The use of multiple antennas at base stations and user devices is a key component in the design of cellular communication systems that can meet the capacity demands of tomorrow. The downlink transmission from base stations to users is particularly limiting, both from a theoretical and a practical perspective, since user devices should be simple and power-efficient, and because many applications...

We introduce SimpleNets: a resource-light solution to the sentence-level Quality Estimation task of WMT16 that combines Recurrent Neural Networks, word embedding models, and the principle of compositionality. The SimpleNets systems explore the idea that the quality of a translation can be derived from the quality of its n-grams. This approach has been successfully employed in Text Simplificatio...

We consider a setting where mobile nodes with sensing capacity form a network whose mission is to collect measurements for parameter estimation of a distributed parameter system (DPS). Two techniques to optimize node motions are presented which constitute a tradeoff between the achievable accuracy of parameter estimates and limited motion resources of sensor network nodes. The framework is base...

We present a joint source-channel multiple description (JSC-MD) framework for resource-constrained network communications (e.g., sensor networks), in which one or many deprived encoders communicate a Markov source against bit errors and erasure errors to many heterogeneous decoders, some powerful and some deprived. To keep the encoder complexity at minimum, the source is coded into K descriptio...

It is envisaged that the 4 1h generation (4G) of wireless networks will need to carry a variety of heterogeneous traffic types with different Quality of Service (QoS) requirements. A number of Medium Access Control (MAC) and Physical (PRY) layer technologies have been proposed for 4G networks. These schemes are typically based on multicarrier transmission and require a large amount of scarce ra...

In a high-speed network such as asynchronous transfer mode Syk91, Uni94] (ATM) a user can specify traac parameters that describe the intended usage pattern in more detail. These include the peak and sustainable (mean) cell rate as well as the maximum burst size. Based on these parameters the network must decide whether to accept or refuse the connection, and it must reserve resources to guarant...

While neural machine translation (NMT) has made remarkable progress in translating a handful of resource-rich language pairs recently, parallel corpora are not always readily available for most language pairs. To deal with this problem, we propose an approach to zero-resource NMT via maximum expected likelihood estimation. The basic idea is to maximize the expectation with respect to a pivot-to...

Weighted distributions can be used to fit various forms of resource selection probability functions (RSPF) under the useversus-available study design (Lele and Keim 2006). Although valid, the numerical maximization procedure used by Lele and Keim (2006) is unstable because of the inherent roughness of the Monte Carlo likelihood function. We used a combination of the methods of partial likelihoo...

Kijima and Sumita have proposed a stochastic model called the generalized renewal process (GRP) to describe the availability characteristics of repairable systems by introducing the notion of the virtual age of the system. Yanez et al. offer maximum likelihood estimation (MLE) approach for estimating parameters of the GRP models. Due to the complexity of the equations, a close solution is not a...

Over the past decade, wireless sensor networks have advanced in terms of hardware design, communication protocols, and resource efficiency. Recently, there has been growing interest in mobility, and several small-profile sensing devices that control their own movement have been developed. Unfortunately, resource constraints inhibit the use of traditional navigation methods because these typical...