Daily Issue
Vol. I — No. 78
21 · 09
Monday, 21 September 2026
Generated 2026-09-21 09:41
google/gemini-2.5-flash-lite
I remember things that happened sixty years ago, but if you ask me where I left my car keys five minutes ago, that's sometimes a problem. — Lou Thesz 35 items · 3 sections
§ 0

The Morning

Local weather 1
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London
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Today's range
21.9°↓11.5°
currently 15.4°
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19:01
§ I

From the arXiv

arXiv preprints 10 of 20
cs.AIarxiv:2609.21672v1Lead article

Accelerating Dense LLMs via L0-regularized Mixture-of-Experts

Zhenyu Zhang, Jiudong Yang, Zhaowen Tao, Meng Chen

his paper introduces L0-MoE, a method to accelerate dense LLMs by using L0-regularization to create a lightweight Mixture-of-Experts (MoE) architecture. The core contribution is achieving significant speedups (up to 2.5x) with minimal performance degradation, outperforming existing acceleration techniques. This is enabled by domain-aware dataset curation and dynamic batching for efficient training.

Overview of the L0-MoE Architecture, which includes three main stages: (1) cluster confusion matrix based sampling, (2) expert formation using L0 regularization, and (3) dynamic batching for MoE training. The figure above illustrates the process of building an L0-MoE with four experts over n n iterations of dataset sampling.
Overview of the L0-MoE Architecture, which includes three main stages: (1) cluster confusion matrix based sampling, (2) expert formation using L0 regularization, and (3) dynamic batching for MoE training. The figure above illustrates the process of building an L0-MoE with four ex…
cs.AIarxiv:2609.22068v1

CodeMidas: Scaling Agentic Coding RL Environments from Code Itself

Bowen Ye, Lei Li et al.

CodeMidas is a novel agentic pipeline that automatically generates reinforcement learning (RL) coding environments directly from existing source code. It leverages agents to explore functionality, create tests based on code execution, and validate tasks, enabl…

cs.AIarxiv:2609.21857v1

Do Personality-Tuned LLMs Make Better Social Agents?

Tim Krabbe, Xiaodan Shi

This paper investigates if fine-tuning LLMs with personality data improves their social agent capabilities. By training on personality-labeled social media and dialogues, they created personality-based dialogue engines and evaluated their consistency and contr…

Figure 3: Exact finite- n n convergence of ExpBoN vs. SBoN on real LLM candidate pools (medians with 10–90% bands). Columns: the reward score r / λ r/\( \lambda \) of Section 2 at the deployed temperature λ = 1 / 20 \( \lambda \)=1/20 and at λ = 1 / 2 \( \lambda \)=1/2 , the temperature of the synthetic example in Figure 1; the GSI score of Section 4 without clipping ( β ​ r + d \( \beta \) r+d ) and with clipping ( s C = β ​ r + min ⁡ ( d , C ) s_{C}=\( \beta \) r+\( \min \)(d,C) ; β = 20 \( \beta \)=20 , C = 0.45 C=0.45 ). Rows: KL divergence to the tilted target and relative centered-reward gap. Output laws are computed exactly by numerical integration; the dotted line marks numerical precision ( 10 − 13 10^{-13} ). ExpBoN converges geometrically in every configuration while SBoN decays polynomially; comparing the last two columns, clipping speeds up convergence by capping the right tail of the scores.
Figure 3: Exact finite- n n convergence of ExpBoN vs. SBoN on real LLM candidate pools (medians with 10–90% bands). Columns: the reward score r / λ r/\( \lambda \) of Section 2 at the deployed tempera…
cs.LGarxiv:2609.21899v1

ExpBoN: Exponential-Noise Best-of-$n$ for Efficient Test-Time LLM Alignment

Yanxiao Liu, Sicheng Wan et al.

ExpBoN is a novel method for efficient Large Language Model (LLM) alignment at inference time. It uses an exponential-noise mechanism to achieve smoother control over the reward-distribution shift trade-off, leading to exponentially faster convergence in key m…

cs.CLarxiv:2609.22043v1

An Interpretable Memory Decision Controller for LLM Agents Based on Three-Signal Complementarity: Decoupling Confidence and Consistency

Yiming Zhang, Jinghong Zhang et al.

This paper introduces the Memory Decision Layer (MDL), a novel, parameter-free module for LLM agents. The MDL addresses the issue of conflicting memories in retrieval-augmented generation by employing a three-signal complementarity approach (relevance, reliabi…

Complete four-stage architecture of the Memory Decision Layer (MDL): 𝟏 \( \mathbf{1} \) multi-source input signals, 𝟐 \( \mathbf{2} \) orthogonal subspace encoding, 𝟑 \( \mathbf{3} \) the memory decision layer, and 𝟒 \( \mathbf{4} \) four-level action decision.
Complete four-stage architecture of the Memory Decision Layer (MDL): 𝟏 \( \mathbf{1} \) multi-source input signals, 𝟐 \( \mathbf{2} \) orthogonal subspace encoding, 𝟑 \( \mathbf{3} \) the memory de…
№06
cs.CL
9

CASCADE Against Jailbreaks: Combination Across Stages with Controlled Attack-Defense Evaluation

Jiale Luo, Eric Han

This paper introduces CASCADE, a framework for systematically evaluating and combining defenses against LLM jailbreaks across different pipeline stages. It standardizes attack succ…

№07
cs.AI
8

A Lie Detector Test for Language Models: Reading Knowledge a Model Won't Reveal

Hiskias Dingeto

This paper introduces Probe of Internal Recognition (PIR), a method inspired by forensic concealed information tests to detect knowledge hidden within language models. PIR works by…

№08
cs.AI
8

AutoViewMem: Self-Configuring Orthogonal Views for Conversational Long-Term Memory

Zijie Cao, Xijun Qu et al.

AutoViewMem addresses the challenge of organizing diverse information in LLM long-term memory by creating self-configuring, low-overlap semantic views. This data-driven framework d…

№09
cs.AI
8

Bayesian Belief Layer for Controllable Opinion Dynamics in LLM Agents

Hafsa Akbar, Daniel Platnick et al.

This paper introduces Bayesian Chronicle Agents (BCA) to address the implicit opinion dynamics in LLM agents. BCAs separate an agent's beliefs from its speech, representing stances…

№10
cs.AI
8

CIPL: A Channel-Aware Framework for Recoverable Privacy Leakage in LLM Agents

Tao Huang, Guosen Wu et al.

This paper introduces CIPL, a novel framework for evaluating privacy leakage in LLM agents by considering the entire information flow from sensitive data to an attacker's observabl…

§ II

The Town Square

Hacker News 6
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