which things(I mean columns/elements) we need to consider to implement crime prediction in an efficient way.Now Using PAST DATA , we are giving prediction for, Â Location wise + crimes wise how many (count of Incidents)Â Incidents going to be occur in future.
View 3 RepliesHi again....
I have tree models trained and now how do I perform predictions? I've read that i can use ADO in my vb language so could anyone give me some code lines about prediction using ADO and Vb language? and how to view the prediction in my vb application?
Thank's a lot
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
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?
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.
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
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
Hi, all here,
I am wondering where can I store my mining results in data mining engine? For example, I got mining results like accuracy chart, decision trees, and other formats of results based on different mining algorithms I used for my data mining, so where can I actually store the results for reporting service use later? Is it possible to do that in SQL Server 2005?
Thanks a lot for any help and guidance in advance.
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?
I followed the tutorial posted at [URL] ...
Everything was ok until the last step where I had to process the mining structure which resulted in a warning
"Informational (Data mining): Decision Trees found no splits for model, Tbl Decision Tree Example."
What does this error mean? How do I resolve it? Also, I only see the first level in the Mining Model Viewer, I don't see the levels 2 and 3.
Hi, all experts here,
I would like to know if there is any way to migrate third-party data mining packages with SQL Server 2005 data mining algorithms together then we can have a comparison among all of them to get the best results for training models.
I am looking forward to hearing from you.
Thanks a lot.
With best regards,
Yours sincerely,
Hoping someone will have a solution for this error
Errors in the metadata manager. The data type of the '~CaseDetail ~MG-Fact Voic~6' measure must be the same as its source data type. This is because the aggregate function is not set to count or distinct count.
Is the problem due to the data type of the column used in the mining structure is Long, and the underlying field in the cube has a type of BigInt,or am I barking up the wrong tree?
I'm a beginner with SQL 2012 SSDT & SSMS. I get this error message when I try to deploy my project:Â
"Error 6
Error (Data mining): KEY SEQUENCE columns are not supported at the case level. The 'Customer Key' column of the 'TK448 Ch09 Cube Clustering' mining structure contains content that is not valid.
0 0
"
I am finding it hard to locate the content that is not valid. I've been trying to find a answer for this problem but can't seem to find anything. How can I locate the content that is not valid and change or delete it so that I can deploy this solution?
Having successfully created :
- a data mining structure with about 80 columns.
- a data mining model using Microsoft_Decision_Trees with 2 prediction columns.Â
I thought I would then explore the possibility of have more than 2 prediction columns, in this case 20.
I get an error message and I can't work out :
a) if this is because there's a limit to the maximum number of prediction columns and where that maximum is stated.
b) if something else has become corrupted
c) there's a know bug and if the error message is either meaningful or not.
Either way, I'm unable to complete the data mining wizardÂ
The error message is :Errors in the metadata manager. Either the mining structure with the ID of '[my model Structure]' does not exist in the database with the ID of 'DMAddinsDB', or the user does not have permissions to access the object.
Hi all,
I am using Microsoft_Time_Series and have set HISTORIC_MODEL_GAP to various values (from 1 to 21). I always get this error:
Error (Data mining): The 'HISTORIC_MODEL_GAP' data mining parameter is not valid for the 'My Time Series' model.
In Algorithm Parameters window, this parameters is not there by default, so I have to add it.
Any tip will be greatly appreciated.
Implementing data mining Add-in in an academic setting? We need to handle over 150 new students a semester and have their connection to Analysis Services survive for their four years at the college. We are introducing data mining to every freshman business student as a unit within their Intro to Excel class (close to a month of work to give them a sense of what is possible). Other courses later in their curriculum will expand on that introduction.Â
Once implemented, we would have as many as 900 connections to manage (four years from now). It is possible that multiple sections will be running at the same time, so 40 students may be accessing the data mining tools concurrently. Â
Is there a way to "bulk establish" the access credentials and establish those databases?
With SASS Database i have created Data mining Structure Using Time series algorithm, while processing the SSAS db, Data mining  taking long time to process, so how we can  reduce processing time ???
View 2 Replies View RelatedHi,
I have just run a simple data set through a model to predict a simple true or false value (i.e. binary output)
The Lift Chart/Mining Legend in Analysis Services shows three results €“ Score, Population Correct (%), and Predict Probability (%)
Population Correct I beleive is the percentage of predictions it got right out of the total number of predictions it tried to make. Is this correct?
