Comparing and Combining Dimension Reduction Techniques for Efficient Text Clustering (2009)
Bin Tang, Michael Shepherd, Evangelos Milios, Malcolm I. Heywood
A great challenge of text mining arises from the increasingly large text datasets and the high dimensionality associated with natural language. In this research, a systematic study is conducted of...
Syed Sibte, Raza Abidi, Micheal Kershaw, Evangelos Milios
In this paper we introduce a framework to supplement and tag computerized CPG with related best-evidence automatically sourced from on-line medical literature repositories. The idea is to provide CPG...
Evdoxios Baratis, Evangelos Milios
Abstract — Image-based abstraction (or summarization) of a Web site is the process of extracting the most characteristic (or important) images from it. The criteria for measuring the importance of...
Filtering for Medical News Items (2008)
Carolyn Watters, Wanhong Zheng, Evangelos Milios
In this paper we describe recent work to provide a filtering service for readers interested in medically related news articles from online news sources. The first task is to filter out the nonmedical...
Comparing and Combining Dimension Reduction Techniques for Efficient Text Clustering (2008)
Bin Tang, Michael Shepherd, Evangelos Milios, Malcolm I. Heywood
A great challenge of text mining arises from the increasingly large text datasets and the high dimensionality associated with natural language. In this research, a systematic study is conducted of...
Yongzheng Zhang, Nur Zincir-heywood, Evangelos Milios
Automatic key phrase extraction is a useful tool in many text related applications such as clustering and summarization. State-of-the-art methods are aimed towards extracting key phrases from...
3. Direct Summarization of Entire Web Site [1] (2008)
Yongzheng Zhang, Evangelos Milios, Nur Zincir-heywood, Key Components
Query formation and expansion Web page display on handheld devices Web document indexing Document relevance ranking
Document Representation and Dimension Reduction for Text Clustering (2008)
Mahdi Shafiei, Singer Wang, Roger Zhang, Evangelos Milios, Bin Tang, Jane Tougas, ...
Increasingly large text datasets and the high dimensionality associated with natural language create a great challenge in text mining. In this research, a systematic study is conducted, in which...
Information Retrieval by Semantic Similarity (2008)
Angelos Hliaoutakis, Giannis Varelas, Epimeneidis Voutsakis, Evangelos Milios
Abstract. Semantic Similarity relates to computing the similarity between conceptually similar but not nec-essarily lexically similar terms. Typically, semantic similarity is computed by mapping...
ABSTRACT Probabilistic Models for Focused Web Crawling (2008)
Hongyu Liu, Evangelos Milios, Jeannette Janssen
A Focused crawler must use information gleaned from previously crawled page sequences to estimate the relevance of a newly seen URL. Therefore, good performance depends on powerful modelling of...
Comparing Key Phrase Extraction Methods in Automatic Web Site Summarization (2008)
Yongzheng Zhang, Evangelos Milios, Nur Zincir-heywood
We benchmark five methods, TFIDF, KEA, Keyword, Keyterm, and Mixture, for key phrase extraction in the automatic Web site summarization task. We investigate the performance of these methods via a...
DalTREC 2005 Spam Track: Spam Filtering using N-gram-based Techniques (2008)
Evangelos Milios, Andrew Tuttle, Singer Wang, Roger Zhang
Note: This is a very rough draft of the report that will be submitted later for the proceedings. 1
Diffraction modeling for interactive virtual acoustical environment (2008)
Bill Kapralos, Michael Jenkin, Evangelos Milios
Abstract: Since the dimensions of many of the objects/surfaces encountered in our daily lives are within an order of magnitude of the wavelength of audible sounds, diffraction is an elementary means...
Evangelos Milios, Nathalia Rogers
The book is a collection of 25 essays by the author on various aspects of Internet culture, written between 1996 and 2001. The term Dark Fiber in the title of the book refers to unused fiber-optic...
Facilitating Knowledge Maintenance of Clinical Guidelines and Protocols (2008)
Syed Sibte, Raza Abidi, Allen Finley, Evangelos Milios, Michael Shepherd, David Zitner, ...
How To Use this Index: Scroll down or use the bookmarks in the left-hand frame to move to a new location in this index. Click on a blue title to view that paper. To return to this index after viewing...
