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Displaying 1-50 out of 61 total
Antiphishing through Phishing Target Discovery
Found in: IEEE Internet Computing
By Liu Wenyin,Gang Liu,Bite Qiu,Xiaojun Quan
Issue Date:March 2012
pp. 52-61
Phishing attacks are growing in both volume and sophistication. The antiphishing method described here collects webpages with either a direct or indirect association with a given suspicious webpage. This enables the discovery of a webpage's so-called
 
Automatic Detection of Phishing Target from Phishing Webpage
Found in: Pattern Recognition, International Conference on
By Gang Liu, Bite Qiu, Liu Wenyin
Issue Date:August 2010
pp. 4153-4156
An approach to identification of the phishing target of a given (suspicious) webpage is proposed by clustering the webpage set consisting of its all associated webpages and the given webpage itself. We first find its associated webpages, and then explore t...
 
Semantic Pattern based Dependency Matching for Exact Answer Retrieval
Found in: Semantics, Knowledge and Grid, International Conference on
By Liu Xiaoli, Dawei Hu, Min Feng, Liu Wenyin
Issue Date:October 2007
pp. 262-265
In this paper, we retrieve exact answer from a question/answer pair based on semantic pattern and dependency matching. Question target and the weight information of main phrase are gained from semantic pattern. Candidate exact answers to a question are ret...
 
Detecting Phishing Web Pages with Visual Similarity Assessment Based on Earth Mover's Distance (EMD)
Found in: IEEE Transactions on Dependable and Secure Computing
By Anthony Y. Fu, Liu Wenyin, Xiaotie Deng
Issue Date:October 2006
pp. 301-311
An effective approach to phishing Web page detection is proposed, which uses Earth Mover's Distance (EMD) to measure Web page visual similarity. We first convert the involved Web pages into low resolution images and then use color and coordinate features t...
 
Phishing Webpage Detection
Found in: Document Analysis and Recognition, International Conference on
By Liu Wenyin, Guanglin Huang, Liu Xiaoyue, Xiaotie Deng, Zhang Min
Issue Date:September 2005
pp. 560-564
An approach to detection of phishing webpages based on visual similarity is proposed, which can be utilized as a part of an enterprise solution to anti-phishing. A legitimate webpage owner can use this approach to search the Web for suspicious webpages whi...
 
Online Segmentation of Freehand Stroke by Dynamic Programming
Found in: Document Analysis and Recognition, International Conference on
By Liu Yin, Yu Yajie, Liu Wenyin
Issue Date:September 2005
pp. 197-201
In this paper, a dynamic programming (DP) based approach is proposed to split a freehand stroke into the optimal number of line segments and elliptical arcs. Different from existing DP approaches, which often require a predefined fixed number and/or the te...
 
Postal Address Detection fromWeb Documents
Found in: Challenges in Web Information Retrieval and Integration, International Workshop on
By Lin Can, Zhang Qian, Meng Xiaofeng, Liu Wenyin
Issue Date:April 2005
pp. 40-45
<p>An approach to postal address detection from webpages is proposed. The webpages are first segmented into text blocks based on their visual similarity. The text content in each block undergoes the recognition process, which employs a syntactic appr...
 
A Structural Approach to Recognizing Incomplete Graphic Objects
Found in: Pattern Recognition, International Conference on
By Yin Liu, Liu Wenyin, Changjun Jiang
Issue Date:August 2004
pp. 371-375
In this paper, we propose a structural approach to recognizing incomplete graphic objects, which aims to recognize a graphic object before the user finishes drawing all its strokes. In our approach, we first create a Spatial Division Tree (SDT) for the inp...
 
Longitudinal Sales Responses with Online Reviews
Found in: Data Mining Workshops, International Conference on
By Xiaojun Quan,Liu Wenyin,Wenyu Dou
Issue Date:December 2011
pp. 103-108
The longitudinal impact of online consumer reviews on hotel sales is studied. Different from previous efforts using pure ratings, this study explores the extraction and representation of consumer sentiments within review comments in an iterative approach. ...
 
Exploiting Spatiality, Motility and Interactivity: A Relationship-Centric Flash Retrieval Model
Found in: Distributed Computing Systems Workshops, International Conference on
By Bo Feng, Qing Li, Dawei Ding, Liu Wenyin
Issue Date:March 2004
pp. 242-247
In recent years, Flash movies are experiencing a breathtaking growth and have become one of the most prevailing media formats on the Web. Different from other media formats such as image or video, Flash movies contain various types of elements including no...
 
