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105 sources in the directory · Latest publication in this list: 2026-07-21 04:00 UTC.

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2026-07-21

RouteCost: A Production-Inspired Multi-Stage Framework for Pre-Order Shipping Cost Estimation in E-Commerce

Accurate pre-order shipping cost estimation is crucial in e-commerce. RouteCost introduces a multi-stage framework that decomposes the problem into time-aware demand forecasting, fee-card-informed baseline pricing, residual correction, and proxy-based box-consolidation inference. Evaluated on over 250,000 orders across 260 products and 18 months, it improves predictive quality and calibration while preserving route-level interpretability.

arXiv Machine LearningAgents / ResearchIn-site articleRouteCost: A Production-Inspired Multi-Stage Framework for Pre-Order Shipping Cost Estimation in E-Commerce
Operator-Aware Mixed-Precision Tolerance Calibration for Tensor Kernels

This paper proposes an operator-aware mixed-precision tolerance calibration method that mines accumulated cloud GPU run data to automatically determine optimal absolute tolerances for tensor kernel correctness tests, achieving much tighter tolerances than hand-picked ones and significantly improving bug-detection recall.

arXiv Machine LearningChips / ResearchIn-site articleOperator-Aware Mixed-Precision Tolerance Calibration for Tensor Kernels
LLM Unlearning for Cyber Defense: A Survey on Methods, Challenges, and Emerging Threats

LLMs deployed in critical systems pose risks due to their inability to forget sensitive data. This survey examines gradient-based unlearning methods, questioning whether they genuinely remove knowledge or merely suppress expression, highlighting security and robustness challenges.

arXiv Machine LearningModels / ResearchIn-site articleLLM Unlearning for Cyber Defense: A Survey on Methods, Challenges, and Emerging Threats
Fully-sensorized smart-eyewear platform for on-device Machine Learning

This paper presents ARGO, a smart eyewear platform leveraging the STM32N6 microcontroller and its integrated NPU for on-device machine learning, minimizing latency and preserving privacy. Through holistic co-design of hardware, firmware, and AI, an optimized YOLOv11 model is deployed for real-time urban obstacle recognition, introducing Head-wise Parallel Attention (HPA) for efficient NPU execution. The model achieves mAP50-95 of 24 with only 2.483 MB memory footprint. The platform integrates multimodal sensors, runs at 10 FPS, and provides ~113 minutes of autonomy on a 200 mAh battery, demonstrating the feasibility of high-performance, privacy-preserving assistive devices.

arXiv Machine LearningModels / ResearchIn-site articleFully-sensorized smart-eyewear platform for on-device Machine Learning
DocOCR-Eval: A Correction-Based Framework for OCR Tool Selection Without Ground Truth

This paper proposes DocOCR-Eval, an annotation-free evaluation framework for automatic OCR assessment and selection. It employs a three-staged correction and ranking strategy to approximate annotation-based tool ordering without ground-truth labels. Experiments show that aggregating multiple MLLMs improves alignment with human rankings, enabling reliable tool selection in label-limited settings.

arXiv Machine LearningModels / Research / StartupsIn-site articleDocOCR-Eval: A Correction-Based Framework for OCR Tool Selection Without Ground Truth
Reinforcement Learning-Guided NSGA-II Enhanced with Gray Relational Coefficient for Multi-Objective Optimization: Application to NASDAQ Portfolio Optimization

This paper proposes a novel RL-guided NSGA-II algorithm enhanced with Gray Relational Coefficients (RL-NSGA-II-GRC) that improves convergence and diversity of Pareto fronts in multi-objective optimization. It achieves around 5.8% and 4.4% convergence improvements over NSGA-II on benchmarks and produces a smooth efficient frontier for NASDAQ portfolio optimization, identifying a maximum Sharpe ratio portfolio of 1.92.

arXiv Machine LearningResearch / AgentsIn-site articleReinforcement Learning-Guided NSGA-II Enhanced with Gray Relational Coefficient for Multi-Objective Optimization: Application to NASDAQ Portfolio Optimization
It Takes 8 Tokens: Weak-to-Strong Off-Policy RL via Auxiliary Branches

A new reinforcement learning method, W2SPO, uses weak auxiliary models to inject short segments into LLM reasoning paths, improving performance and training speed on math reasoning tasks.

arXiv AIModels / ResearchIn-site articleIt Takes 8 Tokens: Weak-to-Strong Off-Policy RL via Auxiliary Branches
Masked Diffusion Language Models are Strong and Steerable Text-Based World Models for Agentic RL

