Results 101 to 110 of about 399,077 (314)

Improving the performance of Hierarchical Hidden Markov Models on Information Extraction tasks [PDF]

, 2006
This thesis presents novel methods for creating and improving hierarchical hidden Markov models. The work centers around transforming a traditional tree structured hierarchical hidden Markov model (HHMM) into an equivalent model that reuses repeated sub-
Chou, Lin-Yi
core  

Spatial models for context-aware indoor navigation systems: A survey [PDF]

, 2012
This paper surveys indoor spatial models developed for research fields ranging from mobile robot mapping, to indoor location-based services (LBS), and most recently to context-aware navigation services applied to indoor environments.
Christophe Claramunt, Imad Afyouni, Christophe, Claramunt, RAY, Cyril, Cyril Ray, AFYOUNI, Imad, CLARAMUNT, Christophe   +6 more
core   +1 more source

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito, Chiara Meneghini, Alice Galli, Luca Gallo, Pierfrancesco Mitrotti, Paola Dimartino, Marianna Inglese, Cinzia Zatti, Alessandro Lupini, Andrea Pilotto, Alessandro Padovani, Micol Avenali, Enza Maria Valente, Cristina Tassorelli, Silvia P. Caminiti   +14 more
wiley   +1 more source

Empleando modelos jerárquicos para encontrar el mejor modelo para pronosticar los galones de gasolina corriente demandados en Bogotá (Colombia) || Use of hierarchical models to find the best model to forecast the gallons of regular gasoline demanded in Bogotá (Colombia)

Revista de Métodos Cuantitativos para la Economía y la Empresa, 2019
El documento tiene como objetivo encontrar el mejor modelo jerárquico que permita proyectar la demanda total de gasolina corriente y por tanto el recaudo por sobretasa a la gasolina en Bogotá, Colombia, impuesto importante para el financiamiento de la ...
Alonso Cifuentes, Julio César, Díaz, Javier Gustavo, Estrada, Daniela, Figueroa, César Alfonso, Tamura, Gabriel   +4 more
doaj  

State Institutional Capacities in a Comparative Perspective: An Experience of Bayesian Aggregation of State Capacity Index

Сравнительная политика
This article endeavors to construct a composite indicator designed to facilitate the comparative assessment of institutional capacities across diverse political systems.
I. Ye. Gorelskiy
doaj   +1 more source

Hierarchical Bass model

Journal of Physics: Conference Series, 2014
We propose a new model about diffusion of a product which includes a memory of how many adopters or advertisements a non-adopter met, where (non-)adopters mean people (not) possessing the product. This effect is lacking in the Bass model. As an application, we utilize the model to fit the iPod sales data, and so the better agreement is obtained than ...
openaire   +2 more sources

Diffusion Spectrum Imaging Maps Early Axonal Loss and a Unique Progressive Signal in Neuronal Intranuclear Inclusion Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To delineate specific in vivo white matter pathology in neuronal intranuclear inclusion disease (NIID) using diffusion spectrum imaging (DSI) and define its clinical relevance. Methods DSI was performed on 42 NIID patients and 38 matched controls.
Kaiyan Jiang, Yixiu Pei, Xiaobao Hu, Ying Xiong, Fang Wang, Yanyan Yu, Min Zhu, Dandan Tan, Meihong Zhou, Daojun Hong, Fuqing Zhou   +10 more
wiley   +1 more source

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende, Emilien Petit, Young Woo Park, Sophie Tezenas du Montcel, James M. Joers, Jonathan M. DuBois, H. Moore Arnold, Michal Povazan, Ipek Özdemir, Guita Banan, Romain Valabregue, Philipp Ehses, Jennifer Faber, Chiadi U. Onyike, Peter B. Barker, Jeremy D. Schmahmann, Eva‐Maria Ratai, Sub H. Subramony, Thomas H. Mareci, Khalaf O. Bushara, Henry Paulson, Thomas Klockgether, Alexandra Durr, Tetsuo Ashizawa, Christophe Lenglet, Gülin Öz, READISCA Investigators   +26 more
wiley   +1 more source

Towards inducing hierarchical task network domain models for AI planning from examples [PDF]

, 2006
Domain modelling for AI Planning aims to form a database of facts about the ‘world’ being modelled. This can be a complex process especially if there is a large number of objects or actions or both to be modelled.
Richardson, Nona Elizabeth
core  

Temporal aggregation of migration counts can improve accuracy and precision of trends

Avian Conservation and Ecology, 2016
Temporal replicate counts are often aggregated to improve model fit by reducing zero-inflation and count variability, and in the case of migration counts collected hourly throughout a migration, allows one to ignore nonindependence. However, aggregation
Tara L. Crewe, Philip D. Taylor, Denis Lepage   +2 more
doaj   +1 more source