Academic literature on the topic 'Penalized least squares'
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Journal articles on the topic "Penalized least squares"
Kaufman, L. "Maximum likelihood, least squares, and penalized least squares for PET." IEEE Transactions on Medical Imaging 12, no. 2 (June 1993): 200–214. http://dx.doi.org/10.1109/42.232249.
Full textEubank, R. L., and R. F. Gunst. "Diagnostics for penalized least-squares estimators." Statistics & Probability Letters 4, no. 5 (August 1986): 265–72. http://dx.doi.org/10.1016/0167-7152(86)90101-x.
Full textWibowo, Wahyu, Sri Haryatmi, and I. Nyoman Budiantara. "Penalized least squares for semiparametric regression." International Journal of Academic Research 4, no. 6 (November 9, 2012): 281–86. http://dx.doi.org/10.7813/2075-4124.2012/4-6/a.39.
Full textKohler, M., and A. Krzyzak. "Nonparametric regression estimation using penalized least squares." IEEE Transactions on Information Theory 47, no. 7 (2001): 3054–58. http://dx.doi.org/10.1109/18.998089.
Full textBates, Douglas M., and Saikat DebRoy. "Linear mixed models and penalized least squares." Journal of Multivariate Analysis 91, no. 1 (October 2004): 1–17. http://dx.doi.org/10.1016/j.jmva.2004.04.013.
Full textGuerrero, Victor M. "Time series smoothing by penalized least squares." Statistics & Probability Letters 77, no. 12 (July 2007): 1225–34. http://dx.doi.org/10.1016/j.spl.2007.03.006.
Full textPeng, Heng, and Tao Huang. "Penalized least squares for single index models." Journal of Statistical Planning and Inference 141, no. 4 (April 2011): 1362–79. http://dx.doi.org/10.1016/j.jspi.2010.10.003.
Full textWittich, O., A. Kempe, G. Winkler, and V. Liebscher. "Complexity penalized least squares estimators: Analytical results." Mathematische Nachrichten 281, no. 4 (April 2008): 582–95. http://dx.doi.org/10.1002/mana.200510627.
Full textSpiriti, Steven, Randall Eubank, Philip W. Smith, and Dennis Young. "Knot selection for least-squares and penalized splines." Journal of Statistical Computation and Simulation 83, no. 6 (June 2013): 1020–36. http://dx.doi.org/10.1080/00949655.2011.647317.
Full textZhu, Rong, Guohua Zou, Hua Liang, and Lixing Zhu. "Penalized Weighted Least Squares to Small Area Estimation." Scandinavian Journal of Statistics 43, no. 3 (December 18, 2015): 736–56. http://dx.doi.org/10.1111/sjos.12201.
Full textDissertations / Theses on the topic "Penalized least squares"
Munoz, Maldonado Yolanda. "Mixed models, posterior means and penalized least squares." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2637.
Full textPechmann, Patrick R. "Penalized Least Squares Methoden mit stückweise polynomialen Funktionen zur Lösung von partiellen Differentialgleichungen." kostenfrei, 2008. http://www.opus-bayern.de/uni-wuerzburg/volltexte/2008/2813/.
Full textGarreau, Damien. "Change-point detection and kernel methods." Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLEE061/document.
Full textIn this thesis, we focus on a method for detecting abrupt changes in a sequence of independent observations belonging to an arbitrary set on which a positive semidefinite kernel is defined. That method, kernel changepoint detection, is a kernelized version of a penalized least-squares procedure. Our main contribution is to show that, for any kernel satisfying some reasonably mild hypotheses, this procedure outputs a segmentation close to the true segmentation with high probability. This result is obtained under a bounded assumption on the kernel for a linear penalty and for another penalty function, coming from model selection.The proofs rely on a concentration result for bounded random variables in Hilbert spaces and we prove a less powerful result under relaxed hypotheses—a finite variance assumption. In the asymptotic setting, we show that we recover the minimax rate for the change-point locations without additional hypothesis on the segment sizes. We provide empirical evidence supporting these claims. Another contribution of this thesis is the detailed presentation of the different notions of distances between segmentations. Additionally, we prove a result showing these different notions coincide for sufficiently close segmentations.From a practical point of view, we demonstrate how the so-called dimension jump heuristic can be a reasonable choice of penalty constant when using kernel changepoint detection with a linear penalty. We also show how a key quantity depending on the kernelthat appears in our theoretical results influences the performance of kernel change-point detection in the case of a single change-point. When the kernel is translationinvariant and parametric assumptions are made, it is possible to compute this quantity in closed-form. Thanks to these computations, some of them novel, we are able to study precisely the behavior of the maximal penalty constant. Finally, we study the median heuristic, a popular tool to set the bandwidth of radial basis function kernels. Fora large sample size, we show that it behaves approximately as the median of a distribution that we describe completely in the setting of kernel two-sample test and kernel change-point detection. More precisely, we show that the median heuristic is asymptotically normal around this value
Krčál, Adam. "High-dimensional VAR analysis of regional house prices in United States." Master's thesis, Vysoká škola ekonomická v Praze, 2015. http://www.nusl.cz/ntk/nusl-202128.
