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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.

169,341 papers · 148 categories

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48 results for short-text classification

Paper introduces a new text clustering model using Beta-Liouville priors.

problem Clustering short text data.
method Develops a hierarchical mixture model with Beta-Liouville priors for short text clustering.
result The Beta-Liouville distribution offers a more flexible correlation structure for short text clustering.

POTA improves short text clustering by generating reliable pseudo-labels.

problem Limited discriminative representations in short texts.
method POTA uses instance-level attention and optimal transport for semantic consistency and cluster structure.
result POTA outperforms state-of-the-art methods in short text clustering.

AOBTM adapts online topic modeling for short app reviews, revealing coherent topics over time.

problem Challenges in inferring latent topics from short, dynamic app reviews over multiple versions.
method Adaptive Online Biterm Topic Model (AOBTM) that addresses sparsity and considers statistical data from previous versions.
result AOBTM finds more coherent topics and outperforms state-of-the-art baselines.

Paper improves short text clustering by integrating semantic relationships into Optimal Transport.

problem Erroneous pseudo-labels caused by neglecting semantic consistency in existing OT methods.
method Designs an instance-level attention mechanism to capture semantic relationships and integrates them into the OT formulation.
result Generates reliable pseudo-labels that improve clustering accuracy.

Study examines how cluster number affects short-text clustering, introducing a stability metric.

problem Challenges in finding meaningful clusters in short-text data.
method Introduces a stability metric to determine cluster robustness and visualizes cluster subdivisions.
result Choosing a cluster number involves balancing informativeness and complexity, not seeking a single 'optimal' solution.

Deep-learning model detects personality traits from short texts across multiple languages.

problem Recognizing author personality traits from short texts.
method Uses deep-learning-based models and atomic features of text to build hierarchical, vectorial word and sentence representations.
result Shows state-of-the-art performance across five traits and three languages (English, Spanish, and Italian).

This research creates and classifies datasets for Setswana and Sepedi news headlines.

problem Challenges in creating and preparing datasets for low-resourced languages.
method Investigates an approach for data augmentation tailored to low resource languages.
result Improves classification performance on news topic classification task.

The increasing volume of short texts generated on social media sites, such as Twitter or Facebook, creates a great demand for effective and efficient topic modeling approaches. While latent Dirichlet allocation (LDA) can be applied, it is not optimal due to its weakness in handling short texts with fast-changing topics…

2013-01-24abs ↗pdf ↗

This paper predicts legal proceedings status using NLP and machine learning.

problem Classify Brazilian legal proceedings into archived, active, and suspended categories.
method Combined NLP techniques with machine learning to classify legal proceedings sequences.
result Achieved maximum accuracy of 93% and top average F1 Scores of 89% (macro) and 93% (weighted).

A new method for semi-supervised text classification using layer partitioning.

problem Adapting neural semi-supervised learning to discrete text inputs.
method Decompose neural network into feature extractor FF and update layer UU for training. Use dropout for systematic noise.
result Improves text classification especially on short texts compared to state-of-the-art methods.

Method selects optimal source domain for better cross-domain sentiment classification.

problem Improving sentiment classification on unseen domains with limited labeled data.
method Predictive measure based on distance functions between source and target domains.
result Significant improvement in cross-domain classification error compared to random selection.

Interactive learning improves real-time tweet classification for situational awareness.

problem Difficulty in identifying relevant tweets from noisy social media data.
method Interactive learning framework that incorporates user feedback in real-time.
result Our approach outperforms state-of-the-art models in real-time tweet classification.

This study improves sentence embeddings from BERT models.

problem Capturing the underlying meaning of sentences using BERT models.
method Comprehensive review and testing of various sentence embedding extraction and refinement methods.
result Representation-shaping techniques significantly improve sentence embeddings from BERT-based and simple baseline models.

Paper introduces new indicators for forecasting crude oil prices using short news headlines.

problem Forecasting crude oil prices from short, noisy news headlines using LDA.
method Developed two novel indicators for topic and sentiment from short text data, and applied AdaBoost.RT.
result AdaBoost.RT with the proposed indicators outperforms benchmarks in crude oil forecasting.

