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🔍 yang liu 📂 Computer Science
Showing 2418 results for "yang liu" in Computer Science
Computer Science Preprint PDF DOI

FlashRT: Towards Computationally and Memory Efficient Red-Teaming for Prompt Injection and Knowledge Corruption

Yanting Wang, Chenlong Yin, Ying Chen, Jinyuan Jia · 2026

Long-context large language models (LLMs)-for example, Gemini-3.1-Pro and Qwen-3.5-are widely used to empower many real-world applications, such as retrieval-augmented generation, autonomous agents, a…

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Computer Science Preprint PDF DOI

LATTICE: Evaluating Decision Support Utility of Crypto Agents

Aaron Chan, Tengfei Li, Tianyi Xiao, Angela Chen, Junyi Du, Xiang Ren · 2026

We introduce LATTICE, a benchmark for evaluating the decision support utility of crypto agents in realistic user-facing scenarios. Prior crypto agent benchmarks mainly focus on reasoning-based or outc…

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Computer Science Preprint PDF DOI

Layerwise Convergence Fingerprints for Runtime Misbehavior Detection in Large Language Models

Nay Myat Min, Long H. Pham, Jun Sun · 2026

Large language models deployed at runtime can misbehave in ways that clean-data validation cannot anticipate: training-time backdoors lie dormant until triggered, jailbreaks subvert safety alignment, …

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Computer Science Preprint PDF DOI

Ablation and the Meno: Tools for Empirical Metamathematics

Zhengqin Fan, Simon DeDeo · 2026

We present the results from Meno, a simple autoformalizer that proves theorems in Lean by systematically exploring the space of both formal and informal proofs, and tactic ablation, a new method for e…

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Computer Science Preprint PDF DOI

Coordinatewise Balanced Covering for Linear Gain Graphs, with an Application to Coset-List Min-2-Lin over Powers of Two

Faruk Alpay, Levent Sarioglu · 2026

We study a list-constrained extension of modular equation deletion over powers of two, called Coset-List Min-2-Lin$^{\pm}$ over $\mathbb{Z}/2^d\mathbb{Z}$. Each variable is restricted to a dyadic cose…

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Computer Science Preprint PDF DOI

Peeling Rotten Potatoes for a Faster Approximation of Convex Cover

Omrit Filtser, Tzalik Maimon, Ofir Yomtovyan · 2026

The minimum convex cover problem seeks to cover a polygon $P$ with the fewest convex polygons that lie within $P$. This problem is $\exists\mathbb R$-complete, and the best previously known algorithm,…

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Computer Science Preprint PDF DOI

Strategic Facility Location with Limited Liars

Yue Gruszecki, Elliot Anshelevich · 2026

We study Nash equilibria in strategic facility location games where clients are located in an arbitrary metric space. Specifically, there are $n$ clients, and the goal is to choose a facility from a s…

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Computer Science Preprint PDF DOI

EquivFusion: Unifying Hardware Equivalence Checking from Algorithms to Netlists via MLIR

Jiaying Zhu, Baoqi Zhang, Mengxia Tao, Kezhi Li, Hao Yan, Qiang Xu, Min Li · 2026

Ensuring functional consistency between high-level algorithmic models and low-level hardware implementations is a critical challenge, particularly as modern design flows increasingly span heterogeneou…

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Computer Science Preprint PDF DOI

The Parameterized Complexity of Coloring Mixed Graphs

Antonio Lauerbach, Konstanty Junosza-Szaniawski, Marie Diana Sieper, Alexander Wolff · 2026

A mixed graph contains (undirected) edges as well as (directed) arcs, thus generalizing undirected and directed graphs. A proper coloring $c$ of a mixed graph $G$ assigns a positive integer to each ve…

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Computer Science Preprint PDF DOI

Efficient Fuzzy Private Set Intersection from Secret-shared OPRF

Xinpeng Yang, Meng Hao, Chenkai Weng, Robert H. Deng, Yonggang Wen, Tianwei Zhang · 2026

