WO2002061615A2 - Rechnersystem - Google Patents
Rechnersystem Download PDFInfo
- Publication number
- WO2002061615A2 WO2002061615A2 PCT/EP2002/000913 EP0200913W WO02061615A2 WO 2002061615 A2 WO2002061615 A2 WO 2002061615A2 EP 0200913 W EP0200913 W EP 0200913W WO 02061615 A2 WO02061615 A2 WO 02061615A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- computer system
- data
- classes
- rules
- attributes
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/28—Databases characterised by their database models, e.g. relational or object models
- G06F16/289—Object oriented databases
Definitions
- the invention relates to a computer system according to the preamble of claim 1 and a method according to the preamble of claim 20.
- Such computer systems can be formed by networked computer units, on which, in particular, database systems are integrated as means for storing data.
- the computer units can also be connected to the Internet, so that the database systems can be queried via the Internet.
- database systems In general, such database systems contain large data sets that can be queried using predefined query commands.
- a particular problem exists in database systems, in which large amounts of data are stored, of defining suitable query commands in order to arrive at the desired search results.
- a computer system comprises database systems in which various types of technical, medical and commercial publications are stored.
- a user of this database system knows the name of an author of a publication. He only knows that this is a technical publication.
- the only searchable term that the user Is available is the name of the author of the publication. This name forms the input variable for the research, which is entered into the computer system via a query unit. Since no further information is available, the user must look through all the query results relating to the researched name in order to arrive at the author of the desired publication on the basis of any additional information ascertained.
- Such an additional manual evaluation is extremely cumbersome and also contains considerable sources of error, so that the search result is associated with considerable inaccuracy.
- the invention is based on the object of designing a computer system of the type mentioned at the outset in such a way that the most comprehensive, simple and flexible access possible to information stored in the computer system is ensured.
- the computer system has means for storing data and a query unit for determining output variables with access to the stored data.
- the data are assigned to predetermined classes which are part of at least one stored class structure forming an object model.
- the classes are assigned attributes that are passed on within a class structure.
- At least one inference unit is provided as the query unit, by means of which rules can be evaluated, by means of which predetermined classes and / or attributes are linked.
- the basic idea of the invention is therefore that the data stored in the computer system are structured within at least one object model, preferably within several object models.
- Such on- Object models forming technologies have class structures which have classes which are structured hierarchically or in associations, the classes preferably being assigned several attributes which are inherited within a class structure.
- information stored in the computer system is not accessed or is not accessed solely by querying data stored there.
- the computer system according to the invention has a predetermined number of rules which are assigned to at least one inference unit.
- the rules can be used to link attributes of at least one class structure and / or classes of at least one class structure and, if appropriate, also stored data.
- the rules represent the logical linking rules that relate the individual aforementioned elements to each other in a predetermined manner.
- An evaluation is carried out in the inference unit by assigning specific values for the attributes, classes and / or data to these rules, as a result of which certain output variables are generated.
- the query and evaluation of information is therefore not restricted to the level of the data stored in the computer system. Rather, the queries are extended to the structural elements of the object models in which the data are structured. With rudimentary and simple inquiries or input values, complex facts and relationships from those stored in the computer system can be used
- a simple example of the computer system according to the invention is a computer unit on which a database system is integrated.
- Query schemes of this type are particularly advantageous because the classes and attributes of class structures can be used to classify data according to certain criteria and properties, which can be easily researched.
- personnel data can have class structures that are divided into different classes according to the hierarchy of employees in a company.
- a class structure of this type can contain in a first level the class “employees”, which is branched into subclasses “technical employees” and “commercial employees”. These subclasses can be branched into further subclasses.
- These classes can be attributes of the gender of the employee or other properties.
- certain classes and attributes can be determined by queries to the employees assigned to these elements without their specific data such as name,
- the address and department name within the company must be specifically requested.
- the query option in the class and / or attribute level above the data level results in a particularly powerful and flexible query system which considerably extends the search options in comparison to conventional database systems.
