KR20030088928A - Custom made information providing system and method thereof - Google Patents

Abstract

PURPOSE: A system for supplying on-demand information in a wireless communication system and a method therefor are provided to process wire news contents, and to transform the contents into wireless contents service systems to create wireless news contents, thereby supplying the wireless news contents for the wire contents. CONSTITUTION: A news information retriever(100) retrieves and collects news contents provided from wire contents providers(120-140). An article information corrector(220) classifies wireless contents providing systems, and performs pre-processing to convert the collected news contents into document types. A display optimizer(210) extracts news contents to be provided through a mobile terminal(50) from the pre-processed news contents, and converts the extracted news contents into document types to store the contents. A contents provider and interface(280) creates an interested information DB by collecting customers' interaction information, extracts the wireless contents, and supplies the wireless contents re-created by reflecting the customers' interest to the mobile terminal(50).

Description

Customized information providing system and method in wireless communication system

The present invention relates to an information retrieval system, and more particularly, to an information retrieval system and method in a wireless communication system that applies knowledge-based weights in a wireless environment to retrieve and provide more accurate information to a customer's needs.

Recently, with the rapid increase in the use of mobile terminals, there is a need for an information retrieval system that enables users to search for information more conveniently and quickly by using their mobile terminals, and to selectively provide information of interest to customers themselves. It is rising.

The technical problem to be achieved by the present invention is to provide a customized information providing system in a wireless communication system for providing a user's mobile terminal by searching the information requested by a user through a wireless communication network more accurately by applying a knowledge-based weight.

Another object of the present invention is to provide a method for providing personalized information performed in the system.

Another object of the present invention is to provide a recording medium recorded with a program code executable by a computer in the method for providing personalized information.

1 is a block diagram schematically showing an embodiment of a system for providing customized information in a wireless communication system according to the present invention.

FIG. 2 is a block diagram according to an embodiment of the news content summarizer 210 in the customized information providing system shown in FIG. 1.

3 is a block diagram of an embodiment of the screen optimizer 240 in the system shown in FIG.

4 is a block diagram according to an embodiment of the customer-interest monitoring unit 290 shown in FIG.

FIG. 5 is a block diagram schematically showing an embodiment of the customer information learning unit 300 shown in FIG. 1.

6 is a flowchart illustrating an embodiment of a method for providing personalized information through a wireless communication network performed in the system shown in FIG. 1.

In order to achieve the above object, the customized information providing system in a wireless communication system according to the present invention drives a real-time information retrieval robot news information search unit for searching and collecting news content provided by a plurality of wired content providers, a plurality of wireless Article information correction unit for classifying the wireless content providing methods according to the wireless Internet communication protocols for each carrier, and pre-processing for converting the news content collected by the news information search unit into a document format according to each of the wireless content providing methods, In consideration of the spatial constraints of the display window of the mobile terminal and the limitation of the transmission speed, the news information to be provided through the mobile terminal is extracted from the news content preprocessed by the article information correction unit, and the extracted news content is provided in each of the wireless content service methods. To convert and save in document format according to Collects the ray optimization unit and customer interaction information to create a customer interest database, and extracts the wireless content converted in the wireless content service method suitable for the mobile terminal of the customer from the wireless content converted and stored in the display optimization unit, It is preferable to provide a content providing and interface unit which provides the wireless content extracted by referring to the information database to reflect the customer's interest to the mobile terminal of the customer.

In order to achieve the above another object, in the wireless communication system according to the present invention, the method for providing personalized information includes (a) searching and collecting news contents provided by a plurality of wired content providers, and analyzing the collected wired news contents in a grammatical manner. Preprocessing removes tag information having characteristics and extracts only text information having meaning as information, and converts the news content preprocessed in steps (b) and (b), respectively, according to a wireless content service scheme according to various wireless protocols. (C) generating and storing the content, collecting interaction information about the content of the customer, and generating and databaseing interest information for each customer by using the collected interaction information, and storing the wireless data in the steps (d) and (c) Wireless content converted from content to wireless content providing method suitable for customer's mobile terminal Extraction, it is preferable that the extracted radio content with reference to the user interest information database includes a step (e) to provide the regeneration according to the customer information of interest.

