probability distribution estimation from sparse data

... Figure 3: Frequency distributions of estimated fre- quency values for occurring and non-occurring sets. 170 CONTEXTUAL WORD SIMILARITY AND ESTIMATION FROM SPARSE DATA Ido Dagan AT•T ... 211-234. Lawrence Erlbaum Asso- ciates. F. Jelinek and R. Mercer. 1985. Probability dis- tribution estimation from sparse data. IBM Technical Disclosure Bulletin, 28:2591-2594. Frederick Jelinek. ... ogy in linguistic data. The literature suggests two major approaches for solving the sparse data problem: smoothing and class based methods. Smoothing methods es- timate the probability of unobserved...

Ngày tải lên: 08/03/2014, 07:20

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Ngày tải lên: 21/06/2014, 20:20

Ngày tải lên: 11/08/2014, 17:20

... Rows from One DataTable to Another Problem You have records in a DataTable that you need to copy to another DataTable. Solution Use the ImportRow( ) method of the DataTable to copy DataRow ... schema and data. SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM Orders", ConfigurationSettings.AppSettings["Sql_ConnectString"]); DataTable dt = new DataTable(ORDERS_TABLE); ... of the DataTable using the row index. • Use the Select( ) method of the DataTable. • Use the RowFilter property of a DataView for the DataTable. The sample code creates a source DataTable...

Ngày tải lên: 28/10/2013, 18:15

... method of each DataTable object to copy both the schema and data for each table into the destination DataSet. In the second scenario, only a subset of the data in the source DataSet is copied ... Once the data has been copied, the DataRelation objects are copied by iterating over the collection of DataRelation objects in the source DataSet, and adding them to the destination DataSet. ... destination DataRelation from the parent and child column ordinals in the source DataRelation. This information, together with the name of the source DataRelation is used to create the DataRelation...

Ngày tải lên: 28/10/2013, 18:15

... image from the database. 2. Create a SQL statement to retrieve the required image from the database and retrieve the image using a DataReader. A DataTable or DataSet filled using a DataAdapter ... an Image from a Database in a Web Forms Control Problem You need to display an image from a database column in an ASP.NET control. Solution Fill an ASP.NET Image control from a database field ... } Discussion Rendering an image from a database in a Web Forms Image control is easy to do, but not straightforward. Fortunately,...

Ngày tải lên: 28/10/2013, 18:15

... System .Data; using System .Data. SqlClient; private DataSet ds; private SqlDataAdapter da; private BindingManagerBase bm; // . . . private void DisplayDatabaseImageForm_Load(object ... Create the DataSet. ds = new DataSet( ); // Create the DataAdapter and retrieve the Employees table. String selectCommand = "SELECT EmployeeID, LastName, FirstName FROM Employees"; ... Binding objects) that are bound to the same data source so that they display information from the object within the data source, such as a row in a DataTable. The BindingContext class is used...

Ngày tải lên: 28/10/2013, 18:15

... the Personnel Data link to view the employee details. 10 Module 1: Displaying Data from a Database # ## # Retrieving Data from a Database ! Demonstration: Importing a Database to the ... answers. 4 Module 1: Displaying Data from a Database How a data- driven Web site works In a data- driven Web site, data is retrieved from an underlying database by using scripts, such as ... results from a database by establishing a database connection. Module 1: Displaying Data from a Database 3 Components of a Data- Driven Web Site The architecture of a data- driven...

Ngày tải lên: 11/12/2013, 14:15

... ProductName, UnitPrice " + " ;FROM Products " + "ORDER BY ProductID"; SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter(); mySqlDataAdapter.SelectCommand = mySelectCommand; ... modify, or remove DataRow objects from your DataSet, and then call the Update() method of your DataAdapter, the appropriate stored procedure is run to push your changes to the database. Let's ... your DataAdapter. Using Stored Procedures to Add, Modify, and Remove Rows from the Database You can get a DataAdapter object to call stored procedures to add, modify, and remove rows from...

