scholarly journals A Cache Mechanism for Component-Based WebGIS

2004 ◽  
pp. 940-947
Author(s):  
Yingwei Luo ◽  
Xiaolin Wang ◽  
Zhuoqun Xu
Keyword(s):  
Cache Mechanism

Cooperative Mechanism of Local Memory and Cache in Network Processors

2013 ◽  
Vol 380-384 ◽  
pp. 1969-1972
Author(s):  
Bo Yuan ◽  
Jin Dou Fan ◽  
Bin Liu
Keyword(s):  
Packet Processing ◽  
Network Processors ◽  
Local Memory ◽  
Memory Space ◽  
Memory Mechanism ◽  
Hierarchical Memory ◽  
Packet Data ◽  
On Chip ◽  
Cache Mechanism ◽  
Cache Miss

Traditional network processors (NPs) adopt either local memory mechanism or cache mechanism as the hierarchical memory structure. The local memory mechanism usually has small on-chip memory space which is not fit for the various complicated applications. The cache mechanism is better at dealing with the temporary data which need to be read and written frequently. But in deep packet processing, cache miss occurs when reading each segment of packet. We propose a cooperative mechanism of local memory and cache. In which the packet data and temporary data are stored into local memory and cache respectively. The analysis and experimental evaluation shows that the cooperative mechanism can improve the performance of network processors and reduce processing latency with little extra resources cost.

Research on Virtual Data Access to Oil-Gas Information Integration Platform Based on MTCA-DDA

2013 ◽  
Vol 278-280 ◽  
pp. 1853-1856
Author(s):  
Li Yang ◽  
Xin Yu Gen ◽  
Xie Dong Cao
Keyword(s):  
Information Integration ◽  
Data Access ◽  
Data Cache ◽  
Distributed Data ◽  
Gas Field ◽  
Integration Platform ◽  
Cache Mechanism ◽  
Oil Gas ◽  
Access Efficiency ◽  
Virtual Data

To solve virtual access to distributed oil-gas field data, a new distributed data access model is used to virtual data access center integration platform in oil-gas field.By introducing multi-task cooperative agent (MTCA-DDA), collaboration of MTCA-DDA can efficiently solve distributed data access collaboration problem. Failure server scheme guarantees distributed data continous access. Periodic exchange and data cache mechanism greatly improve data distributed store and access speed.Virtual data access center integration platform shows MTCA-DDA model can improve data access efficiency and enhance the reliability of data access.MTCA-DDA model with periodic exchange and data cache can effectively solve storage and reliability of massive distributed data access and provides a new way for similar distributed application.

scholarly journals Privacy Protection of Social Networks Based on Classified Attribute Encryption

2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
Lin Zhang ◽  
Li Li ◽  
Eric Medwedeff ◽  
Haiping Huang ◽  
Xiong Fu ◽  
...  
Keyword(s):  
Social Networks ◽  
Privacy Protection ◽  
Rapid Development ◽  
Good Friend ◽  
Privacy And Security ◽  
Protection Scheme ◽  
Data Owner ◽  
System Overhead ◽  
The Cost ◽  
Cache Mechanism

With the rapid development of social networks, privacy has also attracted attention. Based on this problem, a privacy protection scheme for social networks based on classified attribute encryption (PPSSN) is proposed for the data owner and attribute management server to manage user permissions; the approach reduces data owner overhead and also avoids use of a property management server to limit access user collusion attacks. To balance the privacy and security of data publication, this scheme classifies users and designs access control for different users and different privileges. In addition, this paper also introduces a good friend data cache mechanism to improve and optimize the original scheme to reduce the cost of decryption. The efficiency and system overhead of the proposed scheme are compared and analyzed based on experiments. The experiments show that the proposed scheme improves query efficiency, reduces system cost, and enhances privacy security.

Disk Cache mechanism of tile data based on HTML5 technology

2015 ◽  
Author(s):  
JingMin Tu ◽  
Xiangang Luo ◽  
Wenjie Zhao ◽  
Xuejing Xie ◽  
Xincai Wu
Keyword(s):  
Disk Cache ◽  
Cache Mechanism

scholarly journals Security Enhancement Using Cache Based Reauthentication in WiMAX Based E-Learning System

2015 ◽  
Vol 2015 ◽  
pp. 1-6
Author(s):  
Chithra Rajagopal ◽  
Kalaavathi Bhuvaneshwaran
Keyword(s):  
Rural Areas ◽  
Data Access ◽  
Learning System ◽  
Wimax Networks ◽  
Security Enhancement ◽  
E Learning ◽  
Session Hijacking ◽  
Cache Mechanism ◽  
Caching Mechanism ◽  
Multicast Services

WiMAX networks are the most suitable for E-Learning through their Broadcast and Multicast Services at rural areas. Authentication of users is carried out by AAA server in WiMAX. In E-Learning systems the users must be forced to perform reauthentication to overcome the session hijacking problem. The reauthentication of users introduces frequent delay in the data access which is crucial in delaying sensitive applications such as E-Learning. In order to perform fast reauthentication caching mechanism known as Key Caching Based Authentication scheme is introduced in this paper. Even though the cache mechanism requires extra storage to keep the user credentials, this type of mechanism reduces the 50% of the delay occurring during reauthentication.

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