Full textSorba, Olivier. "Pénalités minimales pour la sélection de modèle." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS043/document.
Full textL. Birgé and P. Massart proved that the minimum penalty phenomenon occurs in Gaussian model selection when the model family arises from complete variable selection among independent variables. We extend some of their results to discrete Gaussian signal segmentation when the model family corresponds to a sufficiently rich family of partitions of the signal's support. This is the case of regression trees. We show that the same phenomenon occurs in the context of density estimation. The richness of the model family can be related to a certain form of isotropy. In this respect the minimum penalty phenomenon is intrinsic. To corroborate this point of view, we show that the minimum penalty phenomenon occurs when the models are chosen randomly under an isotropic law
Chen, Long. "Méthodes itératives de reconstruction tomographique pour la réduction des artefacts métalliques et de la dose en imagerie dentaire." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112015/document.
Full textThis thesis contains two main themes: development of new iterative approaches for metal artifact reduction (MAR) and dose reduction in dental CT (Computed Tomography). The metal artifacts are mainly due to the beam-hardening, scatter and photon starvation in case of metal in contrast background like metallic dental implants in teeth. The first issue concerns about data correction on account of these effects. The second one involves the radiation dose reduction delivered to a patient by decreasing the number of projections. At first, the polychromatic spectra of X-ray beam and scatter can be modeled by a non-linear direct modeling in the statistical methods for the purpose of the metal artifacts reduction. However, the reconstruction by statistical methods is too much time consuming. Consequently, we proposed an iterative algorithm with a linear direct modeling based on data correction (beam-hardening and scatter). We introduced a new beam-hardening correction without knowledge of the spectra of X-ray source and the linear attenuation coefficients of the materials and a new scatter estimation method based on the measurements as well. Later, we continued to study the iterative approaches of dose reduction since the over-exposition or unnecessary exposition of irradiation during a CT scan has been increasing the patient's risk of radio-induced cancer. In practice, it may be useful that one can reconstruct an object larger than the field of view of scanner. We proposed an iterative algorithm on super-short-scans on multiple scans in this case, which contain a minimal set of the projections for an optimal dose. Furthermore, we introduced a new scanning mode of variant angular sampling to reduce the number of projections on a single scan. This was adapted to the properties and predefined interesting regions of the scanned object. It needed fewer projections than the standard scanning mode of uniform angular sampling to reconstruct the objet. All of our approaches for MAR and dose reduction have been evaluated on real data. Thanks to our MAR methods, the quality of reconstructed images was improved noticeably. Besides, it did not introduce some new artifacts compared to the MAR method of state of art NMAR [Meyer et al 2010]. We could reduce obviously the number of projections with the proposed new scanning mode and schema of super-short-scans on multiple scans in particular case
Pechmann, Patrick R. "Penalized Least Squares Methoden mit stückweise polynomialen Funktionen zur Lösung von partiellen Differentialgleichungen." Doctoral thesis, 2008. https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-28136.
Full textThis work focuses on approximating solutions of partial differential equations with Dirichlet boundary conditions by means of spline functions. The application of partial differential equations concerns the fields of electrostatics, elasticity, fluid flow as well as the analysis of the propagation of heat and sound. Some approximation problems do not have a unique solution. By applying the penalized least squares method it has been shown that uniqueness of the solution of a certain class of minimizing problems can be guaranteed. In some cases it is even possible to reach higher stability of the numerical method. For the numerical analysis we have developed an extensive and efficient C code. It serves as the basis to confirm theoretical predictions with practical applications
Pechmann, Patrick R. [Verfasser]. "Penalized least squares Methoden mit stückweise polynomialen Funktionen zur Lösung von partiellen Differentialgleichungen / vorgelegt von Patrick R. Pechmann." 2008. http://d-nb.info/989690660/34.
Full textChlubnová, Tereza. "Výběr modelu na základě penalizované věrohodnosti." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-347986.
Full textMansor, Mohd Mahayaudin bin. "Directionality in time series and its applications." Thesis, 2017. http://hdl.handle.net/2440/114245.
Full textThesis (Ph.D.) (Research by Publication) -- University of Adelaide, School of Mathematical Sciences, 2018
Books on the topic "Penalized least squares"
Cardot, Hervé, and Pascal Sarda. Functional Linear Regression. Edited by Frédéric Ferraty and Yves Romain. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780199568444.013.2.
Full textBook chapters on the topic "Penalized least squares"
Von Golitschek, M., and L. L. Schumaker. "Data fitting by penalized least squares." In Algorithms for Approximation II, 210–27. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4899-3442-0_20.
Full textBunea, Florentina, Alexandre B. Tsybakov, and Marten H. Wegkamp. "Aggregation and Sparsity Via ℓ1 Penalized Least Squares." In Learning Theory, 379–91. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11776420_29.
Full textLetchford, Adrian, Junbin Gao, and Lihong Zheng. "Penalized Least Squares for Smoothing Financial Time Series." In AI 2011: Advances in Artificial Intelligence, 72–81. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-25832-9_8.
