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Mesh Retrieval by Components [chapter]

Ayellet Tal, Emanuel Zuckerberger
2007 Communications in Computer and Information Science  
The key idea is to represent an object by an attributed graph that consists of the object's meaningful components as nodes, where each node is fit to a basic shape.  ...  Keywords: 3D shape retrieval, 3D shape matching. Abstract: This paper examines the application of the human vision theories of Marr and Biederman to the retrieval of three-dimensional objects.  ...  The objects are therefore retrieved in an ascending order of their error values. MESH DECOMPOSITION The first step in signature construction is mesh decomposition into its meaningful components.  ... 
doi:10.1007/978-3-540-75274-5_3 fatcat:jvhtty2yjjfjrjnu4yby5bs2m4

MESH RETRIEVAL BY COMPONENTS
english

2006 Proceedings of the First International Conference on Computer Graphics Theory and Applications   unpublished
The key idea is to represent an object by an attributed graph that consists of the object's meaningful components as nodes, where each node is fit to a basic shape.  ...  Keywords: 3D shape retrieval, 3D shape matching. Abstract: This paper examines the application of the human vision theories of Marr and Biederman to the retrieval of three-dimensional objects.  ...  The objects are therefore retrieved in an ascending order of their error values. MESH DECOMPOSITION The first step in signature construction is mesh decomposition into its meaningful components.  ... 
doi:10.5220/0001352001420149 fatcat:vjmdrl5kpfah5ltrpu6wyu33na

3D-shape-based retrieval within the MPEG-7 framework

Titus Zaharia, Francoise J. Preteux, Edward R. Dougherty, Jaakko T. Astola
2001 Nonlinear Image Processing and Pattern Analysis XII  
The proposed descriptor aims at providing an intrinsic shape description of a 3D mesh and is defined as the distribution of the shape index over the entire mesh.  ...  Objective retrieval results, based upon the definition of a ground truth subset, are reported in terms of Bull Eye Percentage (BEP) score.  ...  Meshes (c) and (d) are made of two different connected components, defined by the faces (1, 2 and 3) and (4) for mesh (c), and faces (1, 2) and (3, 4) for mesh (d).  ... 
doi:10.1117/12.424969 fatcat:dqhltsvg6nexnggmk375rfhu3q

3D articulated object retrieval using a graph-based representation

Alexander Agathos, Ioannis Pratikakis, Panagiotis Papadakis, Stavros Perantonis, Philip Azariadis, Nickolas S. Sapidis
2010 The Visual Computer  
The superior performance of the proposed retrieval methodology against state-of-the-art approaches is shown by extensive experimentation that comprise the application of various geometric descriptors representing  ...  The methodology is composed of a mesh segmentation stage which creates the Attributed Relation Graph (ARG) of the object along with a graph matching algorithm which matches two ARGs.  ...  Acknowledgements This research was supported by the Greek Secretariat of Research and Technology (PENED "3D Graphics search and retrieval" 03 ED 520).  ... 
doi:10.1007/s00371-010-0523-1 fatcat:iw7sdpqvvzgyxahiegkc3rdufy

Skeleton-based canonical forms for non-rigid 3D shape retrieval

David Pickup, Xianfang Sun, Paul L. Rosin, Ralph R. Martin
2016 Computational Visual Media  
A common technique is to simplify this problem to a rigid shape retrieval task by producing a bending-invariant canonical form for each shape in the dataset to be searched.  ...  It is common for these techniques to attempt to "unbend" a shape by applying multidimensional scaling (MDS) to the distances between points on the mesh, but this leads to unwanted local shape distortions  ...  Acknowledgements This work was supported by EPSRC Research Grant No. EP/J02211X/1.  ... 
doi:10.1007/s41095-016-0045-5 fatcat:lmhvnmug7vauberulc4nhp3dxu

LIMSI @ 2014 Clinical Decision Support Track

Eva D'hondt, Brigitte Grau, Aurélie Névéol, Pierre Zweigenbaum, Stéfan Jacques Darmoni, Matthieu Schuers
2014 Text Retrieval Conference  
Since it was the rst time we participated in this task, we opted for an exploratory approach to test the impact of retrieval systems based on Bag-of-Words (BoW) or Medical Subject Headings (MeSH) index  ...  Our best run was a MeSH-based run in which PubMed was queried directly with the MeSH terms extracted from the case reports, combined with the MeSH terms of the top 5 disease hypotheses generated for the  ...  System Components Clinical question types as MeSH queries The clinical question aspect poses an interesting problem for retrieval: A document is only relevant if it refers to the disease or condition  ... 
dblp:conf/trec/DhondtGNZDS14 fatcat:c5bzpsnccngshcd7jmyssmflri

Retrieval of 3D Articulated Objects Using a Graph-based Representation [article]

Alexander Agathos, Ioannis Pratikakis, Panagiotis Papadakis, Stavros Perantonis, Philip Azariadis, Nickolas S. Sapidis
2009 Eurographics Workshop on 3D Object Retrieval, EG 3DOR  
with state of the art retrieval algorithms.  ...  This is composed of a meaningful new mesh segmentation along with a graph matching between the graph of the query object and each of the graphs that correspond to the objects of the 3D object database.  ...  Retrieval is achieved by graph-matching.  ... 
doi:10.2312/3dor/3dor09/029-036 fatcat:76d3yhouzrdehm3ytw3q3gvhb4

Academic information retrieval using citation clusters: In-depth evaluation based on systematic reviews [article]

