Architecture :: Search Engine Implementation?
Jul 22, 2010
not sure if I'm posting to the right thread or not.. but here is the questiondoes anyone know how to implement a best pratice on SEO?One of the example is: if the user types "brand new canon camera" then I want the system to find a sequence of string in the database that contains "new", "cannon", "camera". It is ok with or without the word "brand". However if the user types "HP laptop DV1000" and i want the system to find all HP laptop whether new or not but limited to specific series.
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Oct 11, 2010
I need to create a search engine for my website that searches my entire content and files stored in a database.What is the best way and easy to accomplish this?If can, please provide a few samples or links.
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Sep 14, 2010
how will I able to create an Image Search Engine?
It is about using an Image and search similar images on web.
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Apr 28, 2010
I have implemented the 3-tier architecture project; DAL, BAL, and presentation layer are three layers in it. I am going to implement the following scenario:
Presentation layer calls to a function in the BAL layer which returns 2 string variable, and in turn this function from BAL layer calls to a DAL layer function which also returns 2 string variable. How can I implement the above scenario?
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Jan 19, 2011
I have a database filled with information about a bunch of different articles. I'm trying to add a search mechanisim to the site where you would type in what you are looking for, and it would search through the articles finding the most appropriate article. In my database I have a bunch of different fields that will help find the best article. For example, for each article, there is a title, description, category, a bunch of tags, Number of page views, number of votes, and the sum of all the vote scores. All this informaiton i believe can be used to gather the most relevent article based on the persons search terms. The problem is I don't know what to do with this information. What I would like to do is have a scoring system where the highest score is the first result and the lowest score is the last result. Where the first result is the most relevent.
So for example: The user types in "Korean War" it looks through all the articles, and gives all the articles with "Korean War" in the title + 1, all the tags with "Korean" or "War" + .1, then adds the number of views/1000, and then adds the average vote/4. (I just made that scoring system up on the spot, I would need to do some testing of course). Then it would sort the articles based upon the score it recieved. Is there anyway to do this with a select statement where I can run all of the calculations and then sort them with an "ORDER BY" command? Or would i have to have the server side code do the calculations store them in an array, and then sort them in the array? Or is there a better way of doing this that I might not know of (which is certainly possible).
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Dec 5, 2010
I want to know how can I build a simple search engine which search from specific websites, for example it should search codeplex and msdn only and show the result on my page?
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Feb 27, 2011
I'm fairly new to dependency injection but it seems like a proper DI implementation will be fairly complex.
For example, DI requires a centralized class that manages the configuration and resolves the dependencies at runtime.
DI is also based on the concept of using interfaces. For example, a SpecialLogger should use an ILogger interface.
The centralized DI manager class will need to register types - for example, associate ILogger to SpecialLogger.
SpecialLogger will also need to implement the ILogger interface so SpecialLogger can be used through the DI ILogger interface.
Therefore, it seems like a sln using DI will need multiple projects to support DI. Here is an example for logging:
* MyCompany.MyDivision.Framework.DI.Management - this would have the DI manager where dependency types are registered and resolved at runtime
* MyCompany.MyDivision.Framework.Logging - this would have the implementation of a logging class. The main logging class would need to implement ILogger.
* MyCompany.MyDivision.Framework.DI.Interfaces - this would have the ILogger interface.
Interfaces would need to be stored in a separate class library from the DI manager because both the DI manager and SpecialLogger use the ILogger interface. Since the DI manager associates SpecialLogger to ILogger a circular reference would be encountered without a separate class library to store the ILogger interface.
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Feb 28, 2011
I have been learning C# for the last year or so and trying to incorporate best practices along the way. Between StackOverflow and other web resources, I thought I was on the right track to properly separating my concerns, but now I am having some doubts and want to make sure I am going down the right path before I convert my entire website over to this new architecture.
The current website is old ASP VBscript and has a existing database that is pretty ugly (no foreign keys and such) so at least for the first version in .NET I do not want to use and have to learn any ORM tools at this time.
