1 citations · 1 across the 15 of their papers we have counts for
16 papers
Bounded, Indeterminate, or a Bug: A Condition-Aware Oracle for Differential Testing of SQL Aggregates
Madhulatha Mandarapu, Sandeep Kunkunuru
Differential database testing compares results across engines and calls a discrepancy a bug. For floating-point aggregates this is unsound: engines legitimately disagree because fl…
Removable and Irreducible: A Token-Cost Ledger for the Multilingual Tokenization Tax
Madhulatha Mandarapu, Sandeep Kunkunuru
Large language models pay a well-documented tax on non-English text: the same content costs several times more tokens, and because attention is quadratic in sequence length, far mo…
The Decode-Work Law: Margin-Governed, Provably-Exact Spatial Joins over Compressed Geometry
Madhulatha Mandarapu, Sandeep Kunkunuru
Filter-and-refine spatial joins have always avoided touching exact geometry for certified candidate pairs, but the field never modeled the decompression cost of the pairs that surv…
When to Repair a Graph ANN Index: A Matched-Budget Negative Result, and the Interpolated-Baseline Trap That Hid It
Madhulatha Mandarapu, Sandeep Kunkunuru
Graph approximate-nearest-neighbor (ANN) indexes (HNSW, DiskANN/Vamana) lose recall under insert/delete churn, because deletions orphan the greedy-search paths that route through r…
Knowledge Graphs as the Missing Data Layer for LLM-Based Industrial Asset Operations
Madhulatha Mandarapu, Sandeep Kunkunuru
LLM-based agents for industrial asset operations show limited accuracy when reasoning over flat document stores. AssetOpsBench (KDD 2026) establishes that GPT-4 agents achieve 65%…
One Index for Subsumption and Roll-up across Time, Geography, and Ontology
Madhulatha Mandarapu, Sandeep Kunkunuru
Time-series, geospatial, and ontology systems each maintain a hierarchy -- day <= month <= year, zip <= city, is-a / part-of -- and each indexes it in a separate silo. We observe t…