Hereinafter, with reference to the accompanying drawings, a system and a method for providing personalized information in a wireless communication system according to the present invention will be described as follows.

1 is a block diagram schematically showing an embodiment of a system for providing personalized information in a wireless communication system according to the present invention, which includes a news information search unit 100, a display optimizer 210, and an article information correction unit 220. , A wireless service providing unit 200 including a wireless content database 270 and a content providing and learning unit 280.

Referring to FIG. 1, the news information retrieval unit 100 drives a real-time information retrieval robot driver 110 by referring to a DB 160 that stores a list of content providers. The wired content providers 120 to 140 search and collect wired news content provided in the form of a web document. Here, the web document type has a document type of HTML. The wired news content retrieved through the real-time information retrieval robot driver 110 is provided to the user who uses the news content through the wired terminal through the news information extractor and the wired service provider 150. In addition, the wired news content searched and collected through the real-time information retrieval robot driver 110 is provided to the wireless service provider 200.

The article information correction unit 220 of the wireless service provider 200 stores and manages wireless content providing schemes according to wireless Internet communication protocols of a plurality of wireless carriers, and the news collected by the news information retrieval unit 100. Preprocessing is performed to convert the document into a document format according to each of the wireless content providing methods storing the content. Preferably, the article information correction unit 220 is configured to include a wireless service mode manager 250 and a radio modifier 260.

The wireless service method manager 250 communicates with a plurality of wireless carriers and receives and stores wireless Internet communication protocol information and a wireless content providing method of each of the plurality of wireless carriers. The stored data is periodically updated and managed. Here, the wireless Internet communication protocol is divided into a WAP (Wireless Application Protocol) and the HTTP-based HTTP protocol. In addition, the wireless content providing method is currently provided in WML (Wireless Markup Lageage) for 011 and 017, 016 and 018 are provided in m-HTML, and 019 is written in HDML (Handheld Device Markup Laguage). Is provided.

The document modifier 260 analyzes news contents collected and provided by the news information retrieval unit 100 to remove tags having grammatical features and to extract keywords and sentences having meanings as information. That is, the news content provided by the news information retrieval unit 100 has an HTML document format, and the document modifier 260 extracts only text having meaning as information by removing tag information having grammatical characteristics of HTML.

Subsequently, the display optimizer 210 may provide the news to be provided through the mobile terminal 50 in the news content preprocessed by the article information correction unit 220 in consideration of the spatial constraints of the screen display window of the mobile terminal and the limitation of the transmission speed. The content is summarized, and the summarized news content is converted into a document format according to each of the wireless content service methods currently used and stored. Preferably, the display optimizer 210 includes a news content summarizer 230 and a screen optimizer 240.

The news content summarizer 230 converts the news content preprocessed by the article information reviser 220 into a document in a predetermined integrated language form that can be converted into any wireless service providing schemes. When the amount of the converted news content exceeds the expression range in consideration of the display limit of the mobile terminal, an important keyword is extracted from the converted news content, and a representative sentence including the important keyword is selected from the news content to generate a news summary. do. Here, the unified language form is XML or SGML, which facilitates reconversion to any format according to each wireless internet communication protocol. The news content summarizer 230 will be described in detail with reference to FIG. 2.

The screen optimizer 240 uses a variety of wireless content service methods, such as WML, m-HTML, HDML, CHTML, Generates wireless content for each wireless content service method by converting each document into SHTML .... The screen optimizer 240 stores wireless content for each wireless content service method in the wireless content database 270. For example, a document converted according to WML may be stored as wireless converting content 1 270a, and a document converted according to m-HTML may be stored as wireless converting content 2 270b. That is, if n wireless content service schemes are currently used, the screen optimizer 240 converts the news summary into n wireless content service schemes and stores them in the wireless content DB 270, respectively. The screen optimizer 240 will be described in detail with reference to FIG. 3.

