標題: Titlebook: Research Issues in Structured and Semistructured Database Programming; 7th International Wo Richard Connor,Alberto Mendelzon Conference pro [打印本頁] 作者: 法官所用 時間: 2025-3-21 18:31
書目名稱Research Issues in Structured and Semistructured Database Programming影響因子(影響力)
書目名稱Research Issues in Structured and Semistructured Database Programming影響因子(影響力)學科排名
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書目名稱Research Issues in Structured and Semistructured Database Programming網(wǎng)絡公開度學科排名
書目名稱Research Issues in Structured and Semistructured Database Programming被引頻次
書目名稱Research Issues in Structured and Semistructured Database Programming被引頻次學科排名
書目名稱Research Issues in Structured and Semistructured Database Programming年度引用
書目名稱Research Issues in Structured and Semistructured Database Programming年度引用學科排名
書目名稱Research Issues in Structured and Semistructured Database Programming讀者反饋
書目名稱Research Issues in Structured and Semistructured Database Programming讀者反饋學科排名
作者: EXALT 時間: 2025-3-22 00:00 作者: 不公開 時間: 2025-3-22 04:23 作者: 粗魯性質(zhì) 時間: 2025-3-22 07:04
Extensions of Attribute Grammars for Structured Document Queries lence problem to be complete for EXPTIME. As an application we show that the Region Algebra expressions can be efficiently translated into extended AGs. This translation drastically improves the known upper bound on the complexity of the emptiness and equivalence test for Re- gion Algebra expressio作者: 滋養(yǎng) 時間: 2025-3-22 10:42 作者: 天空 時間: 2025-3-22 13:32
A Framework for Optimizing Distributed Workflow ExecutionsCFs). In the framework, a workflow schema is first rewritten as a family of CFs that are essentially atomic and execute in parallel. The CFs can be grouped into “clusters”. Several CFs can be combined to form a single CF, which is useful when executing a sub-schema on a limited processor. Local rewr作者: Picks-Disease 時間: 2025-3-22 19:42
Union Types for Semistructured Dataed types are often minor, and we believe that a better strategy than throwing away all type information is to preserve as much of it as possible. We describe a system of untagged . that can accommodate variations in structure while still allowing a degree of static type checking. A novelty of this s作者: Modify 時間: 2025-3-22 21:18
Query Optimization for Semistructured Data Using Path Constraints in a Deterministic Data Model of P., denoted by P., by representing paths as regular expressions. The implication problems for these constraint languages are studied in the context of the .. It is shown that in contrast to the undecidability result of [.], the implication and finite implication problems for P. are decidable in 作者: Expurgate 時間: 2025-3-23 04:01
Expressing topological connectivity of spatial databaseshem interesting objects of study..Previously, spatial Datalog programs have been studied for more restric- tive forms of connectivity (e.g., piece-wise linear connectivity) and these programs were proved to correctly test connectivity on restricted classes of spatial databases (e.g., linear database作者: 負擔 時間: 2025-3-23 08:58
A Representation Independent Language for Planar Spatial Databases with Euclidean Distancen the encoding and thus do not have any natural meaning. In this paper, we propose an alternative approach and develop an algebraic language in which the traditional operators and Euclidean constructions work directly on the data represented by “semi-circular” constraints. By avoiding the encoding s作者: 分開 時間: 2025-3-23 10:08
On the Difference between Navigating Semi-structured Data and Querying Ithe latter’s rigid type constraints. Both OEM and the Penn model essentially correspond to labeled digraphs. Amain theme emerging from the popular query languages such as Lorel [.], UnQL [.], StruQL [.], WebOQL [.], and the Ulixes/Penelope pair of the ADM model [.], is that . is considered an integra作者: Fortify 時間: 2025-3-23 16:56
