Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 111 for “"Identifiability"”.
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Identifiability for latent class models
… models is challenging due to the potential nonidentifiability of the underlying model parameters. In other words, multiple or infinite many sets of parameters of a latent class model could correspond to the same data generating process, i.e., are not statistically differentiable. This thesis …
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Tracking technologies, identifiability, and privacy regulations
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-15 without embargo terms
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Identifiability and estimation of mixed membership stochastic blockmodels
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-12-01
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Identifiability and parameter estimation in rail vehicle dynamics
… two major issues: the determination of parameter identifiability and the estimation of rail vehicle parameters from laboratory tests. Usually, the identifiability issue should be addressed first since identifiability determines the number of independent parameters that can be estimated. The …
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Information-Theoretic Algorithms and Identifiability for Causal Graph Discovery
It is a task of widespread interest to learn the underlying causal structure for systems of random variables. Entropic Causal Inference is a recent framework for learning the causal graph between two variables from observational data (i.e., without experiments) by finding the …
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A unified framework for identifiability analysis in bilinear inverse problems
… the question, we propose a unified framework for identifiability analysis in BIPs. We define identifiability of a BIP up to a group of transformations. Then we derive necessary and sufficient conditions for such identifiability, i.e., the conditions under which the solutions can be uniquely …
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Large-scale Trends in Vision Systems: Novel Methods for Identifiability
… in architecture and training. This lack of identifiability presents a challenge to comparison pipelines commonly used to validate artificial vision systems as models of biological vision—if two artificial vision systems with different architectures have convergent representations, we are …
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Parameter Identifiability and Estimation in Gene and Protein Interaction Networks
… models. In this paper, we present the results of identifiability analysis on a small test system, including the identifiability of parameters with respect to different measurements (proteins and mRNA), and propose a working definition for "biologically meaningful estimation". We also analyze the …
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Bilinear inverse problems with sparsity: Optimal identifiability conditions and efficient recovery
… Our contributions are twofold: we derive optimal identifiability conditions, and propose efficient algorithms that solve these problems. In previous work, we provided the first algebraic sample complexities for BD that hold for Lebesgue almost all bases or frames. We showed that for BD of a pair …
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Identifiability and estimation for restricted latent class models and hidden Markov models
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms
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Developing the detectability, identifiability, and trackability analysis for the space sustainability rating
Three of the core activities in maintaining Space Situational Awareness (SSA) efforts are the Detection, Identification, and Tracking of Anthropogenic Space Objects (ASOs). For much of the space age, the onus for improving global SSA has fallen primarily on the ground-based satellite surveillance …
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Privacy and identifiability in clinical research, personalized medicine, and public health surveillance
Electronic transmission of protected health information has become pervasive in research, clinical, and public health investigations, posing substantial risk to patient privacy. From clinical genetic screenings to publication of data in research studies, these activities have the potential to …
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Incentivizing Collaboration on Space Sustainability: Detectability, Identifiability, and Trackability of Space Missions
… Sustainability Rating is the Detectability, Identifiability, and Trackability (DIT) module. This thesis builds on the earlier work that was done to develop the first version of the DIT module and makes three primary contributions to it. First, it investigates using the previously proposed …
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Constitutive parameter identifiability and the design of experiments for applications in breast biomechanics
… quantification and visualisation of parameter identifiability, and the use of multiple experiments for improving parameter identifiability. Heterogeneous biomechanical models of the breast were developed to aid the registration of diagnostic and pre-operative MRI, and to predict the location of …
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Bridging Deep Learning and Probabilistic Inference: Towards Data Efficiency, Identifiability, and Sampling Scalability
… learning methods with improved data efficiency, identifiability, and sampling scalability. In the first part of this thesis, we investigate how probabilistic inference can enhance deep learning. We first introduce a data-efficient meta-learning framework, which combines Gaussian processes and …
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Analysis of ion channels with hidden Markov models : parameter identifiability and the problem of time interval omission
This thesis deals with a certain class of stochastic processes, namely the hidden Markov models. Hidden Markov models have proved to be an appropriate description for the ionic current through specialised proteins situated in the cell membrane. These ion channels open and close randomly and control …
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Secant varieties of Spinor varieties and of other generalized Grassmannians
… their geometry are still mysterious, among which identifiability and singularity of their points. In this thesis we study the secant varieties of lines of Grassmannians and of Spinor varieties. As first result, we completely determine their posets of orbits under the action of the groups SL and …
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A mode-jumping algorithm for exploratory factor analysis with continuous and binary responses
… the most commonly used restriction to guarantee identifiability, in which the upper $m \times m$ submatrix of the loadings is constrained to be a lower-triangular matrix with positive-diagonal elements. The PLT constraint can fail to guarantee identifiability if the constrained submatrix is …
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