However, I can€™t work out how the other two are derived in particular the 'SCORE'. To give a live example the scores were as follows:
Model Score Pop Correct Pred Probability
Decision Trees 0.83 76.59% 54.28%
Neural Network 0.75 67.63% 50.05%
Ideal Model 100.00%
Can anyone help with this and give a detailed explanation?
Many thanks,
S Rajput
Hi,
I am trying to model data in analysis services with the Advance Create Mining Model function in the excel addin. I am having trouble creating an association model that works like the Associate button above the Advanced button.
The format of my data is like this
OrderID Product
100 Bike
100 Helmet
100 Shoes
200 Helmet
200 basketball
200 Bat
300 Shoes
300 Socks
The associate button works perfectly since it asks me which column is the transaction id (orderid) and which column I am trying to predict (product). The advanced create mining model asks me to determine what the columns are...
OrderID=key Product=Input+Predict?
When I run the advance create mining model associate, I get a browser that gives me no rules and the support for only one item itemset (each product but no combination of products).
Does anyone know what I have to do to get it to work like the associate button?
I perform data mining on all products and a specific product category.
Do I need to create 2 data source views, one for all products and the other one for the specific product category?
Afterward, I run the Data Mining Wizard 2 times to create 2 mining structures.
I also need to add the same mining model (e.g. Bayes, Cluster) to each of these mining structures.
Is there any simple way to do it?
Thanks.
Joe.
DBCC fileheader ('master')
This shows the sector size on 2005 to be 4096. On 2000 it's 512. I'm a bit confused about all this sector stuff. If I create a new DB it is set to 512, no matter what the allocation unit size for the physical disk is set to. Is there a way to change th sector size of a database? Are there any pros/cons?
I glanced at the 2005 I/O basics article from MS and it was confusing. I'm not sure I follow the sector size between SQL and NT. Is there an article any of you guys know about for this topic that has pictures? lol
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.
Hi everyone,
I have to extract, dayly a list of contacts on a exchange server in a table on our EDW on sql server 2005. Is it possible to get the information directly from a dataflow or i will have to developpe a script task ?
Need help desperatly !!!
Hi, all here,
Thank you very much for your kind attention.
I am wondering if it is possible to use SSIS to sample data set to training set and test set directly to my data mining models without saving them somewhere as occupying too much space? Really need guidance for that.
Thank you very much in advance for any help.
With best regards,
Yours sincerely,
Hi,
I've got a time series of the number of new customer subscriptions, which
is the target attribute to predict. The number of subscriptions depends on
various marketing activities, such as mailings, which are known within
the time series for the past.
If I train an ART (MS Autoregression Tree), it learns the trend pattern
as well as the correlations between the marketing activities and the
target (cross-correlations), right?
What I would like to do is, providing the model with some marketing activity
planning for the future and let the model predict the number of new
subscriptions based on a) the past trend pattern and b) the future activities.
Unfortunately a time series algorithm does not provide some kind of scoring for input data.
What would be the best approach to solve this problem? How about linear regression?
But how to train a regression model with trend patterns?
Thanks for your help!
I am currently using @@Identity to retreive the Identity value for the PK field in a table that I am inserting data into. Essentially, my code looks like this:SqlCommand cmd=new SqlCommand("Insert into table(... ;Select @@Identity from table",conn);string identity=cmd.ExecuteScalar();Testing this myself, it works fine, but I am worried as to how thread safe this is in a real-world environment? (i.e. with multiple users clicking at it). Is there a guaranteed way to make this thread safe- wrap it in a transaction maybe?
View 4 Replies View RelatedHello!
I'm reading about database mirroring in High Safety Mode (Synchronous with no witness). I'm a little confused about what happens if the mirror server disappears.
From Books Online
"If the mirror server instance goes down, the principal server instance is unaffected and runs exposed (that is without mirroring the data)."
http://msdn2.microsoft.com/en-us/library/ms179344.aspx
I was to the course [Upgrading your Database Administration Skills to SQL Server 2005] and the course material does not say the same."Scenario: Synchronous mirroring without a witness server. If the mirror server becomes unavailable, the principal server will take the database offline. This action attempts to maximize the protection of the database and ensure the integrity of its contents"
I've made tests that shows that Books Online is right,
but I would like to know if this is a behaviour that has changed.
I also would like to know if it's possible to run in a more secure mode,
where exposed operations is not allowed.
Best regards
Ola Hallengren
Situation:
We have a backend system which stores our configuration data. In order to pull configuration information from this system our components need to have access to three pieces of data: application name, module name, and the variable to pull.
