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๐Ÿ” yi liu ๐Ÿ“‚ Computer Science
Showing 1603 results for "yi liu" in Computer Science
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 ยท 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 outcโ€ฆ

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Layerwise Convergence Fingerprints for Runtime Misbehavior Detection in Large Language Models

Nay Myat Min, Long H. Pham, Jun Sun ยท 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, โ€ฆ

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Ablation and the Meno: Tools for Empirical Metamathematics

Zhengqin Fan, Simon DeDeo ยท 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 eโ€ฆ

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

Faruk Alpay, Levent Sarioglu ยท 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 coseโ€ฆ

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Peeling Rotten Potatoes for a Faster Approximation of Convex Cover

Omrit Filtser, Tzalik Maimon, Ofir Yomtovyan ยท 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,โ€ฆ

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Strategic Facility Location with Limited Liars

Yue Gruszecki, Elliot Anshelevich ยท 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 sโ€ฆ

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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 ยท 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 heterogeneouโ€ฆ

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The Parameterized Complexity of Coloring Mixed Graphs

Antonio Lauerbach, Konstanty Junosza-Szaniawski, Marie Diana Sieper, Alexander Wolff ยท 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 veโ€ฆ

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Hyper Separation Logic (extended version)

Trayan Gospodinov, Peter Muller, Thibault Dardinier ยท 2026

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

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SpanKey: Dynamic Key Space Conditioning for Neural Network Access Control

WenBin Yan ยท 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 $B$ deโ€ฆ

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Faster Approximate Linear Matroid Intersection

Tatsuya Terao ยท 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 โ€ฆ

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The Unified Field Theory of Phygital Space

Silvio Meira ยท 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 couโ€ฆ

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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 ยท 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-sโ€ฆ

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

Hao Feng, Ebrahim Bedeer, Ming Zeng, Xingwang Li, Wanming Hao, Dingzhu Wen ยท 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,โ€ฆ

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

Meysam Akbari, Erika Covi, Kea-Tiong Tang ยท 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 neurโ€ฆ

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

Tommy Shaffer Shane, Simon Mylius, Hamish Hobbs ยท 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 evaluatiโ€ฆ

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To Copilot and Beyond: 22 AI Systems Developers Want Built

Rudrajit Choudhuri, Christian Bird, Carmen Badea, Anita Sarma ยท 2026

Developers spend roughly one-tenth of their workday writing code, yet most AI tooling targets that fraction. This paper asks what should be built for the rest. We surveyed 860 Microsoft developers to โ€ฆ

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Parameterized algorithms for $k$-Inversion

Dhanyamol Antony, L. Sunil Chandran, Dalu Jacob, R.B. Sandeep ยท 2026

Inversion of a directed graph $D$ with respect to a vertex subset $Y$ is the directed graph obtained from $D$ by reversing the direction of every arc whose endpoints both lie in $Y$. More generally, tโ€ฆ

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Designing Ethical Learning for Agentic AI: Toegye Yi Hwang's Ethical Emotion Regulation Framework

Ji Yeon Kim ยท 2026

Agentic AI systems capable of autonomous goal setting and proactive intervention introduce new challenges for regulating moral-emotional processes in learning environments. Existing frameworks typicalโ€ฆ

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DAG Projections: Reducing Distance and Flow Problems to DAGs

Bernhard Haeupler, Yonggang Jiang, Thatchaphol Saranurak ยท 2026

We show that every directed graph $G$ with $n$ vertices and $m$ edges admits a directed acyclic graph (DAG) with $m^{1+o(1)}$ edges, called a DAG projection, that can either $(1+1/\text{polylog} (n))$โ€ฆ

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