Juan Pablo Bascur, Suzan Verberne, Nees Jan van Eck, Ludo Waltman
2022 arXiv   pre-print
This work evaluates the performance of citation based-clusters for information retrieval tasks.  ...  Our evaluation considered several trade-offs between recall and precision for the cluster selection, and we also replicated the Boolean queries self-reported by the systematic review to serve as a reference  ...  The number of retrieved papers with [Mesh Terms:noexp] was closer than [Mesh Terms] to the number of retrieved papers reported by SR4 for the respective lines of the Boolean query. exp *[term]/ [MeSH Major  ... 
arXiv:2207.03299v1 fatcat:kyckamdkkzcvrfavkttkxvcop4

Team UKNLP at TREC 2017 Precision Medicine Track: A Knowledge-Based IR System with Tuned Query-Time Boosting

Jiho Noh, Ramakanth Kavuluru
2017 Text Retrieval Conference  
We explored query expansion techniques using well-known broad knowledge sources such as the Unified Medical Language System (UMLS) and the Medical Subject Headings (MeSH) for each abstract, and additional  ...  The goal of the challenge is to retrieve useful precision medicinerelated information (abstracts, clinical trials) for the given synthetic cancer patient cases, each of which consists of a neoplastic condition  ...  [5] obtained the MeSH terms from the citations of the retrieved documents. We have focused more on disease and gene variations by utilizing UMLS concepts and MeSH terms.  ... 
dblp:conf/trec/NohK17 fatcat:vdby7mjzlrfghev7syc27ymlry

Question answering for biology and medicine

J. Gobeill, E. Patsche, D. Theodoro, A.-L. Veuthey, C. Lovis, P. Ruch
2009 2009 9th International Conference on Information Technology and Applications in Biomedicine  
answers, ranked by confidence.  ...  We have developed a Question Answering system which aims to analyze the user's question, to retrieve the most relevant documents from MEDLINE, and to extract from these retrieved documents a list of candidate  ...  Information Retrieval component The goal of the Information Retrieval component is to retrieve a set of relevant documents with regard to the query, from which candidates answer will be computed.  ... 
doi:10.1109/itab.2009.5394361 fatcat:ysobooou4fdcbnaropfyfewzfi

Retrieving Matching CAD Models by Using Partial 3D Point Clouds

Cheuk Yiu Ip, Satyandra K. Gupta
2007 Computer-Aided Design and Applications  
We assume that the information about the physical parts will be captured by a single 3D scan that produces dense point clouds. CAD models in our approach are represented as polygonal meshes.  ...  Our approach involves segmenting the point cloud and CAD mesh models into surface patches.  ...  This research has been supported in part by NSF grant DMI0093142. Opinions expressed in this paper are those of authors and do not necessarily reflect opinion of the sponsors.  ... 
doi:10.1080/16864360.2007.10738497 fatcat:lgrgqr5dj5cphgvx6zgnknteza

Applications of informatics in veterinary medicine

R D Smith, M Williams
2000 Bulletin of the Medical Library Association  
The number of articles retrieved by each MeSH keyword and subspecialty was calculated.  ...  A total of 611 articles were retrieved, representing the contributions of 1,338 authors published in 153 journals.  ...  subspecialties (ranked by number of references retrieved), the MeSH terms assigned to each, the number of veterinaryrelated articles (hits) retrieved by each MeSH term, and the total number of articles  ... 
pmid:10658963 pmcid:PMC35197 fatcat:xyv7wpaaando5bxuqbybbkeuru

Local Mesh Co-Occurrence Pattern For Content Based Image Retrieval

C. Yesubai Rubavathi, R. Ravi
2015 Zenodo  
This paper presents the local mesh co-occurrence patterns (LMCoP) using HSV color space for image retrieval system.  ...  Local mesh co-occurrence pattern extracts the local directional information from local mesh pattern and converts it into a well-mannered feature vector using gray level co-occurrence matrix.  ...  Local Mesh Pattern Subrahmanyam et al. [16] proposed Local Mesh Pattern (LMeP) for biomedical image indexing and retrieval.  ... 
doi:10.5281/zenodo.1108124 fatcat:h6xfvismmrgmbesjgujia44slq

Passage Relevancy Through Semantic Relatedness

Luis Tari, Phan Huy Tu, Barry Lumpkin, Robert Leaman, Graciela Gonzalez, Chitta Baral
2007 Text Retrieval Conference  
We added some components to our automatic question answering system, including (i) a simple algorithm to select which keywords extracted from natural language questions should be treated as essential in  ...  use of different entity recognizers for various biological entity classes in the extraction of passages (iii) determining relevancy of candidate passages with the use of semantic relatedness based on MeSH  ...  Document Retrieval The document retrieval component involves the processing of natural language questions to form queries and expansion of biological entities identified by the question processor.  ... 
dblp:conf/trec/TariTLLGB07 fatcat:wpqkmhhaafg4zeeysrb5h7qfya

ConTopo: Non-Rigid 3D Object Retrieval using Topological Information guided by Conformal Factors [article]

Konstantinos Sfikas, Ioannis Pratikakis, Theoharis Theoharis
2011 Eurographics Workshop on 3D Object Retrieval, EG 3DOR  
of retrieval accuracy and computation speed.  ...  Combining the properties of conformal geometry and graph-based topological information for 3D object retrieval, a non-rigid 3D object descriptor is proposed, which is both robust and efficient in terms  ...  adjacent connected components (Figure 4c ). • Connection between neighboring nodes that represent adjacent connected components by graph edges (Figure 4d ).  ... 
doi:10.2312/3dor/3dor11/025-032 fatcat:owz4bns5arezzjdrviri5pbmhi
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