- Another advantage of the computer system according to the invention is that a user can enter several query terms as input variables into the computer system without having to make a distinction as to whether these query terms are data, classes or
- Rules are in a predetermined relationship to each other. In the simplest In this case, the query terms are linked to a single output variable.
- Classes and / or data of different object models can be obtained.
- Such a system can advantageously be used as an interface unit between two different computer units which are networked with one another.
- An example of this are two database systems that are integrated on computer units from two different companies. Data transfer between the two database systems should be as automatic as possible via a computer network, in particular via the Internet. Such requirements occur particularly in the area of e-commerce. With such systems, for example, orders between manufacturers and those commissioned by them should be
- Figure 1 Structure of a first embodiment of the computer system according to the invention.
- FIG. 2 Object models for structuring the data stored on the computer system in accordance with FIG. 1.
- Figure 3 Structure of a second embodiment of the computer system according to the invention.
- FIG. 4 Object models for structuring the data stored on the computer system according to FIG. 3.
- FIG. 1 schematically shows the basic structure of a first exemplary embodiment of the computer system 1 according to the invention.
- the computer system 1 comprises a plurality of computer units 2 which are connected to one another via a network having computer lines 3.
- One of the computer units 2 forms a central computer on which data is stored.
- the means for storing the data are formed by a database system 4.
- an inference unit 5 is provided as the query unit.
- the computer units 2 have suitable input / output units 6 with terminals which are not shown separately.
- the network can be formed by the Internet.
- the computer units 2 have corresponding internet connections.
- Object models so-called ontologies, are used to structure the data stored in the database system 4.
- An object model has a structure of classes, wherein the structure can be designed as a hierarchical structure. In hierarchical structures, classes of a given level are assigned to exactly one class of a higher level, that is, only single inheritance is permitted. In general, the class structure can also be designed as an acyclic graph, in which multiple inheritance is permitted.
- Figure 2 shows an example of two such hierarchical class structures, each of which forms an object model.
- the first object model contains a class "publications”, which are assigned as subclass “lectures” and "documents”.
- the second object model contains a class "people”, which are assigned as subclasses "self-employed” and “employees”.
- the subclass "employees” are assigned as further subclasses "technical employees" and "commercial employees”.
- Certain attributes are assigned to each class in a hierarchical class structure.
- An attribute that is assigned to a class such as the class “people”, is passed on to the subclasses that are subordinate to this class.
- Such an attribute can be a name, for example.
- This attribute is used within the class structure, in the present example the subordinate classes “self-employed” and “employees” as well as the subclasses “commercial employees” and “technical employees” assigned to this class are inherited. This results in a particularly efficient structuring of the data in the database system 4.
- rules are assigned to the inference unit for carrying out queries in the database system 4. These rules are in the inference unit 5 itself or in an unillustrated one which is assigned to the inference unit 5
- the training and number of the rules are adapted to the patterns of the queries to be carried out and are preferably entered by an authorized person, the so-called knowledge engineer, when the inference unit 5 is installed.
- the object models and the language in which the rules are drawn up can have different forms.
- Object models of the DAML + OIL type and DAML-L as the control language are preferably used.
- Output unit 6 defined query commands entered. Depending on the design of the query command, a sequence of rules is processed in the inference unit 5. Since the rules are a declarative system, the order in which the rules are defined is irrelevant.
- the rules contain logical links between classes and / or attributes and / or data of the database system 4.
- the rules assigned to a query command for generating defined output variables are evaluated.
- the output variables are then expediently output via the input / output unit 6.
- subsets of data can be queried in a simple manner in the database system 4 without having to refer to specific data in the query commands.
- query command can be configured, for example, as follows:
- the name of all technical and scientific employees stored in the database system 4 is displayed to the user as the starting variable.
- relationships between different attributes, classes and / or data can be established with the rules assigned to the individual query commands. Attributes, classes and / or data of different class structures can also be linked to one another using the rules.
- the user in a query command only has to enter the terms according to which the search is carried out, preferably in succession in a sequence.
- the user does not need to make any definitions as to whether these terms are classes, attributes or data.