This same system allows us to log various events. It serves as a central point of configuration, maintenance and monitoring for all of our environments.
Desired Outcome:
We'd like to create a connection manager, log provider, and task "finalizer." We'd like to initialize the variables named above in one location and have all created components pull their required information from that one location.
Assumptions:
* Custom configuration managers are not possible.
* Custom connection managers and logging providers do not have access to the package variables.
* Custom tasks have access to the package variables.
Problems:
Logging Provider: The logging provider does not have access to the package level variables. The only variable that appears to be supported is ConfigString. Currently our component allows configuration of the required data using a "Variable::Variable" format in the ConfigString. We want the logging provider to pull its config data from elsewhere.
Connection Manager: The connection manager does not appear to have access to package level variables. The UI for configuring the connection manager does have access (through the IDtsVariableService). Our current component requires the designer to enter the required data into the component.
We're looking to expand our components to include further integration into our backend. We'd like to resolve the issue of components not having access to the package level variables.
Probed Solutions:
Custom Package Executable: Created as a replacement for DTExec. This fails because we have situations where we may need to run jobs via SQLAgent. Loaded the package, set all the variables and components properly, then executed.
Manual Initialization: Configure each component separately. This fails because we'd like to have a single point of maintenance for these configuration variables.
DTSTask and Static Variables: The heart of this post.
We have created a DTSTask that exists as the first item in the Control Flow and which configures the package level variables and a set of static variables. By "static variables" I refer to the following:
public static class DataStore
{
public static string ApplicationName;
public static string ModuleName;
}
Our components are all capable of accessing these static variables and everything functions wonderfully. (The variables are WORM; the above structure is not what I'm using as I'm aware that SSIS is multi threaded and all appropriate access controls should be used.)
There are concerns over the lifetime of these variables. We depend on the initial task to set these variables; a type constructor is unable to initialize them for us. Static variables are tightly tied to the lifetime of the AppDomain, so I have the following questions:
1. Are AppDomains reused by SSIS? (Is there a chance that a previously configured static variable will be used by a second package?) Research I've done indicates that the SSIS runtime exists in the context of the executing assembly so with DTExec or DTExecUI I'm confident that the AppDomain is not recycled; however, I'm unsure as to the answer in terms of jobs launched by SQLAgent.
2. Are AppDomains ever dynamically created by the SSIS runtime? I know that dynamic creation of AppDomains is explicitly forbidden by the SQL Server 2005 CLR implementation, but I'm not sure about the SSIS runtime. Research has seemed to indicate (but never explicitly state) that this is not done by the current implementation of SSIS.
3. What effect, if any, does "execute out of context" have on static variables? Research has indicated that as long as the package being executed has the appropriate task as the first item that the impact is nil.
Thank you for reading this question, and thank you in advance for any input or comments you may have.
--bms
Hi.. My Finance user create a microsoft Excel OLAP file that connect to our SQL server. And I have created the same ODBC setting for every PCs.
But for a few PCs, I encountered the following error "Client Safety Options do not allow pass through statement to be issued to the data source" When trying to connect the OLAP file to SQL server after entering the same SQL account.
Any idea what is the isssue ??
I am trying to delete tables from data where the ModifiedDates older than 9 years in AdventureWorks2012 database . I get console notified that foreign keys are dropped but the delete statement is throwing errors. I am sure that somewhere the key constraints are not getting altered, but i'm not able to figure it out as i'm a relative beginner to T-SQL. The error and code:
The DELETE statement conflicted with the REFERENCE constraint "FK_SalesOrderHeaderSalesReason_SalesReason_SalesReasonID". The conflict
occurred in database "AdventureWorks2012", table "Sales.SalesOrderHeader
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.SMO") | Out-Null
$option_drop = new-object Microsoft.SqlServer.Management.Smo.ScriptingOptions;
$option_drop.ScriptDrops = $true;
[Code] ....
Hi, all experts here,
I am wondering is there any way to select only a portion of a data set to train the mining model? In this case, I mean we dont need to split the dataset in advance, what I want to do is being able to select any random portion of a selected dataset to train a mining model. Any advices?
I am looking forward to hearing from you and thanks a lot in advance for your advices and help.
With best regards,
Yours sincerely,
hi
I am new at MSSQL 2000 DBA thing. and trying to learn more about analysis service/data warehouse/data mining. so is any expert out there can Recommend some good books or web link article to read? Thanks
Could I ask how to spit the data into training and validation sets when doing data mining?
Thanks