Chapter 11: Indexing and Hashing
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
Chapter 11: Indexing and Hashing
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
Chapter 7: Relational Database Design
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
Compact Representations of Separable Graphs
... Our data structure is based on recursively separating a graph and using the separators to renumber the vertices (first numbering one subgraph, then the separator vertices, then the other subgraph). Because of the properties of small separators, most edges will connect vertices that are close in this ...
... Our data structure is based on recursively separating a graph and using the separators to renumber the vertices (first numbering one subgraph, then the separator vertices, then the other subgraph). Because of the properties of small separators, most edges will connect vertices that are close in this ...
4 Static Inverted Indices - Information Retrieval Group
... in these postings lists is used by the system to process search queries. The dictionary serves as a lookup data structure on top of the postings lists. For every query term in an incoming search query, the search engine first needs to locate the term’s postings list before it can start processing th ...
... in these postings lists is used by the system to process search queries. The dictionary serves as a lookup data structure on top of the postings lists. For every query term in an incoming search query, the search engine first needs to locate the term’s postings list before it can start processing th ...
Database System Concepts, 5th Ed
... Result of splitting node containing Brighton and Downtown on inserting Clearview Next step: insert entry with (Downtown,pointer-to-new-node) into parent ...
... Result of splitting node containing Brighton and Downtown on inserting Clearview Next step: insert entry with (Downtown,pointer-to-new-node) into parent ...
Part III. Database technology - Université technique de Sofia
... unique, system-assigned transaction identifier. In comparison with the four examples of anomaly illustrated above, this model omits any reference to the manipulation operations performed on the data by the transaction. As far as the theory of concurrency control is concerned, each transaction is a s ...
... unique, system-assigned transaction identifier. In comparison with the four examples of anomaly illustrated above, this model omits any reference to the manipulation operations performed on the data by the transaction. As far as the theory of concurrency control is concerned, each transaction is a s ...
Storing and Indexing Massive RDF Data Sets
... Figure 1.2 illustrates this idea for the RDF graph in Figure 1.1. Techniques from the information retrieval literature can then be specialized to support queries patterns that retrieve entities based on particular attributes and/or values [18]. For example, we have in Figure 1.2 that user8604 is ret ...
... Figure 1.2 illustrates this idea for the RDF graph in Figure 1.1. Techniques from the information retrieval literature can then be specialized to support queries patterns that retrieve entities based on particular attributes and/or values [18]. For example, we have in Figure 1.2 that user8604 is ret ...
Introduction to C++ Programming and Data Structures: Notes
... C/ C++ Statements A C++ statement must be terminated with a semicolon. One can place many statements on a single line, each separated by a semicolon. However it is a good coding practice to place each statement on a separate line. It makes the code more readable, therefore easier to understand and d ...
... C/ C++ Statements A C++ statement must be terminated with a semicolon. One can place many statements on a single line, each separated by a semicolon. However it is a good coding practice to place each statement on a separate line. It makes the code more readable, therefore easier to understand and d ...
C-Programming
... machine. They started adding features and upgrading it. Ultimately they made a machine, named ENIAC. It was a huge machine having switch for input data and bulbs for output. At that time scientists assumed if they could have four such machines then the computing need of the world would have been sol ...
... machine. They started adding features and upgrading it. Ultimately they made a machine, named ENIAC. It was a huge machine having switch for input data and bulbs for output. At that time scientists assumed if they could have four such machines then the computing need of the world would have been sol ...
Sets, Maps and Hash tables
... Hash Tables • The implementations HashSet and HashMap are based on a Hash Table • A Hash Table is based on the below ideas: – Create an array of length N, which can store objects of some type T – Find a mapping from T to the interval [0; N-1] (a Hash Function f) – Store an object t of type T in the ...
... Hash Tables • The implementations HashSet and HashMap are based on a Hash Table • A Hash Table is based on the below ideas: – Create an array of length N, which can store objects of some type T – Find a mapping from T to the interval [0; N-1] (a Hash Function f) – Store an object t of type T in the ...
int i
... Input from a file of data and do not know how many data items there are. Files have a special marker to indicate the end of data end-of-file (eof) marker Condition to terminate loop can be controlled by using the eof marker ...
... Input from a file of data and do not know how many data items there are. Files have a special marker to indicate the end of data end-of-file (eof) marker Condition to terminate loop can be controlled by using the eof marker ...
Starting Out with Java
... 22) If numbers is a two-dimensional array, which of the following would give the length of row, r? A) numbers.length B) numbers.length[r] C) numbers[r].length[r] D) numbers[r].length Answer: D 23) Which of the following is a correct method header for receiving a two-dimensional array as an argument? ...
... 22) If numbers is a two-dimensional array, which of the following would give the length of row, r? A) numbers.length B) numbers.length[r] C) numbers[r].length[r] D) numbers[r].length Answer: D 23) Which of the following is a correct method header for receiving a two-dimensional array as an argument? ...
Offset Addressing Approach to Memory
... IP lookup. Second, a core router contains about 310K prefix rules [4], and forwarding tables are expanding exponentially. It necessitates compressing the forwarding data structures to fit in small high-speed memory on line cards. Third, virtual routers [5-6] are emerging as a promising technology, w ...
... IP lookup. Second, a core router contains about 310K prefix rules [4], and forwarding tables are expanding exponentially. It necessitates compressing the forwarding data structures to fit in small high-speed memory on line cards. Third, virtual routers [5-6] are emerging as a promising technology, w ...
Analytical Design Space Exploration of Caches for Embedded Systems
... Technical Report CECS-02-27 ...
... Technical Report CECS-02-27 ...
Example of Sparse Index Files
... primary index kept on disk as a sequential file and construct a sparse index on it. " outer index – a sparse index of primary index " inner index – the primary index file ! If even outer index is too large to fit in main memory, yet another ...
... primary index kept on disk as a sequential file and construct a sparse index on it. " outer index – a sparse index of primary index " inner index – the primary index file ! If even outer index is too large to fit in main memory, yet another ...
A Simple Optimal Representation for Balanced Parentheses
... findclose(p): Let p be the position of an open parenthesis. First determine by a table lookup whether it is far. If not, the table gives the answer. If it is, use pred(p, P ) to find the previous pioneer p∗ . We can show that this will be an open parenthesis. Find its position in the pioneer family ...
... findclose(p): Let p be the position of an open parenthesis. First determine by a table lookup whether it is far. If not, the table gives the answer. If it is, use pred(p, P ) to find the previous pioneer p∗ . We can show that this will be an open parenthesis. Find its position in the pioneer family ...
Control table
Control tables are tables that control the control flow or play a major part in program control. There are no rigid rules about the structure or content of a control table—its qualifying attribute is its ability to direct control flow in some way through ""execution"" by a processor or interpreter. The design of such tables is sometimes referred to as table-driven design (although this typically refers to generating code automatically from external tables rather than direct run-time tables). In some cases, control tables can be specific implementations of finite-state-machine-based automata-based programming. If there are several hierarchical levels of control table they may behave in a manner equivalent to UML state machinesControl tables often have the equivalent of conditional expressions or function references embedded in them, usually implied by their relative column position in the association list. Control tables reduce the need for programming similar structures or program statements over and over again. The two-dimensional nature of most tables makes them easier to view and update than the one-dimensional nature of program code. In some cases, non-programmers can be assigned to maintain the control tables.