Sachin Raja

dblp:161/0959 · DBLP profile ↗
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3ranked-venue papers in the field
2as first author
2since 2021 · last 2025
0009-0004-0385-7437ORCID · corroborated

Domains — venue-derived; a paper can count in several

Other / Interdisciplinary · 2 (2 first)Data Mining & Knowledge Discovery · 1
YearPublicationVenuePosition
2025 EviFiVQA: A Benchmark for Evidence-Grounded Multi-hop Reasoning in Financial VQA
Sachin Raja, Ajoy Mondal, C. V. Jawahar
ICDAR (4)1
2023 ICDAR 2023 Competition on Visual Question Answering on Business Document Images
Sachin Raja, Ajoy Mondal, C. V. Jawahar
ICDAR (2)1
2020 Graph Representation Ensemble Learning
abstract
Representation learning on graphs has been gaining attention due to its wide applicability in predicting missing links and classifying and recommending nodes. Most embedding methods aim to preserve specific properties of the original graph in the low dimensional space. However, real-world graphs have a combination of several features that are difficult to characterize and capture by a single approach. In this work, we introduce the problem of graph representation ensemble learning and provide a first of its kind framework to aggregate multiple graph embedding methods efficiently. We provide analysis of our framework and analyze - theoretically and empirically - the dependence between state-of-the-art embedding methods. We test our models on the node classification task on four realworld graphs and show that proposed ensemble approaches can outperform the state-of-the-art methods by up to 20% on macro-F1. We further show that the strategy is even more beneficial for underrepresented classes with an improvement of up to 40%.
Palash Goyal, Sachin Raja, Sujit Rokka Chhetri, Arquimedes Canedo, Ajoy Mondal, Jaya Shree, C. V. Jawahar
ASONAM2