[PDF] Top 20 On Concurrency Control for Inverted Files

... The side effect will depend on whether position data is used by later operations. If no position data is involved, there is no apparent side effect where ⊗ = OR since the document identifier for the inserted term will be ... See full document

... As we are unlikely to be able to keep the dictionary in-core, we keep a subset of the keywords in memory, with each element of the subset a header of a keyword block held on disk. All hit keyword blocks are saved to a ... See full document

... part files (part file 1 and part file 2) and combined into one assembly file (containing the part files 1 and 2 are ...part files, then transactions in part file 1 need not worry about the type of ... See full document

... Further, the binary relations WR-RW-WW Y (H) and WR-RW-WW y (H) contain the sets of ordered pairs of transactions corresponding to the write-read, read-write and write-write conflicts in[r] ... See full document

... enhances concurrency control for Read-only ...traditional concurrency control ...the concurrency control within update transactions, wherein, same cases in the traditional ... See full document

... Various distributed database systems have been designed and im plem ented in recent years8. M ost o f them em ploy point-to-point com m unication and static distributed database configuration. W ith the availability o f ... See full document

... and concurrency concerns within Scenario 3, whereby the AO implementations required modification of the timestamp behaviour but the OO implementation did not due to the differences in the levels of concern ... See full document

... and concurrency control in distributed database system and data security aspects of client and ...access control and the integrity of the ...access control, confidentiality, reliability, ... See full document

... The Improved Optimistic Validation Method is efficient to work with the system having minimum conflicts, at the same time the proposed method may not sufficient in the case where possibility of conflict is very high and ... See full document

... The multi version concurrency control is addressed with the Graph based algorithm. The proposed algorithm is realized on the set of transactions defined on shared data item and non shared data item. Wang et ... See full document

... the control of a generic STI with susceptible-infected-susceptible ...dynamics. Concurrency refers to being in more than one sexual partnership at the same time, and is difficult to measure ...to ... See full document

... makes concurrency control in mobile environments a challenging ...Pessimistic concurrency control mechanisms may not be suitable in mobile database environments as the wireless devices are ... See full document

... Switching Control for Inverted Pendulum System Based on Energy ...the inverted pendulum system has been derived by paying attention to the energy of ...this inverted pendulum is proposed where ... See full document

... Executions of transactions guaranteed to ensure consistency is identified by the concept of serializability with those schedules of reads / write. There are two types of schedule Serial schedule and Non-Serial schedule. ... See full document

... Petri net can present the system structure well. It describes the concurrent, conflicting, synchronizing and sequential relations in system. The composite models which are shown as graphs are more intuitive, ... See full document

... SecureDBaaS (Secure database as a service) architecture proposed by Luca Ferretti et al supports multiple clients and clients which are geographically distributed to execute the independent and concurrent operation on ... See full document

... Reference [2] explains that in one phase commit protocol (IPC), the cost of atomic commit is reduced by eliminating the voting phase of 2PC: two communication steps, together with their associated forced log writes, are ... See full document

... All systems are prone to failures, and handling recovery from failure is a must. The properties of the generated schedules, which are dictated by the concurrency control mechanism, may have an impact on the ... See full document

... The transaction request needs the access to data in the multiple machines existed in the distributed storage system [3]. To ensure the serializability and to meet the requirements of the application semantics, the ... See full document

... returned. Concurrency control deals with issues involved with allowing multiple end users simultaneous access to shared entities, such as objects or data ...use concurrency control methods, so ... See full document