VLDB 2026 Research / reviewers in the wild / expert
Tushar Abhishek
dblp:301/7830
· DBLP profile ↗
5ranked-venue papers
2as first author
5since 2021 · last 2026
0000-0001-9646-1159ORCID · corroborated
Domains — the database's venue-derived domains; a paper can count in several
Artificial intelligence and machine learning · 3 · 1 first-author · 3 since 2021Databases, data management, data science and information retrieval · 3 · 2 first-author · 3 since 2021Graphics, computer vision, multimedia, augmented reality and games · 1 · 1 since 2021
| Year | Publication | Venue | Position |
|---|---|---|---|
| 2026 | DocQAC: Adaptive Trie-Guided Decoding for Effective In-Document Query Auto-Completion
Rahul Mehta 0008, Kavin R. V, Indrajit Pal, Tushar Abhishek, Pawan Goyal 0002, Manish Gupta 0001 |
SIGIR | 4 |
| 2025 | EnhanceMyPrompt: Rewriting Chat Queries for Effective Response Generation from LLMsabstractShort and ambiguous queries in chat interfaces like Microsoft Copilot often lead to vague or irrelevant LLM responses, increasing task completion time. Hence, we introduce a novel problem: semi-automatically enhancing such queries/prompts into specific, well-formed ones with clear intent. Unlike prompt optimization, our approach adds relevant sub-intents or constraints rather than just rewording for brevity. We propose EnhanceMyPrompt, which uses small language models (SLMs) to enrich prompts by adding sub-intents/constraints, suggesting placeholders, and recommending popular values. We also introduce metrics to measure prompt improvement, user effort, and LLM response quality. Experiments on a proprietary Microsoft Copilot and LMSYS+NQ datasets with four SLMs show effectiveness: EnhanceMyPrompt predicts user intents up to 3 turns ahead in ~23% of conversations, enabling efficient sessions. Code, prompts, data, and models for LMSYS+NQ are publicly available. Tushar Abhishek, Manas Jain, Shishir Hardia, Shreevignesh Suriyanarayanan, Sandra Anil, Rushabh Gandhi, Manish Gupta 0001 |
CIKM | 1 |
| 2023 | XFLT: Exploring Techniques for Generating Cross Lingual Factually Grounded Long TextabstractMultiple business scenarios require an automated generation of descriptive human-readable long text from structured input data, where the source is typically a high-resource language and the target is a low or medium resource language. We define the Cross-Lingual Fact to Long Text Generation (XFLT) as a novel natural language generation (NLG) task that involves generating descriptive and human-readable long text in a target language from structured input data (such as fact triples) in a source language. XFLT is challenging because of (a) hallucinatory nature of the state-of-the-art NLG models, (b) lack of good quality training data, and (c) lack of a suitable cross-lingual NLG metric. Unfortunately previous work focuses on different related problem settings (cross-lingual facts to short text or monolingual graph to text) and has made no efforts to handle hallucinations. In this paper, we contribute a novel dataset, XLALIGN with over 64,000 paragraphs across 12 different languages, and English facts. We propose a novel solution to the XFLT task which addresses these challenges by training multilingual Transformer-based encoder-decoder models with coverage prompts and grounded decoding. Further, it improves on the XFLT quality by defining task-specific reward functions and training on them using reinforcement learning. On XLALIGN, we compare this novel solution with several strong baselines using a new metric, cross-lingual PARENT. We also make our code and data publicly available https://drive.google.com/file/d/1sHgcwXKribjrm2grbs-LzXUUqXQitD2N/. Bhavyajeet Singh, Kancharla Aditya Hari, Rahul Mehta 0008, Tushar Abhishek, Manish Gupta 0001, Vasudeva Varma |
ECAI | 4 |
| 2023 | XF2T: Cross-lingual Fact-to-Text Generation for Low-Resource LanguagesabstractMultiple business scenarios require an automated generation of descriptive humanreadable text from structured input data.This has resulted into substantial work on fact-totext generation systems recently.Unfortunately, previous work on fact-to-text (F2T) generation has focused primarily on English mainly due to the high availability of relevant datasets.Only recently, the problem of crosslingual fact-to-text (XF2T) was proposed for generation across multiple languages alongwith a dataset, XALIGN for eight languages.However, there has been no rigorous work on the actual XF2T generation problem.We extend XALIGN dataset with annotated data for four more languages: Punjabi, Malayalam, Assamese and Oriya.We conduct an extensive study using popular Transformer-based text generation models on our extended multilingual dataset, which we call XALIGNV2.Further, we investigate the performance of different text generation strategies: multiple variations of pretraining, fact-aware embeddings and structure-aware input encoding.Our extensive experiments show that a multi-lingual mT5 model which uses fact-aware embeddings with structure-aware input encoding leads to best results (30.90 BLEU, 55.12 METEOR and 59.17 chrF++) across the twelve languages.We make our code and dataset publicly available 1 , and hope that this will help advance further research in this critical area. https://github.com/blitzprecision/ XAlignV22 A fact is a triple composed of subject, relation and object. Shivprasad Sagare, Tushar Abhishek, Bhavyajeet Singh, Anubhav Sharma, Manish Gupta 0001, Vasudeva Varma |
INLG | 2 |
| 2022 | Fact Aware Multi-task Learning for Text Coherence Modeling
Tushar Abhishek, Daksh Rawat, Manish Gupta 0001, Vasudeva Varma |
PAKDD (2) | 1 |