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Using Ontology Dimensions and Negative Expansion to solve Precise Queries in the ImageCLEF Medical Task
2005
Conference and Labs of the Evaluation Forum
Our hypothesis is that precise document should emphasis only few terms of a given dimension. To compute this new constraint, we have set up a negative weight query expansion. ...
To our opinion, it shows that for a given domain, adding explicit knowledge stored into an ontology tree, enable to classify the importance of terms used in the query and enhance the finale average precision ...
The increase of average precision using negative query expansion with an ontology is then encouraging. ...
dblp:conf/clef/ChevalletLR05a
fatcat:f7ildx7gs5hddf6jzkqjcqhfja
Combining Textual and Visual Ontologies to Solve Medical Multimodal Queries
2006
2006 IEEE International Conference on Multimedia and Expo
In order to solve medical multimodal queries, we propose to split the queries in different dimensions using ontology. ...
We extract both textual and visual terms depending on the ontology dimension they belong to. Based on these terms, we build different sub queries each corresponds to one query dimension. ...
We also present how the fusion of ranked lists, generated using both text and image indexes, can contribute to solve precise multimodal queries and improve the retrieval performance. ...
doi:10.1109/icme.2006.262915
dblp:conf/icmcs/RadhouaniLCF06
fatcat:ccg2hbqflnbadlxwocib6haytq
Using heterogeneous annotation and visual information for the benchmarking of image retrieval systems
2006
Internet Imaging VII
This, in combination with high-level semantic queries, makes visual/textual combinations almost useless as the information need can often be solved using just textual features. ...
Two collections have an annotation per case and not per image, which is normal in the medical domain, making it difficult to relate parts of the accompanying text to corresponding images. ...
and 205321-109304/1. ...
doi:10.1117/12.660259
fatcat:6yrpnkatabe5hfi54kmnwajofy
Overview of the ImageCLEF 2012 Flickr Photo Annotation and Retrieval Task
2012
Conference and Labs of the Evaluation Forum
ImageCLEF's Flickr Photo Annotation and Retrieval task aims to advance the state of the art in multimedia research by providing a challenging benchmark for visual concept detection, annotation and retrieval ...
image annotation, while the objective of second subtask was to correctly retrieve relevant images for conceptoriented queries inspired by what people actually search for on the internet. ...
Finally, we are very grateful to the many crowdsource workers who performed the actual relevance assessments, as well as to the Flickr users whose photos we used in this task. ...
dblp:conf/clef/ThomeeP12
fatcat:cd2i3icgfnfhtawvwwgsake4hy
A graph-based approach for the retrieval of multi-modality medical images
2014
Medical Image Analysis
The extraction and visualisation of knowledge from these repositories is a major challenge in the modern, digital world. In the medical domain, im-"It's bigger on the inside!" ...
Without such stalwart friends and colleagues, I would have been left beleaguered by the roadside and it is thanks to them that I stand near the end of my journey. ...
Experiments on the ImageCLEF medical data set showed that pre-filtering resulted in higher precision and recall than executing queries on the entire data set. ...
doi:10.1016/j.media.2013.11.003
pmid:24378541
fatcat:mqzxyjza4bhwdk7iat5veyaqfq
From CLEF to TrebleCLEF: the Evolution of the Cross-Language Evaluation Forum
2008
NTCIR Conference on Evaluation of Information Access Technologies
In the first part of the paper, we provide a brief overview of the entire activity and summarise the main achievements; in the second part, we focus our attention on the Ad Hoc track with the aim of showing ...
how the results of evaluation can be exploited to increase understanding of the many issues involved in multilingual retrieval system development. ...
We should like to express out gratitude to all those who have been involved in the coordination of this activity over the years. ...
dblp:conf/ntcir/FerroP08
fatcat:h3p27ct6grgdnoe4sr52ce77va
A Survey of Quantum Theory Inspired Approaches to Information Retrieval
[article]
2020
arXiv
pre-print
This paper presents a survey of the research done in this area, aiming to show the landscape of the field and draw a road-map of future directions. ...
Since 2004, researchers have been using the mathematical framework of Quantum Theory (QT) in Information Retrieval (IR). QT offers a generalized probability and logic framework. ...
The authors are hopeful that this literature survey is able to provide a clear picture of the quantum-inspired IR field and set a road-map for researchers to take this field forward. ...
arXiv:2007.04357v1
fatcat:uc6mi6mlizfivk2v3reb474s4q
Gravitate Project D3.1 Report On Shape Analysis And Matching And On Semantic Matching
2016
Zenodo
These fields are relatively disjoint, and the research and development challenge of GRAVITATE is precisely to merge them. ...
