23,322 research outputs found
The AGROVOC concept server: rationale, goals and usage
No full textThe main objective of the AGROVOC Concept Server (CS)is to create a collaborative reference platform and a one-stop shop for a pool of commonly used concepts related to agriculture, containing terms, definitions and relationships between terms in multiple languages derived from various sources. This paper aims to address the issues
Enhancing Author Information for CERN Document Server: Creating an Author Collection and Using Author Disambiguation Methods
No full textAuthors are a substantial part of queries in digital libraries, where the results are reflecting the service quality and success. Ambiguous author names can confuse users and cause an inaccurate relation between authorships and individual researchers. Providing a set of disambiguated authors is challenging and related to data integration, since this is done in several ways and by different systems, both manually and automatically. Many disambiguation algorithms have been proposed in the literature, where the most solutions are solving the ambiguities by applying machine learning techniques. However, such problems cannot be solved with an accuracy of 100%. Our contributions to the CERN Document Server presented in this work consists of two parts: first, we create and deploy an author knowledge data base (collection) and second, we link authors of bibliographic records back to their authority records. For the latter, we use a library providing machine learning tools for clustering (where we use trained data from INSPIRE---a High-Energy Physics literature database developed at CERN) and construct an algorithm to build the relation, based on authority id and name matching. We could attribute 30% of 9 million authors to almost 9'500 individuals, which is also limited to our current author collection containing more than 41'000 records (and counting), based on people affiliated to the organization
Mastering Microsoft Windows Server 2008 R2
No full textThe one book you absolutely need to get up and running with Windows Server 2008 R2. One of the world's leading Windows authorities and top-selling author Mark Minasi explores every nook and cranny of the latest version of Microsoft's flagship network operating system, Windows Server 2008 R2, giving you the most in-depth coverage in any book on the market.: Focuses on Windows Windows Server 2008 R2, the newest version of Microsoft's Windows' server line of operating system, and the ideal server for new Windows 7 clients; Author Mark Minasi is one of the world's leading Windows authorities and
Expert SQL Server 2008 Development
No full textExpert SQL Server 2008 Development is aimed at SQL Server developers ready to move beyond Books Online. Author and experienced developer Alastair Aitchison shows you how to think about SQL Server development as if it were any other type of development. You'll learn to manage testing in SQL Server and to properly deal with errors and exceptions. The book also covers critical, database-centric topics such as managing concurrency and securing your data and code through proper privileges and authorization. Alastair places focus on sound development and architectural practices that will help you b
Multi-server Asynchronous Federated Learning
No full textIn federated learning systems, a server maintains a global model trained by a set of clients based on their local datasets. Conventional synchronous FL systems are very sensitive to system heterogeneity since the server needs to wait for the slowest clients in each round. Asynchronous fl partially addresses this bottleneck by dealing with updates once they are received. But with a single server, the system performance would be influenced if the clients are located far from the server and require very high communication costs. Another issue in single-server settings is that the client scale is limited since the server can be overloaded with heavy communication and computation workload. Moreover, a crash on the central server is fatal to the single-server system. Multi-server FLreduces the average communication cost by decreasing the distance between servers and clients. However, the bottleneck brought by the slowest clients still exists in multi-server systems that preserve synchrony, such as Hierarchical FL. The approach we follow in this paper consists in replicating the server in a way that the global training process remains asynchronous. We propose MultiAsync, a novel asynchronous multi-server FL framework that aims to address the single-server and synchronous-system bottleneck.Electrical Engineering | Embedded System
Server-Side Experimentation: Common challenges from 12 organisations in The Netherlands
No full textBackground: experimentation is widely adopted within industry. Many large organisations have invested in their own infrastructure to be able to run experiments server-side. Objective: we wanted to investigate why organisations switch to server-side experimen- tation and which challenges they encounter in doing so. Method: a qualitative virtual discussion based on a survey was conducted. Twelve Dutch organisations, represented by twelve interviewees, participated in the study. Results: organisations switch to server- side experimentation to run higher quality, more advanced and cheaper experiments. Challenges organisations face are: a shortage of development resources, no standardized process and a lack of a culture of experimentation. Conclusions: this is the first study that explores why organisations from The Netherlands in transition to continuous experimentation choose for investing in server-side experimentation infrastructure, and the challenges they encounter.Accepted author manuscriptSoftware EngineeringSoftware Technolog
Mastering Windows Server 2008 Networking Foundations
No full textFind in-depth coverage of general networking concepts and basic instruction on Windows Server 2008 installation and management including active directory, DNS, Windows storage, and TCP/IP and IPv4 networking basics in Mastering Windows Server 2008 Networking Foundations. One of three new books by best-selling author Mark Minasi, this guide explains what servers do, how basic networking works (IP basics and DNS/WINS basics), and the fundamentals of the under-the-hood technologies that support staff must understand. Learn how to install Windows Server 2008 and build a simple network, security c
Essential SQL on SQL Server 2008
No full textThis book, written for readers who have little or no previous experience with databases, SQL, or SQL Server, provides a very systematic approach to learning SQL (Structured Query Language) using SQL Server. Each chapter is written in a step-by-step manner and has examples that can be run using SQL Server. Using the sample tables and data provided, the reader of this book will be able to do all the examples to experience hands-on SQL programming in SQL Server. The text also presents a series of exercises at the end of the chapters to help readers gain proficiency with SQL. With this book you will learn: Beginning SQL commands how to retrieve and manipulate data using the simple SELECT statement. How to customize SQL Server 2008 s settings and about SQL Server 2008 s functions. How to create, alter, populate and delete tables. About joins, a common database mechanism for combining tables. Query development, the use of views and other derived structures. Simple set operations. About aggregate functions. How to write subqueries and correlated subqueries. How to create and use indexes and constraints. Transaction processing.BookPublishe
Learning SQL on SQL Server 2005
No full textAnyone who interacts with today's modern databases needs to know SQL (Structured Query Language), the standard language for generating, manipulating, and retrieving database information. In recent years, the dramatic rise in the popularity of relational databases and multi-user databases has fueled a healthy demand for application developers and others who can write SQL code efficiently and correctly.
If you're new to databases, or need a SQL refresher, "Learning SQL on SQL Server 2005" is an ideal step-by-step introduction to this database query tool, with everything you need for programming SQL using Microsoft's SQL Server 2005-one of the most powerful and popular database engines used today. Plenty of books explain database theory. This guide lets you apply the theory as you learn SQL. You don't need prior database knowledge, or even prior computer knowledge.
Based on a popular university-level course designed by authors Sikha Saha Bagui and Richard Walsh Earp, "Learning SQL on SQL Server 2005" starts with very simple SQL concepts, and slowly builds into more complex query development. Every topic, concept, and idea comes with examples of code and output, along with exercises to help you gain proficiency in SQL and SQL Server 2005. With this book, you'll learn:
Beginning SQL commands, such as how and where to type an SQL query, and how to create, populate, alter and delete tables
How to customize SQL Server 2005's settings and about SQL Server 2005's functions
About joins, a common database mechanism for combining tables
Query development, the use of views and other derived structures, and simple set operations
Subqueries, aggregate functions and correlatedsubqueries, as well as indexes and constraints that can be added to tables in SQL Server 2005
Whether you're an undergraduate computer science or MIS student, a self-learner who has access to the new Microsoft database, or work for your company's IT department, "Learning SQL on SQL Server 2005" will get you up to speed on SQL in no time.BookPublishe
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