Blind deconvolution is an ubiquitous non-linear inverse problem in applications like wireless communications and image processing. This problem is generally ill-posed, and there have been efforts to use sparse models for regularizing blind deconvolution to promote signal identifiability. Part I of this two-part paper characterizes the ambiguity space of blind deconvolution and shows unidentifia...

Carrier-phase ambiguity resolution is usually based on the assumption that the underlying model of observation equations is of full rank. In this contribution the model of observation equations is assumed to be of less than full rank. The well-known three-step procedure of integer least squares is generalized and it is shown how the solution can be affected by the rank deficiency. Although the ...

This paper investigates the adequacy of the hierarchical Bayes (HB) model for rankbased conjoint data. While recent research has demonstrated the robustness of the HB model compared to traditional estimation methods for rank based conjoint models, we conduct an indepth analysis of the underlying reasons of these findings. Hereby we investigate the fundamental assumptions of rank based conjoint ...

objectives: each year, the united nations publishes an annual report titled by “human development report” for all countries around the world which in which the complex index for human development for achieving health life alongside education and economic welfare is examined. the innate ambiguity in estimation of human development index has brought about numerous criticism against the method of ...

We develop a symbolic computational approach to classifying lowrank modular fusion categories, up to finite ambiguity. By a generalized form of Ocneanu rigidity due to Etingof, Ostrik and Nikshych, it is enough to classify modular fusion algebras of a given rank–that is, to determine the possible Grothendieck rings with modular realizations. We use this technique to classify modular categories ...

OBJECTIVE/AIMS To investigate the presence of signal ambiguity of intrapartum fetal heart rate (FHR) monitoring during delivery by comparing simultaneous cardiotocogram (CTG), abdominal fetal electrocardiogram (ECG) with continuous maternal ECG. METHODS A total of 144 simultaneous CTG (Corometrics 250 series), abdominal fetal ECG (Monica -AN24™) and maternal ECG (Monica AN24™) recordings were...

In this paper, we explore how keyword ambiguity can affect search advertising performance. Consumers arrive at search engines with diverse interests, which are often unobserved and nontrivial to predict. The search interests of different consumers may vary even when they are searching using the same keyword. In our study, we propose an automatic way of examining keyword ambiguity based on proba...