Ioannis Rekleitis, Robert Sim, Gregory Dudek, Evangelos Milios
exploration for the construction of visual maps
Many Looks Before a Leap (2008)
Xiaotie Deng, Evangelos Milios, Andy Mirzaian
We are interested in the problem of map construction of an unknown environment. Even with a complete map, navigation of real autonomous mobile robots is still conducted with imperfect information....
Characterizing a social bookmarking and tagging network (2008)
Angelova, Ralitsa, Lipczak, Marek, Milios, Evangelos, Prałat, Paweł
Social networks and collaborative tagging systems are rapidly gaining popularity as a primary means for storing and sharing data among friends, family, colleagues, or perfect strangers as long as...
Bill Kapralos, Evangelos Milios
Audio-visual localization of speakers in a video teleconferencing setting
SHAPE MATCHING WITH OCCLUSION IN IMAGE DATABASES (2007)
Aristeidis Diplaros, Evangelos Milios
Abstract. We propose an approach for matching deformed, occluded and unoccluded shapes using Dynamic Programming (DP). We distinguish among various cases of matching including cases where the shapes...
Ioannis Rekleitis, Robert Sim, Gregory Dudek, Evangelos Milios
We examine the problem of learning a visual map of the environment while maintaining an accurate pose estimate. Our approach is based on using two robots in a simple collaborative scheme; in...
Ioannis Rekleitis, Gregory Dudek, Evangelos Milios
This paper presents a new sensing modality for multirobot exploration. The approach is based on using a pair of robots that observe each other, and act in concert to reduce odometry errors. We assume...
Ioannis Rekleitis, Robert Sim, Gregory Dudek, Evangelos Milios
We consider the problem of map learning while maintaining ground-truth pose estimates. Map learning is important in tasks that require a model of the environment or some of its features. As a robot...
Post-supervised Template Induction for Dynamic Web Sources (2007)
Zhongmin Shi, Evangelos Milios, Nur Zincir-heywood
Abstract. Dynamic web sites commonly return information in the form of lists and tables. Although hand crafting an extraction program for a specific template is time-consuming but straightforward, it...
AQUA: An underwater walking robot (2007)
Christina Georgiades, Andrew German, Andrew Hogue, Hui Liu, Chris Prahacs, Arlene Ripsman, ...
Abstract – Based on the RHHex hexapod robot, the AQUA robot is an aquatic robot that swims via the motion of its legs, rather than using thrusters and control surfaces for propulsion. Through an...
Ian Hopkins, Dr. Evangelos Milios
The undersigned hereby certify that they have read and recommend to
IntelliSearch: Intelligent Search for Images and Text on the Web (2006)
Epimenides Voutsakis, Evangelos Milios
Abstract. IntelliSearch is a complete and fully automated information retrieval system for the Web. It supports fast and accurate responses to queries addressing text and images in Web pages by...
N-gram-based Techniques (2006)
Evangelos Milios, Andrew Tuttle, Singer Wang
1 Introduction 2005 is the second year that Dalhousie University participated actively in TREC. The project DalTREC 1
IntelliSearch: Intelligent Search for Images and Text on the Web (2006)
Epimenides Voutsakis, Evangelos Milios
Abstract. IntelliSearch is a complete and fully automated information retrieval system for the Web. It supports fast and accurate responses to queries addressing text and images in Web pages by...
DalTREC 2005 Spam Track: Spam Filtering using (2006)
Evangelos Milios, Andrew Tuttle, Singer Wang, Roger Zhang
We briefly describe DalTREC 2005 Spam submission. DalTREC is the TREC research project at Dalhousie University. Four packages were submitted and they resulted in a median performance. The results are...
MedSearch: A retrieval system for medical information based on semantic similarity (2006)
Angelos Hliaoutakis, Giannis Varelas, Evangelos Milios
Abstract. MedSearch 1 is a complete retrieval system for Medline, the premier bibliographic database of the U.S. National Library of Medicine (NLM). MedSearch implements SSRM, a novel information...
