Multi-View & Multi-Vendor Ventricular Segmentation

Cardiac MRI segmentation is a clinically interesting field that can accelerate and improve diagnostics. Targeting the capability of models towards better generalizing in unseen subsets of data that can better represent minority cohorts, greatly enhancing the lives of multiple people, cheapening the diagnostics, and making current models more resilient to unseen pathologies. In this project, our aim was to study how different architectures behave in a multiview multivendor multipathology scenario with respect to these generalization capacities and explore how postprocessing can improve the results. In addition, we also assess the computational cost that these models need to ensure that they are valid for clinical products and machines that can be reached at any clinical center

First demonstration of multi-vendor and multi-domain EON with S-BVT and control interoperability over Pan-European testbed

The operation of multi-domain and multi-vendor EONs can be achieved by interoperable Sliceable Bandwidth Variable Transponders, a GMPLS / BGP-LS-based control plane and a planning tool. This paper reports the first full demonstration and validation this end-to-end architecture

Experimental Validation of an Open Source Quality of Transmission Estimator for Open Optical Networks

We test the QoT-E of the GNPy library fed by data from the network controller against experimental measurements on mixed-fiber, Raman-amplified, multi-vendor scenarios on the full C-band: an excellent accuracy within 1 dB is shown

Rancang Bangun Aplikasi Multi Vendor Katering Berbasis Android

Aplikasi ini telah dirancang dengan baik sebagai salah satu inovasi yang dapat menjembatani pelanggan katering dengan pihak vendor katering. Dengan menggunakan aplikasi ini pelanggan dapat melakukan pemesanan dan memilih menu dari vendor katering yang tersedia tanpa perlu menghubungi satu persatu vendor katering yang bersangkutan. Lalu, di pihak vendor katering juga dapat dengan mudah memproses pesanan dari pelanggan melalui aplikasi dan mengurangi terjadinya kesalahan pada saat transaksi

Creating multi-vendor solutions: the resources and capabilities required.

Purpose – The purpose of this paper is to investigate the resources and capabilities required by manufacturers to develop and deliver multi-vendor solutions. Design/methodology/approach – A multi-case design comprising six UK-based manufacturers: two from each of the aerospace/defence, information technology and telecommunications sectors. Findings – Manufacturers can be characterized by their propensity to include products from other vendors in their solutions; single vendor solution providers (SVSPs) focus on solutions comprising their own products, while multi-vendor solution providers (MVSPs) fully embrace products from other manufacturers. Three capabilities were identified which distinguish MVSPs from SVSPs given the complexity of multi-vendor solutions (expertise specifying the solution, engineers trained in implementing/supporting the solution, partnerships with component suppliers of the solution). These capabilities are underpinned by both technical capability and impartiality in solution specification. Research limitations/implications – MVSPs need to be impartial when specifying customer solutions. They should be guided by the best interests of the customer rather than the interests of the product-based SBUs. Achieving impartiality can conflict with some manufacturers' product heritage. The research has focused on three sectors; further research is needed to test whether the findings are applicable beyond these sectors. Practical implications – Solutions are a valuable approach in creating market differentiation, although not all manufacturers will possess the resources/capabilities to be successful. Originality/value – A continuum of solution providers is proposed; SVSPs at one extreme and MVSPs at the other. The operant resource-based capability “impartiality” was identified as being particularly important to MVSPs in creating value for customers. </jats:sec

Customer-engineer relationship management for converged ICT service companies

Thanks to the advent of converged communications services (often referred to as ‘triple play’), the next generation Service Engineer will need radically different skills, processes and tools from today’s counterpart. Why? in order to meet the challenges of installing and maintaining services based on multi-vendor software and hardware components in an IP-based network environment. The converged services environment is likely to be ‘smart’ and support flexible and dynamic interoperability between appliances and computing devices. These radical changes in the working environment will inevitably force managers to rethink the role of Service Engineers in relation to customer relationship management. This paper aims to identify requirements for an information system to support converged communications service engineers with regard to customer-engineer relationship management. Furthermore, an architecture for such a system is proposed and how it meets these requirements is discussed

Interoperability and Quality Assurance for Multi-Vendor LTE Network

The deployment of the LTE is picking up pace in many countries and these networks are deployed alongside the existing 2G/3G services. LTE/LTE-A networks offer higher data rates and reduced delay to the subscribers. Today's mobile networks consist of equipment from multiple vendors and they are called multiple vendor networks. Interoperability testing is important at initial network launch and during network expansion. This paper discusses a typical problem related to interoperability testing along with the test results and the issues faced during the testing. The test results discussed in the paper are obtained from three scenarios - before testing, during testing and after testing. The test results are used to study the impact on network performance. Apart from the interoperability testing, an outline of testing that focus on general network stability, the interworking capability of LTE with other technologies such as 2G and 3G and taxonomy for the generation of key performance indicators (KPIs) are also discussed

Multi-vendor standardized sequence for edited magnetic resonance spectroscopy

Spectral editing allows direct measurement of low-concentration metabolites, such as GABA, glutathione (GSH) and lactate (Lac), relevant for understanding brain (patho)physiology. The most widely used spectral editing technique is MEGA-PRESS, which has been diversely implemented across research sites and vendors, resulting in variations in the final resolved edited signal. In this paper, we describe an effort to develop a new universal MEGA-PRESS sequence with HERMES functionality for the major MR vendor platforms with standardized RF pulse shapes, durations, amplitudes and timings. New RF pulses were generated for the universal sequence. Phantom experiments were conducted on Philips, Siemens, GE and Canon 3 T MRI scanners using 32-channel head coils. In vivo experiments were performed on the same six subjects on Philips and Siemens scanners, and on two additional subjects, one on GE and one on Canon scanners. On each platform, edited MRS experiments were conducted with the vendor-native and universal MEGA-PRESS sequences for GABA (TE = 68 ms) and Lac editing (TE = 140 ms). Additionally, HERMES for GABA and GSH was performed using the universal sequence at TE = 80 ms. The universal sequence improves inter-vendor similarity of GABA-edited and Lac-edited MEGA-PRESS spectra. The universal HERMES sequence yields both GABA- and GSH-edited spectra with negligible levels of crosstalk on all four platforms, and with strong agreement among vendors for both edited spectra. In vivo GABA+/Cr, Lac/Cr and GSH/Cr ratios showed relatively low variation between scanners using the universal sequence. In conclusion, phantom and in vivo experiments demonstrate successful implementation of the universal sequence across all four major vendors, allowing editing of several metabolites across a range of TEs.publishedVersio

Do Loyalty Programs Enhance Behavioral Loyalty: An Empirical Analysis Accounting for Program Design and Competitive Effects

This paper studies the effects of loyalty programs on share-of-wallet using market-wide household panel data on supermarket purchases.We find that loyalty programs relate positively to share-of-wallet, but the programs differ in effectiveness and some are ineffective.Both a saving component and a multi-vendor structure enhance the effectiveness of a loyalty program, but high discounts do not lead to higher share-of-wallets.Further, if households have multiple loyalty cards, the effectiveness of a specific loyalty program is much smaller.The positive loyalty program effects on share-of-wallet entail substantial additional customer revenues.However, given the high number of loyalty programs already available in the market, our model predicts that a new loyalty program introduction will only lead to small effects on share-of-wallet.loyalty;marketing;retailing