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m-polignano
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Model Details
Model Provider
m-polignano
Model Tree
Qwen/Qwen3.5-9B-Base
Input Modalities
Output Modalities
Supported Functionality
| Base model | Qwen/Qwen3.5-9B-Base (revision 68c46c4b3498877f3ef123c856ecfde50c39f404), frozen |
| Starting point | the released jaredpalmer/kev-9b adapter and pointer head |
| Trained parameters | rank-16 LoRA adapters on all linear layers, pointer head |
| Training data | a fixed random 8,000 (seed 2026) of the 34,667 real next choices used for the 0.8B and 4B models (Amazon Video Games, Amazon Musical Instruments, Steam), over the 30 best candidates of the pool; the same 8,000 records train the data-matched 0.8B, 4B, 9B and 27B models of the paper |
| Objective | likelihood of the item the user really chose next; no outputs of any commercial model were used |
| Recipe | one epoch, learning rate 5e-5, one-cycle schedule, micro-batch 2 x 4 accumulation (8 records per step), bf16, gradient checkpointing |
| Trainer | Kev kev.train, commit 84847f0, on one NVIDIA DGX Spark |
NDCG@10 of Decision4Rec-Full on 2,000 development test users per domain (full-catalogue ranking, leave-one-out). Industrial and Scientific was never seen in training.
| System | Video Games | Musical Instr. | Steam | Industrial & Sci. |
|---|---|---|---|---|
| best trained baseline | 0.0622 | 0.0370 | 0.0790 | 0.0310 |
| pool and residual ranker, no decision model | 0.0730 | 0.0468 | 0.0786 | 0.0386 |
| with this model (fused) | 0.0736 | 0.0485 | 0.0798 | 0.0406 |
bash
cd ~/kev && uv run --extra serve python -m kev.serve --run m-polignano/decision4rec-kev-9B --port 8009decision4rec run --config configs/small/vg_rtm.yaml --backend configs/backends/kev-9B-rtm8k.yamlThe adapter and head are released under Apache-2.0. The base model keeps its own license. The training data come from public research datasets that are not redistributed here.
bibtex
@article{polignano2026decision4rec, title = {Decision4Rec: A Jev-Inspired Framework of Decision Models on Knowledge and Active Graphs for Multi-Agent Recommender Systems}, author = {Polignano, Marco and Mehta, Het Darshan and Lops, Pasquale and De Luca, Ernesto William and Semeraro, Giovanni}, year = {2026}}cd ~/kev && uv run --extra serve python -m kev.serve --run m-polignano/decision4rec-kev-9B --port 8009decision4rec run --config configs/small/vg_rtm.yaml --backend configs/backends/kev-9B-rtm8k.yaml@article{polignano2026decision4rec, title = {Decision4Rec: A Jev-Inspired Framework of Decision Models on Knowledge and Active Graphs for Multi-Agent Recommender Systems}, author = {Polignano, Marco and Mehta, Het Darshan and Lops, Pasquale and De Luca, Ernesto William and Semeraro, Giovanni}, year = {2026}}