cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.29931813.v2
title: On Smooth Transition Interval Autoregressive Models

description: Interval time series (ITS) analysis has important significance econometric analysis, as it contains information about the range of change and the level or trend of economic processes. More importantly, the rich information of interval data can be used for more accurate quantitative estimation and inference. Considering the possible nonlinear characteristics of ITS data, this article introduces a class of smooth transition interval autoregressive (STIAR) models, which includes the logistic STIAR (LSTIAR) model and the exponential STIAR (ESTIAR) model as special cases. The minimum distance estimation method is proposed to estimate the model parameters and the asymptotic theory of the estimator is established. The nonlinearity test of the model is also well solved. Finally, some numerical simulation results and a practical data example are given.
DOI: 10.6084/m9.figshare.30465700.v1
title: Double Dynamic Max-copula Model with Application to Financial Time Series

description: Accurately modeling time-varying dependence structures is essential for financial market analysis, particularly during periods of market stress. Recognizing that traditional copula models often fail to jointly capture dynamic dependence and tail behavior, this paper proposes a double dynamic max-copula (DDMC) model that accommodates time variation while effectively characterizing tail dependence. To estimate the model, we introduce a maximum composite profile likelihood estimator, and establish its consistency and asymptotic normality. We also propose a test statistic to check whether the dependence parameter is time-varying, and derive the asymptotic distribution of the proposed test statistic. Simulation studies confirm the flexibility and robustness of the proposed model. In an empirical application, we analyze the evolving interdependence between U.S. financial markets, demonstrating the model’s ability to capture dynamic relationships. Furthermore, in a portfolio optimization context, the DDMC-based portfolio consistently outperforms those generated by benchmark models.
DOI: 10.6084/m9.figshare.30465700.v2
title: Double Dynamic Max-Copula Model with Application to Financial Time Series

description: Accurately modeling time-varying dependence structures is essential for financial market analysis, particularly during periods of market stress. Recognizing that traditional copula models often fail to jointly capture dynamic dependence and tail behavior, this article proposes a double dynamic max-copula (DDMC) model that accommodates time variation while effectively characterizing tail dependence. To estimate the model, we introduce a maximum composite profile likelihood estimator, and establish its consistency and asymptotic normality. We also propose a test statistic to check whether the dependence parameter is time-varying, and derive the asymptotic distribution of the proposed test statistic. Simulation studies confirm the flexibility and robustness of the proposed model. In an empirical application, we analyze the evolving interdependence between U.S. financial markets, demonstrating the model’s ability to capture dynamic relationships. Furthermore, in a portfolio optimization context, the DDMC-based portfolio consistently outperforms those generated by benchmark models.
DOI: 10.6084/m9.figshare.29931813.v1
title: On smooth transition interval autoregressive models

description: Interval time series (ITS) analysis has important significance econometric analysis, as it contains information about the range of change and the level or trend of economic processes. More importantly, the rich information of interval data can be used for more accurate quantitative estimation and inference. Considering the possible nonlinear characteristics of ITS data, this paper introduces a class of smooth transition interval autoregressive (STIAR) models, which includes the logistic STIAR (LSTIAR) model and the exponential STIAR (ESTIAR) model as special cases. The minimum distance estimation method is proposed to estimate the model parameters and the asymptotic theory of the estimator is established. The nonlinearity test of the model is also well solved. Finally, some numerical simulation results and a practical data example are given.
DOI: 10.6084/m9.figshare.29741194
title: Resolving challenges in the development of a protocol for <i>δ</i><sup>18</sup>O determinations on tree-ring cellulose

description: Tree rings can provide annual records of environmental and climatic conditions. These records can be obtained through the physical characteristics of tree rings or the isotopic composition of their structural elements. Oxygen isotope chronologies are created by objectively combining data from trees. The diachronic patterns observed in the <i>δ</i><sup>18</sup>O of the tree-ring cellulose represent tree-environment interactions. The abundance of <sup>18</sup>O in tree-ring cellulose is closely linked to hydroclimate, and is influenced by source water <i>δ</i><sup>18</sup>O and atmospheric humidity. Long sequences of annually resolved tree-ring <i>δ</i><sup>18</sup>O values have been used, to good effect, in the dating of archaeological timbers and as proxies in the reconstruction of climatic variables. In this research we have established a working methodology for producing and measuring <i>δ</i><sup>18</sup>O in tree-ring <i>α</i>-cellulose at the University of Groningen. We have demonstrated an average precision of approximately 0<i>.</i>2 ‰ under a variety of conditions, which exceeds the expected performance of continuous flow IRMS techniques. Difficulties were encountered during the calibration of tree-ring cellulose <i>δ</i><sup>18</sup>O determinations using non-cellulose, organic reference materials. A difference in pyrolysis behaviour or one, or more compromised materials, resulted in poor agreement between measured and expected <i>δ</i><sup>18</sup>O values on cellulose standards. This opens the possibility for further study. Analysis of cellulose standards alongside water reference materials and an independent quality control standard proved successful, resulting in a number of cellulose standards being accurately placed on the VSMOW-SLAP scale, including the intercomparison and <i>de facto</i> reference material IAEA-C3 holocellulose.
DOI: 10.6084/m9.figshare.29741194.v1
title: Resolving challenges in the development of a protocol for <i>δ</i><sup>18</sup>O determinations on tree-ring cellulose

