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48 results for Tabu Search

Study proposes ATS algorithm to solve market clearing problem in Turkish day-ahead market.

problem Market clearing problem in Turkish day-ahead electricity market.
method Proposes an adaptive tabu search (ATS) algorithm to solve the problem, discretizing continuous search space and using adaptive radius.
result ATS algorithm performs better than heuristic decomposition method in most synthetic data sets.

HAMD optimizes cubic portfolios without quadratization, achieving better results.

problem Optimizing higher-order portfolio models with reduced distortion.
method Hybrid pipeline combining continuous Hamiltonian search, cardinality-preserving projection, and iterated local search.
result HAMD achieves significantly lower native cubic objective values than classical heuristics.

Tabu Dropout improves performance of standard Dropout by generating more diverse neural network architectures.

problem Preventing co-adaptation of neurons in deep neural networks.
method Integrates a diversification strategy into dropout, marking units from the last forward propagation for re-selection in the current forward propagation.
result Improves performance of standard Dropout on MNIST and Fashion-MNIST datasets.

4 greedy algorithms for approximating dataset diameter efficiently.

problem Finding the diameter of large multidimensional datasets.
method Greedy algorithms based on minimum/maximum l2 norms, hill climbing, Tabu search, and Beam search.
result Efficiency proven through experiments on machine learning datasets.

Optimizes train schedules and maintenance using CP and QA.

problem Optimizing train schedules and maintenance considering constraints.
method Used Constraint Programming and Quantum Annealing to model and solve the problem.
result Both CP and QA approaches produce comparable results on real quantum computers.

We investigate the application of two heuristic methods, genetic algorithms and tabu/scatter search, to the optimisation of realistic portfolios. The model is based on the classical mean-variance approach, but enhanced with floor and ceiling constraints, cardinality constraints and nonlinear transaction costs which inc…

2005-01-04abs ↗pdf ↗

Time-limited metaheuristics find near-optimal solutions for constrained portfolio optimisation.

problem Finding near-optimal solutions for constrained portfolio optimisation within limited computation time.
method Time-limited metaheuristics (simulated annealing, tabu search, genetic algorithm) tested on historical market data.
result Simulated annealing found near-optimal solutions in 5 seconds across most datasets.

GraSP-RL uses graph neural networks to improve job shop scheduling.

problem Capturing machine-unit-job sequence relationships and managing state space growth.
method Graph neural networks for feature extraction, reinforcement learning for decision-making, decentralized optimization.
result GraSP-RL outperforms existing methods in minimizing makespan for complex production environments.

A new language for neural architecture search decouples search spaces and algorithms.

problem Current neural architecture search methods are limited to specific use-cases and lack general-purpose constructs.
method Proposes a formal language for encoding search spaces over general computational graphs, allowing modular, composable, and reusable encodings.
result The language enables easy experimentation with different search spaces and algorithms without reinventing the wheel.

This paper compares Grid Search, Random Search, and Genetic Algorithm for NAS.

problem Hyperparameter optimization for neural architecture search.
method Comparison of Grid Search, Random Search, and Genetic Algorithm.
result Genetic Algorithm outperforms Grid Search and Random Search in terms of accuracy and execution time.

Efficient search methods can outperform random search on challenging tasks.

problem Comparing the performance of efficient and random search methods in neural architecture search.
method Comparison of weight sharing and random search methods on progressively larger search spaces for image classification and detection.
result Efficient search methods can provide substantial gains over random search on large, realistic tasks.

A new framework generates large hierarchical search spaces for neural architectures.

problem Discovering neural architectures from simple blocks is hard.
method Context-free grammars for a unified, scalable search space.
result Efficiently searches over complete architectures, outperforming existing methods.

This work recommends personalized search stories to users based on their interests.

problem Personalized search story recommendation within search engines.
method Deep reinforcement learning architecture trained by imitation learning and reinforcement learning.
result Empirically demonstrated effectiveness on real-world data sets.

New agent learns from previous search spaces to improve NAS efficiency.

problem NAS requires restarting learning from scratch between different search spaces.
method Transformer-based agent for joint training and knowledge transfer.
result Efficient knowledge transfer between search spaces improves NAS performance.

PGS uses neural networks to improve policies online without search trees.

problem Limited scalability of Monte Carlo Tree Search (MCTS) for high branching factor games.
method Adapts a neural network simulation policy via policy gradient updates, avoiding search trees.
result PGS achieves comparable performance to MCTS and defeats strong Hex agents.

Approaches to learning Bayesian networks from data typically combine a scoring function with a heuristic search procedure. Given a Bayesian network structure, many of the scoring functions derived in the literature return a score for the entire equivalence class to which the structure belongs. When using such a scoring…

2013-02-13abs ↗pdf ↗

FiGS searches over a larger space of architectures for efficient mobile models.

problem Designing small, efficient deep networks for mobile devices.
method Differentiable search method using sparse regularization and Logistic-Sigmoid distribution.
result FiGS produces state-of-the-art parameter-efficient models on ImageNet and improves object detection performance.