Recent growth in reinforcement learning (RL) requires diverse training environments. World models can simulate environment states, but autoregressive models suffer from left-to-right bias. Masked diffusion language models (MDLMs) overcome this via bidirectional anchor-aware denoising, achieving better coherence and rollout diversity than LLMs 4x their size. A GRPO training framework is introduced, achieving up to 47% absolute gains on zero-shot transfer to out-of-distribution environments. The dataset and code are open-sourced.

arXiv AIModels / Agents / ResearchIn-site articleMasked Diffusion Language Models are Strong and Steerable Text-Based World Models for Agentic RL
Generative Ontology Induction: Domain-Agnostic Schema Discovery from Document Corpora Using Large Language Models

This paper introduces Generative Ontology Induction (GOI), a domain-agnostic framework that induces a generative blueprint—entities, dimensions, properties, relationships, and constraints—from a corpus of examples and exports it as a typed graph (six node types, seven edge types) in YAML/JSON. A novel evaluation metric, Node Coverage Score, measures structural coverage. Validation on four diverse ontologies shows 95-100% coverage with GOI prompting, while a generic template drops significantly on unfamiliar domains.

arXiv AIModels / Research / StartupsIn-site articleGenerative Ontology Induction: Domain-Agnostic Schema Discovery from Document Corpora Using Large Language Models
Deterministic Replay for AI Agent Systems

arXiv:2607.16200 presents agrepl, a CLI framework for deterministic replay of AI agent executions. Using a MITM proxy, it records external interactions and replays them in isolation, achieving perfect fidelity (F=1.0) and 98.3% latency reduction.

arXiv AIAgents / ResearchIn-site articleDeterministic Replay for AI Agent Systems
PlanFlip: Attacking Multi-Agent LLM Systems via Planning-Phase Prompt Injection

A new research paper introduces PlanFlip, a framework of four planning-phase prompt injection attacks against multi-agent LLM systems. The study finds that stronger models like GPT-5 are more vulnerable, homogeneous backbones create a correlated-agent blind spot, and reasoning-augmented models like DeepSeek-R1 resist attacks. Two defenses are proposed with high detection rates.

arXiv AIModels / Agents / ResearchIn-site articlePlanFlip: Attacking Multi-Agent LLM Systems via Planning-Phase Prompt Injection
A Survey on GNN-based Link Prediction: Techniques, Applications, and Challenges

This paper provides a comprehensive review of GNN-based link prediction from a novel GNN perspective, proposing a taxonomy covering GCN, GAE, GAT, and GFormer architectures, highlighting applications in knowledge graphs and recommendations, and discussing challenges and future directions.

arXiv AIResearchIn-site articleA Survey on GNN-based Link Prediction: Techniques, Applications, and Challenges
Some Large Language Models Exhibit Consistent Risk Attitudes

A new study introduces a cross-domain framework to test LLMs' risk attitudes under uncertainty, finding that most models exhibit stable and consistent risk preferences both within and across tasks, with a distribution more restricted than humans.

arXiv AIModels / Agents / ResearchIn-site articleSome Large Language Models Exhibit Consistent Risk Attitudes
Design and Validation of a Lightweight 1D CNN for Affective Touch Classification in Soft Plush Companions

This study presents an open-source MATLAB framework for compact deep learning models for affective touch recognition in soft interactive companions. After exploring 468 CNN models, a 13.2k-parameter dilated 1D CNN achieved 75% test accuracy and 85% leave-one-subject-out cross-validation accuracy. A hybrid pipeline combining heuristic filtering and CNN classification enables real-time 20 Hz operation on a microcontroller, enabling privacy-preserving emotional touch interpretation.

arXiv AIResearchIn-site articleDesign and Validation of a Lightweight 1D CNN for Affective Touch Classification in Soft Plush Companions
Rater State Bias in RLHF Preference Data: An Audit Framework

This paper identifies a structured confound in RLHF: pairwise preference labels may reflect the rater's state under stress, leading to state-dependent shifts that differ from random noise. It proposes an audit framework with defined concepts, falsifiable predictions, and a pilot study plan for detecting such bias.

arXiv AIResearchIn-site articleRater State Bias in RLHF Preference Data: An Audit Framework
[AINews] not much happened today

A quiet day on the surface, but packed with developments: US policy targets Chinese open models, Kimi K3 and Qwen 3.8 advance, agent-centric generalization gains traction, and models show superhuman math abilities.