- the user does not have to intervene in the structure of the rules that are assigned to a specific query command. The assignment of the terms to the rules and the processing of the rules takes place automatically in the inference unit 5.
- An example of such a query can be configured as follows. A user wants to know what knowledge a person known to him by the name of Mustermann has. As a query command, the user enters the two search variables “sample man” and “knowledge” into the input / output unit 6. In the inference unit 5 there is an evaluation of rules that are assigned to this query command. Such a rule can be, for example:
- This rule links the classes "Person” and "Document” of two different class structures.
- the basic parameter of this rule is whether a person has "knowledge" on this topic.
- such links not only query information stored in the database system 4. Rather, such rules are used to establish relationships between elements of the database systems 4 in order to derive new parameters from them if necessary.
- abstract terms such as classes and / or attributes are linked via rules which, as in the present case, provide new parameters as output variables. These can in turn form abstract quantities that can be researched directly by the user. The assignment of concrete values to the abstract parameters of the set of rules then takes place automatically in the inference unit.
- FIG. 3 shows a further exemplary embodiment of a computer system 1.
- This computer system comprises two computer units 2, which are connected via a network
- Computer lines 3 are connected.
- a database system 4 is implemented on each computer unit 2.
- the first computer unit 2 is in a first company A
- the second computer unit 2 is in a company B, each computer unit 2 having an input / output unit 6 for operation.
- the task is to provide an automatic, bidirectional exchange of information, for example to ensure order access or order processing electronically between the two companies.
- a difficulty that usually arises is that the database systems 4, in principle, manage data of the same type, but they are stored under different schemes. This generally leads to an incompatibility of the data records of the two database systems 4, which make automatic information transfer impossible.
- FIG. 4 An example of this is shown in FIG. 4.
- the database system 4 from company A is structured according to an object model 1.
- printers manufactured by company A are assigned to a “printer” class. Different types of printers, such as inkjet printers and laser printers, are distinguished within this class by means of the “type” attribute.
- Company B also produces printers. These are stored in the relevant database system 4 according to an object model 2.
- This object model has a hierarchical class structure in which different types (laser printers, inkjet printers) are assigned to the "printers" class.
- At least one of the database systems 4 is assigned an inference unit 5 which is used as an interface unit for the exchange of information between the database systems 4.
- an inference unit 5 is assigned to each database system.
- the inference unit 5 is not
- the inference unit 5 defines relationships between classes and / or attributes of the two object models, as a result of which the information in the two database systems 4 is clearly assigned. This enables an automatic exchange of information between the two database systems 4.
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- Engineering & Computer Science (AREA)
- Databases & Information Systems (AREA)
- Theoretical Computer Science (AREA)
- Data Mining & Analysis (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02711821A EP1368754A2 (de) | 2001-01-30 | 2002-01-30 | Rechnersystem |
CA002434862A CA2434862A1 (en) | 2001-01-30 | 2002-01-30 | Computer system |
US10/629,587 US20040024742A1 (en) | 2001-01-30 | 2003-07-30 | Computer system |
US10/694,182 US20040088290A1 (en) | 2001-01-30 | 2003-10-28 | Computer system |
US10/967,237 US7290111B2 (en) | 2001-01-30 | 2004-10-19 | Computer system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10103845.3 | 2001-01-30 | ||