Acoustical modeling using a Russian roulette strategy (2005)
Bill Kapralos, Michael R. Jenkin, Evangelos Milios
This convention paper has been reproduced from the author’s advance manuscript, without editing, corrections, or consideration by the Review Board. The AES takes no responsibility for the contents....
A Visually Guided Swimming Robot (2005)
Gregory Dudek Michael, Michael Jenkin, Chris Prahacs, Andrew Hogue, Junaed Sattar, Andrew German, ...
We describe recent results obtained with AQUA, a mobile robot capable of swimming, walking and amphibious operation. Designed to rely primarily on visual sensors, the AQUA robot uses vision to...
A visually guided swimming robot (2005)
Gregory Dudek, Michael Jenkin, Chris Prahacs, Andrew Hogue, Junaed Sattar, Andrew German, ...
Abstract – We describe recent results obtained with AQUA, a mobile robot capable of swimming, walking and amphibious operation. Designed to rely primarily on visual sensors, the AQUA robot uses...
Narrative text classification for automatic key phrase extraction in web document corpora (2005)
Yongzheng Zhang, Nur Zincir-heywood, Evangelos Milios
Automatic key phrase extraction is a useful tool in many text related applications such as clustering and summarization. State-of-the-art methods are aimed towards extracting key phrases from...
Michael Kershaw, Syed Sibte, Raza Abidi, Evangelos Milios
Clinical practice guidelines (CPG) are instrumental in standardizing the quality and delivery of care across different practitioners, departments and even institutions. Health practitioners when...
Focused crawling by learning hmm from user’s topic-specific browsing (2004)
Hongyu Liu, Evangelos Milios, Jeannette Janssen
A focused crawler is designed to traverse the Web to gather documents on a specific topic. It is not an easy task to predict which links lead to good pages. In this paper, we present a new approach...
Michael Kershaw, Syed Sibte, Raza Abidi, Evangelos Milios, Name Dr, Syed Sibte, ...
Clinical practice guidelines (CPG) are instrumental in standardizing the quality and delivery of care across different practitioners, departments and even institutions. Health practitioners when...
The AQUA aquatic walking robot (2004)
Christina Georgiades Andrew, Andrew German, Andrew Hogue, Hui Liu, Chris Prahacs, Arlene Ripsman, ...
Based on the RHHex hexapod robot, the AQUA robot is an aquatic robot that swims via the motion of its legs, rather than using thrusters and control surfaces for propulsion. Through an appropriate set...
AQUA: An aquatic walking robot (2004)
Christina Georgiades, Andrew German, Andrew Hogue, Hui Liu, Chris Prahacs, Arlene Ripsman, ...
Abstract – This paper describes an underwater walking robotic system being developed under the name AQUA, the goals of the AQUA project, the overall hardware and software design, the basic hardware...
A Comparison of Keyword- and Keyterm-Based Methods for Automatic Web Site Summarization (2004)
Yongzheng Zhang, Evangelos Milios, Nur Zincir-heywood
Automatic Web site summarization, which is based on keyword and key sentence extraction from narrative text, is an effective means of making the content of a Web site easily accessible to Web users....
Term-Based Clustering and Summarization of Web Page Collections (2004)
Yongzheng Zhang, Nur Zincir-heywood, Evangelos Milios
Abstract. Effectively summarizing Web page collections becomes more and more critical as the amount of information continues to grow on the World Wide Web. A concise and meaningful summary of a Web...
AQUA: An aquatic walking robot (2004)
Christina Georgiades, Andrew German, Andrew Hogue, Hui Liu, Chris Prahacs, Arlene Ripsman, ...
Abstract – This paper describes an underwater walking robotic system being developed under the name AQUA, the goals of the AQUA project, the overall hardware and software design, the basic hardware...
Milios Experiments in Free-Space Triangulation Using Cooperative Localization (2003)
Ioannis Rekleitis, Gregory Dudek, Evangelos Milios
Abstract — This paper presents a first detailed case study of collaborative exploration of a substantial environment.We use a pair of cooperating robots to test multi-robot environment mapping...
Active stereo sound localization (2003)
Greg L. Reid, Evangelos Milios
Estimating the direction of arrival of sound in three dimensional space is typically performed by generalized time-delay processing on a set of signals from a fixed array of omnidirectional...