Latent SpaceModels / AgentsIn-site article[AINews] not much happened today
Five US tech giants' hidden debts soar to $1.65T on opaque AI funding

A Nikkei study shows hidden debt at U.S. tech giants swelled eightfold in roughly four years to an estimated $1.65 trillion as AI investments ballooned, exceeding actual debt and making it tougher for investors to assess risk.

Hacker News AIStartupsIn-site articleFive US tech giants' hidden debts soar to $1.65T on opaque AI funding
Gary Marcus: US won't "win" AI war with China. What we should do instead.

Gary Marcus argues that China's Kimi K3 model has caught up with US top models, disrupting American AI business models. He recounts his warnings since 2025 that the US focus on LLMs would lead to a tie, not victory. Marcus proposes seven strategic options, ranging from inaction to making AI a global public good via an international 'CERN for AI' initiative.

Hacker News AIModelsIn-site articleGary Marcus: US won't "win" AI war with China. What we should do instead.
Show HN: Turn casual photos into professional headshots with AI

Portraify is an AI-powered headshot generator that lets users upload 1–3 everyday photos to get a studio-quality portrait in seconds. It offers a free tier with 3 portraits, paid plans starting at $9, and emphasizes privacy by not storing uploaded photos.

Hacker News AIStartupsIn-site articleShow HN: Turn casual photos into professional headshots with AI
Hugging Face warns an autonomous AI agent hacked its network

Hugging Face disclosed that attackers used an autonomous AI agent system to breach its production infrastructure, gaining access to internal datasets and credentials. The company is investigating potential impact on partners and customers, with no evidence of tampering with public models or datasets so far.

Hacker News AIAgents / ResearchIn-site articleHugging Face warns an autonomous AI agent hacked its network
Concentrate: LLM Gateway

Concentrate is a managed LLM gateway that provides a single API to access over 130 models from major providers. It offers features such as model routing, spend tracking, security controls, and fallback redundancy, designed for teams scaling AI in production.

Hacker News AIModels / AgentsIn-site articleConcentrate: LLM Gateway
Sakana Fugu-Cyber

Sakana AI releases Fugu-Cyber, a new orchestration model for cyber defense, achieving state-of-the-art performance on CyberGym and CTI-REALM benchmarks. The article emphasizes that frontier models alone are insufficient for enterprise security, requiring specialized human expertise and deep integration. Sakana's Applied Enterprise team is collaborating with major Japanese institutions to deploy these models safely. Access to Fugu-Cyber is gated behind an application and approval process.

Hacker News AIModels / AgentsIn-site articleSakana Fugu-Cyber
Turning robot video into training-ready data

daft-physical-ai is a new open-source Python library built on Daft that provides ready-made operations for turning raw robot recordings into training-ready data. It currently supports hand tracking and reward scoring, with lazy batch execution and distributed processing.

Hacker News AIResearchIn-site articleTurning robot video into training-ready data
Show HN: AI Secretary – Stop checking your phone "just in case"

A self-hosted AI notification filter for Telegram that uses LLMs to filter noisy chats and send only important alerts via ntfy, allowing users to keep notifications off without missing urgent messages.

Hacker News AIModels / AgentsIn-site articleShow HN: AI Secretary – Stop checking your phone "just in case"
Show HN: Agent Search Engine – an independent index of 247 AI agents

A live technical index ranking AI agents, MCP servers, frameworks, and infrastructure by maintained adoption. Explore 247 verified records across 11 system classes.

Hacker News AIAgents / ResearchIn-site articleShow HN: Agent Search Engine – an independent index of 247 AI agents
Show HN: Vidmoat – a video editing pipeline any AI agent can operate

Vidmoat is an AI-powered video editor that lets you edit by prompt. It features auto-cut, AI captions, text-to-edit, one-click shorts, and an MCP server that enables any AI agent (Claude, Cursor, etc.) to drive the entire editing pipeline end-to-end.

Hacker News AIAgentsIn-site articleShow HN: Vidmoat – a video editing pipeline any AI agent can operate
Show HN: PounceDomains – Domain discovery and sniping for Namecheap Marketplace

PounceDomains is an AI-powered domain sniper for the Namecheap Marketplace. It surfaces the best names from thousands of aftermarket auctions, scores and enriches every match with AI tuned to your taste, and alerts you instantly so you can bid in one click.

Hacker News AIAgents / StartupsIn-site articleShow HN: PounceDomains – Domain discovery and sniping for Namecheap Marketplace
Devin Outposts on Modal

Cognition's Devin, an AI software engineer, can now run in Modal sandboxes via Devin Outposts, enabling customized environments with GPU support and fast cold-starts.

Modal BlogChips / AgentsIn-site articleDevin Outposts on Modal