Subsequently, the content providing and learning unit 280 collects customer interaction information to generate a customer-specific interest information database 330, which is converted by the display optimizer 210 and stored in the wireless content DB 270. The wireless content converted to the wireless content service method suitable for the mobile terminal 50 of the customer is extracted from the wireless content that is different from the wireless content service method. Then, the wireless content extracted with reference to the interest information database 330 is reproduced by reflecting the interest of the customer to the mobile terminal of the customer. Preferably, the content providing and learning unit 280 includes a customer interest monitoring unit 290, a customer information learning unit 300, and a content providing unit 310.

The customer interest monitoring unit 290 collects content-related interaction information of the customer and records the information as monitor information, and extracts key keyword information according to the customer's interest in each content based on the monitor information. That is, the customer interacts with the keyword or item of interest in the content provided through the wired terminal or the mobile terminal of the customer, and as a result, the interaction information for each customer reflects the communication information of the customer. Customer interest monitoring unit 290 will be described in detail with reference to FIG.

The customer information learning unit 300 extracts the key keywords extracted from the customer interest monitoring unit 290 according to the frequency extracted from each document and the important keywords and keyword rules for each customer, based on the extracted important keywords and keyword rules. The main interest information of each customer is generated and stored in the interest database 330. Customer information learning unit 300 will be described in detail with reference to FIG.

The content provider 310 extracts the wireless news content converted from the wireless content database 270 into a wireless content providing method suitable for the mobile terminal of the customer. In addition, when the customer interest information exists with reference to the customer interest information DB 330, the wireless content extracted from the wireless content database 270 is reproduced according to the user's interest to provide regenerated news content. For example, if the wireless news content stored in the wireless converting content 1 270a has a WML document format, and the wireless content providing method of the mobile terminal of the customer follows the WML document format, the content providing unit 310 may include databases 270a. News content stored in the wireless converting content 1 270a storing the wireless content according to the WML.

FIG. 2 is a block diagram according to an embodiment of the news content summarizer 210 in the customized information providing system illustrated in FIG. 1, and includes a headline extraction and article normalizer 232, a keyword extractor 234, and a document summary. It comprises a section 236 and a news summary DB (238).

Referring to FIGS. 1 and 2, the headline extraction and article normalizer 232 extracts a headline corresponding to the title of the news content, analyzes news content having a web document format such as HTML, and has a grammar characteristic. The news content is normalized by extracting only the text information from which the tag information is removed.

The keyword extractor 234 selects a keyword appearing several times in the extracted text information as the main keyword. In this case, keywords that appear many times but have no meaning are excluded. This can be done by extracting and comparing words that are common in each wireless content. That is, keywords that appear multiple times in common among wireless contents dealing with different news may be recognized as meaningless keywords and excluded.

The document summary unit 236 generates a summary by extracting sentences to which each keyword belongs based on keywords extracted from the keyword extractor 234 and headlines extracted from the headline extractor and article normalization unit 232. . For example, the document summary unit 236 may calculate the weight of the sentences to which the keyword belongs in the content, select a sentence having the highest weight as the representative sentence, and generate a summary based on the selected representative sentence. Then, the document summary unit 236 converts the generated summary into a document of a predetermined integrated language type that can be converted into any wireless service providing schemes, and then stores the summary summary in the news summary DB 238.

3 is a block diagram according to an embodiment of the screen optimizer 240 in the system shown in FIG. 1, and includes a content correction unit 244 and a wireless service method application unit 236. For convenience of description, the wireless converting content DB 270 is also shown.

1 and 2, the content revising unit 244 may optimize news according to the characteristics of the type of mobile terminal (eg, PDA, WAP phone, etc.) in which the news content summarized in the document summary unit 236 will be displayed. Modify content to enable content services. In other words, the content correction unit 244 can be changed into a PDA version having a relatively large screen area and a WAP phone version currently limited to a maximum of 12 lines.

The wireless service method applying unit 246 may convert the content converted according to the type of the mobile terminal in the content correction unit 244 into the document format (eg, WML, wHTML, HDML, etc.) according to the wireless content service methods, respectively. ) Is stored in the wireless converting content DB 270, respectively.

4 is a block diagram according to an embodiment of the customer-interest monitoring unit 290 shown in FIG. 1, and includes a monitoring unit 292, a monitor information integrating unit 294, and an important keyword extraction unit 296. do.

