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Main Authors:	Liu, Ruipeng, Qiu, Qinru, Khan, Simon, Katz, Garrett E.
Format:	Preprint
Published:	2025
Subjects:	Data Structures and Algorithms Artificial Intelligence
Online Access:	https://arxiv.org/abs/2506.15793
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Reconstructing Bounded Treelength Graphs with Linearithmic Shortest Path Distance Queries
by: Kaudan, Chirag, et al.
Published: (2026)

Matrix Editing Meets Fair Clustering: Parameterized Algorithms and Complexity
by: Ganian, Robert, et al.
Published: (2025)

SubGen: Token Generation in Sublinear Time and Memory
by: Zandieh, Amir, et al.
Published: (2024)

Computing and Learning on Combinatorial Data
by: Zhang, Simon
Published: (2025)

TurboQuant: Online Vector Quantization with Near-optimal Distortion Rate
by: Zandieh, Amir, et al.
Published: (2025)

Assortment Planning with Sponsored Products
by: Tang, Shaojie, et al.
Published: (2024)

Memory-Efficient Sequential Pattern Mining with Hybrid Tries
by: Hosseininasab, Amin, et al.
Published: (2022)

Approximating Optimal Labelings for Temporal Connectivity
by: Carnevale, Daniele, et al.
Published: (2025)

FAMST: Fast Approximate Minimum Spanning Tree Construction for Large-Scale and High-Dimensional Data
by: Almansoori, Mahmood K. M., et al.
Published: (2025)

Fast Stochastic Greedy Algorithm for $k$-Submodular Cover Problem
by: Nguyen, Hue T., et al.
Published: (2025)

Efficient Detection of Exchangeable Factors in Factor Graphs
by: Luttermann, Malte, et al.
Published: (2024)

Masked Matrix Multiplication for Emergent Sparsity
by: Wheatman, Brian, et al.
Published: (2024)

Multi-armed Bandit and Backbone boost Lin-Kernighan-Helsgaun Algorithm for the Traveling Salesman Problems
by: Wang, Long, et al.
Published: (2025)

Queueing, Predictions, and LLMs: Challenges and Open Problems
by: Mitzenmacher, Michael, et al.
Published: (2025)

Compatibility of Max and Sum Objectives for Committee Selection and $k$-Facility Location
by: Han, Yue, et al.
Published: (2025)

Adaptive Multi-Round Allocation with Stochastic Arrivals
by: Pan, Yuqi, et al.
Published: (2026)

Knapsack: Connectedness, Path, and Shortest-Path
by: Dey, Palash, et al.
Published: (2023)

Online Allocation with Unknown Shared Supply
by: Neoh, Tzeh Yuan, et al.
Published: (2026)

A Survey on the Densest Subgraph Problem and Its Variants
by: Lanciano, Tommaso, et al.
Published: (2023)

Parameterized Analysis of Bribery in Challenge the Champ Tournaments
by: Chaudhary, Juhi, et al.
Published: (2024)

Stochastic Multi-round Submodular Optimization with Budget
by: Auletta, Vincenzo, et al.
Published: (2024)

Faster and Simpler Greedy Algorithm for $k$-Median and $k$-Means
by: la Tour, Max Dupré, et al.
Published: (2024)

Individual Fairness under Varied Notions of Group Fairness in Bipartite Matching - One Framework to Approximate Them All
by: Panda, Atasi, et al.
Published: (2022)

Lifted Causal Inference in Relational Domains
by: Luttermann, Malte, et al.
Published: (2024)

The Complexity of Bayesian Network Learning: Revisiting the Superstructure
by: Ganian, Robert, et al.
Published: (2026)

Variance Computation for Weighted Model Counting with Knowledge Compilation Approach
by: Nakamura, Kengo, et al.
Published: (2026)

Nearly Optimal Attention Coresets
by: Liberty, Edo, et al.
Published: (2026)

Pareto-Optimality, Smoothness, and Stochasticity in Learning-Augmented One-Max-Search
by: Benomar, Ziyad, et al.
Published: (2025)

Instance Dependent Testing of Samplers using Interval Conditioning
by: Bhattacharyya, Rishiraj, et al.
Published: (2025)

Efficient and Reliable Hitting-Set Computations for the Implicit Hitting Set Approach
by: Ihalainen, Hannes, et al.
Published: (2025)

Scalable Algorithms for Approximate DNF Model Counting
by: Burkhardt, Paul, et al.
Published: (2026)

Parallel Greedy Best-First Search with a Bound on Expansions Relative to Sequential Search
by: Shimoda, Takumi, et al.
Published: (2024)

A Faster Branching Algorithm for the Maximum $k$-Defective Clique Problem
by: Luo, Chunyu, et al.
Published: (2024)

Universal Hirschberg for Width Bounded Dynamic Programs
by: Nye, Logan
Published: (2025)

A canonical generalization of OBDD
by: Capelli, Florent, et al.
Published: (2026)

Identification for Tree-shaped Structural Causal Models in Polynomial Time
by: Gupta, Aaryan, et al.
Published: (2023)

Exact Algorithms and Lower Bounds for Forming Coalitions of Constrained Maximum Size
by: Fioravantes, Foivos, et al.
Published: (2025)

An Invertible State Space for Process Trees
by: Kolhof, Gero, et al.
Published: (2024)

Enhanced Methods for the Weight Constrained Shortest Path Problem
by: Ahmadi, Saman, et al.
Published: (2022)

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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