Audio-visual localization of multiple speakers in a video teleconferencing setting (2003)
Bill Kapralos, Evangelos Milios, B. Kapralos, M. Jenkin, E. Milios
Audio-visual localization of multiple speakers in a video teleconferencing setting
Active stereo sound localization (2003)
Greg L. Reid, Greg L. Reid, Evangelos Milios, Evangelos Milios
Estimating the direction of arrival of sound in three dimensional space is typically performed by general-ized time-delay processing on a set of signals from an array of omnidirectional microphones....
Active stereo sound localization (2003)
Greg L. Reid, Greg L. Reid, Evangelos Milios, Evangelos Milios
Estimating the direction of arrival of sound in three dimensional space is typically performed by generalized time-delay processing on a set of signals from an array of omnidirectional microphones....
Probabilistic Cooperative Localization and Mapping in Practice (2003)
Ioannis Rekleitis, Gregory Dudek, Evangelos Milios
In this paper we present a probabilistic framework for the reduction in the uncertainty of a moving robot pose during exploration by using a second robot to assist. A Monte Carlo Simulation technique...
Probabilistic Cooperative Localization and Mapping in Practice (2003)
Ioannis Rekleitis Gregory, Gregory Dudek, Evangelos Milios
In this paper we present a probabilistic framework for the reduction in the uncertainty of a moving robot pose during exploration by using a second robot to assist. A Monte Carlo Simulation technique...
Todd Eavis, Examing Committee, Virendra Bhavsar, Andrew Rau-chaplin, Qigang Gao, Evangelos Milios, ...
Degree: Ph.D. Convocation: October Year: 2003 Permission is herewith granted to Dalhousie University to circulate and to have copied for non-commercial purposes, at its discretion, the above title...
Auditory perception and spatial (3D) auditory systems (2002)
Bill Kapralos, Evangelos Milios, B. Kapralos, M. Jenkin, E. Milios
In order to enable the user of a virtual reality system to be fully immersed in the virtual environment, the user must be presented with believable sensory input. Although the majority of virtual...
World Wide Web Site Summarization (2002)
Yongzheng Zhang, Nur Zincir-heywood, Evangelos Milios
Summaries of Web sites help Web users get an idea of the site contents without having to spend time browsing the sites. Currently, manually constructed summaries of Web sites by volunteer experts are...
Yongzheng Zhang, Nur Zincir-heywood, Evangelos Milios, Yongzheng Zhang, Nur Zincir-heywood, Evangelos Milios
As the size and diversity of the World Wide Web grows rapidly, it is becoming more and more difficult for a user to skim over a Web site and get an idea of its contents. Currently, manually...
Matching and Retrieval of Distorted and Occluded Shapes Using Dynamic Programming (2002)
Aristeidis Diplaros, Evangelos Milios, Aristeidis Milios
We propose an approach for matching distorted and possibly occluded shapes using Dynamic Programming (DP). We distinguish among various cases of matching such as cases where the shapes are scaled...
Zhongmin Shi, Evangelos Milios, Nur Zincir-heywood
Dynamic web sites commonly return information in the form of lists and tables. Al-though hand crafting an extraction program for a specific template is time-consuming but straightforward, it is...
World Wide Web Site Summarization (2002)
Yongzheng Zhang, Nur Zincir-heywood, Evangelos Milios
Summaries of Web sites help Web users get an idea of the site contents without having to spend time browsing the sites. Currently, manually constructed summaries of Web sites by volunteer experts are...
Node similarity in networked information spaces (2001)
Wangzhong Lu, Jeannette Janssen, Evangelos Milios, Nathalie Japkowicz
Netvorked information spaces contain information entities, corresponding to nodes, vhich are (:orlrle(:l.ed [)y associm.i(ms, (:or'r'esporldirlg 1.o links irl (.he nel.wor'k....
Characterizing and mining the citation graph of the computer science literature (2001)
Jeannette Janssen, Evangelos Milios, Yuan An, Yuan An, Evangelos E. Milios
Citation graphs representing a body of scientific literature convey measures of scholarly activity and productivity. In this vork ve present a study of the structure of the citation graph of computer...