A new neural topic model using optimal transport improves document representation and topic coherence.

problem Challenges in achieving good document representation and coherent/diverse topics in existing NTMs.
method Proposes a neural topic model via optimal transport, learning topic distribution by minimising OT distance to document word distributions.
result Significantly outperforms state-of-the-art NTMs on discovering coherent and diverse topics.

Generative grading improves automated feedback for structured problems.

problem Difficulty in providing high-quality feedback on structured assignments.
method Generative descriptions of student cognition, probabilistic programs, and learning to infer feedback.
result Achieved near-human accuracy in grading and feedback across diverse domains.

GCTM integrates GCN into topic models for better topic learning from data streams.

problem Learning hidden topics from short and noisy data streams with concept drift.
method Proposes a graph convolutional topic model (GCTM) that learns from a knowledge graph and old data.
result Significantly better performance in probabilistic predictive measures and topic coherence.

Dual-stage sEMG classification improves gesture recognition accuracy.

problem Improving accuracy in hand gesture recognition from sEMG signals.
method Dual-stage classification approach: first stage groups similar activities, second stage classifies within groups.
result Dual-stage classification yields significantly higher accuracy than single-stage approach.

A novel method for classification with rejection using ensemble of cost-sensitive classifiers.

problem Avoid risky misclassification in error-critical applications.
method Learning an ensemble of cost-sensitive classifiers.
result Improved classification accuracy and flexibility in loss selection.

The number of possible methods of generalizing binary classification to multi-class classification increases exponentially with the number of class labels. Often, the best method of doing so will be highly problem dependent. Here we present classification software in which the partitioning of multi-class classification…

2014-04-15abs ↗pdf ↗

Few-shot image classification is improved by correcting CNNs' texture bias.

problem Few-shot image classification performance is hindered by CNNs' texture bias.
method Corrected CNNs' texture bias using a simpler method than state-of-the-art approaches.
result State-of-the-art performance on miniImageNet task achieved.

Paper introduces LPCs for robust classification with performance bounds.

problem Conventional classification techniques constrain rules and use surrogate losses.
method Robust risk minimization (RRM) for unconstrained classification rules, optimizing 0-1 loss.
result LPCs provide performance bounds and competitive performance with state-of-the-art techniques.

New NHCAs improve multi-category classification efficiency.

problem Efficient multi-category classification for real-world problems.
method Twin SVM (TWSVM), Generalized eigenvalue proximal SVM (GEPSVM), Regularized GEPSVM (RegGEPSVM), and Improved GEPSVM (IGEPSVM) with OAA, BT, and TDS approaches.
result TDS-TWSVM outperforms other methods in classification accuracy.

Develops algorithms for constructing statistical industry classifications.

problem Creating accurate industry classifications for quantitative trading.
method Combines clustering algorithms with correlation analysis to improve fundamental industry classifications.
result Shows that clustering methods improve off-the-shelf industry classifications.

Deep reinforcement learning improves classification accuracy for imbalanced datasets.

problem Imbalanced datasets challenge conventional classification algorithms.
method Formulated as a sequential decision-making process, solved using deep Q-learning network.
result Proposed model outperforms other imbalanced classification algorithms.

Classifies Lie algebra realizations by vector fields.

problem Classifying Lie algebra realizations by vector fields.
method Generalized correspondence between classification of transitive local realizations and subalgebras, formulated a reasonable classification problem, presented an algorithm for construction.
result Algorithm for constructing classification of general realizations.

Classification outperforms regression in portfolio construction, yielding higher Sharpe ratios.

problem Determining which machine learning approach (classification vs. regression) is more effective for portfolio construction.
method Used stacking ensemble of gradient boosted tree, random forest, and neural network models.
result Classification yields higher Sharpe ratios and economically significant alphas compared to regression.

C-HMCNN(h) improves HMC classification by leveraging class hierarchy.

problem Hierarchical multi-label classification with class hierarchy constraints.
method Exploits class hierarchy to produce coherent predictions for multi-label classification.
result C-HMCNN(h) outperforms state-of-the-art models in HMC classification.