I have the following items that are in separate namespaces and setup so that the UI layer can only see the DTOs and Business layers, and the Data layer can only be seen from the Business layer. Here is a simple example:
[Code]....
Am I completely off base? Should I also have the same properties in my BLL and not pass back DTOs to my UI? what is wrong and what is right. Keep in mind I am not a expert yet.
I would like to implement interfaces to my architecture, but I am still learning how to do that.
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Mar 18, 2011
I'm conducting a project in which a website should have multi-language support.Now, this website is supposed to serve about 500K+ visitors a day, so it must be super-efficient.
I've created a table of parameters {[ID],[Name]} AND a linkage-table {[objectID],[parameterID],[languageID],[value]}. I think it's the best way to deploy multi-language support while having the privilege to translate different parameters for each language.
As far as I know, server's memory is much faster than a physical HDD. Therefore, I'm planning to store ASP.NET Application State objects for my translation architecture.[URL]
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Feb 15, 2011
I am working on a web application project with a layered architectural style having DAL, BLL, Service Layer and Presentation Layer. It's going to be a Web forms application.
My intent is to try using some of the new features of .Net 3.5 or 4.0.
Currently, I am thinking through different approaches for implementing Authentication in this project.
I have a query regarding the design of the application, particularly Authentication.
In which layer should I have Authentication class? BLL? If I implement the Authentication class in BLL, should I be having an app.config in the same class library project to contain the Database connection string and all.
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Feb 16, 2010
In a project im working on there are many sql tables containing different ID, Name pairs. Those are represented as Enums in classes that need them however that requires casting since tables contain ID only.Also when serialize the Enum contains the ID not value.
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Feb 24, 2011
we are replacing our current search engine with GSA in one of the portal sites. The GSA admin sets up everything we need for (collections, dedicated IP, Indexing). How do i get the results from GSA and format it (results will be in XML) and present to the user like google search results (Title, summary ...) in C#.
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Sep 28, 2010
in my project i would like to save pdf files in database, how to save pdf files in database ? along with that i would like to create create a search page to search for pdf files with PDF file names , how to accoplish these things
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Jul 19, 2010
I am searching for the advantages and disadvantages of the explicit interface implementation
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Feb 10, 2010
I am in the process of redesigning our main product, a knowledge database system for clients to access clinical and specialist advice articles. There is a requirement to add "Social Networking" to this allowing users to connect and post remarks etc...
This is somewhat similar to the Facebook wall scenario - where Articles, Photos, Groups, Products, Events, ActivityFeed can all have comments. I am at a lose as to the database design I would need to implement this. All comments must allow for Moderation/Approval/Spam Reporting etc...
I originally thought a individual table for each Comments entity ex: ArticleComment, ProductComment would work as the comments themselves are not all directly related. Each table having the same exact columns. But this makes life abit awkward as then this creates a separation between something that for all purposes is the same i.e. They are all comments.
The other design idea was to have a single Comment table with an "arc" type relationship to related tables with FK references back to the source.
The other option was to have a single Comment table with an Object Type and XID but this breaks the rules of relation and does not all for referential integrity.
I am at a lose and don't know what to do. I have asked over at SQLCentral.com and all I have done is raised more questions than answers about what to do.
Design 1: This would require exact copies of this table for all the entities.
