storage basic file structures and hashing

... Trang 23Dynamic And Extendible Hashed FilesDynamic and Extendible Hashing Techniques  Hashing techniques are adapted to allow the dynamic growth and shrinking of the number of file records  ... dynamic hashing, extendible hashing, and linear hashing.  Both dynamic and extendible hashing use the binary representation of the hash value h(K) in order to access a directory In dynamic hashing ... access time to access a specific record for a given type of file Trang 18Hashed Files Hashing for disk files is called External Hashing  The file blocks are divided into M equal-sized buckets ,

Ngày tải lên: 03/11/2017, 16:54

... Trang 28Dynamic And Extendible Hashed Files Dynamic and Extendible Hashing Techniques  Hashing techniques are adapted to allow the dynamic growth and shrinking of the number of file records. ... dynamic hashing, extendible hashing, and linear hashing.  Both dynamic and extendible hashing use the binary representation of the hash value h(K) in order to access a directory.  In dynamic hashing ... depend on the current record of a file? 4) Discuss the advantages and disadvantages of (a) unordered file, (b) ordered file, and (c) static hash file with buckets and chaining Which operations can

Ngày tải lên: 29/01/2020, 14:40

... 1Chapter 2: Disk Storage and Basic File Structures Ho Chi Minh City University of Technology Faculty of Computer Science and Engineering Trang 2 Chapter 3 Indexing Structures for Files  Chapter ... that can be applied to a file  Static files vs Dynamic files 40 Trang 412.3 Unordered Files  Unordered files = Heap files = Pile files  Records are placed in the file in the order in which ... read and search all b blocks in the file 41 Trang 482.3 Unordered Files  Unordered files = Heap files = Pile files  Inserting a new record is very efficient  The last disk block of the file

Ngày tải lên: 06/04/2023, 09:30

... Settlement: Greets and checks attendance II Warm-up: Simon says Commands: - stand up - beat the table - sit down - point your nose - clap your hands - hands up / III New lesson: T / s and Ss / activities ... present, simple past present continuous and simple future tense Ss: give structures and uses I Choose the best answer from A, B and C 1 We often have Math and English Monday. A What B How C ... again and answer the questions Ts: writes the model and asks Ss to repeat Ss: copy and read out the model Ts: provides another examples and checks the meaning, form & use Ss: follow teacher and

Ngày tải lên: 14/04/2021, 00:18

... the needs of small and midsized businesses ■ Increased flexibility You can create new pools and expand existing ones without adding any new physical storage devices Trang 7Storage Management ... trị (management)Việc quản trị Storage spaces có thể thực hiện qua các cách: ■ Using the File And Storage Services role page in Server Manager ■ Using cmdlets in the Storage module of Windows PowerShell ... diện quản trị Storage pool trên Server Manager -> chọn đến Storage primordial R_ClickTrang 38Creating a storage poolĐể tạo một ổ storage pool từ primordial pool: Step2 “New Storage Pool” và

Ngày tải lên: 03/12/2021, 20:13

... System source files and log files If /var is not a separate file system, you should create a directory on another file system and symlink /var to it /var/log Directory with system log files /var/mail ... to the file itself The difference is most evident if you delete a file: if the file has been hard linked, the other names still exist and you can access the file by them If you delete a file name ... Trang 1File systems and devices In this chapter: • File permissions • Mandator y Access Control • Director y hierarchy • File system types • Mounting file systems • FreeBSD devices

Ngày tải lên: 22/10/2013, 19:15

... ideal for use on file, print, and Web servers in a Microsoft Windows NT® version 4.0 network Enhanced file services improve storage management and make it easier for users to locate and access information ... Windows 2000 is ideal for file and print servers, Web servers, and workgroups, and provides improved network access Windows 2000 Server supports up to 4 CPUs scalability and system availability ... users, groups, and permissions Windows 2000 also provides significant performance enhancements for file, print, and Web servers Note Trang 8Benefits of a File Server Running Windows 2000 File Servers

