analysis AR]
PREDICTION JOIN
OPENQUERY([DM Reports DM],
'SELECT
[AgeGroupName]
, [ChildrenStatusName]
FROM
[dbo].[DM.BasketAnalysis.Contact]
WHERE isTrainingData = 0
') AS t
ON
[Basket Analysis AR].[Age Group Name] = t.[AgeGroupName]
AND [Basket Analysis AR].[Children Status Name] = t.[ChildrenStatusName]
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May 17, 2007
Hi,
I've been playing around with the association mining model in SQL server 2005 and built a market-basket analysis of my data that I'm pretty happy with. The next task for me is figuring out how to run DMX queries against the data that I've just mined, so we may possibly use it in a web based application. This wouldn't necessarily be a difficult problem (and still may not be), but every example I've seen for the Mining Model Prediction Designer uses relational databases and I built my mining model off OLAP. Therefore, my predictable attribute is nested and when relating the mining model structure to the relational database that the cube was built off always gives me an error:
"Errors in the high-level relational engine. The 'CompanyName' column could not be found in the top-level clause of the SHAPE statement."
What I would like to do, and I'm not really even sure how I should structure any of my queries, is feed the model a product and have it return a listing of all the products it predicts. Currently, I've only been able to get the designer mode to process a singleton query, and even that didn't return any useful data. I know that this probably can be done pretty easily so any advice you may be able to offer would be greatly appreciated!!
So you may better understand my question, my association mining structure hierarchy looks as this..
[Model] ProductRecommend
[Case][Key]CustomerList
[Case][Attribute]CompanyName
[NestedTable]Product
[Nested][Key]PRODUCTCLASSID
[Nested][Attribute]PRODUCT
With that in mind, I'm trying to perform a query simliar to this:
SELECT
PredictProbability([ProductRecommend].[Product].[PRODUCTCLASSID]), <---- Throws Error for PredictProbability syntax no matter what I try to get to [PRODUCTCLASSID]
(SELECT [PRODUCT] FROM [ProductRecommend].[Product])
From
[ProductRecommend]
NATURAL PREDICTION JOIN
(SELECT 'test' AS [COMPANYNAME],
(SELECT '1234' AS [PRODUCTCLASSID],
'ProductA' AS [PRODUCT]) AS [Product]) AS t
Thanks again for any help!
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Aug 9, 2007
What would be the right design approach for the following problem?
I have a single table called SelectionFactors, which has the following columns and sample data:
ProjectID
Factor
FactorValue
1000
Countries
USA
1000
Countries
Canada
1000
Countries
France
1000
Languages
English
1000
Languages
French
1000
Company Type
Consulting
1000
Company Type
Software
2000
Countries
India
2000
Countries
China
2000
Countries
USA
2000
Languages
English
2000
Languages
Chinese (Simplified)
2000
Languages
Chinese (Traditional)
2000
Languages
Spanish
2000
Company Type
Retail
2000
Company Type
Dairy Products
The problem is to allow a descriptive analysis of the data to find patterns in the users selections. For instance,
if Languages->English is selected, what are the counts of projects for other Factor->Factor Value combinations?
Countries->USA = 2, Countries->Canada=1, Company Type->Consulting=1 and so on.
Since all the data is in this single table, are both the case and nested tables the same? What are the keys and inputs? I only need a descriptive analysis (no prediction) and ALL possible combinations MUST be part of the results; how should the model be designed?
Thank you,
Anna.
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Dec 12, 2006
I have a question about writing a prediction query against a clustering model that has the same column added more than once.
Per Jamie, I can accomplish some crude weighting by adding a column to my model multiple times. See this post for an explnation... Now that I have that worked out, I was wondering how my DM query would look? If I have Input_A1, Input_A2 , & Input_A3 all being source from the same column in my structure do I have to reference all three when writing my prediction query?
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Aug 2, 2006
Hi,
I have built a time series model to forecast sales value
I have data from jan 2004 to jan 2006 and the sales value is
at a day level in my database. But I am aggregating it to month level in the
DSV of the mining model.