Private set intersection (PSI) enables a sender holding a set $Q$ of size $m$ and a receiver holding a set $W$ of size $n$ to securely compute the intersection $Q \cap W$. Fuzzy PSI (FPSI) is a PSI va…

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Computer Science Preprint PDF DOI

Parallel Algorithms for Group Isomorphism via Code Equivalence

Michael Levet · 2026

In this paper, we exhibit $\textsf{AC}^{3}$ isomorphism tests for coprime extensions $H \ltimes N$ where $H$ is elementary Abelian and $N$ is Abelian; and groups where $\text{Rad}(G) = Z(G)$ is elemen…

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Computer Science Preprint PDF DOI

Hyper Separation Logic (extended version)

Trayan Gospodinov, Peter Muller, Thibault Dardinier · 2026

Many important functional and security properties--including non-interference, determinism, and generalized non-interference (GNI)--are hyperproperties, i.e., properties relating multiple executions o…

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Computer Science Preprint PDF DOI

SpanKey: Dynamic Key Space Conditioning for Neural Network Access Control

WenBin Yan · 2026

SpanKey is a lightweight way to gate inference without encrypting weights or chasing leaderboard accuracy on gated inference. The idea is to condition activations on secret keys. A basis matrix $B$ de…

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Computer Science Preprint PDF DOI

Faster Approximate Linear Matroid Intersection

Tatsuya Terao · 2026

We consider a fast approximation algorithm for the linear matroid intersection problem. In this problem, we are given two $r \times n$ matrices $M_1$ and $M_2$, and the objective is to find a largest …

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Computer Science Preprint PDF DOI

The Unified Field Theory of Phygital Space

Silvio Meira · 2026

This paper proposes a Unified Field Theory of Phygital Space, positing that contemporary reality is not a dichotomy of "online" and "offline," but a unified ontological manifold of irreducible but cou…

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Computer Science Preprint PDF DOI

Edge-Tilting Field Dynamics: Rapid Mixing at the Uniqueness Threshold and Optimal Mixing for Swendsen-Wang Dynamics

Xiaoyu Chen, Zhe Ju, Tianshun Miao, Yitong Yin, Xinyuan Zhang · 2026

We prove two results on the mixing times of Markov chains for two-spin systems. First, we show that the Glauber dynamics mixes in polynomial time for the Gibbs distributions of antiferromagnetic two-s…

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Computer Science Preprint PDF DOI

Robust Single- and Multi-Pinching Antenna Systems Under User Location Uncertainty

Hao Feng, Ebrahim Bedeer, Ming Zeng, Xingwang Li, Wanming Hao, Dingzhu Wen · 2026

Pinching antenna (PA) systems have recently emerged as a promising architecture for reconfigurable wireless communications by enabling flexible antenna placement along a dielectric waveguide. However,…

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Computer Science Preprint PDF DOI

A 0.5-V Linear Neuromorphic Voltage-to-Spike Encoder Using a Bulk-Driven Transconductor

Meysam Akbari, Erika Covi, Kea-Tiong Tang · 2026

This work introduces an ultralow-power voltage-to-spike encoder that achieves near-linear voltage-to-firing-rate conversion by pairing a linearized bulk-driven transconductor with a DPI-based LIF neur…

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Computer Science Preprint PDF DOI

Scheming in the wild: detecting real-world AI scheming incidents with open-source intelligence

Tommy Shaffer Shane, Simon Mylius, Hamish Hobbs · 2026

Scheming, the covert pursuit of misaligned goals by AI systems, represents a potentially catastrophic risk, yet scheming research suffers from significant limitations. In particular, scheming evaluati…

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Computer Science Preprint PDF DOI

Optimal Single-Pass Streaming Lower Bounds for Approximating CSPs

Noah G. Singer, Madhur Tulsiani, Santhoshini Velusamy · 2026

For an arbitrary family of predicates $\mathcal{F} \subseteq \{0,1\}^{[q]^k}$ and any $\epsilon > 0$, we prove a single-pass, linear-space streaming lower bound against the gap promise problem of dist…

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