Ngày tải lên: 17/01/2014, 08:20

... Represents commands, command options, and portions of syntax that must be typed exactly as shown It also indicates commands on menus and buttons, icons, dialog box titles and options, and icon and menu ... Configuring File and Print Servers 1:00 1:45 Module 3: Configuring File and Print Servers (continued) 1:45 2:30 Lab A: Configuring a File Server 2:45 3:00 Module 3: Configuring File and Print ... Active Directory™ directory service and its benefits for Windows 2000 file and print servers Trang 7Installing and Configuring Microsoft® Windows® 2000 File, Print, and Web Servers vii Course Timing

Ngày tải lên: 17/01/2014, 08:20

... sophistication and access to broadband as instruments; no measure for the intensity of file sharing Having shared files reduces the probability of purchasing music by 30% Relates the supply of files on file-sharing ... indicating file sharing explains more than 100% of the decline in record sales Movies and TV Smith and Telang (2006) Rob and Waldfogel (2007) Waldfogel (2007) Smith and Telang (2008) Does broadband ... consequence.10 A Brief History of File-Sharing To better understand the impact of file-sharing technology on copyright protection, it is useful to review the basics of file-sharing In this section,

Ngày tải lên: 18/02/2014, 00:20

... probabilistic correlation and prob-abilistic event structures with confusion can arise from event structures which areoriginally confusion-free by using morphisms to rename and hide events prob-1 ... [e] := ↓ e, and[e) := [e] \ {e} It is easy to see that both [e] and [e) are configurations for every evente and that therefore any event e is enabled at [e). We say that eventse1 ande2 are in ... to understand event structures with independence Buthow can general test valuations on a confusion-free event structures arise? More gen-erally how do we get runs of arbitrary event structures?

Ngày tải lên: 19/02/2014, 03:20

... dataOut is variable to receive deleted data Post data have been deleted and returned to caller Faculty of Computer Science and Engineering — HOCMUT Slide 35 Trang 36Delete Node Algorithm 1 dataOut ... 44Pointer vs Object Variable Trang 45Pointer vs Object Variable _Ì What are the pros and cons? Faculty of Computer Science and Engineering — HOCMUT Slide 45 Trang 46sample Solution: Insert template <class ... Implementation template <class List_ItemType> Trang 24Insert Node _] Allocate memory for the new node and set up data _] Point the new node to its successor _] Point the new node's predecessor to

Ngày tải lên: 06/03/2014, 17:20

... Trang 1NMR and molecular dynamics studies of an autoimmune myelin basic protein peptide and its antagonist calculations Andreas G Tzakos1, Patrick Fuchs2, Nico A J van Nuland2, Anastasios ... various systems comprised 3899 and 4516 SPC molecules for the agonist and the antagonist in water, respectively, and 817 and 927 Me2SO molecules for the agonist and the antagonist, respectively, ... in Me2SO, 98 sequential and medium-range NOEs and two long-range NOEs were used as distance restraints, whereas, in aqueous solution, 116 sequential and medium-range NOEs and two long-medium-range

Ngày tải lên: 07/03/2014, 16:20

... Hannuksela, and Howard I.Maibach Dry Skin and Moisturizers: Chemistry and Function Trang 4Marie Lodén and Howard I.Maibach Dermatologic Botany Javier Avalos and Howard I.Maibach Hand Eczema, ... dermatologists and other specialists involved in the diagnosis and management of latex intolerance will find this a useful textbook and reference source and welcome any corrections and suggestions ... Edition Torkil Menné and Howard I.Maibach Pesticide Dermatoses Homero Penagos, Michael O’Malley, and Howard I.Maibach Nickel and the Skin: Absorption, Immunology, Epidemiology, and Metallurgy Jurij

Ngày tải lên: 15/03/2014, 09:20

... difference between two cases: o when the temporary storage areas pushed on the stack come from different functions, and o when the temporary storage areas pushed on the stack come from repeated ... function call  Stack frames illustrate the storage requirements for recursion. Trang 11Tree and Stack frames of function calls11 E E E F F D E Trang 12Tree and Stack frames of function callsRecursive ... 4Subprogram implementationTrang 5Subprogram implementation5 Trang 6Tree and Stack frames of function callsTrang 7Tree and Stack frames of function callsStack frames: Each vertical column shows

