Results 111 to 120 of about 6,852,071 (351)

Statistical inference for time-inhomogeneous volatility models

, 2004
This paper offers a new approach for estimating and forecasting the volatility of financial time series. No assumption is made about the parametric form of the processes.
Mercurio, Danilo, Spokoiny, Vladimir
core   +1 more source

What is a statistical model? [PDF]

The Annals of Statistics, 2002
This paper addresses two closely related questions, "What is a statistical model?" and "What is a parameter?" The notions that a model must "make sense," and that a parameter must "have a well-defined meaning" are deeply ingrained in applied statistical work, reasonably well understood at an instinctive level, but absent from most formal theories of ...
openaire   +2 more sources

Fog, Friction, and Failure in Organized Conflict: A Formal Study

Axioms
Organized conflict, while confined by the laws of physics—and, under profound strategic incompetence, by the Lanchester equations—is not a physical process but rather an extended exchange between cognitive entities that have been shaped by path-dependent
Rodrick Wallace
doaj   +1 more source

Theoretical construction of 1D anyon models [PDF]

arXiv, 2007
One-dimensional anyon models are renewedly constructed by using path integral formalism. A statistical interaction term is introduced to realize the anyonic exchange statistics. The quantum mechanics formulation of statistical transmutation is presented.
arxiv  

Integrative analysis of circulating tumor cells (CTCs) and exosomes from small‐cell lung cancer (SCLC) patients: a comprehensive approach

Molecular Oncology, EarlyView.
This study simultaneously investigated circulating tumor cells (CTCs) and exosomes from small‐cell lung cancer (SCLC) patients. The elevated expression of JUNB and CXCR4 in CTCs was a poor prognostic factor for SCLC patients, whereas exosomal overexpression of these biomarkers revealed a high discrimination ability of patients from healthy individuals,
Dimitrios Papakonstantinou, Argyro Roumeliotou, Evangelia Pantazaka, Athanasios‐Nasir Shaukat, Athina Christopoulou, Angelos Koutras, Foteinos‐Ioannis Dimitrakopoulos, Vassilis Georgoulias, Anastasia Xagara, Evangelia Chantzara, Fillipos Koinis, Athanasios Kotsakis, Constantinos Stathopoulos, Galatea Kallergi   +13 more
wiley   +1 more source

Formula to evaluate a limit related to AR(k) model of Statistics [PDF]

arXiv, 2015
Computing moments of various parameter estimators related to an autoregressive model of Statistics, one needs to evaluate several expressions of the type mentioned in the title of this article. We proceed to derive the corresponding formulas.
arxiv  

Detection rate for ESR1 mutations is higher in circulating‐tumor‐cell‐derived genomic DNA than in paired plasma cell‐free DNA samples as revealed by ddPCR

Molecular Oncology, EarlyView.
Analysis of ESR1 mutations in plasma cell‐free DNA (cfDNA) is highly important for the selection of treatment in patients with breast cancer. Using multiplex‐ddPCR and identical blood draws, we investigated whether circulating tumor cells (CTCs) and cfDNA provide similar or complementary information for ESR1 mutations.
Stavroula Smilkou, Aliki Ntzifa, Victoria Tserpeli, Ioanna Balgkouranidou, Alkistis Papatheodoridi, Evangelia Razis, Helena Linardou, Christos Papadimitriou, Amanda Psyrri, Flora Zagouri, Stylianos Kakolyris, Evi Lianidou   +11 more
wiley   +1 more source

Statistical thermodynamics for choice models on graphs

, 2003
Formalism based on equilibrium statistical thermodynamics is applied to communication networks of decision making individuals. It is shown that in statistical ensembles for choice models, properly defined disutility can play the same role as energy in ...
Abramson, Albert, Anderson, Arkadiusz Majka, Barabási, Beck, Beck, Ben-Akiva, Berg, Berg, Braunstein, Burda, Burgos, Challet, de los Rios, Dobson, Dorogovtsev, Durlauf, Ebel, Ein-Dor, Erdös, Erdös, Hennings, Jackson, Louviere, Majka, Marsili, Rényi, Schwartz, Seno, Straffin, Touchette, Train, Tsallis, Wiślicki, Wojciech Wiślicki, Woolf   +36 more
core   +1 more source

Analysis of Bus Service Reliability Using A VL Data: Case Study of the City of Koper

Promet (Zagreb), 2008
This article uses a statistical approach to examine the bussystem reliability in the city of Koper. Four statistical modelswere developed using OLS to explain the effect of different variableson system reliability.
Dejan Paliska, Jurij Kolenc
doaj   +1 more source

Damage nucleation phenomena: Statistics of times to failure [PDF]

arXiv, 2009
In this paper we investigate the statistical behavior of an annealed continuous damage model. For different model variations we study distributions of times to failure and compare these results with the classical case of metastable nucleation in statistical mechanics.
arxiv