Ozone: Integrating Structured and Semistructured Datauctured-style navigation of structured data. Ozone also enables ODMG views of OEM data, allowing standard ODMG applications to access semistructured data without losing the benefits of structure. Ozone is implemented on top of the ODMG-compliant O2 database system, and it fully supports our extensio作者: 工作 時間: 2025-3-23 20:39
Peter Buneman,Benjamin Pierce Erwerbst?tigkeit. In ihrer Gesamtheit zeichnen die Beitr?ge ein überraschendes Bild der Bildungs- und Arbeitsmarktsituation junger Erwachsener in den 80er und 90er Jahren. Es zeigen sich vielfach schwier978-3-531-14023-0978-3-322-80459-4作者: 水汽 時間: 2025-3-24 00:46
Peter Buneman,Wenfei Fan,Scott Weinstein Leben erm?glicht..Der Autor.Prof. Dr. Hans Mogel forscht und ber?t seit über zwei Jahrzehnten am Lehrstuhl für Psychologie an der Universit?t Passau zu Geborgenheit..978-3-662-47477-8978-3-662-47478-5作者: 許可 時間: 2025-3-24 04:24
Floris Geerts,Bart Kuijpers Leben erm?glicht..Der Autor.Prof. Dr. Hans Mogel forscht und ber?t seit über zwei Jahrzehnten am Lehrstuhl für Psychologie an der Universit?t Passau zu Geborgenheit..978-3-662-47477-8978-3-662-47478-5作者: DOTE 時間: 2025-3-24 07:18 作者: 新奇 時間: 2025-3-24 14:11 作者: 含水層 時間: 2025-3-24 16:50 作者: BILIO 時間: 2025-3-24 22:30 作者: sundowning 時間: 2025-3-25 02:10
Frank Nevenlichkeit in diesem Spezialgebiet der Zahnheilkunde setzt jedoch andererseits eine umfassende Schulung im technischen und klinischen Anteil der R?ntgenkunde voraus. Wenn Ciescynski vom Zahnarzt fordert, da? er zugleich R?ntgenologe sein mu?, um einmal durch ein volles Vertrautsein mit der R?ntgentech作者: 琺瑯 時間: 2025-3-25 05:46 作者: MINT 時間: 2025-3-25 10:00
Tony Printezis,Malcolm P. Atkinson,Mick Jordanrste bovenpremolaren vertonen een daarmee corresponderende concaviteit aan de mesiale zijde. Zo’n concaviteit heeft de tweede bovenpremolaar niet en geen twee wortels maar slechts één; zijn kroonvorm en –grootte komen verder sterk met die van de eerste premolaar overeen.作者: 去掉 時間: 2025-3-25 14:27
Guozhu Dong,Richard Hull,Bharat Kumar,Jianwen Su,Gang Zhoujvende hoektanden de ruimte voor de wortels van de snijtanden. De aanvankelijk linguale positie van de kronen van de laterale ondersnijtanden verdwijnt. Rotaties, die in de onderkaak nogal eens voorkomen, worden door druk van de tong en lippen geheel of ten dele gecorrigeerd, als daar tenminste ruim作者: Radiation 時間: 2025-3-25 17:41 作者: muscle-fibers 時間: 2025-3-25 23:03
978-3-540-41481-0Springer-Verlag Berlin Heidelberg 2000作者: Pandemic 時間: 2025-3-26 01:50 作者: 割公牛膨脹 時間: 2025-3-26 08:11 作者: Arbitrary 時間: 2025-3-26 10:36
On the Power of Incremental Evaluation in SQL-like Languages order query is in IES(.) and that there are PSPACE-complete queries in IES(.). We further show that every PSPACE query is in IES(.) augmented with a deterministic transitive closure operator. Lastly, we consider ordered databases and provide a complete analysis of a hierarchy on IES(.) defined with respect to arity-bounded auxiliary relations.作者: Abrupt 時間: 2025-3-26 15:54
Richard Connor,Alberto MendelzonIncludes supplementary material: 作者: BILE 時間: 2025-3-26 16:56
Lecture Notes in Computer Sciencehttp://image.papertrans.cn/r/image/827772.jpg作者: Legend 時間: 2025-3-26 23:01 作者: 牛的細微差別 時間: 2025-3-27 04:01 作者: BULLY 時間: 2025-3-27 07:18 作者: headlong 時間: 2025-3-27 09:40 作者: hardheaded 時間: 2025-3-27 14:28 作者: 放大 時間: 2025-3-27 17:46 作者: UTTER 時間: 2025-3-27 21:56
Optimization of Nested SQL Queries by Tableau Equivalencecation and tableau minimization. It unifies and generalizes previously proposed (seemingly unrelated) algorithms, and can incorporate general database dependencies given in the database schema..We apply our method to query blocks with ., . aggregation op- erators. We obtain an algorithm which does n作者: 與野獸博斗者 時間: 2025-3-28 04:05 作者: 抒情短詩 時間: 2025-3-28 06:48 作者: 首創(chuàng)精神 時間: 2025-3-28 11:26 作者: 純樸 時間: 2025-3-28 14:56 作者: adequate-intake 時間: 2025-3-28 19:56 作者: Nonporous 時間: 2025-3-28 23:51
