Adaptive BLASTing through the Sequence Dataspace: Theories on Protein Sequence Embedding (2009)
Hong, Yoojin, Kang, Jaewoo, Lee, Dongwon, Patterson, Randen L., Van Rossum, Damian B.
We theorize that phylogenetic profiles provide a quantitative method that can relate the structural and functional properties of proteins, as well as their evolutionary relationships. A key feature...
DL2Go: Editable Digital Libraries in the Pocket (2009)
Hyunyoung Kil, Wonhong Nam, Dongwon Lee
Abstract. A preliminary framework, termed as DL2Go, that enables editable and portable personal digital libraries is presented. For mobile offline users of digital libraries, DL2Go can: (1) package...
Effective Web Service Composition in Diverse and Large-Scale Service Networks (2009)
Abstract—Web services are considered to be a potential silver bullet for the envisioned Service Oriented Architecture, in which loosely coupled software components are published, located, and...
Type-Aware Web Service Composition Using Boolean Satisfiability Solver (2009)
Wonhong Nam, Hyunyoung Kil, Dongwon Lee
The goal of the Web Service Composition (WSC) problem is to find an optimal “composition ” of web services to satisfy a given request using their syntactic and/or semantic features, when no...
Modeling Idiosyncratic Properties of Collaboration Networks Revisited (2009)
A study on the network characteristics of two collaboration networks constructed from the ACM and DBLP digital libraries is presented. Different types of generic network models and several examples...
In this paper, we propose a Web service composition framework that uses Integer Linear Programming with non-functional objectives and constraints, in addition to the syntactic matching of Web...
Fengjun Li, Bo Luo, Peng Liu, Dongwon Lee, Prasenjit Mitra, Wang-chien Lee, ...
Abstract—An XML brokerage system is a distributed XML database system that comprises data sources and brokers which, respectively, hold XML documents and document distribution information....
Sven G. Bilén, Dongwon Lee, John I. Messner, Hien T. Nguyen, Timothy W. Simpson, Angsana A. Techatassanasoontorn, ...
We report our preliminary findings on the evaluation of Tablet PC technology use and its impact on learning across a variety of undergraduate and graduate classes from four technology and engineering...
Video Linkage: Group Based Copied Video Detection (2009)
Hung-sik Kim, Jeongkyu Lee, Haibin Liu, Dongwon Lee
Sites to share user-created video clips such as YouTube and Yahoo Video have become greatly popular in recent years. One of the challenges of such sites is, however, to prevent video clips that...
Record Linkage as DNA Sequence Alignment Problem (2009)
Yoojin Hong, Tao Yang, Jaewoo Kang, Dongwon Lee
Since modern database applications increasingly need to deal with dirty data due to a variety of reasons (e.g., data entry errors, heterogeneous formats, and ambiguous terms), considerable recent...
On the Topological Landscape of Web Services (2009)
Hyunyoung Kil, Seog-chan Oh, Dongwon Lee
Abstract. Despite the rapid development in web services technologies, there has been little study on the public web services from network analysis perspective. To address this, in this paper, we have...
Steven Bird, Robert Dale, Bonnie J. Dorr, Bryan Gibson, Mark T. Joseph, Min-yen Kan, ...
The ACL Anthology is a digital archive of conference and journal papers in natural language processing and computational linguistics. Its primary purpose is to serve as a reference repository of...
TBE: Trigger-By-Example (2008)
Dongwon Lee, Wenlei Mao, Wesley W. Chu
Triggers have been adopted as an important database feature and implemented by most major database vendors. Despite their diverse potential usages, one of the obstacles that hinder the triggers from...
Identifying Value Mappings for Data Integration: An Unsupervised Approach (2008)
Jaewoo Kang, Dongwon Lee, Prasenjit Mitra
Abstract. The Web is a distributed network of information sources where the individual sources are autonomously created and maintained. Consequently, syntactic and semantic heterogeneity of data...
ABSTRACT Web Based Linkage (2008)
Ergin Elmacioglu, Min-yen Kan, Dongwon Lee, Yi Zhang
When a variety of names are used for the same real-world entity, the problem of detecting all such variants has been known as the (record) linkage or entity resolution problem. In this paper, toward...