-- Photo Comments --
CREATE TABLE dbo.PhotoComment
(
CommentID int IDENTITY(1,1) NOT NULL,
PhotoID int NOT NULL,
Body ntext NOT NULL,
ReportedAsSpam bit NOT NULL CONSTRAINT [DF_PhotoComment_ReportedAsSpam] DEFAULT (0),
IsSpam bit NOT NULL CONSTRAINT [DF_PhotoComment_IsSpam] DEFAULT (0),
IsApproved bit NOT NULL CONSTRAINT [DF_PhotoComment_IsApproved] DEFAULT (1),
CreatedDate datetime NOT NULL,
CreatedBy uniqueidentifier NOT NULL,
UpdatedDate datetime NOT NULL,
UpdatedBy uniqueidentifier NOT NULL,
IsDeleted bit NOT NULL CONSTRAINT [DF_PhotoComment_IsDeleted] DEFAULT (0),
CONSTRAINT [PK_PhotoComment] PRIMARY KEY (CommentID),
CONSTRAINT [FK_PhotoComment_PhotoID] FOREIGN KEY (PhotoID) REFERENCES dbo.Photo(PhotoID),
CONSTRAINT [FK_PhotoComment_CreatedBy] FOREIGN KEY (CreatedBy) REFERENCES dbo.aspnet_Users(UserId),
CONSTRAINT [FK_PhotoComment_UpdatedBy] FOREIGN KEY (UpdatedBy) REFERENCES dbo.aspnet_Users(UserId)
)
Design 2: The "Arc" relationship
CREATE TABLE dbo.Comment
(
CommentID int IDENTITY(1,1) NOT NULL,
CommentType char(1) NOT NULL CHECK(CommentType IN ('A','I','E','G','U','P')),
Body ntext NOT NULL,
ReportedAsSpam bit NOT NULL CONSTRAINT [DF_Comment_ReportedAsSpam] DEFAULT (0),
IsSpam bit NOT NULL CONSTRAINT [DF_Comment_IsSpam] DEFAULT (0),
IsApproved bit NOT NULL CONSTRAINT [DF_Comment_IsApproved] DEFAULT (1),
CreatedDate datetime NOT NULL,
CreatedBy uniqueidentifier NOT NULL,
UpdatedDate datetime NOT NULL,
UpdatedBy uniqueidentifier NOT NULL,
IsDeleted bit NOT NULL CONSTRAINT [DF_Comment_IsDeleted] DEFAULT (0),
CONSTRAINT [PK_Comment] PRIMARY KEY (CommentID),
CONSTRAINT [FK_Comment_CreatedBy] FOREIGN KEY (CreatedBy) REFERENCES dbo.aspnet_Users(UserId),
CONSTRAINT [FK_Comment_UpdatedBy] FOREIGN KEY (UpdatedBy) REFERENCES dbo.aspnet_Users(UserId),
CONSTRAINT [UC_Comment_CommentID_CommentType] UNIQUE (CommentID, CommentType)
)
-- Article Comments --
CREATE TABLE dbo.ArticleComment
(
ArticleID int NOT NULL,
CommentID int NOT NULL,
CommentType char(1) CONSTRAINT [DF_ArticleComment_CommentType] DEFAULT 'A', CHECK (CommentType = 'A'),
CONSTRAINT [PK_ArticleComment] PRIMARY KEY CLUSTERED (ArticleID, CommentID),
CONSTRAINT [FK_ArticleComment_ArticleID] FOREIGN KEY (ArticleID) REFERENCES dbo.Article(ArticleID),
CONSTRAINT [FK_ArticleComment_CommentID] FOREIGN KEY (CommentID) REFERENCES dbo.Comment(CommentID),
CONSTRAINT [FK_ArticleComment_CommentID_CommentType] FOREIGN KEY (CommentID, CommentType) REFERENCES dbo.Comment(CommentID, CommentType)
)
Design 3: The one that breaks the rules
CREATE TABLE dbo.Comment
(
CommentID int IDENTITY(1,1) NOT NULL,
ObjectType char(1) NOT NULL, /* A = Article, P = Photo etc... */
XID int NOT NULL, /* Would be the ID of the main entity being queried. */
Body ntext NOT NULL,
ReportedAsSpam bit NOT NULL CONSTRAINT [DF_Comment_ReportedAsSpam] DEFAULT (0),
IsSpam bit NOT NULL CONSTRAINT [DF_Comment_IsSpam] DEFAULT (0),
IsApproved bit NOT NULL CONSTRAINT [DF_Comment_IsApproved] DEFAULT (1),
CreatedDate datetime NOT NULL,
CreatedBy uniqueidentifier NOT NULL,
UpdatedDate datetime NOT NULL,
UpdatedBy uniqueidentifier NOT NULL,
IsDeleted bit NOT NULL CONSTRAINT [DF_Comment_IsDeleted] DEFAULT (0),
CONSTRAINT [PK_Comment] PRIMARY KEY (CommentID),
CONSTRAINT [FK_Comment_CreatedBy] FOREIGN KEY (CreatedBy) REFERENCES dbo.aspnet_Users(UserId),
CONSTRAINT [FK_Comment_UpdatedBy] FOREIGN KEY (UpdatedBy) REFERENCES dbo.aspnet_Users(UserId),
CONSTRAINT [UC_Comment_CommentID_ObjectType_XID] UNIQUE (CommentID, ObjectType, XID)
)
-- Ex: Get all comments for article ID 23.
