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Md Abrar Jahin

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#machine learning Preprint Oct 2026

Differentiable Koopman Operator for Contrastive Learning on Dynamic Graphs

Real-world interaction networks are inherently dynamic: edges form and dissolve as node behavior shifts over time. Most snapshot-based contrastive methods encode temporal dependencies implicitly in encoder weights, without an explicit model of how node representations evolve, making them brittle under distribution shif...

Md Abrar Jahin, Taufikur Rahman Fuad, Md. Rizwan Parvez · 0 citations
#machine learning Preprint Sep 2026

The Selection Rule Decides the Winner: A Pre-Registered Audit of Open-Set Graph Anomaly Detection

This study re-run two recent methods, DEMO and NSReg, together with OUTPOST, a small first-order detector built for this study, and finds that a 0.002 tie band for hyperparameter selection lies below the paired standard error on all six graphs tested, even at ten seeds.

Farhana Hossain, Taufikur Rahman Fuad, Md Abrar Jahin et al. · 0 citations

ArticleMiner: Ontology-Guided Knowledge Graph Construction from Scientific Publications

This work builds four modules (for drug-discovery chemistry, materials science, machine learning, and mineral geochemistry) in the ArticleMiner framework, and evaluates them on 163 papers, including a new geochemistry benchmark with expert-curated ground truth.

Md Abrar Jahin, Craig A. Knoblock, Jay Pujara · 0 citations
#artificial intelligence Preprint Sep 2026

Spectral Initialization and Scheduled Graph Smoothness for Uncertain Knowledge Graph Completion

QUEST, which adds no trainable parameters to the standard confidence-distribution learning pipeline, improves confidence prediction and link prediction on six of eight metric-dataset pairs over prior methods and matches the previous best on the remaining two, while removing the instability spike observed on dense graph...

Md Abrar Jahin, Taufikur Rahman Fuad, Jay Pujara et al. · 0 citations
Preprint Aug 2026

GUI-Primitives: Diagnosing Spatial Reasoning Failures in Vision-Language GUI Grounding

Computer-use agents ground natural-language instructions in screenshots to locate interface elements, yet existing benchmarks do not isolate whether models bind relational language to the correct element. We introduce GUI-Primitives, a 994-item benchmark of contrastive instruction pairs over seven spatial relations in...

Md Abrar Jahin, Md. Rizwan Parvez · 0 citations

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