Detection of hydrogen peroxide with chemiluminescent micelles (2008)
Dongwon Lee1, Venkata R Erigala1,3, Madhuri Dasari1, Junhua Yu2, Robert M Dickson2, Niren Murthy11The Wallace H. Coulter Department of Biomedical Engineering; 2Department of Chemistry and...
Study of the 11C(p,gamma) reaction via the indirect d(11C,12N)n transfer reaction (2008)
Lee, Dongwon, Powell, James, Perajarvi, Kari, Guo, Fanqing, Moltz, Dennis, Cerny, Joseph
Search Crossroads, Link To Us, Crossroads En, Dongwon Lee, Yousub Hwang
Q1: The primary duty of a database manager is to Communicate with employees facilitate the customers impress the employers maintain and advance the
on Web Information and Data Management (WIDM 2004) (2008)
main objective of the workshop was to bring together researchers, industrial practitioners, and developers
Sungbo Seo, Jaewoo Kang, Dongwon Lee, Keun Ho Ryu
Abstract. We introduce an adaptive framework for multivariate sensor stream data reduction. The proposed method takes as input a sliding window of multivariate stream data, classifies the data in...
ABSTRACT Web Based Linkage (2008)
Ergin Elmacioglu, Min-yen Kan, Dongwon Lee, Yi Zhang
When a variety of names are used for the same real-world entity, the problem of detecting all such variants has been known as the (record) linkage or entity resolution problem. In this paper, toward...
On the Topological Landscape of Web Services (2008)
Hyunyoung Kil, Seog-chan Oh, Dongwon Lee
Abstract. Despite the rapid development in web services technologies, there has been little study on the public web services from network analysis perspective. To address this, in this paper, we have...
ABSTRACT Blocking-Aware Private Record Linkage (2008)
Ali Al-lawati, Dongwon Lee, Patrick Mcdaniel
In this paper, the problem of quickly matching records (i.e., record linkage problem) from two autonomous sources without revealing privacy to the other parties is considered. In particular, our...
main objective of the workshop was to bring together researchers, industrial practitioners, and developers
Security-Conscious XML Indexing (2008)
Abstract. To support secure exchanging and sharing of XML data over the Internet, a myriad of XML access control mechanisms have been proposed. In the setting of node-level fine-grained access...
Seog-chan Oh, Hyunyoung Kil, Dongwon Lee
As the number of available web services is rapidly increasing, the effective and efficient service discovery and composition becomes a pressing problem for value-added distributed applications. To...
Toward Alternative Measures for Ranking Venues: A Case of Database Research Community (2008)
Ranking of publication venues is often closely related with important issues such as evaluating the contributions of individual scholars/research groups, or subscription decision making. The...
We proposed to organize the CleanDB workshop [6] (2008)
as a forum focusing on the issues to maintain and improve the “Quality of Data ” (QoD) toward clean databases. The existence of poor or erroneous data in databases causes the so-called...
Identifying Value Mappings for Data Integration: An Unsupervised Approach (2008)
Jaewoo Kang, Dongwon Lee, Prasenjit Mitra
Abstract. The Web is a distributed network of information sources where the individual sources are autonomously created and maintained. Consequently, syntactic and semantic heterogeneity of data...
XML access control refers to the practice of limiting access to (parts of) XML data to only authorized users. Similar to access control over other types of data and resources, XML access control is...
ABSTRACT Blocking-Aware Private Record Linkage (2008)
Ali Al-lawati, Dongwon Lee, Patrick Mcdaniel
In this paper, the problem of quickly matching records (i.e., record linkage problem) from two autonomous sources without revealing privacy to the other parties is considered. In particular, our...
Oracle, Where Shall I Submit My Papers (2008)
In April 2005, a group of MIT students pulled prank [1] on the conference – “World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI) ” [10] – known for sending unsolicited...