Referring to FIGS. 1 and 4, the monitoring unit 292 records news content interaction information of customers who receive content from the system illustrated in FIG. 1, and is used as data for the customer information learning unit 300. That is, the content provided through the wired terminal and the content provided through the mobile terminal are provided with a user interaction function, and the customer interacts with keywords or items according to their own interests, so that the customer's interaction information reflects the customer's interest. can do. Meanwhile, the monitor of the customer using the wired terminal may monitor the interaction information of the customer by inserting a predetermined monitor module into the web server providing the web service. In addition, the monitor of the customer using the mobile terminal is achieved by storing the wireless news content information requested by the customer using the terminal.

The monitor information integrating unit 294 collects monitor information stored separately for the wired service user and the wireless service user in the monitoring unit 292 and regenerates it as monitor information integrated into one.

The important keyword extracting unit 296 extracts important keyword information of each content based on the monitor information collected by the monitor information integrating unit 294, and transmits the important keyword information to the customer information learning unit 300. Here, the key keyword is extracted by applying feature selection, which is a text-based key keyword extraction method.

FIG. 5 is a block diagram schematically showing an embodiment of the customer information learning unit 300 shown in FIG. 1, and includes a learning unit 302 and an interest information generation unit 304. 5 shows the personal interest information DB 330 together.

Referring to FIGS. 1 and 5, when a keyword reflecting the interest of the customer is input from the customer interest information monitoring unit 290, the learning unit 302 extracts the frequency of extracting each keyword from the document, and the user's important keyword and Extract rule by keyword.

The interest information generator 304 generates key interest information of each customer based on the user-specific keywords and the keyword-specific rules extracted by the learner 302. The customer's interest information consists of a set of key keywords, and the weight of each keyword is selected based on the rules for each word. For example, the interest information of the customer 1 may be generated and stored in the personal interest information DB 330 as follows.

Customer Name: Customer1

Category: Sports (1), Politics (2), Economy (3)

Main Interest Keywords: 2002 World Cup (1), Hiddink (2), Football (3), Democrats (4), Ventures (5)

Here, the numerical values in parentheses indicate the priority of weights of the main keywords.

The content provider 310 may refer to the interest information of the customer 1 stored in the personal interest information DB 330, and the customer 1 may be most interested in sports, and among them, the content of the 2002 World Cup is high. Accordingly, the content providing unit 310 extracts wireless news content suitable for the mobile terminal of the customer 1 from the wireless content database 270 and reflects the interest of the customer 1. That is, news content reflecting the interest of the customer may be provided by reproducing the wireless content extracted from the wireless content database 270 with the greatest weight on sports, and then reflecting weights in the order of politics and economy.

6 is a flowchart illustrating an embodiment of a method for providing personalized information through a wireless communication network performed in the system shown in FIG. 1. The operation of the system shown in FIG. 1 will now be described with reference to FIGS. 1 and 6.

Referring to FIGS. 1 and 6, first, the article information correction unit 220 of the wireless service provider 200 communicates with a plurality of wireless carriers to register and receive a wireless content service method for each wireless carrier. Article information correction unit 220 periodically updates the wireless content service method for each wireless carrier to manage the information. The news information search unit 100 drives the real-time information robot driver 110 to search and collect news contents provided by the plurality of wired content providers 120 to 140 in real time (operation 400).

After operation 400, the article information correction unit 220 analyzes the wired news contents collected by the news information collection unit 100 to remove tag information having a grammatical characteristic and to extract only text information having meaning as information. Step 410).

After step 410, the display optimizer 210 converts the news content preprocessed in step 410 according to a wireless content service method (eg, WML, HDML, CHTML, SHTML, ...) according to various wireless protocols. The wireless content is generated and stored in the wireless content DB 270 for each wireless content service method (operation 420). In detail, the display optimizer 210 converts the pre-processed news content into a document of a predetermined integrated language type that can be converted into any wireless service providing methods. When the amount of the converted news content exceeds the expression range in consideration of the display limit of the mobile terminal, an important keyword is extracted from the converted news content, and a main representative sentence of the news content is selected to generate a news summary. In addition, the generated news summary is converted into a wireless content service according to the wireless carriers, respectively, to generate wireless content and store it in the wireless content DB 270.