I am required to make only historical predictions using the
above model starting form jan 2004 to jan 2006 for every month.
I have set Historical_Model_Count
and Historical_Model_Gap parameter
values to 24 and 10 respectively, and trying to predict for the past few months
(PredictTImeseries(SalesValue,-1,1))
But its throwing me the following error
Error(Data Mining): A time series
prediction was requested with a start time further in the past than the
internal models of the mining model, Sales Forecast, specified in the
HISTORIC_MODEL_GAP and HISTORIC_MODEL_COUNT parameters can process
In fact it throws the above error irrespective of what the Historical_Model_Count and Historical_Model_Gap parameter values
are
I am not able to figure our why this problem is happening?
What should the parameter values for the above scenario?
It would also be helpful if I can get an explanation on how
these two parameters affect the historical predictions. I kind of understand
that these two parameters are important for historical predictions but don€™t
know why or how.
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Dec 28, 2007
HI
Thanks a lot for your answer
I say my request but I don€™t know why anybody don€™t answer me
I have a project about predicting a value about selling and buying of a good like t-shirts and I use data mining for my project ,so I should use time series algorithm ,that €˜s mean I have previous data about t-shirts for 11 months ago and now I should say for 12th month ,how many t-shirts are sale?
My tables saved on the excel file and it is problem, because how should I use this table for building model?
After building a model and structure and predicting the value of 12th month for this store in the mining model then I use this query in model in bi:
€œSELECT
PredictTimeSeries(amount)
From
[Forecasting]€?
This query showed a column and prediction value.
After all of that now I should show this value in the application so I use c# language for building it, so I use a form in c# then I add a button to form that with clicking on this button, I can connect to my structure and then show process of connecting in the panel, then with clicking on the other button I can use this query
(€œSELECT
PredictTimeSeries(amount)
From
[Forecasting]€?
) and after using I can see prediction value in the textbox, that€˜s mean the value of 12th month show on textbox.
Form has two buttons: one button is for connecting to mining structure and other button is for sending PredictTimeSeries query to structure, one textbox, which is for showing the predicting value for 12th month for selling t-shirts, one panel for viewing the lift chart.
Also you say
You are building an application that programmatically creates mining structure and a model, and then you want to train the model and display some results.
And I don€™t know how can I train my model, I should use a special code for it?
If your answer is say, please explain that and then say that codes are for training.
Please if you can send c# code for Sporadic of stage, please send that, I need to this code; my request is emergency for me.
Thanks a lot
i am very sad because any body don't answer me
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Aug 3, 2006
Hello...
I am new to SSAS and i want to try to build a "Sales" model. I will have some "Usage" data for some timespanns, but I am not quite sure how to tackle this. Is there somewhere a "Howto" for this?
Edit: There are several locations, and for each location a forecast is needed. And the Icing would be If I would be able to tell where my supplies must go 1st to achieve the best sales...
The potential Client wants to use Oracle but I would like to show them that SQL Server is the better tool for this ;)
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Aug 30, 2007
Dear All,
I have a database table which has all the inputs, key and the result. In visual studio, I created a decision tree model which has exactly the same fields as in the table. However the visual studio automatically add space preceding the capital letters. As the field name in the Datamining model and those in the database table are slightly different. I cannot use NATURAL prediction join. Is there anyway to told the visual studio not to add the spaces in the variable names?
Thanks and regards,
Tony Chun Tung Siu
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Nov 29, 2006
I am using BI Dev Studio for SS2005 in a research (as opposed to a production) environment. Often I want to compare the results of multiple models using the same attributes. If I switch to a different model, the Design view completely resets. Is there any way to retain the same field names with different models in the Design view?
My current workaround is to give my models similar names with AR, DT, CL, LOG, NN suffixes and make global changes in the DMX.