A Line Drawings Degradation Model for Performance Characterization
Found in: Document Analysis and Recognition, International Conference on
By Jian Zhai, Liu Wenyin, Dov Dori, Qing Li
Issue Date:August 2003
pp. 1020
Line detection algorithms constitute the basis for technical document analysis and recognition. The performance of these algorithms decreases as the quality of the documents degrades. To test the robustness of line detection algorithms under noisy circumst...
 
Arc Segmentation from Complex Line Environments: A Vector-Based Stepwise Recovery Algorithm
Found in: Document Analysis and Recognition, International Conference on
By Dov Dori, Liu Wenyin
Issue Date:August 1997
pp. 76
Accurate arc segmentation, essential for high-level engineering drawing understanding is very difficult due to noise, clutter, tangency, and intersections with other geometry objects. We present an application of a generic methodology for recognition of mu...
 
International Conference on Document Analysis and Recognition (ICDAR 2011) - Competitions Overview
Found in: Document Analysis and Recognition, International Conference on
By Haikal El Abed,Liu Wenyin,Volker Märgner
Issue Date:September 2011
pp. 1437-1443
The great success and high number of participants in pattern recognition related competitions last years show an important improvement of recognition and classification approaches. This success is unconceivable without the availability of huge datasets of ...
 
Detect Visual Spoofing in Unicode-Based Text
Found in: Pattern Recognition, International Conference on
By Bite Qiu, Ning Fang, Liu Wenyin
Issue Date:August 2010
pp. 1949-1952
Visual spoofing in Unicode-based text is anticipated as a severe web security problem in the near future as more and more Unicode-based web documents will be used. In this paper, to detect whether a suspicious Unicode character in a word is visual spoofing...
 
Automatic Question Translation Based on Semantic Pattern
Found in: Semantics, Knowledge and Grid, International Conference on
By Tianyong Hao, Liu Wenyin
Issue Date:December 2008
pp. 372-375
An automatic method for question translation based on semantic pattern is proposed in this paper, in which structure analysis, pattern matching and word sense selection are three important steps. An evaluation method is also presented to calculate the simi...
 
Semantic Pattern for User-Interactive Question Answering
Found in: Semantics, Knowledge and Grid, International Conference on
By Tianyong Hao, Qingtian Zeng, Liu Wenyin
Issue Date:November 2006
pp. 17
A new semantic pattern is proposed in this paper, which can be used by users to post questions and answers in user-interactive question answering (QA) system. The necessary procedures of using semantic pattern in a QA system are also presented, which inclu...
 
Efficient database facilities for content-based Flash retrieval
Found in: Multimedia and Expo, IEEE International Conference on
By Bo Feng, Qing Li, Jun Yang, Liu Wenyin, Jian Zhai
Issue Date:July 2003
pp. 37-40
Flash /spl trade/ is experiencing a breathtaking growth and has become one of the prevailing media formats on the Web. Unfortunately, little research effort has been dedicated to the retrieval of Flash movies by content, which is critical to the utilizatio...
 
On-Line Graphics Recognition
Found in: Computer Graphics and Applications, Pacific Conference on
By Jin Xiangyu, Liu Wenyin, Sun Jianyong, Zhengxing Sun
Issue Date:October 2002
pp. 256
A novel and fast shape classification and regularization algorithm for on-line sketchy graphics recognition is proposed. We divided the on-line graphics recognition process into four stages: preprocessing, shape classification, shape fitting, and regulariz...
 
Performance Evaluation of Graphics Recognition Algorithms: Principles and Applications
Found in: Pattern Recognition, International Conference on
By Liu Wenyin, Dov Dori
Issue Date:August 1998
pp. 1180
No summary available.
 
Incremental Arc Segmentation Algorithm and Its Evaluation
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Liu Wenyin, Dov Dori
Issue Date:April 1998
pp. 424-431
<p><b>Abstract</b>—We present an incremental arc segmentation algorithm, which recovers the vectorized arc fragments obtained by the vectorization of a piece of arc image in a stepwise fashion. Due to proper threshold selection and consis...
 
A New Image Quality Metric for Image Auto-denoising
Found in: 2013 IEEE International Conference on Computer Vision (ICCV)
By Xiangfei Kong,Kuan Li,Qingxiong Yang,Liu Wenyin,Ming-Hsuan Yang
Issue Date:December 2013
pp. 2888-2895
This paper proposes a new non-reference image quality metric that can be adopted by the state-of-the-art image/ video denoising algorithms for auto-denoising. The proposed metric is extremely simple and can be implemented in four lines of Matlab code. The ...
 