Sonification of range information for 3D space perception (2001)
Evangelos Milios, Bill Kapralos, Agnieszka Kopinska, Sotirios Stergiopoulos
We present a device that allows 3-D Space Perception by sonification of range information obtained via a point laser range sensor. The laser range sensor is worn by a blindfolded user, who scans...
Collaborative exploration for map construction (2001)
Ioannis Rekleitis, Robert Sim, Gregory Dudek, Evangelos Milios
We consider the problem of map learning while maintaining ground-truth pose estimates. Map learning is important in tasks that require a model of the environment or some of its features. As a robot...
Shape retrieval based on dynamic programming (2000)
We propose a shape matching algorithm for deformed shapes based on dy-namic programming. Our algorithm is capable of grouping together segments at
Multi-robot collaboration for robust exploration (2000)
Yiannis Rekleitis, Greg Dudek, Evangelos Milios, Ioannis M. Rekleitis, Gregory Dudek
This paper presents a new sensing modality for multirobot exploration. The approach is based on using a pair of robots that observe each other's behavior, acting in concert to reduce odometry...
Retrieval of Deformed and Occluded Shapes using Dynamic Programming (1999)
Zusheng Rao, Euripides Petrakis, Zusheng Rao, Evangelos Milios, Evangelos Milios
We propose an approach for matching deformed shapes using dynamic programming. Our algorithms handle noise and shape distortions by allowing matching of merged sequences of consecutive small segments...
Efficient Shape Matching and Retrieval at Multiple Scales (1999)
We propose a novel approach for the recognition, clustering and retrieval of shapes. The heart of our methodology is a shape matching algorithm based on dynamic programming, that operates implicitly...
Name Yongzheng Zhang, Yongzheng Zhang, Advisors Dr, Evangelos Milios, Dr. Nur Zincir-heywood, Advisors Dr, ...
Concept Extraction from Product Web Pages.
Landmark Selection Strategies for Path Execution (1996)
Xiaotie Deng Evangelos, Evangelos Milios, Andy Mirzaian
A mobile robot often executes a planned path by measuring its position relative to visible landmarks at known positions and then using this information to estimate its own absolute position. The...
Reflections on Modelling a Sonar Range Sensor (1996)
Mj P, Gregory Dudek, Gregory Dudek, Michael Jenkin, Michael Jenkin, Evangelos Milios, ...
With the advent of inexpensive off-the-shelf sonar ranging units sonar has become a common sensor on mobile robotic platforms. Many different algorithms have been proposed to obtain environmental...
Landmark Selection Strategies for Path Execution (1996)
Xiaotie Deng, Evangelos Milios, Andy Mirzaian
A mobile robot often executes a planned path by measuring its position relative to visible landmarks at known positions and then using this information to estimate its own absolute position. The...
Landmark Selection Strategies for Path Execution (1995)
Xiaotie Deng, Evangelos Milios, Andy Mirzaian
A mobile robot often executes a planned path by measuring its position relative to visible landmarks at known positions and then using this information to estimate its own absolute position. The...
Robot Pose Estimation in Unknown Environments by Matching 2D Range Scans (1994)
Feng Lu And, Feng Lu, Evangelos Milios
A mobile robot exploring an unknown environment has no absolute frame of reference for its position, other than features it detects through its sensors. Using distinguishable landmarks is one...
Robot Pose Estimation in Unknown Environments by Matching 2D Range Scans (1994)
A mobile robot exploring an unknown environment has no absolute frame of reference for its position, other than features it detects through its sensors. Using distinguishable landmarks is one...
Gregory Dudek, Michael Jenkin, Evangelos Milios, David Wilkes Y, Mj P, Gregory Dudek, ...
ections on modelling a sonar range sensor
Modelling sonar range sensors (1992)
Mj P, Gregory Dudek, Gregory Dudek, Michael Jenkin, Michael Jenkin, Evangelos Milios, ...
Reflections on modelling a sonar range sensor
Filtering for medical news items using a machine learning approach.
Zheng, Wanhong, Milios, Evangelos, Watters, Carolyn
We address the problem of filtering medical news articles for targeted audiences. The approach is based on terms and one of the difficulties is extracting a feature set appropriate for the domain....