description: Tree rings can provide annual records of environmental and climatic conditions. These records can be obtained through the physical characteristics of tree rings or the isotopic composition of their structural elements. Oxygen isotope chronologies are created by objectively combining data from trees. The diachronic patterns observed in the <i>δ</i><sup>18</sup>O of the tree-ring cellulose represent tree-environment interactions. The abundance of <sup>18</sup>O in tree-ring cellulose is closely linked to hydroclimate, and is influenced by source water <i>δ</i><sup>18</sup>O and atmospheric humidity. Long sequences of annually resolved tree-ring <i>δ</i><sup>18</sup>O values have been used, to good effect, in the dating of archaeological timbers and as proxies in the reconstruction of climatic variables. In this research we have established a working methodology for producing and measuring <i>δ</i><sup>18</sup>O in tree-ring <i>α</i>-cellulose at the University of Groningen. We have demonstrated an average precision of approximately 0<i>.</i>2 ‰ under a variety of conditions, which exceeds the expected performance of continuous flow IRMS techniques. Difficulties were encountered during the calibration of tree-ring cellulose <i>δ</i><sup>18</sup>O determinations using non-cellulose, organic reference materials. A difference in pyrolysis behaviour or one, or more compromised materials, resulted in poor agreement between measured and expected <i>δ</i><sup>18</sup>O values on cellulose standards. This opens the possibility for further study. Analysis of cellulose standards alongside water reference materials and an independent quality control standard proved successful, resulting in a number of cellulose standards being accurately placed on the VSMOW-SLAP scale, including the intercomparison and <i>de facto</i> reference material IAEA-C3 holocellulose.
DOI: 10.6084/m9.figshare.29930238.v1
title: Groundwater recharge mechanisms in the lower Tri An hydropower reservoir region, Dong Nai Province, Vietnam, as studied using isotopic technique

description: In recent years, climate change-induced drought has increasingly led to water shortages for domestic and industrial use in Dong Nai Province, Vietnam. Within this province, the Tri An hydropower reservoir plays a crucial role in the sustainability of regional water resources. This study aims to assess groundwater recharge mechanisms in the lower Tri An hydropower reservoir (LTAHR) region using isotopic technique based on the water stable isotope ratios (δD and δ¹⁸O) in groundwater, surface water and local precipitation. The results obtained indicate that the stable isotope values of precipitation in the region exhibit significant seasonal variations, whereas that values of surface water in the reservoir maintains more stability. On the other hand, stable isotopic compositions in groundwater are significantly influenced by monsoonal activity and temperature fluctuations. Applying the end-member mixing analysis (EMMA) method, the study revealed that surface water is the primary contributor to groundwater recharge, accounting for 60–85 %, while precipitation contributes 15–40 %, depending upon the season. Thus, the change of water storage level in the Tri An hydropower reservoir, along with the impacts of El Niño and climate variability, may disrupt seasonal water balance and significantly reduce annual groundwater recharge.
DOI: 10.6084/m9.figshare.29930238
title: Groundwater recharge mechanisms in the lower Tri An hydropower reservoir region, Dong Nai Province, Vietnam, as studied using isotopic technique

description: In recent years, climate change-induced drought has increasingly led to water shortages for domestic and industrial use in Dong Nai Province, Vietnam. Within this province, the Tri An hydropower reservoir plays a crucial role in the sustainability of regional water resources. This study aims to assess groundwater recharge mechanisms in the lower Tri An hydropower reservoir (LTAHR) region using isotopic technique based on the water stable isotope ratios (δD and δ¹⁸O) in groundwater, surface water and local precipitation. The results obtained indicate that the stable isotope values of precipitation in the region exhibit significant seasonal variations, whereas that values of surface water in the reservoir maintains more stability. On the other hand, stable isotopic compositions in groundwater are significantly influenced by monsoonal activity and temperature fluctuations. Applying the end-member mixing analysis (EMMA) method, the study revealed that surface water is the primary contributor to groundwater recharge, accounting for 60–85 %, while precipitation contributes 15–40 %, depending upon the season. Thus, the change of water storage level in the Tri An hydropower reservoir, along with the impacts of El Niño and climate variability, may disrupt seasonal water balance and significantly reduce annual groundwater recharge.
DOI: 10.15468/dl.xx3hvg
title: Occurrence Download

description: A dataset containing 3564 species occurrences available in GBIF matching the query:
{
 "Geometry" : [
 "POLYGON ((-105.8688 22.64913, -105.7188 22.64913, -105.7188 22.79913, -105.8688 22.79913, -105.8688 22.64913))"
 ]
}

