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By representing data through compact binary encodings, hashing techniques have been widely used for data retrieval because of their large data storage and efficient computational time. Most hashing algorithms typically learn a finite number of data projections, but learning optimal projections remains unaddressed. To deal with this limitation, a novel approach, dubbed Adaptive Hashing with Sparse...
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While sparse representation is heavily emphasized in many recent literatures, the importance of collaborative representation is usually ignored. In this paper, we exploit the advantage of collaborative representation and propose a maximum entropy regularized group collaborative representation (MECR) algorithm for face recognition. MECR takes the group structure of the face data into consideration...
We proposed a dynamic routing and frequency slots allocation scheme which adopted the adaptive modulation for a novel Spectrum-sLICed Elastic optical path network (SLICE). In our dynamic routing scheme, both spectrum resource availability (SRA) and distance (hop number) are considered at the modulation format selection phase for adaptive modulation. We then conducted numerical simulation to compare...
For the Destination Initialed Reservation (DIR) in Wavelength Switched Optical Networks (WSONs) using the distributed wavelength assignment scheme, the establishment of a lightpath might be blocked because of the contention for the same lambda between two or more concurrent requests traversing the same links, although there might be enough available lambda resource. In order to reduce the blocking...
Proposed in this paper is a backup-reservation-based wavelength assignment (BRWA) scheme for wavelength switched optical networks (WSONs). The rationale behind the idea is to reserve a backup lambda in addition to the primary one for a lightpath if the number of the available lambdas can meet certain constraints. Therefore a threshold is defined to determine whether to reserve a backup lambda according...
This paper proposes a method to reduce the overheads of routing protocol by balancing network performance parameters in GMPLS network. When the traffic load is light, LSAs advertise traditional IGP weight for the link, but on the condition that the traffic load is heavy, LSAs advertise weight according to the occupied wavelengths of the links. After amending the weighting function of the link, we...
A PCE-based congestion avoidance (CA) and Virtual Network Topologies (VNT) reconfiguration (CA-VNTR) routing scheme is proposed and detailed algorithm of CA-VNTR is provided. Simulations are conducted to compare the proposed scheme with traditional routing method in terms of blocking probability and resource utility. Results show that CA-VNTR outperforms traditional routing method in blocking probability,...
Study of incentive mechanism is always frontier and hot topic in economics. In student education and management work of independent institute, a variety of incentive mechanism also need be applied to stimulate student's study enthusiasm and cultivate the all-round development human, according to the students' actual features.
The mechanical properties of rocks can be continuously calculated with the help of theory of elastic mechanics and logging data (AC-sonic log, DEN-density log, CN-neutron log). A GIS administration system will be very helpful in running these data. This system applies the client/middle tier/server framework. It is composed of database, data access engine, purview control middleware and clients. Drawing...
The biosorption of reactive red on acid-treated Penicilium sp. was investigated in a packed-bed column. The column experiments were conducted to study the effect of operating parameters such as initial dye concentration, adsorbent dose and flow rate on the column removal capacity. The Thomas model was used to analyze the experimental data. Column experiments showed that the fungal mycelia mixed with...
The ability of Mg-Fe layered double hydroxide to remove C. I. Reactive Red 2 from aqueous solution was investigated. The influence of molar ratio of Mg-Fe, solution pH, contact time and initial dye concentration on adsorption capacity of C. I. Reactive Red 2 was studied. Batch isotherm studies were carried out on a laboratory scale to evaluate the adsorption capacity of Mg-Fe layered double hydroxide...
Based on the depth, efficiency of financial development and the scale of securities market, through the Unit Root Test, Co-integration Test and Granger Causality Test methods, we analyzed the causality between financial development and economic growth of Fujian Province during the period from 1978 to 2008. We find out that there is a bidirectional causality between the depth of financial development...
In order to solve the wavelength resource reserve collision problem in distributed wavelength assignment scenario for PCE/GMPLS-based WSONs, a half-centralized wavelength assignment scheme has been proposed, which efficiently avoids the collision by adding several functions to PCE and does some extensions to the GMPLS signaling.
Proposed in this paper is a PCE-Assistant Collision-Avoiding Wavelength Assignment Scheme (PACAWAS) for transparent Wavelength Switched Optical Networks (WSONs) to solve the resource contention problem in distributed wavelength assignment scenario. In this scheme, several extensions are made to the GMPLS (Generalized Multi Protocol Label Switching) signaling, and a wavelength selection assistant unit...
This paper aims to study the lock-in strategy adopted by firms in network industries from the perspective of network effects. By introducing the network effects theory and corresponding lock-in model, it studies the rationale and practicality of lock-in strategy in network industries. Using Tencent QQ as an example, the theoretical conclusion of lock-in is applied in specific case study. It concludes...
As the economic system gets more interconnected and complex, the conventional economics based on diminishing returns and negative feedbacks are facing tremendous challenges. Multiple-equilibria, lock-in and inefficient path dependence are often witnessed. This paper aims to study the network economic system with non-linear positive feedback from theory to application. Starting from the concept of...
This paper aims to study the impact of network effects on the market structure of network industries. It starts from the concept of "network effects" and then extends to a simplified model of market structure and the empirical test of China's Internet industries. It draws the conclusion that the market structure of network industries with strong network effects tends to be more concentrated...
It is well known that economy has developed rapidly in Eastern China since the reform and opening up, while the quality of eco-environment is becoming worse and worse. In the presented contribution, the speed and rationality of the urban growth in Suzhou city at various stages were studied, using the data of Landsat TM satellite images in 1995, 2000 and 2005. Moreover, the ecological footprint and...
Against the backdrop of widespread networks in the modern world, this paper aims to study the transformation of network economic system in general and its market structure in specific. It is organized in the mode of "concept introduction-model setup-empirical study". Starting from the concept of "network effects", it is then extended to a simplified model of market structure and...
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