Defining and Handling Transient Fields in PJamamechanism. In the context of orthogonal persistence, this is a particularly useful feature, since it allows the developer to easily deal with state that is external to the system. Such state is inherently transient and should not be stored, but instead re-created when necessary. Unfortunately, the J作者: AV-node 時間: 2025-3-29 05:57
A Framework for Optimizing Distributed Workflow Executionss be distributed across multiple processing nodes (i.e., computers). In some cases task management or execution may be at a processing node with limited functionality, and so it is useful to optimize translations of (sub-)workflow schemas into flowcharts, that can be executed in a restricted environ作者: visual-cortex 時間: 2025-3-29 11:18
Querying Semistructured Data Based on Schema Matchingte due to missing schema information. In this paper we present a query language based on schema matching. Intuitively, a query is a pair consisting of what we want and how we want it. We propose that the former can be achieved by matching a (partial) schema and the latter by specifying additional op作者: Fibrin 時間: 2025-3-29 15:29 作者: recede 時間: 2025-3-29 18:59
Query Optimization for Semistructured Data Using Path Constraints in a Deterministic Data Modeln problems associated with many natural path constraints are undecidable [.], [.]. A variant of the graph model, called ., was recently proposed in [.]. In this model, data is represented as a graph with deterministic edge relations, i.e., the edges emanating from any node in the graph have distinct作者: largesse 時間: 2025-3-29 22:00 作者: PRO 時間: 2025-3-30 03:48
A Representation Independent Language for Planar Spatial Databases with Euclidean Distancearge portion of spatial data such as in GIS systems, but also there exist efficient algorithms for the core operations in the query languages. However, an important limitation of the linear constraint data model is that it cannot model constructs such as “Euclidean distance.” A previous attempt to e作者: NIP 時間: 2025-3-30 05:17 作者: BUMP 時間: 2025-3-30 11:41
On the Difference between Navigating Semi-structured Data and Querying Itently less rigidly structured than traditional DBMS, by WWW documents where no hard rules or constraints are imposed and “anything goes,” and by integration of information coming from disparate sources exhibiting considerable differences in the way they structure information. Significant strides hav作者: Sinus-Rhythm 時間: 2025-3-30 13:21 作者: 阻礙 時間: 2025-3-30 19:02
Optimization of Nested SQL Queries by Tableau Equivalenceot infer arithmetical or aggregation constraints, and reduces optimization of such query blocks to the well-studied problem of tableau minimization. We prove a . result for this algorithm: if two max, min blocks can be merged, the algorithm will detect this fact.作者: Anterior 時間: 2025-3-31 00:46 作者: aesthetic 時間: 2025-3-31 01:07 作者: Indecisive 時間: 2025-3-31 06:21
G?sta Grahne,Emmanuel Wallerund Kommerell haben die L?sung der Gebirgsdruckfrage in der klassischen Erddrucktheorie gesucht. Die theoretischen überlegungen beruhen auf der Erfahrung, da? sich das Gebirge bei Nachgeben der Zimmerung in sich selbst verspannt und lediglich ein losgel?ster Gebirgsk?rper von bestimmter Form die Fir作者: A簡潔的 時間: 2025-3-31 10:53 作者: 消耗 時間: 2025-3-31 14:45 作者: Eructation 時間: 2025-3-31 20:01
William J. McIver Jr.,Karim Keddara,Christian Och,Roger King,Clarence A. Ellis,John Todd,Nathan Getrlijvende molaren. In de bovenkaak zijn de snijtanden naar labiaal ge?nclineerd. Naast een centraal diasteem zijn er vaak nog meer diastemen in het bovenfront. Aanvankelijk is er meestal iets ruimte tussen de eerste blijvende molaren en de tweede melkmolaren. Onder zijn de snijtanden minder naar labi作者: nonsensical 時間: 2025-3-31 23:07
Tony Printezis,Malcolm P. Atkinson,Mick Jordananden, valt het eerste melkelement in de zijdelingse delen uit. Dit is meestal een melkhoektand onder. In tegenstelling tot de situatie bij de snijtanden bestaat er in de zijdelingse delen een grote variatie in volgorde waarin de blijvende elementen doorbreken. In het front staat de ruimtelijke verh作者: misanthrope 時間: 2025-4-1 04:21