 The dataset includes 3564 records from 47 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0034211-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.qn4wcf
title: Occurrence Download

description: A dataset containing 700 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-158.85429 30.02944,-74.14571 30.02944,-74.14571 63.97056,-158.85429 63.97056,-158.85429 30.02944))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Martes caurina",
 "Year 1970-2020"
 ]
}

 The dataset includes 700 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0034214-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.6rzt6p
title: Occurrence Download

description: A dataset containing 142 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Cistanthe paniculata"
 ]
}

 The dataset includes 142 records from 20 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0034215-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.w8cw3f
title: Occurrence Download

description: A dataset containing 1735 species occurrences available in GBIF matching the query:
{
 "Geometry" : [
 "POLYGON ((-105.7188 22.64913, -105.5688 22.64913, -105.5688 22.79913, -105.7188 22.79913, -105.7188 22.64913))"
 ]
}

 The dataset includes 1735 records from 67 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0034216-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.jgknf5
title: Occurrence Download

description: A dataset containing 60 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Haageocereus pacalaensis"
 ]
}

 The dataset includes 60 records from 14 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0034217-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.29825477
title: Ichnotaxonomy and paleobiology of a bird track assemblage from the Miocene Vinchina Formation of La Rioja province, Argentina

description: Ichnotaxonomy and paleobiology of a bird track assemblage from the Miocene Vinchina Formation of La Rioja province, Argentina
DOI: 10.6084/m9.figshare.29825477.v1
title: Ichnotaxonomy and paleobiology of a bird track assemblage from the Miocene Vinchina Formation of La Rioja province, Argentina

description: Ichnotaxonomy and paleobiology of a bird track assemblage from the Miocene Vinchina Formation of La Rioja province, Argentina
DOI: 10.15468/dl.k9ufea
title: Occurrence Download

description: A dataset containing 417 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-140.56001 10.65076,-66.43999 10.65076,-66.43999 40.34924,-140.56001 40.34924,-140.56001 10.65076))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Nyctinomops femorosaccus",
 "Year 1970-2020"
 ]
}

 The dataset includes 417 records from 27 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0034220-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.upd9rf
title: Occurrence Download

description: A dataset containing 69 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Valeriana pinnatifida"
 ]
}

 The dataset includes 69 records from 16 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0034221-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.17611098
title: MDBench: Benchmarking Data-Driven Methods for Model Discovery

description: This record contains the dataset accompanying the paper "MDBench: Benchmarking Data-Driven Methods for Model Discovery," accepted to AAAI 2026.

MDBench is an open-source benchmark suite for data-driven model discovery, featuring 14 PDE systems and 63 ODE systems generated under multiple noise settings. For full details, see the preprint: https://arxiv.org/abs/2509.20529 and the official codebase: https://github.com/gryaklab/mdbench.

The processed archive provides the subsampled noisy and clean datasets in a unified NPZ format. The raw archive contains all original datasets from which the processed versions were derived.
DOI: 10.5281/zenodo.17611099
title: MDBench: Benchmarking Data-Driven Methods for Model Discovery

description: This record contains the dataset accompanying the paper "MDBench: Benchmarking Data-Driven Methods for Model Discovery," accepted to AAAI 2026.

MDBench is an open-source benchmark suite for data-driven model discovery, featuring 14 PDE systems and 63 ODE systems generated under multiple noise settings. For full details, see the preprint: https://arxiv.org/abs/2509.20529 and the official codebase: https://github.com/gryaklab/mdbench.

