Ultrahigh-Q Photonic Crystal cavities were realized in a suspended Silicon Rich Nitride (SiNx) platform for applications at telecom wavelengths. Using a line width modulated cavity design we achieved a simulated Q of 520,000 with a modal volume of 0.77(λ/n)3. The fabricated cavities were measured using the resonance scattering technique and we demonstrated a measured Q of 120,000. The experimen...

The telecom industry over the past fifteen years offers a fascinating 'natural experiment' to discuss the much debated notion of efficient market. Market efficiency was actually the central motivation and justification of the liberalization policies devised worldwide in that sector. The current severe crisis affecting the telecom sector provides an opportunity to reconsider this line of reasoni...

As businesses in every area face intense competition, advanced analytics will help improving their profitability and gain a competitive advantage by enhancing customer experience. Traditionally the analysis process has been done in off-line mode, by using Data Warehouse Technologies combined with BI tools. That is not enough anymore. Today, big data is becoming a business imperative. The benefi...

This paper analyzes the necessity and requirements of switching from service-oriented operations to product-oriented operations in telecom industry, which helps to solve the conflict between more and more homogeneous telecom services and individualized customer demands. Then this paper puts forward a comprehensive definition of telecom product, and presents a structure framework of telecom prod...

Telecom providers are losing tremendous amounts of money due to fraud risks posed to Telecom services and products. Currently, they are mainly focusing on fraud detection approaches to reduce the impact of fraud risks against their services. However, fraud prevention approaches should also be investigated in order to further reduce fraud risks and improve the revenue of Telecom providers. Fraud...

More and more information system applications have been adopted in China. Telecom operators in China are applying information services and solutions to more and more sectors and areas, of which the rural area is a typical example. Firstly, the paper describes the architecture of the mobile information system which is based on telecommunication terminals and is realized through text messaging, v...

In this paper we address the problem of modelling and analyzing human motion by focusing on 3D body skeletons. Particularly, our intent is to represent skeletal motion in a geometric and e cient way, leading to an accurate action-recognition system. Here an action is represented by a dynamical system whose observability matrix is characterized as an element of a Grassmann manifold. To formulate...

This paper describes a practical example of telecom mashup. Application (service) that mixes SMS, IVR and web services for presenting an anonymous classified service. This example demonstrates the power of telecom mashups, provides a useful use case for mixing open web API’s and telecom applications.