Multivariate Stream Data Classification Using Simple Text Classifiers (2008)
Sungbo Seo, Jaewoo Kang, Dongwon Lee, Keun Ho Ryu
Abstract. We introduce a classification framework for continuous multivariate stream data. The proposed approach works in two steps. In the preprocessing step, it takes as input a sliding window of...
Bibliography Published Papers by Dragomir R. Radev References (2008)
Dragomir R. Radev, Alfred Aho, Shih-fu Chang, Kathleen Mckeown, Dragomir Radev, James Allan, ...
retrieval and language modeling. SIGIR Forum, 37(1), March
Bibliography Published Papers by Dragomir R. Radev References (2008)
Dragomir R. Radev, Alfred Aho, Shih-fu Chang, Kathleen Mckeown, Dragomir Radev, James Allan, ...
retrieval and language modeling. SIGIR Forum, 37(1), March
Dongwon Lee, Wenlei Mao, Henry Chiu, Wesley W. Chu
Abstract. One of the obstacles that hinder database trigger systems from their wide deployment is the lack of tools that aid users in creating trigger rules. Similar to understanding and specifying...
TBE: Trigger-By-Example (2007)
Dongwon Lee, Wenlei Mao, Wesley W. Chu
(dongon, enlei, c}c s. ucla. edu Abstract. TBE (rigger-By-Example) is proposed to assist users in writing trigger rules. TBE is a graphical trigger rule specification language and system to help...
Dongwon Lee, Wenlei Mao, Henry Chiu, Wesley W. Chu
Abstract. One of the obstacles that hinder database trigger systems from their wide deployment is the lack of tools that aid users in creating trigger rules. Similar to understanding and specifying...
Price Points and Price Rigidity (2007)
Levy, Daniel, Lee, Dongwon, Chen, Allan (Haipeng), Kauffman, Robert, Bergen, Mark
We offer new evidence on the link between price points and price rigidity using two datasets. One is a large weekly transaction price dataset, covering 29 product categories over an eight-year period...
Production And Application Advanced W-based Nanopowders (2007)
Vasilyeva, Katerina, Tolochko, Oleg, Kaidash, Eugeniy, Kim, Dongsoo, Lee, Dongwon
Low agglomerated tungsten disulfide nanoparticles with mean diameter in range of 20 - 80 nm have been successfully produced by aerosol synthesis method. The particles size was changed by process...
Production And Application Advanced W-based Nanopowders (2007)
Vasilyeva, Katerina, Tolochko, Oleg, Kaidash, Eugeniy, Kim, Dongsoo, Lee, Dongwon
Low agglomerated tungsten disulfide nanoparticles with mean diameter in range of 20 - 80 nm have been successfully produced by aerosol synthesis method. The particles size was changed by process...
Production And Application Advanced W-based Nanopowders (2007)
Vasilyeva, Katerina, Tolochko, Oleg, Kaidash, Eugeniy, Kim, Dongsoo, Lee, Dongwon
Low agglomerated tungsten disulfide nanoparticles with mean diameter in range of 20 - 80 nm have been successfully produced by aerosol synthesis method. The particles size was changed by process...
Semantic web-service discovery and composition using flexible parameter matching (2007)
Seog-chan Oh, Jung-woon Yoo, Hyunyoung Kil, Dongwon Lee
When there are a large number of web services available and no single service satisfies the given request, one has to compose multiple web services to fulfill the goal, considering syntactic and...
Adaptive Sorted Neighborhood Methods for Efficient Record Linkage (2007)
Su Yan, Dongwon Lee, Min-yen Kan, C. Lee Giles
Traditionally, record linkage algorithms have played an important role in maintaining digital libraries - i.e., identifying matching citations or authors for consolidation in updating or integrating...
HICCUP: Hierarchical Clustering Based Value Imputation using Heterogeneous Gene Expression (2007)
Qiankun Zhao, Prasenjit Mitra, Dongwon Lee, Jaewoo Kang
A novel microarray value imputation method, HICCUP1, is presented. HICCUP improves upon existing value imputation methods in the several ways. (1) By judiciously integrating heterogeneous microarray...
