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Deterministic Entity Resolution: Schema-Derived Decision Logic for Variant Disambiguation and Precision Queries in Retrieval-Augmented Commerce Search
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 187 - Number 147 |
| Year of Publication: 2026 |
| Authors: Shekhar Maheshwari |
10.5120/ijca3cabe21c92e5
|
Shekhar Maheshwari . Deterministic Entity Resolution: Schema-Derived Decision Logic for Variant Disambiguation and Precision Queries in Retrieval-Augmented Commerce Search. International Journal of Computer Applications. 187, 147 ( Oct 2026), 55-60. DOI=10.5120/ijca3cabe21c92e5
Abstract
Deterministic entity resolution is a clear solution for differentiating between similar variants of products in retrieval-augmented commerce search. This study presents the schema-derived decision logic which can be used to alleviate the confusion between variants prior to retrieval and ranking based on the product title/brand field, the model terms, the pack signals, the attribute slots and the query intent markers. We have created a representative set of 171 instances for commerce-search for this study across six query patterns including exact product names, alias expressions, mixed attributes, ambiguous variants, bundle language and near duplicate product descriptions. The data was organized in a spreadsheet, processed with the Python scripting language and analyzed using rule tracing, text normalization, decision gates, summary tables, and plot visual outputs. This proposed framework requires no additional training labels; the decision of acceptance or rejection is made deterministically based on rules in the fields. The results suggest that the schema-aware logic helps to improve the separation of entities, reduces the number of irrelevant matches in high-intent commerce queries, and enables auditable query behavior. The study also demonstrates the value of compact decision traces, row-level evidence, and structured outputs in aiding product-search teams in diagnosis of retrieval errors, in addition to opaque scores. The framework is in general capable of disambiguating precisely, explainable and operationally for commerce search scenarios.
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