標(biāo)題: Titlebook: Database Applications Semantics; Robert Meersman,Leo Mark Book 1997 IFIP International Federation for Information Processing 1997 Keynote. [打印本頁] 作者: sulfonylureas 時(shí)間: 2025-3-21 19:50
書目名稱Database Applications Semantics影響因子(影響力)
作者: Androgen 時(shí)間: 2025-3-21 20:58
Data Semantics on the Information Superhighwayway. We begin by describing a system that treats character string data as genuine text in a natural language, and adds the level of semantic understanding provided by thematic analysis. Extensions of conventional database type systems and query paradigms are needed for handling text and document and作者: 無可非議 時(shí)間: 2025-3-22 01:41
Value-added Mediation in Large-Scale Information Systemseral companies in the same line of business, predicting the weather, and checking on transportation resources. We assign such sharable services to an active middleware layer, interposed between clients and servers. We define domain-specific mediator modules to populate this layer..Such mediating ser作者: entail 時(shí)間: 2025-3-22 05:17
Information Visualization: The Need for a Data Base Approachon. We can no longer ask users to work with low-level graphics tools to create information presentations. Rather, we want users to be able to ask, at a high level, for visualizations which will help with a particular task, or will emphasize a certain trend. In order to automatically create such pres作者: 瑪瑙 時(shí)間: 2025-3-22 09:05
The Context Interchange Network Prototypegration of contextually (i.e., semantically) heterogeneous data. The system uses explicit context knowledge and a context mediator to automatically detect conflicts and resolve them through context conversion. The network also allows for context explication; making it possible for a receiver of data作者: mettlesome 時(shí)間: 2025-3-22 13:47
Extending a Multidatabase Manipulation Language to Resolve Schema and Data Conflictse requirements to preserve their local autonomy. Semantic heterogeneity is concerned with the differences in the meaning and interpretation of similar data objects across the different systems. In loosely coupled database federations, static schema integration may be not feasible and heterogeneity c作者: mettlesome 時(shí)間: 2025-3-22 17:58
A Repository System for Business Rulese database research which have resulted in first commercially available database management systems with active components. To support this rule-based active mechanisms, it is desirable that rules can be taken into account on the conceptual level. Another important reason for focusing on rules is th作者: NAV 時(shí)間: 2025-3-22 23:26 作者: 遺傳學(xué) 時(shí)間: 2025-3-23 01:39
Stepwise Refinement of Complex Object Constraints in Design Views for Concurrent Engineering which complex objects are used to model engineering designs. To guarantee correctness of the behavior for derived classes when extracting a consistent set of objects and associations to form a functionally correct view, an understanding of the relationship between the base complex object and the vi作者: overbearing 時(shí)間: 2025-3-23 07:17 作者: 大酒杯 時(shí)間: 2025-3-23 12:23 作者: Feckless 時(shí)間: 2025-3-23 16:39 作者: Exhilarate 時(shí)間: 2025-3-23 21:03 作者: LATHE 時(shí)間: 2025-3-24 01:00
https://doi.org/10.1007/978-0-387-34913-8Keynote; computer; constraint; database; database system; databases; design; hypermedia; intelligent systems作者: 物質(zhì) 時(shí)間: 2025-3-24 04:26
IFIP International Federation for Information Processing 1997作者: 注射器 時(shí)間: 2025-3-24 09:34 作者: neuron 時(shí)間: 2025-3-24 12:37
The Individual, the Group and Warway. We begin by describing a system that treats character string data as genuine text in a natural language, and adds the level of semantic understanding provided by thematic analysis. Extensions of conventional database type systems and query paradigms are needed for handling text and document and作者: 打火石 時(shí)間: 2025-3-24 18:24
https://doi.org/10.1007/978-1-349-21003-9eral companies in the same line of business, predicting the weather, and checking on transportation resources. We assign such sharable services to an active middleware layer, interposed between clients and servers. We define domain-specific mediator modules to populate this layer..Such mediating ser作者: GULF 時(shí)間: 2025-3-24 19:34 作者: Nucleate 時(shí)間: 2025-3-25 01:53
The Individual, the Group and Wargration of contextually (i.e., semantically) heterogeneous data. The system uses explicit context knowledge and a context mediator to automatically detect conflicts and resolve them through context conversion. The network also allows for context explication; making it possible for a receiver of data作者: coagulation 時(shí)間: 2025-3-25 06:53
https://doi.org/10.1007/978-3-030-47236-8e requirements to preserve their local autonomy. Semantic heterogeneity is concerned with the differences in the meaning and interpretation of similar data objects across the different systems. In loosely coupled database federations, static schema integration may be not feasible and heterogeneity c作者: transplantation 時(shí)間: 2025-3-25 11:06
Files as Prototypical Master Narrativese database research which have resulted in first commercially available database management systems with active components. To support this rule-based active mechanisms, it is desirable that rules can be taken into account on the conceptual level. Another important reason for focusing on rules is th作者: 辮子帶來幫助 時(shí)間: 2025-3-25 13:18
https://doi.org/10.1007/978-3-030-47236-8h 20% error”, the receiver must not interpret the result as “70 feet, exactly”. We examine semantic interoperability problems in a distributed object management environment, i.e., for a system of distributed objects and services rather than for a database. A . is defined, and its required functional作者: dearth 時(shí)間: 2025-3-25 18:18 作者: SNEER 時(shí)間: 2025-3-25 23:20 作者: 冒失 時(shí)間: 2025-3-26 03:46 作者: Anticoagulant 時(shí)間: 2025-3-26 07:55