Full textMuñoz Maldonado, Yolanda. "Mixed Models, Posterior Means and Penalized Least-Squares." In Institute of Mathematical Statistics Lecture Notes - Monograph Series, 216–36. Beachwood, Ohio, USA: Institute of Mathematical Statistics, 2009. http://dx.doi.org/10.1214/09-lnms5713.
Full textBeran, Rudolf. "Multivariate regression through affinely weighted penalized least squares." In Institute of Mathematical Statistics Collections, 33–46. Beachwood, Ohio, USA: Institute of Mathematical Statistics, 2013. http://dx.doi.org/10.1214/12-imscoll904.
Full textHuang, Jian, and Huiliang Xie. "Asymptotic oracle properties of SCAD-penalized least squares estimators." In Institute of Mathematical Statistics Lecture Notes - Monograph Series, 149–66. Beachwood, Ohio, USA: Institute of Mathematical Statistics, 2007. http://dx.doi.org/10.1214/074921707000000337.
Full textMoulart, Raphaël, and René Rotinat. "Evaluation of the Penalized Least Squares Method for Strain Computation." In Conference Proceedings of the Society for Experimental Mechanics Series, 43–50. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-22449-7_5.
Full textMa, Zongjie, Huawen Liu, Kaile Su, and Zhonglong Zheng. "PPML: Penalized Partial Least Squares Discriminant Analysis for Multi-Label Learning." In Web-Age Information Management, 645–56. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08010-9_69.
Full textSchaffrin, Burkhard. "On Penalized Least-Squares: Its Mean Squared Error and a Quasi-Optimal Weight Ratio." In Recent Advances in Linear Models and Related Areas, 313–22. Heidelberg: Physica-Verlag HD, 2008. http://dx.doi.org/10.1007/978-3-7908-2064-5_16.
Full textSawatzky, Alex. "Performance of First-Order Algorithms for TV Penalized Weighted Least-Squares Denoising Problem." In Lecture Notes in Computer Science, 340–49. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07998-1_39.
Full textConference papers on the topic "Penalized least squares"
Gudmundson, Erik, and Petre Stoica. "On denoising via penalized least-squares rules." In ICASSP 2008 - 2008 IEEE International Conference on Acoustics, Speech and Signal Processing. IEEE, 2008. http://dx.doi.org/10.1109/icassp.2008.4518457.
Full textLiu, Huawen, Zongjie Ma, Jianmin Zhao, and Zhonglong Zheng. "Penalized partial least squares for multi-label data." In 2014 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM). IEEE, 2014. http://dx.doi.org/10.1109/asonam.2014.6921635.
Full textLi, Yuqiang, Tianhong Pan, Haoran Li, and Shan Chen. "Baseline correction using local smoothing optimization penalized least squares." In 2022 IEEE International Symposium on Advanced Control of Industrial Processes (AdCONIP). IEEE, 2022. http://dx.doi.org/10.1109/adconip55568.2022.9894165.
Full textPanahi, Ashkan, and Mats Viberg. "A novel method of DOA tracking by penalized least squares." In 2013 IEEE 5th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP). IEEE, 2013. http://dx.doi.org/10.1109/camsap.2013.6714007.
Full textIatrou, Maria, Bruno De Man, Kedar Khare, and Thomas M. Benson. "A 3D study comparing filtered backprojection, weighted least squares, and penalized weighted least squares for CT reconstruction." In 2007 IEEE Nuclear Science Symposium Conference Record. IEEE, 2007. http://dx.doi.org/10.1109/nssmic.2007.4436689.
Full textIatrou, M., B. De Man, and S. Basu. "A comparison between Filtered Backprojection, Post-Smoothed Weighted Least Squares, and Penalized Weighted Least Squares for CT reconstruction." In 2006 IEEE Nuclear Science Symposium Conference Record. IEEE, 2006. http://dx.doi.org/10.1109/nssmic.2006.356470.
Full textGao, Ning, and Cai-yun Gao. "The Application of Penalized Least Squares Estimation to GPS Height Fitting." In 2009 International Conference on Information Engineering and Computer Science. IEEE, 2009. http://dx.doi.org/10.1109/iciecs.2009.5365251.
Full textKumar, B. Naveen, and S. Chris Prema. "Noise variance estimation through penalized least-squares for ED-spectrum sensing." In 2016 International Conference on Communication Systems and Networks (ComNet). IEEE, 2016. http://dx.doi.org/10.1109/csn.2016.7823980.
Full textTreister, Eran, and Irad Yavneh. "A multilevel iterated-shrinkage approach to l-1 penalized least-squares minimization." In 2012 IEEE 27th Convention of Electrical & Electronics Engineers in Israel (IEEEI 2012). IEEE, 2012. http://dx.doi.org/10.1109/eeei.2012.6377004.
Full textWang, Jing, Tianfang Li, Hongbing Lu, and Zhengrong Liang. "Penalized weighted least-squares approach for low-dose x-ray computed tomography." In Medical Imaging, edited by Michael J. Flynn and Jiang Hsieh. SPIE, 2006. http://dx.doi.org/10.1117/12.653903.
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