This work proposes searching for optimal operation distribution in neural architecture search.

problem Finding optimal neural architecture with specific operations and connections.
method Search for the optimal operation distribution, providing a stochastic and approximate solution.
result Operation distribution holds enough discriminating power to reliably identify a solution and is easier to optimise than traditional encodings.

CrossBeam learns to search more efficiently in program synthesis.

problem Efficiently searching through vast program spaces.
method Trains a neural model to guide program synthesis, combining previously explored programs.
result CrossBeam explores much smaller portions of the program space compared to state-of-the-art methods.

Deep-n-Cheap automates deep learning model search for low complexity.

problem Finding efficient deep learning models for various datasets.
method Automated search framework for architecture and hyperparameters, including search transfer.
result Models offer comparable performance to state-of-the-art but are faster to train.

Graph-based NAS improves sample efficiency in architecture design.

problem Current NAS search spaces are static sequences, limiting expressiveness.
method Proposed graph-based search space with vertices and edges for iterative and branching decisions.
result Graph representation improves sample efficiency in architecture design.

Random search outperforms leading NAS methods in neural architecture search.

problem Improving the reproducibility and efficiency of neural architecture search.
method Proposed random search with early-stopping and weight-sharing as NAS baselines.
result Random search with weight-sharing achieves state-of-the-art results on PTB and highly competitive results on CIFAR-10.

einspace expands NAS search space to include diverse neural architectures.

problem NAS results are often limited to existing structures; new designs are rare.
method einspace uses a probabilistic context-free grammar to create a versatile search space.
result einspace discovers novel and improved architectures, including convolutions and attention.

Paper improves full-text search engines for fast exact NNS in binary codes.

problem Efficient nearest neighbor search in Hamming space for full-text search engines.
method Revisits and combines three techniques from information retrieval: bit operation, subs-code filtering, and data preprocessing with permutation.
result Significant speed-ups for NNS in binary codes over state-of-the-art term match approach.

We consider a framework for structured prediction based on search in the space of complete structured outputs. Given a structured input, an output is produced by running a time-bounded search procedure guided by a learned cost function, and then returning the least cost output uncovered during the search. This framewor…

2012-06-27abs ↗pdf ↗

Method predicts disease outbreaks using search logs, overcoming instability.

problem Predicting disease outbreaks from search logs is challenging due to short-term and long-term instability.
method Seasonal-adjustment method decomposes logs into seasonal, trend, and irregular components; feature selection method selects relevant search terms.
result Proposed method outperforms comparative methods in prediction accuracy for seven of ten diseases.

UNAS combines DNAS and RL for efficient architecture search.

problem Discovering high accuracy or low latency neural architectures.
method Unified framework combining differentiable and reinforcement learning approaches.
result UNAS achieves state-of-the-art accuracy on CIFAR-10, CIFAR-100, and ImageNet datasets.

Efficient neural architecture search by sampling structure and operations.

problem Efficiently searching for optimal neural architectures.
method Decouples structure and operation search, using reinforcement learning with policy vectors.
result Significantly improved efficiency compared to traditional methods.

SNAS efficiently searches neural architectures using stochastic optimization.

problem Efficiently searching for optimal neural architectures.
method SNAS trains parameters of both neural operations and architecture distribution in a single round of backpropagation, using a novel search gradient and locally decomposable rewards.
result SNAS achieves state-of-the-art accuracy with fewer training epochs compared to other NAS methods.

Paper tackles NAS problem by modeling it as a sparse supernet.

problem Neural Architecture Search (NAS) problem, particularly Mixed-Path Search.
method Model NAS as a sparse supernet with sparsity constraints. Use hierarchical accelerated proximal gradient algorithm for optimization.
result Proposed method finds compact, general, and powerful neural architectures.

Bonsai-Net efficiently discovers state-of-the-art models with fewer parameters.

problem Efficiently discovering state-of-the-art neural architectures with minimal computational expense.
method Bonsai-Net uses a modified differential pruner to explore a relaxed search space.
result Bonsai-Net consistently discovers better architectures than random search with fewer parameters.

New method speeds up k-means clustering for large k by improving nearest-neighbor search.

problem Efficiently clustering large datasets with high-dimensional points.
method Seeded Approximate Nearest-Neighbor Search methods to improve Lloyd's algorithm.
result Significantly faster k-means clustering for large k values.

TGLS generates text by optimizing search results and learning from them.

problem Unsupervised text generation without explicit training data.
method TGLS uses simulated annealing to estimate sentence quality, then a conditional generative model learns from search results.
result TGLS outperforms unsupervised baselines and matches state-of-the-art supervised methods in paraphrase generation.

The study finds that Chinese internet users have different search behaviors and attention patterns.

problem Heterogeneity in search behavior and attention among Chinese internet users.
method Data extraction technology to analyze Baidu Index keyword search volume data.
result Chinese internet users exhibit different search behaviors and attention patterns.