Ngày tải lên: 14/12/2013, 13:15

... a DataRow from a DataTable. Notice that the ProductID to modify is passed as a parameter: public static void RemoveDataRow( DataTable myDataTable, int productID, SqlDataAdapter mySqlDataAdapter, ... how to add a DataRow to a DataTable. First, the following code creates a DataSet object named myDataSet and populates it by calling mySqlDataAdapter.Fill(): DataSet myDataSet = new DataSet(); ... AddDataRow() method. The output from AddDataRow() and its call to DisplayDataRow() are as follows: In AddDataRow() Calling myDataTable.NewRow() myNewDataRow.RowState = Detached Calling myDataTable.Rows.Add()...

Ngày tải lên: 14/12/2013, 13:15

... ] Recipe 3.6 Combining Data in Tables from Heterogeneous Data Sources Problem You want to create a report that is based on data from tables in more than one data source. Solution Use ... retrieves data from both a SQL Server table and a Microsoft Access table to create a single result set. Specifically, Northwind Order data is retrieved from SQL Server and Northwind Order Details data ... Order Details data is retrieved from Access and joined to the Order information. The C# code is shown in Example 3-6 . Example 3-6. File: CombiningDataFromMultipleDatabasesForm.cs // Namespaces,...

Ngày tải lên: 14/12/2013, 18:16

Ngày tải lên: 17/12/2013, 15:18

... Displaying Data from a Database 1 # ## # Overview ! Introducing Data- Driven Web Sites ! Demonstration: Tour of the Sample Web Site ! Retrieving Data from a Database ! Lab 1.1: Retrieving Data from ... the module. 4 Module 1: Displaying Data from a Database How a data- driven Web site works In a data- driven Web site, data is retrieved from an underlying database by using scripts, such as ... Module 1: Displaying Data from a Database 25 Exercise 2: Retrieving Records from an Existing Database In this exercise, you will retrieve records from the NetworkInc.mdb database. You need...

Ngày tải lên: 21/12/2013, 19:15

... System .Data. SqlClient; class AddModifyAndRemoveDataRowViews { public static void DisplayDataRow( DataRow myDataRow, DataTable myDataTable ) { Console.WriteLine("\nIn DisplayDataRow()"); ... Country " + " ;FROM Customers"; SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter(); mySqlDataAdapter.SelectCommand = mySqlCommand; DataSet myDataSet = new DataSet(); mySqlConnection.Open(); ... underlying DataRow DisplayDataRow(customersDV[0].Row, customersDT); // remove the second DataRowView from customersDV Adding, Modifying, and Removing DataRowView Objects from a DataView...

Ngày tải lên: 24/12/2013, 01:17

... type to the data source type. [ Team LiB ] Recipe 10.15 Creating a Table in the Database from a DataTable Schema Problem You need to create a table in a database from an existing DataTable ... "SELECT * FROM [Orders]"; SqlDataAdapter da = new SqlDataAdapter(sqlText, ConfigurationSettings.AppSettings["Sql_ConnectString"]); DataTable dt = new DataTable("Orders"); ... in the Northwind sample database. The method CreateTableFromSchema( ) in the sample code is called to create a table in the database from this schema. CreateTableFromSchema( ) This method...

Ngày tải lên: 21/01/2014, 11:20

... of their heuristics on our lecture data (3.6%). This is on top of the average 11% RER from language model adaptation on the same data. We also achieve the RER from TBL without the obligatory round of ... rules are manually developed, TBL rules are automatically learned from training data. The training data consist of sample output from the stochastic model, aligned with the correct instances. For ... used the acoustic model distributed with the toolkit, which was trained on 30 hours of data from 283 speak- ers from the WSJ0 and WSJ1 subsets of the 1992 development set of the Wall Street Jour- nal...

Ngày tải lên: 20/02/2014, 07:20

... score VantageScore With Utility Data Without Utility Data Consumers With Only Utility Data FIGURE 5: Distribution of Credit Scores for All Consumers in Sample With and Without Utility Payment Data and for those ... Credit System: e Promise of Non-traditional Data Information Policy Institute, July 2006. 6 Alternative data is derived from all payment history data in the non-traditional credit sector. 7 ... that alterna- tive data appears to be predictive for no credit and new to credit consumers. Whether alternative data is as predictive as traditional data or how predictive the data is relative...

Ngày tải lên: 15/03/2014, 04:20