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Mario Leopold

dblp:395/1697 · DBLP profile ↗
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3ranked-venue papers
3as first author
3since 2021 · last 2025
0009-0003-1395-1665ORCID · corroborated

Domains — the database's venue-derived domains; a paper can count in several

Graphics, computer vision, multimedia, augmented reality and games · 3 · 3 first-author · 3 since 2021Artificial intelligence and machine learning · 1 · 1 first-author · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Computer graphics and multimedia
1 paper
Multimedia analysis and retrieval · 100%
Databases, data mining, and information retrieval
1 paper
Information retrieval · 100%

Topics — the 3 heaviest of 3, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Multimedia analysis and retrieval
video retrieval
0.912025
diveXplore - An Open-Source Software for Modern Video Retrieval with Image/Text Embeddings · ACM Multimedia 2025
Information retrieval
retrieval models
0.312025
diveXplore - An Open-Source Software for Modern Video Retrieval with Image/Text Embeddings · ACM Multimedia 2025
Information retrieval › cross-modal retrieval
visual-semantic embedding
0.312025
diveXplore - An Open-Source Software for Modern Video Retrieval with Image/Text Embeddings · ACM Multimedia 2025

Methods — techniques the papers use, named apart from their topics

text embedding · 1.7image embedding · 1.7
YearPublicationVenuePosition
2025 diveXplore - An Open-Source Software for Modern Video Retrieval with Image/Text Embeddings
Mario Leopold, Farzad Tashtarian, Klaus Schöffmann
ACM Multimedia1
2025 DiveXplore at the Video Browser Showdown 2025
Mario Leopold, Klaus Schöffmann
MMM (5)1
2024 Divexplore at Ivr4b 2024
abstract
The ability of contrastive language-image pretraining (CLIP) to pair text and image embeddings has notably enhanced the performance of video retrieval, enabling systems to efficiently utilize free-text searches within a CLIP-based embeddings index. Despite these technological improvements, disparities in user performance have been observed in recent video retrieval competitions, such as the Video Browser Showdown 2024 (VBS2024). We conclude that not only a highly accurate search index is important, but also factors such as runtime performance, system usability, browsing context, and interaction features. Addressing these issues, we introduce an enhanced version of the diveXplore system, merging the features of diveXplore 2024 and diveXB, our previously used systems for VBS2024 and IVR4B 2023. The system is designed for simple usage by video retrieval beginners, and optimized for fast and accurate search with clear content structuring and browsing context. The current diveXplore system uses an index of CLIP embeddings as the basic search method, including temporal queries, but also allows other search types (e.g., OCR, speech, metadata, etc.). It integrates a new video preview component with enriched browsing context, including a video summary of the related video, a video player, and a list of similar videos.
Mario Leopold, Klaus Schöffmann
CBMI1