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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,742 papers · 148 categories

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1223 · Apr 201919922001200920172026
48 results for fertility

The article presents a new non-parametric approach for forecasting mortality and fertility using Gaussian process regression.

problem Precise forecasting of demographic movements in developed countries.
method Gaussian process regression with natural cubic spline and spectral mixture covariance functions.
result The approach shows significant improvements in forecasting precision and robustness.

Data mining involves the systematic analysis of large data sets, and data mining in agricultural soil datasets is exciting and modern research area. The productive capacity of a soil depends on soil fertility. Achieving and maintaining appropriate levels of soil fertility, is of utmost importance if agricultural land i…

2012-08-20abs ↗pdf ↗

In this paper, we introduce a new type of relation between knots called the descendant relation. One knot HH is a descendant of another knot KK if HH can be obtained from a minimal crossing diagram of KK by some number of crossing changes. We explore properties of the descendant relation and study how certain knots…

2017-05-24abs ↗pdf ↗

Develops adaptive algorithms for sustainable fertilizer use in agriculture.

problem Sustaining high yields while reducing environmental impacts of fertilizer use.
method Nonlinear model-based bandit algorithms linking biological processes to decision-making.
result Faster learning and higher profits with interpretable recommendations.

The paper studies vector bundles over surfaces, focusing on singularity formation.

problem Understanding singularity formation in rank two holomorphic vector bundles over surfaces.
method Defining fertile families bearing bubbles and using elementary modifications to prove their existence.
result Existence of fertile families bearing bubbles for certain types of vector bundles.

SAGDA generates synthetic agricultural datasets to improve ML in African farming.

problem Data scarcity in African agriculture limits machine learning innovations.
method SAGDA is an open-source Python toolkit that generates, augments, and validates synthetic agricultural datasets.
result SAGDA enhances ML applications in agriculture, such as yield prediction and fertilizer recommendation.

Econophysics embodies the recent upsurge of interest by physicists into financial economics, driven by the availability of large amount of data, job shortage in physics and the possibility of applying many-body techniques developed in statistical and theoretical physics to the understanding of the self-organizing econo…

2008-02-11abs ↗pdf ↗

This paper reviews deep learning and knowledge-based methods for molecular design.

problem Optimizing molecular properties for scientific advances and process performance.
method Survey of deep learning and knowledge-based methods for molecular design.
result Deep learning models show promise in overcoming computational challenges.

Improved prediction of soil parameters using Multi-target Stacked Generalisation on EDXRF spectra.

problem Challenges in predicting multiple soil parameters accurately from EDXRF spectra.
method Multi-target Stacked Generalisation (MTSG) method combining multiple regression models.
result MTSG significantly improved prediction accuracy for multiple soil parameters, reducing average error from 0.67 to 0.64.

This paper focuses on a class of linear Hawkes processes with general immigrants. These are counting processes with shot noise intensity, including self-excited and externally excited patterns. For such processes, we introduce the concept of age pyramid which evolves according to immigration and births. The virtue if t…

2015-04-24abs ↗pdf ↗

We introduce a program aimed to studying problems arising from the theory of complex networks with differential geometric means. We study the propagation of influences on manifolds assuming that at each point only a finite number of propagation velocities are allowed. This leads to the computation of the volume of the …

2015-07-03abs ↗pdf ↗

Given the recent surge in developments of deep learning, this article provides a review of the state-of-the-art deep learning techniques for audio signal processing. Speech, music, and environmental sound processing are considered side-by-side, in order to point out similarities and differences between the domains, hig…

2019-04-30abs ↗pdf ↗

Aggregated data is commonplace in areas such as epidemiology and demography. For example, census data for a population is usually given as averages defined over time periods or spatial resolutions (cities, regions or countries). In this paper, we present a novel multi-task learning model based on Gaussian processes for…

2019-06-22abs ↗pdf ↗

Self-supervised learning helps train deep features without needing lots of labeled data.

problem Annotation bottleneck in deep learning.
method Four main families of self-supervised approaches applied to various data modalities.
result Self-supervised methods can now rival fully supervised pre-training across multiple data types.

New method for reducing dimensions of distributional data.

problem Nonlinear sufficient dimension reduction for distribution-on-distribution regression.
method Building universal kernels on metric spaces to characterize conditional independence.
result Method outperforms competing methods in synthetic and real data applications.

In 1995 the author, Jones, and Segal introduced the notion of "Floer homotopy theory". The proposal was to attach a (stable) homotopy type to the geometric data given in a version of Floer homology. More to the point, the question was asked, "When is the Floer homology isomorphic to the (singular) homology of a natural…

2019-01-24abs ↗pdf ↗

Applications of Quantum Tunneling effect have long gone beyond the traditional physical meaning. Initially created by Gamow to explain α-decay of nuclear particles, along the time, quantum tunneling found fertile domain of research in chemistry and recently in biology, where the new discipline of Quantum Biology emerge…

2013-07-25abs ↗pdf ↗

The restricted Boltzmann machine (RBM) is one of the fundamental building blocks of deep learning. RBM finds wide applications in dimensional reduction, feature extraction, and recommender systems via modeling the probability distributions of a variety of input data including natural images, speech signals, and custome…

2017-01-17abs ↗pdf ↗

Novel financial time-series data representation improves industry sector classification.

problem Classifying industries using historical stock returns time-series data.
method Proposed a novel representation based on stock returns embeddings for time-series data, overcoming representational challenges of conventional approaches.
result Substantial performance improvements over baselines using conventional representations.

Survey on risk-aware multi-armed bandits for better decision-making.

problem Risk measures in multi-armed bandits for better decision-making.
method Review of existing research, definition of risk-aware bandit problems, and algorithms for minimizing regret and identifying best arms.
result Consolidation and summarization of existing research on risk measures in multi-armed bandits.

LSTM model predicts stock prices with high accuracy in stable sectors but struggles with volatile ones.

problem Predicting stock prices in emerging markets with limited data.
method Developed and evaluated an LSTM network on historical OHLCV data and technical indicators.
result Strong predictive performance (R2>0.87R^2 > 0.87) for stable sectors, but challenges for volatile ones.

The stochastic block model (SBM) is a random graph model with different group of vertices connecting differently. It is widely employed as a canonical model to study clustering and community detection, and provides a fertile ground to study the information-theoretic and computational tradeoffs that arise in combinatori…

2017-03-29abs ↗pdf ↗

This study predicts ovarian cancer from cysts using TVUS and machine learning.

problem Early detection of ovarian cancer from cysts using TVUS screening.
method Employed Random Forest, KNN, and XGBoost machine learning techniques on PLCO dataset.
result Achieved high accuracy, recall, f1 score, and precision in predicting ovarian cancer.

This paper reviews bank performance determinants, highlighting future research areas.

problem Understanding bank performance factors to improve sector efficiency and knowledge.
method Analysis of 54 studies in peer-reviewed journals.
result Bank performance factors remain largely unexplored, especially post-COVID-19.