DE10103845A DE10103845B4 (de) | 2001-01-30 | 2001-01-30 | Rechnersystem |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/629,587 Continuation-In-Part US20040024742A1 (en) | 2001-01-30 | 2003-07-30 | Computer system |
US10/694,182 Continuation US20040088290A1 (en) | 2001-01-30 | 2003-10-28 | Computer system |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2002061615A2 true WO2002061615A2 (de) | 2002-08-08 |
WO2002061615A3 WO2002061615A3 (de) | 2003-10-02 |
WO2002061615A8 WO2002061615A8 (de) | 2003-12-31 |
Family
ID=7672039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/000913 WO2002061615A2 (de) | 2001-01-30 | 2002-01-30 | Rechnersystem |
Country Status (5)
Country | Link |
---|---|
US (2) | US20040024742A1 (de) |
EP (1) | EP1368754A2 (de) |
CA (1) | CA2434862A1 (de) |
DE (1) | DE10103845B4 (de) |
WO (1) | WO2002061615A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004095313A1 (de) * | 2003-04-19 | 2004-11-04 | Ontoprise Gmbh | Datenverarbeitungssystem für benutzerfreundliche datenbank-recherchen |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7890483B1 (en) * | 2003-09-30 | 2011-02-15 | At&T Intellectual Property I, L.P. | Systems and methods for providing alerts |
DE10356399B4 (de) * | 2003-12-03 | 2006-06-14 | Ontoprise Gmbh | Datenverarbeitungssystem |
DE102009028601A1 (de) | 2009-08-17 | 2011-02-24 | Deutsche Telekom Ag | Elektronisches Recherchensystem |
EP2287751A1 (de) | 2009-08-17 | 2011-02-23 | Deutsche Telekom AG | Recherchensystem und Verfahren zur Informationssuche |
KR20160018434A (ko) * | 2014-08-08 | 2016-02-17 | 존슨 일렉트릭 에스.에이. | 영구 자석 모터용 구동 회로 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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DE69131603T2 (de) * | 1991-12-09 | 2000-04-06 | Digital Equipment Corp | Experten system mit schnellem pattern-matching unter verwendung von äquivalenz-klassen |
US5720009A (en) * | 1993-08-06 | 1998-02-17 | Digital Equipment Corporation | Method of rule execution in an expert system using equivalence classes to group database objects |
DE19914819B4 (de) * | 1999-03-31 | 2005-01-27 | Dirk Vossmann | Verfahren zur Unterstützung von Entwicklungprozessen |
US6311194B1 (en) * | 2000-03-15 | 2001-10-30 | Taalee, Inc. | System and method for creating a semantic web and its applications in browsing, searching, profiling, personalization and advertising |
US6963875B2 (en) * | 2000-03-23 | 2005-11-08 | General Atomics | Persistent archives |
US6985955B2 (en) * | 2001-01-29 | 2006-01-10 | International Business Machines Corporation | System and method for provisioning resources to users based on roles, organizational information, attributes and third-party information or authorizations |
-
2001
- 2001-01-30 DE DE10103845A patent/DE10103845B4/de not_active Expired - Fee Related
-
2002
- 2002-01-30 WO PCT/EP2002/000913 patent/WO2002061615A2/de active Application Filing
- 2002-01-30 CA CA002434862A patent/CA2434862A1/en not_active Abandoned
- 2002-01-30 EP EP02711821A patent/EP1368754A2/de not_active Withdrawn
-
2003
- 2003-07-30 US US10/629,587 patent/US20040024742A1/en not_active Abandoned
- 2003-10-28 US US10/694,182 patent/US20040088290A1/en active Pending
Non-Patent Citations (2)
Title |
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"KBMS-Prototype KRISYS user manual overview" 1992 , KBMS-PROTOTYPE KRISYS USER MANUAL, PAGES 1-94 XP002193794 das ganze Dokument * |
STAAB S ET AL: "Semantic community Web portals" COMPUTER NETWORKS, ELSEVIER SCIENCE PUBLISHERS B.V., AMSTERDAM, NL, Bd. 33, Nr. 1-6, Juni 2000 (2000-06), Seiten 473-491, XP004304786 ISSN: 1389-1286 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004095313A1 (de) * | 2003-04-19 | 2004-11-04 | Ontoprise Gmbh | Datenverarbeitungssystem für benutzerfreundliche datenbank-recherchen |
Also Published As
Publication number | Publication date |
---|---|
WO2002061615A8 (de) | 2003-12-31 |
US20040024742A1 (en) | 2004-02-05 |
DE10103845A1 (de) | 2002-08-08 |
US20040088290A1 (en) | 2004-05-06 |
EP1368754A2 (de) | 2003-12-10 |
CA2434862A1 (en) | 2002-08-08 |
WO2002061615A3 (de) | 2003-10-02 |
DE10103845B4 (de) | 2006-11-16 |
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