Link Graph Analysis for Business Site Selection
Found in: Computer
By Xiaojun Quan,Liu Wenyin,Wenyu Dou,Hui Xiong,Yong Ge
Issue Date:March 2012
pp. 64-69
This study proposes a graph-based method to address the business site selection problem from a perspective of
 
A Pixel-level Statistical Structural Descriptor for Shape Measure and Recognition
Found in: Document Analysis and Recognition, International Conference on
By Jing Zhang, Liu Wenyin
Issue Date:July 2009
pp. 386-390
A novel shape descriptor based on the histogram matrix of pixel-level structural features is presented. First, length ratios and angles between the centroid and contour points of a shape are calculated as two structural attributes. Then, the attributes are...
 
Automated Management of Assets Based on RFID
Found in: Sensor Networks, Ubiquitous, and Trustworthy Computing, International Conference on
By Shengguang Meng, Dickson K. W. Chiu, Liu Wenyin, Xuxiang Chen
Issue Date:June 2008
pp. 296-301
With the maturing of the Radio Frequency Identification (RFID) technology, automated management of assets (particularly for mobile ones) in an enterprise using RFID becomes practical. This paper proposes a RFID-based Asset Management System (RAMS) and deta...
 
Adaptation Rule Learning for Case-Based Reasoning
Found in: Semantics, Knowledge and Grid, International Conference on
By Huan Li, Dawei Hu, Tianyong Hao, Liu Wenyin, Xiaoping Chen
Issue Date:October 2007
pp. 44-49
A method of learning adaptation rules for case- based reasoning (CBR) is proposed in this paper. Adaptation rules are generated from the case-base with the guidance of domain knowledge which is also extracted from the case-base. The adaptation rules are re...
 
Question Similarity Calculation for FAQ Answering
Found in: Semantics, Knowledge and Grid, International Conference on
By Wanpeng Song, Min Feng, Naijie Gu, Liu Wenyin
Issue Date:October 2007
pp. 298-301
Frequently Asked Question (FAQ) answering is a very useful module in automatic question answering (QA) systems where calculation of question similarity is a key problem. In this paper, we propose a new method for measuring the similarity between users' que...
 
Automatic Clinical Question Answering Based on UMLS Relations
Found in: Semantics, Knowledge and Grid, International Conference on
By Wang Weiming, Dawei Hu, Min Feng, Liu Wenyin
Issue Date:October 2007
pp. 495-498
We propose an approach to automatic clinical question answering based on UMLS Relations. Rules are defined to identify the medical concepts and their relations in the ques- tions and documents with the help of Metamap Transfer and SemRep. The phrase-level ...
 
Acquiring Procedural Knowledge Historical Text
Found in: Semantics, Knowledge and Grid, International Conference on
By Tianyong Hao, Huan Li, Liu Wenyin
Issue Date:October 2007
pp. 491-494
This paper proposes four models to manually acquire procedural and declarative knowledge based on Procedural and Declarative Knowledge Acquisition Language (PDKAL). The method of transforming PDKAL to Object Language (OL) is also introduced for inference i...
 
Symbol Recognition with Kernel Density Matching
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Wan Zhang, Liu Wenyin, Kun Zhang
Issue Date:December 2006
pp. 2020-2024
We propose a novel approach to similarity assessment for graphic symbols. Symbols are represented as 2D kernel densities and their similarity is measured by the Kullback-Leibler divergence. Symbol orientation is found by gradient-based angle searching or i...
 
A User Reputation Model for a User-Interactive Question Answering System
Found in: Semantics, Knowledge and Grid, International Conference on
By Wei Chen, Qingtian Zeng, Liu Wenyin
Issue Date:November 2006
pp. 40
In this paper, we propose a user reputation model and use it for a user-interactive question answering system. It combines the social network analysis approach and the user rating approach. Social network analysis is applied to analyze the impact of partic...
 
Answer Clustering and Fusion in a User-Interactive QA System
Found in: Semantics, Knowledge and Grid, International Conference on
By Feng Min, Liu Wenyin, Wei Chen
Issue Date:November 2006
pp. 41
The need of answer clustering and fusion in a userinteractive question answering (QA) system is identified and its user interface and enabling technology are presented in this paper. This function aims to help a user to efficiently browse all the answers a...
 