Pragmatic xml access control using off-theshelf rdbms (2007)
Abstract. As the XML model gets more popular, new needs arise to specify access control within XML model. Various XML access control models and enforcement methods have been proposed recently....
Automaton Segmentation: A New Approach to Preserve Privacy (2007)
Fengjun Li, Bo Luo, Peng Liu, Dongwon Lee, Chao-hsien Chu
A Distributed Information Brokering System (DIBS) is a peer-to-peer overlay network that comprises diverse data servers and brokering components helping client queries locate the data server(s). Many...
Are Your Citations Clean? (2007)
Dongwon Lee, Jaewoo Kang, Prasenjit Mitra, C. Lee Giles, Byung-Won On
If the are, only one can refer to a distinct document; if not, many can refer to the same document.
Abstract Metadata (i.e., data describing about data) of digital objects plays an important role in digital libraries and archives, and thus its quality needs to be maintained well. However, as...
Semantic web-service discovery and composition using flexible parameter matching (2007)
Seog-chan Oh, Jung-woon Yoo, Hyunyoung Kil, Dongwon Lee
When there are a large number of web services available and no single service satisfies the given request, one has to compose multiple web services to fulfill the goal, considering syntactic and...
Measuring Conference Quality by Mining Program Committee Characteristics (2007)
Ziming Zhuang, Ergin Elmacioglu, Dongwon Lee, C. Lee Giles
- Digital Libraries provide effective recommendation and filtering tools - Computer Science is unique in its publication practice: often value conferences> journals constantly increasing number of...
BEHAVIOR-INDUCTIVE DATA MODELING FOR ENTERPRISE INFORMATION SYSTEMS (2007)
Kim, Namgyu, Lee, Dongwon, Moon, Songchun
Traditional database design tools commonly have a restriction that their users are assumed to have expertise in entity-relationship (ER) modeling. What we have found is that once an enterprise-wide...
Byung-won On, Ergin Elmacioglu, Dongwon Lee, Jaewoo Kang, Jian Pei
We study how to resolve entities that contain a group of related elements in them (e.g., an author entity with a list of citations or an intermediate result by GROUP BY SQL query). Such entities,...
Improving grouped-entity resolution using quasi-cliques (2006)
Byung-won On, Ergin Elmacioglu, Dongwon Lee, Jaewoo Kang, Jian Pei
The entity resolution (ER) problem, which identifies duplicate entities that refer to the same real world entity, is essential in many applications. In this paper, in particular, we focus on...
Improving grouped-entity resolution using quasi-cliques (2006)
Byung-won On, Ergin Elmacioglu, Dongwon Lee, Jaewoo Kang, Jian Pei
The entity resolution (ER) problem, which identifies duplicate entities that refer to the same real world entity, is essential in many applications. In this paper, in particular, we focus on...
� I am probably a qualified person to give a talk on this topic … because � I’m still STRUGGLING to publish � I do get rejections a lot:-( � I’m still learning from failures �...
SHOULD WE EXPECT LESS PRICE RIGIDITY IN INTERNET-BASED SELLING? (2005)
Robert J. Kauffman, Dongwon Lee
Price rigidity involves the observation of prices that do not change with the regularity predicted by standard economic theory. It is a topic of long-standing interest for firms, industries and the...
Effective and scalable solutions for mixed and split citation problems in digital libraries (2005)
Dongwon Lee, Byung-won On, Jaewoo Kang, Sanghyun Park
In this paper, we consider two important problems that commonly occur in bibliographic digital libraries, which seriously degrade their data qualities: Mixed Citation (MC) problem (i.e., citations of...
S.: ”Flexible Web Services Discovery and Composition using SATPlan and A* Algorithms (2005)
Seog-chan Oh, Dongwon Lee, Soundar Kumara
Abstract. Agents with web services based interfaces have service description encoded in machine-understandable formats so that they can easily interact with other agents. Therefore, locating right...
An efficient location encoding method based on hierarchical administrative district (2005)
Sangyoon Lee, Sanghyun Park, Woo-cheol Kim, Dongwon Lee
Abstract. Due to the rapid development in mobile communication technologies, the usage of mobile devices such as cell phone or PDA becomes increasingly popular. As different devices require different...
