Keeping the Index Open: The Recommendation-Side Cost of Shared Search and Recommendation

arXiv:2608.24079 · cs.IR, cs.LG · Submitted 2026-08-25 · Read on arXiv

cs.IR, cs.LG

Submitted: 2026-08-25

Updated: 2026-08-26

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Benchmark — 43× in this paper · explained in 2 episodes
• Embeddings — 25× in this paper · explained in 2 episodes
• Accuracy — 22× in this paper · explained in 1 episode
• Transformer — 16× in this paper · explained in 2 episodes
• Ablation — 7× in this paper · explained in 1 episode
• Core — 5× in this paper · explained in 2 episodes
• Adam — 3× in this paper · explained in 2 episodes
• Alignment — 3× in this paper · explained in 1 episode
• Distillation — 3× in this paper · explained in 2 episodes
• Fidelity — 3× in this paper · explained in 2 episodes
• Quantization — 3× in this paper · explained in 12 episodes
• Representation Learning — 3× in this paper · explained in 2 episodes
• Cosine Similarity — 2× in this paper · explained in 3 episodes
• Generalization — 2× in this paper · explained in 13 episodes
• Provenance — 2× in this paper · explained in 3 episodes
• Robustness — 2× in this paper · explained in 5 episodes
• AUC — 1× in this paper · explained in 2 episodes
• Benchmarking — 1× in this paper · explained in 3 episodes
• Contrastive Learning — 1× in this paper · explained in 5 episodes
• Decode — 1× in this paper · explained in 2 episodes
• Hybrid System — 1× in this paper · explained in 2 episodes
• Matrix Completion — 1× in this paper · explained in 3 episodes
• Personalization — 1× in this paper · explained in 2 episodes
• Predictive Coding — 1× in this paper · explained in 2 episodes
• Pruning — 1× in this paper · explained in 4 episodes
• Sparsity — 1× in this paper · explained in 4 episodes

Sources

• Representation Learning with Contrastive Predictive Coding
• Unifying Generative and Dense Retrieval for Sequential Recommendation

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