The processed archive provides the subsampled noisy and clean datasets in a unified NPZ format. The raw archive contains all original datasets from which the processed versions were derived.
DOI: 10.15468/dl.sf5rfg
title: Occurrence Download

description: A dataset containing 73 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Harttia dissidens"
 ]
}

 The dataset includes 73 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0034222-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.17613346
title: Submitted Galaxy Scores to the Gravitational Wave Treasure Map for event MS251114x Preliminary

description: Attached in a .json file is the ranked galaxy information within the contour region of the EM counterpart search associated with the gravitational wave event MS251114x Preliminary. A reference to these calculations can be found here: https://ui.adsabs.harvard.edu/abs/2017ApJ...848L..33A/abstract
DOI: 10.5281/zenodo.17613347
title: Submitted Galaxy Scores to the Gravitational Wave Treasure Map for event MS251114x Preliminary

description: Attached in a .json file is the ranked galaxy information within the contour region of the EM counterpart search associated with the gravitational wave event MS251114x Preliminary. A reference to these calculations can be found here: https://ui.adsabs.harvard.edu/abs/2017ApJ...848L..33A/abstract
DOI: 10.34740/kaggle/dsv/13736920
title: Berita UII
DOI: 10.6084/m9.figshare.30621362
title: Content of ten amino acids essential to western honey bees in different diet types.

description: Key to variable names & types:amino -- amino acid (categorical)treatment -- diet type (categorical)conc -- concentration (%) (numerical)
DOI: 10.6084/m9.figshare.30621362.v1
title: Content of ten amino acids essential to western honey bees in different diet types.

description: Key to variable names & types:amino -- amino acid (categorical)treatment -- diet type (categorical)conc -- concentration (%) (numerical)
DOI: 10.15468/dl.vxbv67
title: Occurrence Download

description: A dataset containing 54 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Matelea aliciae"
 ]
}

 The dataset includes 54 records from 13 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0034223-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.nm97j4
title: Occurrence Download

description: A dataset containing 7 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "PublishingCountry is Colombia",
 {
 "and" : [
 "Country is Colombia",
 {
 "not" : {
 "Issue" : [
 "is Country coordinate mismatch"
 ]
 }
 }
 ]
 }
 ]
 },
 {
 "and" : [
 {
 "or" : [
 "Year is 2017",
 "Year is 2018",
 "Year is 2019",
 "Year is 2020",
 "Year is 2021",
 "Year is 2022",
 "Year is 2023",
 "Year is 2024",
 "Year is 2016",
 "Year is 2015"
 ]
 },
 "BasisOfRecord is one of (Human Observation, Material sample, Machine Observation)",
 "TaxonKey is one of (Lontra longicaudis [GBIF Backbone Taxonomy])",
 "StateProvince is one of (Cundinamarca, Bogotá, D.C.)"
 ]
 }
 ]
}

 The dataset includes 7 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0034224-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.avtnez
title: Occurrence Download

description: A dataset containing 107 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Geranium limae"
 ]
}

 The dataset includes 107 records from 15 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0034225-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25345/c57h1f121
title: MassIVE MSV000099912 - S. elongatus PCC 7942 Circadian Thermo Proteo Profiling (TPP) Proteomics - Light vs Dark with Dense and Dilute
title: TMT10-labeled samples from TPP experimental assays investigating structural alterations in Light vs Dark growth conditions with Dense and Dilute cultures. Samples are Synechococcus elongatus PCC 7942 cell lysates (BTO:0004304). Purpose: Detecting structural remodeling across cyanobacterial proteome under conditions mimicking environmental perturbations such as dense light, dense dark, dilute light, and dilute dark. Technique: Thermal Proteome Profiling (TPP). Other details: Labeled with TMT-10, Not-fractionated, 20 plexes (5 dense light, 5 dense dark, 5 dilute light, 5 dilute dark) in total. Data was searched with MS-GF+ using PNNL's DMS Processing pipeline.
DOI: 10.15468/dl.w7g77z
title: Occurrence Download

description: A dataset listing the 4098430 species recorded in GBIF matching the query:
{
 "OccurrenceStatus" : [
 "is Present"
 ]
}

 The dataset's 4098430 records were derived from 77725 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0034210-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.mtzsjd
title: Occurrence Download

description: A dataset containing 58860 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Aves",
 "Geometry POLYGON((93 27, 95 27, 95 28, 93 28, 93 27))",
 "HasCoordinate is true"
 ]
}

 The dataset includes 58860 records from 20 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0034175-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5dnjse
title: Occurrence Download

description: A dataset containing 1109356 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is one of (Belgium, Germany, Netherlands)",
 "TaxonKey is one of (Ondatra zibethicus, Myocastor coypus)",
 "OccurrenceStatus is Present"
 ]
}

 The dataset includes 1109356 records from 79 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0034212-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.34740/kaggle/dsv/13736957
title: Peer-to-Peer Boliviano (BOB) Exchange Data
DOI: 10.6084/m9.figshare.30625484
title: Fresh weight of western honey bees emerged from larvae fed different diets.

description: Key to variable names & types:colony -- colony ID (categorical)plate -- test plate ID (categorical)number -- larva ID (categorical)treatment -- diet type (categorical)fresh -- fresh weight (g) (numerical)