After operation 420, the content providing and learning unit 280 collects interaction information on the content of the customer, generates interest information for each customer using the collected interaction information, and stores the interest information for each customer in the personal interest information DB 330 (second step). Step 430). That is, the content providing and learning unit 280 may provide customized news according to the interest of the customer by using the interaction information reflecting the interest of the customer.

After operation 420, the content providing and learning unit 280 extracts the wireless content converted into a wireless content providing method suitable for the mobile terminal of the customer from the wireless content stored in the wireless content DB 270, and the customer interest information database 330. In step 440, the extracted wireless content is regenerated and provided according to the interest information of the customer.

As described above, the system and method for providing personalized information using a wireless communication network according to the present invention are modified by processing the wired news content having a web document form such as HTML and modifying them according to the currently used wireless content service methods. Create news content. Therefore, the mobile terminal using any wireless content service scheme can provide the wireless news contents with the news contents provided as the wired contents, and generate the customer's interest information using the customer's interaction information. By using the interest information of the customer, it is possible to provide customized news information of interest to the mobile terminal of the customer.

The invention can also be embodied as computer readable code on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, which are also implemented in the form of a carrier wave (for example, transmission over the Internet). It also includes. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

The best embodiments have been disclosed in the drawings and specification above. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, according to the customized information providing system and the method through the wireless communication network according to the present invention, by processing the wired news content having a web document form, such as HTML, respectively modified according to the currently used wireless content service schemes To generate wireless news content. Therefore, the mobile terminal using any wireless content service scheme can provide the wireless news contents with the news contents provided as the wired contents, and generate the customer's interest information using the customer's interaction information. By using the interest information of the customer, it is possible to provide customized news information of interest to the mobile terminal of the customer.

Claims (13)