SIIPU*S: A Semantic Pattern Learning Algorithm
Found in: Semantics, Knowledge and Grid, International Conference on
By Dawei Hu, Liu Wenyin, Enhong Chen, Xiaoping Chen, Xin Li
Issue Date:November 2006
pp. 52
The efficacy of pattern-based question answering system is mostly determined by the size of the semantic pattern base and the expression capability of the semantic patterns. We find that the expression capabilities of semantic patterns are determined by th...
 
A Cooperative Image Editing Tool over Mobile Phones
Found in: Multi-Media Modeling Conference, International
By Jian Zhai, Qing Li, Xiang Li, Liu Wenyin
Issue Date:January 2005
pp. 264-270
Nowadays, color screen, powerful computing processors, and high speed data communication protocols are supported by more and more mobile phones. Through these new technologies, it is possible for mobile phone users to download, view, and even edit images o...
 
A Metadata-Based Approach to Personalized Mobile Resource Sharing
Found in: Distributed Computing Systems Workshops, International Conference on
By Jian Zhai, Qing Li, Xiang Li, Liu Wenyin
Issue Date:March 2004
pp. 568-573
Along with the rapid development of mobile devices, resources become more and more dispersive, which poses a new challenge on how to support resource sharing and exchanging mechanism among the mobile users. To address such issues, we describe in this paper...
 
Engineering Drawings Recognition Using a Case-based Approach
Found in: Document Analysis and Recognition, International Conference on
By Luo Yan, Liu Wenyin
Issue Date:August 2003
pp. 190
In this paper, we propose a framework for engineering drawings recognition using a case-based approach. The key idea of our scheme is that, interactively, the user provides an example of one type of graphic object in an engineering drawing, then the system...
 
Audio restoration by constrained audio texture synthesis
Found in: Multimedia and Expo, IEEE International Conference on
By Lie Lu, Yi Mao, Liu Wenyin, Hong-Jiang Zhang
Issue Date:July 2003
pp. 405-408
Audio texture, a new audio medium, is used to synthesize long audio stream according to a given short example audio clip. In this paper, we extend this idea to audio texture restoration, or constrained audio texture synthesis for restoring those missing pa...
 
A Unified Framework for Web Link Analysis
Found in: Web Information Systems Engineering, International Conference on
By Zheng Chen, Li Tao, Jidong Wang, Liu Wenyin, Wei-Ying Ma
Issue Date:December 2002
pp. 63
Web link analysis has been proved to provide significant enhancement to the precision of web search in practice. Among existing approaches, Kleinberg?s HITS and Google?s PageRank are the two most representative algorithms that employ explicit hyperlinks st...
 
Search for Flash<sup>TM</sup> Movies on the Web
Found in: Web Information Systems Engineering Workshops, International Conference on
By Jun Yang, Qing Li, Liu Wenyin, Yueting Zhuang
Issue Date:December 2002
pp. 257
Flash<sup>TM</sup> is experiencing a breathtaking growth and has become one of the prevailing media formats on the Web. Unfortunately, no research effort has been dedicated to automatic retrieval of Flash movies by content, which is critical to...
 
Smart Sketchpad - An On-line Graphics Recognition System
Found in: Document Analysis and Recognition, International Conference on
By Liu Wenyin,Wenjie Qian,Rong Xiao,Xiangyu Jin
Issue Date:September 2001
pp. 1050
Abstract: An on-line graphics recognition system is presented, which provides users a natural, convenient, and efficient way to input rigid and regular shapes or graphic objects (e.g., triangles, rectangles, ellipses, straight line, arrowheads, etc.) by qu...
 
Automatic Performance Evaluation for Video Text Detection
Found in: Document Analysis and Recognition, International Conference on
By Xian-Sheng Hua,Liu Wenyin,Hong-Jiang Zhang
Issue Date:September 2001
pp. 0545
Abstract: In this paper, we propose an objective, comprehensive and difficulty-independent performance evaluation protocol for video text detection algorithms. The protocol includes a positive set and a negative set of indices at textbox level, which evalu...
 
THESAURUS-AIDED APPROACH FOR IMAGE BROWSING AND RETRIEVAL
Found in: Multimedia and Expo, IEEE International Conference on
By Jun Yang, Liu Wenyin, Hongjiang Zhang, Yueting Zhuang
Issue Date:August 2001
pp. 288
The current trend of image retrieval is to incorporate image semantics with visual features to enhance retrieval performance. Although many approaches annotate images with keywords and process query at the semantic level, they fail to explore the full pote...
 