I have consulted the following without finding an answer:
http://msdn2.microsoft.com/en-us/library/ms178445.aspx
http://msdn2.microsoft.com/en-us/library/ms175642.aspx
http://msdn2.microsoft.com/en-us/library/ms175678.aspx
http://msdn2.microsoft.com/en-us/library/ms175637.aspx
Thanks for your help,
Sam
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Feb 19, 2008
Hi all,
I have a very simple time series model which processing works fine without any problem. However when I run the following query
SELECT
[TimeSeries].[PriceChange],
[TimeSeries].[Symbol],
PredictTimeSeries(PriceChange, -3, 2)
From
[TimeSeries]
WHERE
[TimeSeries].[Symbol] = 'x'
I get the following error:
TITLE: Microsoft SQL Server 2005 Analysis Services
------------------------------
Error (Data mining): A time series prediction was requested with a start time further in the past than the internal models of the mining model, TimeSeries, specified in the HISTORIC_MODEL_GAP and HISTORIC_MODEL_COUNT parameters can process.
The following is the excerpt of the minding model script related to the two parameters:
<AlgorithmParameters>
<AlgorithmParameter>
<Name>MISSING_VALUE_SUBSTITUTION</Name>
<Value xsi:type="xsdtring">Previous</Value>
</AlgorithmParameter>
<AlgorithmParameter>
<Name>HISTORIC_MODEL_GAP</Name>
<Value xsi:type="xsd:int">1</Value>
</AlgorithmParameter>
<AlgorithmParameter>
<Name>HISTORIC_MODEL_COUNT</Name>
<Value xsi:type="xsd:int">10</Value>
</AlgorithmParameter>
</AlgorithmParameters>
These HISTORIC_MODEL_GAP (1) and HISTORIC_MODEL_COUNT (10) should accommodate PredictTimeSeries(PriceChange, -3, 2). Could anyone shed some light on this?
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Sep 14, 2007
Hi,
I am not getting Mining Accuracy Chart and Min ing Model Prediction
Plz tel me how to do.And how to use the filter input data used to generate the lift chart and
select predictable mining model columns to show in the lift chart
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Feb 22, 2008
Hi
After building a model in BI, I want to view the chart of model in mining model viewer, in the chart tab I can just see one prediction value that means for my model do prediction for some time slice and in prediction steps I can specify how many steps, I want to show this chart
In mining model viewer tab we can see the chart of prediction also decision tree and the chart is for showing all of value prediction, and with choosing prediction steps we can specify that show just one value prediction or two or several values. But sometime I can see just one value in chart and sometime I can see several values in chart,
This difference is for my data or no?
And also for viewing historic prediction I should choice €œshow historic prediction€? and before that I should set
Two parameters: Historic_ model _count and historic _model _count,
But I can€™t see historic prediction (sometime this happens)
Please help me.
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Dec 5, 2005
Running 2005 Beta 3 Refresh. When I first deploy, it works fine. Subsequent deployments yield the following error:
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Oct 19, 2015
I need to develop a language specific dwh, meaning that descriptions of products are available from a SAP system in multiple languages. English is the most important language and that is the standard. But, there are also requirements of countries that wants productdescriptions in their language.Â
Productnr Productdesc Language
1       product    EN
1       produkt    DE
One option is to column the descriptions, but that is not very elegantly. I was thinking of using bridge tables to model this but you have to always select a language in a filter (I think)..
I'm thinking of a technical solution, such that when a user logs on, the language is determined and a view determines whether to pick a certain product table specific for a certain language. But then I don't have the opportunity to interchange the different language specific fields in a report (or in my case PowerPivot).
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Apr 25, 2008
We have the following scenario,
We have our Production server having database on which Few DTS packages execute every night. Most of them have Bulk Insert stored procedures running.
SO we have to set Recovery Model of the database to simple for that period of time, otherwise it will blow up our logs.
Is there any way we can set up log shipping between our production and standby server, but pause it for some time, set recovery model of primary db to simple, execute DTS Bulk Insert Jobs, Bring it Back to Full recovery Model AND finally bring back Log SHipping.
It it possible, if yes how can we achieve this.
If not what could be another DR solution in this scenario.
Thanks Much
Tejinder
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May 17, 2006
Well thanx a lot because i've got the reply. And now i want to ask
about prediction data mining using DTS. Should i make some code to
perform in my vb application? and how to join my table case with the
tree result?