A news information retrieval unit configured to drive a real-time information retrieval robot to retrieve and collect news content provided by a plurality of wired content providers; Classifying wireless content providing methods according to wireless Internet communication protocols of a plurality of wireless carriers, and preprocessing for converting news content collected by the news information retrieval unit into a document format according to each of the wireless content providing methods. Article information correction; In consideration of the spatial constraints of the screen display window of the mobile terminal and the limitation of the transmission speed, the news content to be provided through the mobile terminal is extracted from the news content preprocessed by the article information correction unit, and the extracted news content is extracted from the wireless content service method. A display optimizer for converting and storing a document format according to each of the two; And Collects customer interaction information to generate a customer interest database, extracts the wireless content converted in the wireless content service method suitable for the mobile terminal of the customer from the wireless content converted and stored by the display optimizer, and the interest database And a content providing and interface unit for providing the extracted wireless content to the mobile terminal of the customer by reproducing the extracted wireless content by reflecting the interest of the customer. The method of claim 1, wherein the article information correction unit A wireless service method manager configured to communicate with the plurality of wireless carriers to receive and store wireless Internet communication protocol information and a wireless content providing method of each of the plurality of wireless carriers, or to change or delete the contents thereof; And And a document corrector for analyzing a news content collected by the news information searcher to remove a tag having a grammatical characteristic and extracting a keyword and a sentence having meaning as information. The display apparatus of claim 1, wherein the display optimizer Converting the preprocessed pre-processed news content into a document of a predetermined integrated language form that can be converted into any wireless service providing schemes, and if the converted news content exceeds the expression range in consideration of the display limitation of the mobile terminal; A news content summarizer for extracting an important keyword from the converted news content and selecting a main representative sentence of the news content to generate a news summary; A screen optimizer for converting the news summaries into document types according to various wireless content service methods of the wireless carriers to generate wireless content for each wireless content service method; And And a wireless content database for storing wireless content for each wireless content service method. The method of claim 3, wherein the news content summarizer Headline extraction and article normalization unit for extracting the headline corresponding to the title of the news content, and analyzing the news content having a web document format and extracting only text information from which tag information having a grammar characteristic is removed to normalize news content. ; A keyword extracting unit which selects a keyword appearing several times in the extracted text information as a main keyword; And Based on the keywords extracted by the keyword extraction unit extracts sentences belonging to each keyword to generate a summary sentence and includes a document summary unit for converting the generated summary sentence into a document of a predetermined integrated language form that can be converted into any wireless service providing methods Personalized information providing system through a wireless communication network, characterized in that. The method of claim 4, wherein the sentence summary unit calculates the weight of the sentences to which the keyword belongs in the content, selects the sentence having the highest weight as the representative sentence, and generates the summary sentence based on the selected representative sentence. Personalized information providing system through a wireless communication network characterized in that. The system of claim 3, wherein the unified language form is XML or SGML. 7. The method of claim 1, wherein the content providing unit and the interface unit A customer interest monitoring unit collecting content-related interaction information of a news content customer and recording the information as monitor information and extracting key keyword information according to the customer's interest in each content based on the monitor information; A customer information learning unit for extracting key keywords and keyword rules for each customer according to the frequency of the extracted key keywords from each document, and generating key interest information of each customer based on the extracted key keywords and keyword rules; A customer interest information database storing main interest information of the customer; And Extract the wireless news content converted into a wireless content providing method suitable for a mobile terminal of the customer from the wireless content database, and if the customer interest information exists by referring to the customer interest information DB, the extracted wireless content is adapted to the user's interest. Personalized information providing system through a wireless communication network, characterized in that it comprises a content providing unit for providing regenerated news content by regenerating. (a) searching for and collecting news contents provided by a plurality of wired content providers; (b) a preprocessing step of analyzing collected wired news contents to remove tag information having a grammatical characteristic and to extract only text information having meaning as information; (c) generating and storing wireless content by converting the news content pre-processed in step (b) according to a wireless content service scheme according to various wireless protocols; (d) collecting interaction information on the content of the customer, and generating database by generating interest information for each customer using the collected interaction information; And (e) Extracting the wireless content converted from the wireless content stored in the step (c) to a wireless content providing method suitable for the mobile terminal of the customer, and referring to the interest information database, the extracted wireless content according to the customer's interest information And reproducing and providing the personalized information through the wireless communication network. The method of claim 8, wherein step (c) (c1) converting the preprocessed news content into a document in the form of a predetermined integrated language that can be converted into any wireless service providing schemes; (c2) if the amount of the converted news content exceeds the expression range in consideration of the display limitation of the mobile terminal, extracting an important keyword from the converted news content and selecting a main representative sentence of the news content to generate a news summary; ; (c3) a method of providing personalized information through a wireless communication network, comprising: converting the news summaries into wireless content service schemes for each wireless carrier to generate wireless content. 10. The method of claim 9, wherein the unified language form is XML or SGML. The method of claim 9, wherein step (c2) (c21) normalizing the news content by extracting a headline corresponding to the title of the news content, analyzing the news content having a web document format, and extracting only text information from which tag information having a grammar characteristic is removed; (c22) selecting a keyword appearing several times in the extracted text information as a main keyword; (c23) extracting sentences to which each keyword belongs based on the keywords extracted in the step (c22), calculating a weight of the sentences in the contents, and selecting a sentence having the highest weight as the representative sentence; And (c24) a method of providing personalized information through a wireless communication network, comprising the step of generating a summary sentence based on the representative sentence selected in (c23). The method of claim 8, wherein (d) and (e) (d1) recording content-related interaction information of a customer using content as monitor information, and extracting key keyword information of each content based on the monitor information; (d2) The key keywords extracted in the step (d1) are extracted for each user's important keywords and keyword rules according to the frequency extracted from each document, and the main interest information of each customer is based on the extracted important keywords and keyword rules. Generating; (d3) extracting wireless news content converted from a wireless content stored in step (c) into a wireless content providing method suitable for a mobile terminal of a customer; And (d4) if the customer interest information exists with reference to the customer interest information DB, regenerating the extracted wireless content according to the user's interest, and providing the regenerated news content. How to Provide Information. A recording medium recorded with a program code executable by a computer on a method for providing personalized information through a wireless communication network according to claim 8 to 12.