Jan-Hendrik Kamlage,Jan Warode,Anna Mengede The general problem is to effect the update while also managing the “side-effects” of constraint enforcement and rule execution. In this paper an update calculus is proposed by which updates, constraints and rules are specified and managed within the same formalism. Constraints and production rules作者: concert 時(shí)間: 2025-3-26 10:39
Achim Brunnengr?ber,Maria Rosaria Di Nucci of data are centralised instead of being scattered among application programs. Unfortunately, designing, implementing and evolving applications based on the active database paradigm is still a very difficult task, mostly due to the poor understanding of the semantic issues underlying active rules. 作者: 泰然自若 時(shí)間: 2025-3-26 13:04
IFIP Advances in Information and Communication Technologyhttp://image.papertrans.cn/d/image/263347.jpg作者: 確定 時(shí)間: 2025-3-26 19:19 作者: 沒有希望 時(shí)間: 2025-3-26 22:29 作者: esoteric 時(shí)間: 2025-3-27 02:21
Human Needs and the Modernization of Povertyeorgia Tech and Gio Wiederhold of Stanford, to each put a searchlight on semantics, databases, applications, and recent evolution of the field, from completely different and complementary angles. In order to fit their talks and those of the other DS-6 contributors in a single framework, it is perhap作者: 宏偉 時(shí)間: 2025-3-27 07:29 作者: PAEAN 時(shí)間: 2025-3-27 10:37
https://doi.org/10.1007/978-3-030-47236-8functions, user-defined partial schema integration by means of class attributes, generalized local and interdatabase joins, and automatic completion of local implicit joins. Together, these features permit resolution of many classes of structural schema conflicts that may exist among the member data作者: 鬧劇 時(shí)間: 2025-3-27 16:56
Between Positivism and Relativism constraints, it has been designed with extensibility in mind and forms a solid platform from which to investigate further techniques for improving the handling of a wider range of constraints. The system is currently being used to describe and enforce the semantics of a complex scientific applicati作者: Expostulate 時(shí)間: 2025-3-27 20:33
https://doi.org/10.1007/978-3-642-46765-3aper reviews existing methods for constraint discovery, describes how constraints are stored in the Metadata View Graph at compile-time, and describes how the MVG Framework retrieves and maintains instance-based constraints at run-time. The paper then analyzes how to apply updates to instance-based 作者: 賭博 時(shí)間: 2025-3-27 23:06
Jan-Hendrik Kamlage,Jan Warode,Anna Mengedes exhibiting constraint violations. Thus, a user-specified “update” is transformed, through semantic reformulation techniques, into a sequence of updates which together ensure semantic integrity of the original update as well as its propagated side-effects..This research presents several contributio作者: GROG 時(shí)間: 2025-3-28 02:49
Introduction: An Essay on the Role and Evolution of Data(base) Semanticseorgia Tech and Gio Wiederhold of Stanford, to each put a searchlight on semantics, databases, applications, and recent evolution of the field, from completely different and complementary angles. In order to fit their talks and those of the other DS-6 contributors in a single framework, it is perhap作者: 貧困 時(shí)間: 2025-3-28 07:50
Value-added Mediation in Large-Scale Information Systemsscope of such a responsibility, and, of course, conformance with interface standards that enable interoperation..Applications that benefit from mediation include planning and other decision-making tasks that require information from diverse resources, as databases, reference systems, data obtained f作者: PALMY 時(shí)間: 2025-3-28 14:17
Extending a Multidatabase Manipulation Language to Resolve Schema and Data Conflictsfunctions, user-defined partial schema integration by means of class attributes, generalized local and interdatabase joins, and automatic completion of local implicit joins. Together, these features permit resolution of many classes of structural schema conflicts that may exist among the member data作者: Permanent 時(shí)間: 2025-3-28 17:11 作者: Conduit 時(shí)間: 2025-3-28 19:50 作者: CULP 時(shí)間: 2025-3-29 00:21 作者: surmount 時(shí)間: 2025-3-29 03:45
1868-4238 pporting these new applications via computer networks.End-users and non-computer experts are becoming heavily involved inthe set-up, management and use of database systems and this bookprovides the important database design methodologies andimplementation technology which should be available for the作者: 清醒 時(shí)間: 2025-3-29 09:45 作者: Blood-Clot 時(shí)間: 2025-3-29 13:59
Book 1997hese new applications via computer networks.End-users and non-computer experts are becoming heavily involved inthe set-up, management and use of database systems and this bookprovides the important database design methodologies andimplementation technology which should be available for them as wella作者: 四海為家的人 時(shí)間: 2025-3-29 16:53
The Context Interchange Network Prototypetect conflicts and resolve them through context conversion. The network also allows for context explication; making it possible for a receiver of data to understand the meaning of the information represented by the source data. A financial application is used to illustrate the functionality of the prototype.作者: 終點(diǎn) 時(shí)間: 2025-3-29 20:59 作者: 匍匐前進(jìn) 時(shí)間: 2025-3-30 01:04 作者: 神化怪物 時(shí)間: 2025-3-30 05:06 作者: 轎車 時(shí)間: 2025-3-30 09:59 作者: 牲畜欄 時(shí)間: 2025-3-30 15:31
Between Positivism and Relativismew is essential..This paper analyzes the effect of stepwise refinement of behavior as part of the process of defining views of complex objects. It also studies the effects of stepwise refinement on the validity of complex constraints in complex objects.作者: 間諜活動(dòng) 時(shí)間: 2025-3-30 19:54 作者: floaters 時(shí)間: 2025-3-30 22:45 作者: 存心 時(shí)間: 2025-3-31 03:57
Information Visualization: The Need for a Data Base Approachentations, meta-data about the data will be needed. We give two examples of systems in which meta-data enables automatic generation of visual views: a dialogue-box generation tool for user interfaces and data entry, and a WWW visual navigation tool.作者: Mhc-Molecule 時(shí)間: 2025-3-31 05:02