The WIDM [2] (pronounced like “Widom”) was originally (2005)
Angela Bonifati, Dongwon Lee, Carolina At Greensboro, Cyrus Shahabi (usc
In this report, to our best recollection, we provide
Comparative Study of Name Disambiguation Problem using a Scalable Blocking-based Framework (2005)
Byung-won On, Dongwon Lee, Jaewoo Kang, Prasenjit Mitra
In this paper, we consider the problem of ambiguous author names in bibliographic citations, and comparatively study alternative approaches to identify and correct such name variants (e.g.,...
Pollock: Automatic Generation of Virtual Web Services from Web Sites (2005)
Yi-hsuan Lu, Yoojin Hong, Jinesh Varia, Dongwon Lee
As the usage of Web Services proliferates dramatically, new tools to help quickly generate web services are needed. In this paper, we propose a methodology that helps to automatically generate Web...
A Comparative Illustration of AI Planning-based Web Services Composition (2005)
As the number of available web services proliferates, finding right web services to fulfill a given goal becomes an important task. In particular, a problem of combining multiple web services to...
Deep set operators for xquery (2005)
Bo Luo, Dongwon Lee, Wang-chien Lee, Peng Liu
There are three set operators defined in XQuery, namely union, intersect and except. They take node sequences as operands, in which each node is identified by its node-ID and treated as an atomic...
BF*: Web services discovery and composition as graph search problem (2005)
Seog-chan Oh, Byung-won On, Eric J. Larson, Dongwon Lee
When there are a large number of web services available (e.g., in the range of 1,000- 10,000), it is non-trivial to quickly find web services satisfying the given request. Furthermore, when no single...
A Comparative Illustration of AI Planning-based Web Services Composition (2005)
As the number of available web services proliferates, finding right web services to fulfill a given goal becomes an important task. In particular, a problem of combining multiple web services to...
doi: 10.1145/1461928.1461958 Oracle, Where Shall I Submit My Papers? (2005)
prank 1 on the conference – World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI) 10 – known for sending unsolicited invitation emails to people in academia. The MIT students...
New ion-guide for the production of beams of neutron-rich nuclei between Z = 20 - 28 (2004)
Perajarvi, Kari, Cerny, Joe, Hakala, Jani, Huikari, Jussi, Jokinen, Ari, Karvonen, Pasi, ...
QFilter: Fine-Grained Run-Time XML Access Control via NFA-based Query Rewriting (2004)
Bo Luo, Dongwon Lee, Wang-chien Lee, Peng Liu
At present, most of the state-of-the-art solutions for XML access controls are either (1) document-level access control techniques that are too limited to support fine-grained security enforcement;...
A Flexible Framework for Architecting XML Access Control Enforcement Mechanisms (2004)
Bo Luo, Dongwon Lee, Wang-chien Lee, Peng Liu
Abstract. Due to the growing interest in XML security, various access control schemes have been proposed recently. However, little effort has been put forth to facilitate a uniform analysis and...
System Support for Name Authority Control (2004)
Yoojin Hong, Byung-won On, Dongwon Lee
Abstract. In maintaining Digital Libraries, having bibliographic data up-to-date is critical, yet often minor irregularities may cause information isolation. Unlike documents for which various kinds...
Pase: Locating online copy of scientific documents effectively (2004)
Abstract. The need for fast and vast dissemination of research results has led a new trend such that more number of authors post their documents to personal or group Web spaces so that others can...
Should We Expect Less Price Rigidity in the Digital Economy (2004)
Robert J. Kauffman, Dongwon Lee
Price rigidity, a phenomenon where prices do not change with the regularity predicted by standard economic theory, is a topic of long-standing interest in firms, industries and the economy as a...
Book Review Section: Thinking About Information Technologies in the New Digital Economy (2003)
Nicholas L. Ball, Baba Prasad, Robert J. Kauffman, Dongwon Lee, Priscilla Arling, Sriram Thirumalai
The Digital Economy relies tremendously on the technologies on which electronic commerce innovations are built. However, today, most senior managers face difficulties as they attempt to formulate...