This state of the art report describes the techniques of shape analysis, and of metadata search that have been already implemented in cultural heritage or we think are useful for the GRAVITATE project. ...
These fields are relatively disjoint at the moment, and the research and development challenge of GRAVITATE is precisely to merge them for our chosen tasks. ...
doi:10.5281/zenodo.55432
fatcat:tc3rsykiufezxeper7ldew2ibu
Exploiting Social Networks. Technological Trends (Habilitation Thesis)
[article]
2020
arXiv
pre-print
The work was validated with good results in evaluation campaigns like CLEF (Question Answering, Image CLEF, LifeCLEF, etc.), SemEval (Sentiment and Emotion in text, Anorexia, etc.). ...
The habilitation thesis presents two main directions: 1. ...
Acknowledgments To my collaborators and to my family ...
arXiv:2004.14386v1
fatcat:faoyxt42e5b5no57v6r5arnu5a
Semantics and statistics for automated image annotation
2010
semantics of the words used in the annotation process, is able to improve the performance of probabilistic annotation systems. ...
In particular, approaches based on Bayesian theory use machine-learning techniques to learn statistical models from a training set of pre-annotated images and apply them to generate annotations for unseen ...
Medical Retrieval Task The medical retrieval task of ImageCLEF 2010 will use a similar database to 2008 and 2009 but with a larger number of images. ...
doi:10.21954/ou.ro.0000643f
fatcat:xtz4bm6wqjgs5m4yvffj6th62m
Machine learning methods for multimedia information retrieval
[article]
2017
pre-print
but not limited to the ones presented in this thesis. ...
Since the used similarity graphs (Section 4.2) are greatly constrained for computational purposes, we would like to continue work with more complex, evolving and capable graphs and apply for different ...
query expansion formula of [Xu and Croft, 1996] . ...
doi:10.15476/elte.2016.086
arXiv:1705.04964v1
fatcat:ccvjysaxpjfbbkq3di4qmtwqpy
Multimodal News Summarization, Tracking and Annotation Incorporating Tensor Analysis of Memes
2017
We show the method is fast, can be tuned to give preferences to any subset of its four dimensions, and exceeds three existing methods in performance. ...
The dimensions correspond to extracted visual memes, verbal tags, time periods, and cultures. ...
On the image side, the output dimensions of the two hidden layers we use are [2048, 512]; on the tag side,
Figure 6 . 3 : 63 We use an image in culture 1 (say, U.S.) to query texts in culture 2 (say, ...
doi:10.7916/d8ff44n7
fatcat:4lr45mn3wbhspmyit3kkvujlz4
Exploiting Social Networks for Recommendation in Online Image Sharing Systems
2012
The online photo sharing site Flickr provides rich and varied data that can be used by researchers to analyse and understand users' interactions with images and with each other. ...
I analyse such data by modelling the connections between users as multigraphs and exploiting the resultant topologies to produce features that can be used to train recommender systems based on machine ...
I realised I had been on a trajectory throughout my education, aiming for this particular milestone and that it felt natural to pursue what would (I hoped) be a rewarding experience. ...
doi:10.21954/ou.ro.00007e30
fatcat:36i6yfiyebaild242cyajki2hy
Dagstuhl Reports, Volume 7, Issue 7, July 2017, Complete Issue
[article]
2018
We have demonstrated two tasks: 1) Given a query image (without any accompanying text), we retrieve textual descriptions that correspond to the visual attributes in the visual query; and 2) given a textual ...
Another well-known example is the ImageCLEF 2009 Photo Task, which revolved around image diversification [23] . ...
In JATE2, instead of using the annotation file "GENIAcorpus302.xml", the 'concept.txt' containing a breakdown list of GENIA concepts and relations (more like ontology) are used as the "Gold Standard" ( ...
doi:10.4230/dagrep.7.7
fatcat:ve4n3wvvk5bkfgae36nsto7sre
OASIcs-OpenAccess Series in Informatics
1998
Conference Proceedings
unpublished
Acknowledgements The author would like to particularly thank his primary supervisor, Dr. ...
Acknowledgements We would like to thank Domenico Corapi for his help and discussion on TAL and ASPAL. ...
The main purpose of this global ontology is to provide a unified query interface for the local ontologies. ...
fatcat:o5mmtkrtsnd4lpej5nww2zgpfe