INTERACTIVE TRACKER - A SEMI-AUTOMATIC
Found in: Multimedia and Expo, IEEE International Conference on
By Hua Zhong, Liu Wenyin, Shipeng Li
Issue Date:August 2001
pp. 296
A novel strategy for video object segmentation in normal video frames, which is an indispensable preprocessing of the object based video encoding in the MPEG-4 standard, is presented. It is a semi-automatic strategy, which combines the efficiency (speed) o...
 
A VIDEO TEXT DETECTION AND RECOGNITION SYSTEM
Found in: Multimedia and Expo, IEEE International Conference on
By Jie Xi, Xian-Sheng Hua, Xiang-Rong Chen, Liu Wenyin, Hong-Jiang Zhang
Issue Date:August 2001
pp. 222
In this paper, we propose a new system for text information extraction from news videos. First of all, a method that integrates text detecting and text tracking is developed to locate text areas in the key-frames (images), together with a scheme to evaluat...
 
Smartening the crowds: computational techniques for improving human verification to fight phishing scams
Found in: Proceedings of the Seventh Symposium on Usable Privacy and Security (SOUPS '11)
By Gang Liu, Wenyin Liu
Issue Date:July 2011
pp. 1-13
Phishing is an ongoing kind of semantic attack that tricks victims into inadvertently sharing sensitive information. In this paper, we explore novel techniques for combating the phishing problem using computational techniques to improve human effort. Using...
     
An asset management system based on RFID, WebGIS and SMS
Found in: Proceedings of the 2nd international conference on Ubiquitous information management and communication (ICUIMC '08)
By Gang Liu, Liu Wenyin, Shengguang Meng, Shitong Wang, Wei Chen
Issue Date:January 2008
pp. 1-2
In this paper, we propose an asset management system using technologies of Radio Frequency Identification (RFID), Web Geographic Information System (WebGIS) and Short Message Service (SMS) for intelligent management of assets. The proposed method tracks an...
     
Detection of phishing webpages based on visual similarity
Found in: Special interest tracks and posters of the 14th international conference on World Wide Web (WWW '05)
By Guanglin Huang, Liu Wenyin, Liu Xiaoyue, Xiaotie Deng, Zhang Min
Issue Date:May 2005
pp. 1060-1061
An approach to detection of phishing webpages based on visual similarity is proposed, which can be utilized as a part of an enterprise solution for anti-phishing. A legitimate webpage owner can use this approach to search the Web for suspicious webpages wh...
     
Introduction to the special section on intelligent tutoring and coaching systems
Found in: ACM Transactions on Intelligent Systems and Technology (TIST)
By Cristina Conati, Liu Wenyin, Qing Li, Xiangfeng Luo
Issue Date:March 2013
pp. 1-2
In this article we consider the special abilities needed by agents for assessing trust based on inference and reasoning. We analyze the case in which it is possible to infer trust towards unknown counterparts by reasoning on abstract classes or categories ...
     
International workshop on question answering on the web (QAWeb2008)
Found in: Proceeding of the 17th international conference on World Wide Web (WWW '08)
By Liu Wenyin, Qing Li, Xuedong Huang
Issue Date:April 2008
pp. 1-7
A half-day single track workshop is designed to gather academic researchers and industrial practitioners at to share ideas and knowledge of know-how, and to discuss all relevant issues including the business models, enabling technologies, and killer applic...
     
Categorizing and ranking search engine's results by semantic similarity
Found in: Proceedings of the 2nd international conference on Ubiquitous information management and communication (ICUIMC '08)
By Liu Wenyin, Shenhua GU, Shitong Wang, Tiansong Zou, Tianyong Hao, Zhi Lu
Issue Date:January 2008
pp. 1-2
An automatic method for text categorizing and ranking search engine's results by semantic similarity is proposed in this paper. We first obtain nouns and verbs from snippets obtained from search engine using Name Entity Recognition and part-of speech. A se...
     
Question recommendation for user-interactive question answering systems
Found in: Proceedings of the 2nd international conference on Ubiquitous information management and communication (ICUIMC '08)
By Dawei Hu, Enhong Chen, Liu Wenyin, Shenhua GU, Shitong Wang
Issue Date:January 2008
pp. 1-2
A balanced question recommendation mechanism for user-interactive question answering (QA) systems is proposed to automatically recommend a new question to suitable users to answer. In this mechanism, a user modeling method is used to estimate the interests...
     
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