Posts in category: Storage Retrieval
By Susann Wagenknecht, Nancy J. Nersessian, Hanne Andersen
The e-book examines the rising strategy of utilizing qualitative equipment, reminiscent of interviews and box observations, within the philosophy of technology. Qualitative equipment are becoming more popular between philosophers of technological know-how as progressively more students are resorting to empirical paintings of their learn of clinical practices. even as, the consequences produced via empirical paintings are fairly assorted from these received throughout the type of introspective conceptual research extra common of philosophy. This quantity explores the advantages and demanding situations of an empirical philosophy of technology and addresses questions resembling: What do philosophers achieve from empirical paintings? How can empirical study aid to boost philosophical strategies? How can we combine philosophical frameworks and empirical study? What constraints will we settle for whilst selecting an empirical strategy? What constraints does a reported theoretical concentration impose on empirical paintings? 9 specialists talk about their concepts and empirical ends up in the chapters of this booklet with the purpose of supplying readers with a solution to those questions.
By Avigdor Gal
Schema matching is the duty of delivering correspondences among options describing the that means of information in numerous heterogeneous, disbursed facts assets. Schema matching is without doubt one of the uncomplicated operations required by means of the method of knowledge and schema integration, and therefore has an outstanding impression on its results, even if those contain certain content material supply, view integration, database integration, question rewriting over heterogeneous assets, reproduction info removing, or automated streamlining of workflow actions that contain heterogeneous facts assets. even if schema matching study has been ongoing for over 25 years, extra lately a cognizance has emerged that schema matchers are inherently doubtful. due to the fact 2003, paintings at the uncertainty in schema matching has picked up, besides study on uncertainty in different parts of information administration. This lecture provides numerous points of uncertainty in schema matching inside of a unmarried unified framework. We introduce simple formulations of uncertainty and supply a number of replacement representations of schema matching uncertainty. Then, we hide universal equipment which have been proposed to accommodate uncertainty in schema matching, particularly ensembles, and top-K matchings, and study them during this context. We finish with a collection of real-world functions. desk of Contents: advent / versions of Uncertainty / Modeling doubtful Schema Matching / Schema Matcher Ensembles / Top-K Schema Matchings / purposes / Conclusions and destiny paintings
By Yahiko Kambayashi, Katsumi Tanaka, Masaru Kitsuregawa, Akifumi Makinouchi, Shunsuke Uemura, Yoshifumi Masunaga
Nontraditional Database platforms is the 5th quantity within the complicated details Processing expertise sequence. It brings jointly the result of examine conducted by means of the japanese database examine neighborhood within the box of nontraditional database platforms. The e-book examines nontraditional kinds of functions, info varieties, platforms and environments including high-performance structure to help nontraditional functions, corresponding to net mining, info engineering and item processing.
By Fons Wijnhoven
Details and its administration is significant to trendy society. enterprises – inner most and public, nationwide and overseas – have famous that info is a key source and that its administration is necessary for achievement. current books on info administration concentrate on the skills of pcs to procedure info, the advance of knowledge platforms, and the administration of IT assets. they typically commence with the pc as a key factor. even if details administration recognizes the significance of desktops and knowledge verbal exchange, it starts off from a deeper realizing of the thoughts of data and information, and at the foundation of this realizing, derives the way to use desktops successfully. This textbook presents graduates of any self-discipline with an figuring out of the speculation and perform that underpins details administration, and introduces scholars to the strategies and functions of knowledge administration innovations in numerous organizational contexts. In giving scholars robust philosophical foundations, Fons Wijnhoven's e-book will turn out to be an exceptional primer in details administration.
By Karol Jan Borowiecki, Neil Forbes, Antonella Fresa
The significant objective of this choice of essays is to make an inventive addition to the debates surrounding the cultural background area. within the twenty first century the realm faces epochal adjustments which have an effect on everything of society, together with the arenas during which cultural historical past is made, held, accrued, curated, exhibited, or just exists. The ebook is set those adjustments; concerning the decentring of tradition and cultural historical past clear of institutional constructions in the direction of the person; in regards to the questions which the appearance of electronic applied sciences is challenging that we ask and resolution relating to how we comprehend, acquire and make to be had Europe’s cultural background. Cultural background has huge, immense strength by way of its contribution to enhancing the standard of lifestyles for individuals, realizing the previous, supporting territorial team spirit, riding financial progress, establishing up employment possibilities and aiding wider advancements akin to advancements in schooling and in creative careers. provided that spectrum of attainable merits to society, the variety of reports that keep on with listed here are meant to be a source and stimulus to assist tell not only pros within the quarter yet all people with an curiosity in cultural heritage.