Thank you so much
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Mar 5, 2007
Hi ,
I am a novice Data Mining Programmer.
I am using Time series algorithm for forecasting.
We are Quite concerned about the accuracy of Prediction output.
For Example Our Data is like this
StudId Date Perf
001 01/01/2001 90
001 02/01/2001 89
001 03/01/2001 87
002 01/01/2001 59
002 02/01/2001 70
003 03/01/2001 47
If I write my Prediction Query to predict for 100 th time step.Its giving me out put like
Date Perf
03/01/2015 47.000000115
We are not sure about the accuracy of the values. Is it possible to use trend information as input to my model and make my prediction based on that.
I don€™t know how to do that? Can anyone help?
Thanks,
Karthik.
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May 6, 2007
Hello,
Here's the thing base on AdvantrueWorks: case - orders, nested - products.
I'd like to select-predict models and their identifiers.
So, I added new id column to the relational view.
And then I added the column to the nested table in my structure as predict only.
The problem - all predictions changed dramatically.
For example when I run my query again:
SELECT PREDICT([Association].[Products], 5)
From [Association]
NATURAL PREDICTION JOIN
(SELECT (SELECT 'Touring Tire Tube' AS [Model]) AS [Products]) AS t
I got the new column i added, but the results are far different then before (and incorrect).
Is there a easy way to workaround it?
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Dec 8, 2006
hi,
I am using time series agorithm.I need standard deviation in %. I am using SELECT StudID, PREDICTSTDEV([Perf]) FROM [Stud_Model].This one is giving me the standard deviation like this
StudID stDev
001 2.891298978779
002 2.797288978779.
But I need like this
StudID stDev
001 +50%
002 +51%(From The Previous) like that.
Is it Possible.
Thanks,
Karthik.
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Oct 27, 2007
Hi all,
I have MS Time Seeries model using a database of over a thousand products each of which has hundreds of cases. It amazingly takes only a few minutes to finish processing the model, but when I click Mining Model Viewer to view the models, it takes many hours to show up. Once the window is open, I can choose model for different products almost instantly. Is this normal?
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Aug 10, 2005
hi !!i have a question about the connected and disconnected model to access the Sql server DB.......i know that there is better to choose one rather than the other in some situantions and there is no better model in all cases...... os i hope you can help me to decide what shall i choose...i will use the DB to connect to Web services and read data from the DB and wrtie some data back.......i do not know that to use ..... i hope you advise me and tell me about the rules that will allow me to choose what model to choose .... i appreciate your help!!Thanks !!!
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May 16, 2007
Hello,
Let€™s say (for simplicity), in my site you can do one of two things €“ look at products and buy products.
I want to build an association structure between my products based on those two actions, but(!) when a user looks at two products it creates less important association than when the user actually bought those two products.
So basically, I want to give a different factor base on different actions occurred on my products.
How do I build my structure? How do I query it?
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May 14, 2007
I'm trying to figure out how to build a personalization engine.
If my structure is built with users as case, and products as nested - I€™d like to predict best products per user (rather than associated products), and If possible, ignoring products he already bought.
How do I do it?
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Jul 24, 2007
Hi,
I am working on a table that has following fields transaction_id, product_name,product_brand,product_size,product_quantity.
fyi, If a customer purchases 3 items, all have same transaction_id.
I need to use this table (in BIDS) for finding associations between different products,, but I am unable to do so.
Can anyone help me as to which fields should be used as input so that I can predict the association.
Thanks a lot.
Aashutosh Magdum
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May 14, 2006
When i use the MS association rules ,i don't know how it is worked on the background .I stuy the Fp-Growth algorithm , but there're some questions , I don't kown what's the meaning of transcation database. who can give me one example ? thanks .I know we can store the data in relation database,but in basket Analysis ,how a transaction stroed in relation database?
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May 29, 2007
I am entering to administration of
SS2005 SP1 (Windows 2003) having files mdf, ndf, ldf in
C:Program FilesMicrosoft sql serverMSSQLData
This dir also has two *.cer files.
Apparently no encryption is used
How can I get known what these *.cer files are for?
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