SELECT * FROM Comment Where ObjectType ='A' and XID = '23'
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Aug 25, 2010
I had gone thru many discussions re: search engine & didn't get the answer to what i intend to design. I intend to put the search textbox & button to the masterpage so that whatever page the user is within the website, he/she can do the search.
I've been following the example (SearchDotNet) in the developerfusion but I just can't figure how I'll make it to redirect to the searchsite from the page the user triggers the search. Do I put the codes in the masterpage?
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Apr 8, 2012
How to implement search engine Within a Partucular website that I supposed to build using asp .net C#.......
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Apr 25, 2010
i am newer to asp.net and i am trying to make a search engine for my site like this one [URL]. i am able to get the SEO friendly URL like this with the keyword and redirected to the Search.aspx.
Now how can i get result like this, i need some assistance to start. i have used contain attribute in LINQ query and get results. but i want to split the search term and i don't know how and then want to search the each word using contain attribute and then want to get results like this guy. you can reffer me anything tutorial or any componenet which is made for asp.net c#.
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Aug 16, 2010
i need the procedure of how to get the GSE API from google and use this API to my code
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Apr 28, 2010
I have a site where users can enter their profile and password-protect certain details. I would like search engines to crawl the 'unprotected' parts of the profile (which varies from user to user). Similar to how if you enter a user's name in facebook, their Facebook profile comes up in the search results. Do I have to do anything special to ensure that the bot doesn't crawl the password-protected sections, but still crawls the (always-public) username?I'm not sure if this is even an issue, but I'd like to update my robots.txt to allow for this.
Also, how do I ensure that the usernames are available to the bots (in a safe manner)? Do I have to create a separate directory with a list of names, or is there a better way?
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Jul 21, 2010
I am working on ASP.NET website. I need to post a Question Paper based on following parameters.
University
Branch
Subject
At Present My URL is in the below mentioned format
//localhost/MYASP/Posted?PostId=**
My URL should be in the below mention format after URL Rewriting
//localhost/MYASP/Posted/University/Branch/Subject/TITLEOFThePost
let me know the process of finding my querystring after url rewriting
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Dec 22, 2010
I would love to create a search field on my master page that returns a page full of results.
It seems simple to me. I need it to search each of my tabels. aka(Customers, Loan Information, Real Estate, Vehicles) I want a repeater or datalist of sometype that hyperlinks to a details view page for each of the tables(easy to do).
I don't know the best way to tackle this. It is a local intranet application so I was thinking about possibly just passing the words or numbers in the textbox to a query string then running a sql command for each of the tables and returning data in a datalist for each table?
Would that work or is there a simple way to do this? It would be nice for it to highlight the match? What should my sql commands look like?
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Jul 15, 2010
Does Bing has an option similar to Google Custom Search or Yahoo where I can use Bing to power the search results on my site?
Couple requirements:
Works with an ASP.NET site (is a .NET project) Host the search box and results on my own website Ability to customize the look and feel of the results to match my site (Full control is ideal but I understand it's not possible with free solutions)
I did a search for Bing custom search and found this: [URL] but it's not exactly what I am looking for.
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Jun 16, 2010
I'm doing custom-rolled view tracking on my website, and I just realize that I totally forgot about search bots hitting the pages. How do I filter out that traffic from my view tracking?
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Jun 14, 2010
this is naresh.i have some query.in google search engine while typeing any letter based on letter some support keyword is getting.
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