By Bettina Kemme, Ricardo Jiménez Peris, Marta Patiño-Martínez, M. Tamer Özsu
Database replication is generic for fault-tolerance, scalability and function. The failure of 1 database copy doesn't cease the approach from operating as to be had replicas can take over the projects of the failed copy. Scalability could be accomplished through allotting the burden throughout all replicas, and including new replicas should still the weight raise. ultimately, database replication gives you quick neighborhood entry, whether consumers are geographically allotted consumers, if information copies can be found as regards to consumers. regardless of its benefits, replication isn't really an easy strategy to practice, and there are various hurdles to beat. on the vanguard is copy keep an eye on: assuring that information copies stay constant whilst updates ensue. There exist many choices in regard to the place updates can take place and while alterations are propagated to facts copies, how adjustments are utilized, the place the replication software is found, and so forth. a specific problem is to mix copy regulate with transaction administration because it calls for a number of operations to be taken care of as a unmarried logical unit, and it presents atomicity, consistency, isolation and sturdiness around the replicated method. The publication presents a categorization of reproduction regulate mechanisms, provides a number of reproduction and concurrency keep watch over mechanisms intimately, and discusses the various matters that come up while such suggestions have to be carried out inside or on best of relational database platforms. desk of Contents: review / 1-Copy-Equivalence and Consistency / uncomplicated Protocols / Replication structure / The Scalability of Replication / keen Replication and 1-Copy-Serializability / 1-Copy-Snapshot Isolation / Lazy Replication / Self-Configuration and Elasticity / different facets of Replication
By Min Wu
The electronic info revolution has led to profound adjustments in our society and our existence. New units and strong software program have made it attainable for shoppers world wide to create, control, proportion, and luxuriate in the multimedia details. net and instant networks provide ubiquitous channels to bring and to interchange multimedia info for such pur poses as distant collaboration, far-off studying, and leisure. With these types of advances in multimedia coding and communique applied sciences over the last decade, the key hurdle for permitting a lot broader entry of multimedia resources and deployment of multimedia providers now not lies with bandwidth-related matters, yet with the way to ensure that content material is used for its meant goal via its meant recipients. The middle factor then be comes the advance of safe administration of content material utilization and supply throughout verbal exchange networks. information hiding and electronic watermarking are promising new applied sciences for multimedia info safeguard and rights administration. Secondary info could be embedded imperceptibly in electronic multimedia signs for various purposes, together with possession safety, authentication, entry con trol, and annotation. information hiding is usually used to ship aspect details in multimedia verbal exchange for supplying extra functionalities or for boosting functionality. The extraction of the embedded information mayor won't want wisdom of the unique host media info. as well as im perceptibility, robustness opposed to reasonable processing resembling compression can also be an immense consideration.
By Thomas Roelleke
Information Retrieval (IR) types are a center portion of IR examine and IR structures. The earlier decade introduced a consolidation of the kinfolk of IR versions, which by means of 2000 consisted of really remoted perspectives on TF-IDF (Term-Frequency instances Inverse-Document-Frequency) because the weighting scheme within the vector-space version (VSM), the probabilistic relevance framework (PRF), the binary independence retrieval (BIR) version, BM25 (Best-Match model 25, the most instantiation of the PRF/BIR), and language modelling (LM). additionally, the early 2000s observed the arriving of divergence from randomness (DFR).
Regarding instinct and straightforwardness, even though LM is apparent from a probabilistic standpoint, numerous humans acknowledged: "It is straightforward to appreciate TF-IDF and BM25. For LM, notwithstanding, we comprehend the mathematics, yet we don't totally comprehend why it works."
This e-book takes a horizontal method accumulating the rules of TF-IDF, PRF, BIR, Poisson, BM25, LM, probabilistic inference networks (PIN's), and divergence-based types. the purpose is to create a consolidated and balanced view at the major models.
A specific concentration of this ebook is at the "relationships among models." This contains an outline over the most frameworks (PRF, logical IR, VSM, generalized VSM) and a pairing of TF-IDF with different versions. It turns into obvious that TF-IDF and LM degree an analogous, particularly the dependence (overlap) among rfile and question. The Poisson chance is helping to set up probabilistic, non-heuristic roots for TF-IDF, and the Poisson parameter, common time period frequency, is a binding hyperlink among numerous retrieval versions and version parameters.
Table of Contents: record of Figures / Preface / Acknowledgments / creation / Foundations of IR types / Relationships among IR versions / precis & study Outlook / Bibliography / Author's Biography / Index
By C. J. Date
Type inheritance is that phenomenon in line with which we will say, for instance, that each sq. is usually a rectangle, and so houses that follow to rectangles generally follow to squares specifically. In different phrases, squares are a subtype of rectangles, and rectangles are a supertype of squares. spotting and appearing upon such subtype / supertype relationships offers quite a few advantages: definitely it may assist in info modeling, and it might additionally supply for code reuse in functions. For those purposes, many languages, together with the normal database language SQL, have lengthy supported such relationships. notwithstanding, there doesn’t appear to be any consensus in the neighborhood at huge on a proper, rigorous, and summary version of inheritance. This e-book proposes this kind of version, person who enjoys numerous benefits over different techniques, no longer the least of which it truly is that it’s absolutely suitable with the well-known relational version of data.
Topics the version covers include:
- Both unmarried and a number of inheritance
- Scalar, tuple, and relation inheritance
- Type lattices and union and intersection types
- Polymorphism and substitutability
- Compile time and run time binding
All of those themes are defined intimately within the booklet, with various illustrative examples, routines, and solutions. The booklet additionally discusses a number of replacement methods. specifically, it contains a distinct dialogue and research of inheritance as supported within the SQL standard.
By Hermann Helbig
Das Buch gibt eine umfassende Darstellung einer Methodik zur Interpretation und Bedeutungsrepräsentation natürlichsprachlicher Ausdrücke. Diese Methodik der "Mehrschichtigen Erweiterten Semantischen Netze" (MultiNet) ist sowohl für theoretische Untersuchungen als auch für die automatische Verarbeitung natürlicher Sprache auf dem Rechner geeignet. Die vorgestellten Ergebnisse sind eingebettet in ein approach von Software-Werkzeugen, die eine praktische Nutzung der MultiNet-Darstellungsmittel als Formalismus zur Bedeutungsrepräsentation sichern. Hierzu gehören: eine Werkbank für den Wissensingenieur, ein Übersetzungssystem zur automatischen Gewinnung von Bedeutungsdarstellungen natürlichsprachlicher Sätze und eine Werkbank für den Computerlexikographen. - Der Inhalt des Buches beruht auf jahrzehntelanger Forschung zur automatischen Sprachverarbeitung und wurde in der Hochschullehre an der TU Dresden und der FernUniversität Hagen wiederholt eingesetzt.