Ngày tải lên: 15/03/2014, 17:20

... either empty, or it consists of a node called root together with two binary trees called the left and the right subtree of the root. Trang 14Binary Tree ADTExtended operations : • Determine whether ... 2d-tree) Trang 16Specifications for Binary Tree• Binary Tree Traversal: Each node is processed once and only once in a predetermined sequence • Depth-First Traverse: <void> preOrderTraverse ... of Binary Tree0 1 2 3 4 5 6 A B C D E F G (suitable for complete tree, nearly complete tree, and Trang 24Contiguous Implementation of Binary TreeTrang 25Contiguous Implementation of Binary

Ngày tải lên: 15/03/2014, 17:20

... between 2h-1 and (2h -1) • Complete tree: n = 2h -1 when last level is full • Nearly complete: All nodes in the last level are on the left • h = |log2 n| + 1 • Can be represented in an array and no ... called as heap) 5 Trang 6Basic heap algorithmsReheapUp : repairs a "broken" heap by floating the last element up the tree until it is in its correct location. 6 Trang 7Basic heap algorithmsReheapDown ... min-heap. Post DataIn has been inserted into the heap and the heap order property 2 loop (the parent of the element at the current_position is exists) AND (parent.key > DataIn key) 1 data [current_position]

Ngày tải lên: 15/03/2014, 17:20

... B-Tree, B*-Tree, B+-Tree  Red-Black Trees (BST and B-Tree)  2-d Tree, k-d Tree 1 Trang 2Basic Concepts2 Trang 3Basic Concepts3 Trang 44 Trang 6Trees and Orchard6 Trang 8Lexicographic Search Tree8 ... (position < subroot->count ) AND ( target > subroot->dataposition) 1 position = position + 1 // Sequential Search 3 if (position < subroot->count ) AND ( target = subroot->dataposition) ... data <array of <DataType>> branch <array of <pointer>> Trang 21Methods and FunctionsTrang 22B-Tree SeachTree22 <ErrorCode> SearchTree (ref target <DataType>)

Ngày tải lên: 15/03/2014, 17:20

... Faculty - HCMUT 25 01 December 2008 Pseudorandom Key Pseudorandom Number Generator Random Number Modulo Division Address y = ax + c For maximum efficiency, a and c should be prime numbers Cao Hoang ... Faculty - HCMUT 01 December 2008 Basic Concepts • Ideal hashing: – No location collision – Compact address space Cao Hoang Tru CSE Faculty - HCMUT 10 01 December 2008 Basic Concepts Insert A, B, C ... December 2008 Basic Concepts Insert A, B, C hash(A) = hash(B) = B and A collide at hash(C) = 17 A [1] [5] B [9] [17] Collision Resolution Cao Hoang Tru CSE Faculty - HCMUT 12 01 December 2008 Basic Concepts...

Ngày tải lên: 06/03/2014, 17:20

... DATA STRUCTURES AND ALGORITHMS USING VISUAL BASIC. NET This is the first Visual Basic. NET (VB.NET) book to provide a comprehensive discussion of the major data structures and algorithms ... Development and Windows NT Systems He is the author of Perl from the Ground Up and Object-Oriented Programming with Visual Basic. Net and coauthor of several books DATA STRUCTURES AND ALGORITHMS ... classes and object-oriented programming (OOP) to aid in the development of data structures and algorithms Using OOP techniques will make our algorithms and data structures more general and easier...

Ngày tải lên: 17/04/2014, 09:15

... simplest level of file access:   Microsoft Involves retrieving information about existing files and directories Performing typical file system operations such as copying files and creating directories ... source filename and the fully qualified destination filename You can move a file across drives and even rename it while you move it (or rename it without moving it) Microsoft 12 Figure 13.4 File ... OpenRead(), and OpenWrite() Opens a file (provided it exists) OpenText() and OpenRead() open a file in read-only mode, returning a FileStream or StreamReader OpenWrite() opens a file in write-only...

Ngày tải lên: 02/08/2014, 09:20