Department of Computer Science and Information Systems: Recent submissions

  • Enriching An Academic knowledge base using Linked Open Data 
    Gavankar, Chetana (ACL anthology, 2012)
    In this paper we present work done towards populating a domain ontology using a public knowledge base like DBpedia. Using an academic ontology as our target we identify mappings between a subset of its predicates and ...
  • Enriching Concept Search across Semantic Web Ontologies 
    Gavankar, Chetana (CEUR, 2013)
    Semantic Web ontologies are fast-growing knowledge sources on the Web. Searching relevant concepts from this large repository is a challenging problem. The current Semantic Web search engines provide either (1) ...
  • Semi-automatic dictionary curation for domain-specific ontologies 
    Gavankar, Chetana (IEEE, 2013)
    Within the broad area of information extraction, we study the problem of effective dictionary curation in an enterprise setting. Equipped with an ontology, representative of the domain of an enterprise, our approach populates ...
  • Efficient Reuse of Structured and Unstructured Resources for Ontology Population 
    Gavankar, Chetana (ACL anthology, 2014)
    We study the problem of ontology population for a domain ontology and present solutions based on semi-automatic techniques. A domain ontology for an organization, often consists of classes whose instances are either specific ...
  • Context-driven Concept Search across Web Ontologies using Keyword Queries 
    Gavankar, Chetana (ACM Digital Library, 2015-10)
    Concepts in ontologies can be used in many scenarios, including annotation of online resources, automatic ontology population, and document classification to improve web search results. Collectively, tens of millions of ...
  • Explicit Query Interpretation and Diversification for Context-Driven Concept Search Across Ontologies 
    Gavankar, Chetana (Springer, 2016)
    Finding relevant concepts from a corpus of ontologies is useful in many scenarios, such as document classification, web page annotation, and automatic ontology population. Many millions of concepts are contained in a large ...
  • A Utility Tool for Personalised Medicine 
    Gavankar, Chetana (ACM Digital Library, 2018)
    Biomedical research is drowning in data, yet starving for knowledge. As the volume of scientific literature is growing unprecedentedly, revolutionary measures are needed for data management. Accessibility, analysis and ...
  • Exploring Various Aspects of Gabor Filter in Classifying Facial Expression 
    Parameswaran, Seetha (Springer, 2020-06)
    Facial expression detection is a well-studied domain in which facial features are extracted and then classified into six common expressions. One of the most common techniques used for extracting features is the Gabor filter. ...
  • Orthogonal moment operators for subpixel edge detection 
    Ghosal, Sugata (Elsevier, 1993-02)
    A new approach to detect step edges with subpixel accuracy is presented. The proposed approach is based on a set of orthogonal complex moments of the image known as Zernike moments. An ideal two-dimensional (2D) step edge ...
  • Segmentation of range images: an orthogonal moment-based integrated approach 
    Ghosal, Sugata (IEEE, 1993)
    A new approach to range image segmentation is presented. The proposed approach involves two phases in which the region and edge information detected using a set of orthogonal Zernike moment-based operators are combined to ...
  • Detection of composite edges 
    Ghosal, Sugata (IEEE, 1994-01)
    The paper presents a new parametric model-based approach to high-precision composite edge detection using orthogonal Zernike moment-based operators. It deals with two types of composite edges: (a) generalized step and (b) ...
  • Automatic substructuring for domain decomposition using neural networks 
    Ghosal, Sugata (IEEE, 2002-08)
    Application of neural networks for guiding solutions of large numerical problems is an emerging area of research. Automatic generation of subdomains from large 3D finite element meshes is a key preprocessing step in domain ...
  • Range surface characterization and segmentation using neural networks 
    Ghosal, Sugata (Elsevier, 1995)
    This paper presents an integrated neural net-based approach to the segmentation of range images into distinct surfaces, which is an essential step in range image analysis and interpretation. A two-stage connectionist neural ...
  • Target detection in foveal ATR systems 
    Ghosal, Sugata (IEEE, 1996)
    Automatic target recognition (ATR) applications require simultaneously a wide field of view (FOV) for better detection and situation awareness, high resolution for target recognition and threat assessment, and high frame ...
  • A fast scalable algorithm for discontinuous optical flow estimation 
    Ghosal, Sugata (IEEE, 1996-02)
    Multiple moving objects, partially occluded objects, or even a single object moving against the background gives rise to discontinuities in the optical flow field in corresponding image sequences. While uniform global ...
  • A moment-based unified approach to image feature detection 
    Ghosal, Sugata (IEEE, 1997-06)
    In this paper, a novel model-based approach is proposed for generating a set of image feature maps (or primal sketches). For each type of feature, a piecewise smooth parametric model is developed to characterize the local ...
  • An image retrieval system with automatic query modification 
    Ghosal, Sugata (IEEE, 2002-06)
    Most interactive "query-by-example" based image retrieval systems utilize relevance feedback from the user for bridging the gap between the user's implied concept and the low-level image representation in the database. ...
  • Adaptable Similarity Search using Non-Relevant Information 
    Ghosal, Sugata (Elsevier, 2002-08)
    This chapter presents a novel technique for improving the accuracy of adaptable similarity based retrieval by incorporating negative relevance judgment, and demonstrates excellent performance and robustness of the proposed ...
  • Leveraging non-relevant images to enhance image retrieval performance 
    Ghosal, Sugata (ACM Digital Library, 2002-12)
    Inherent subjectivity in user's perception of an image has motivated the use of relevance feedback (RF) in the image desigined output's retrieval process. RF techniques interactively determine the user's query concept, ...
  • QoSMig: adaptive rate-controlled migration of bulk data in storage systems 
    Ghosal, Sugata (IEEE, 2005-04)
    Logical reorganization of data and requirements of differentiated QoS in information systems necessitate bulk data migration by the underlying storage layer. Such data migration needs to ensure that regular client I/Os are ...

Search DSpace


Advanced Search

Browse

My Account