Thesis (Ph. D.)--University of Southern California, 2003.
Supporting XML Security Models using Relational Databases: A Vision (2003)
Dongwon Lee, Wang-chien Lee, Peng Liu
Abstract. As the secure distribution and sharing of information over the World Wide Web becomes increasingly important, the needs for flexible and efficient support of access control systems...
Solving Schema Conversion Problem between XML and Relational Models: Semantic Approach (2003)
Dongwon Lee, Murali Mani, Wesley W. Chu
Schema conversion problem aims to convert a source schema S in the given model M1 to an equiv-alent target schema T in the desired model M2. In this paper, we especially study schema conversion...
Schema conversion methods between XML and relational models in (2003)
Dongwon Lee, Murali Mani, Wesley W. Chu
Abstract. In this chapter, three semantics-based schema conversion methods are presented:
Schema Conversion Methods between XML and Relational Models (2003)
Dongwon Lee Penn, Dongwon Lee, Murali Mani, Wesley W. Chu
In this chapter, three semantics-based schema conversion methods are presented: 1) CPI converts an XML schema to a relational schema while preserving semantic constraints of the original XML schema,...
Query relaxation for XML model / (2002)
Thesis (Ph. D.)--University of California, Los Angeles, 2002.
Counting Relaxed Twig Matches in a Tree (2002)
Dongwon Lee, Divesh Srivastava
Abstract. We consider the problem of accurately estimating the number of approximate XML answers for a given query, and propose an efficient method that (1) accurately computes selectivity estimates...
NeT & CoT: Inferring XML schemas from relational world (2002)
Dongwon Lee, Murali Mani, Frank Chiu, Wesley W. Chu
With XML emerging as the data format of the Internet era, there is a substantial increase in the amount of data encoded in XML. However, the majority of everyday data is still stored and maintained...
XML to Relational Conversion Using Theory of Regular Tree Grammars (2002)
In this paper, we study the different steps of translation from XML to relational mod-els, while maintaining semantic constraints. Our work is based on the theory of regular tree grammars, which...
Chu: Effective Schema Conversions between XML and Relational Models (2002)
Dongwon Lee, Murali Mani, Wesley W. Chu
the data format of the Internet era, there is an increasing need to efficiently store and query XML data. At the same time, as requirements change, we expect a substantial amount of conventional...
XML to Relational Conversion Using Theory of Regular Tree Grammars (2002)
In this paper, we study the different steps of translation from XML to relational models, while maintaining semantic constraints. Our work is based on the theory of regular tree grammars, which...
NeT & CoT: Translating relational schemas to XML schemas using semantic constraints (2002)
Dongwon Lee, Murali Mani, Frank Chiu, Wesley W. Chu
Two algorithms, called NeT and CoT, to translate relational schemas to XML schemas using various semantic constraints are presented. The XML schema representation we use is a language-independent...
NeT & CoT: Inferring XML schemas from relational world (2002)
Dongwon Lee, Murali Mani, Frank Chiu, Wesley W. Chu
With XML emerging as the data format of the Internet era, there is a substantial increase in the amount of data encoded in XML. However, the majority of everyday data is still stored and maintained...
NeT & CoT: Translating Relational Schemas to XML Schemas Using Semantic Constraints (2002)
Dongwon Lee, Murali Mani, Frank Chiu, Wesley W. Chu
Two algorithms, called NeT and CoT, to translate relational schemas to XML schemas using various semantic constraints are presented. The XML schema representation we use is a language-independent...
Taxonomy of XML Schema Languages (2001)
Montréal Québec, Makoto Murata, Dongwon Lee, Murali Mani
comparing XML schema languages; Exposition: Schema languages; Contrasting
Taxonomy of xml schema languages using formal language theory (2001)
Makoto Murata, Dongwon Lee, Murali Mani, Murali Mani
On the basis of regular tree languages, we present a formal framework for XML schema languages. This framework helps to describe, compare, and implement such schema languages. Our main results are as...
Towards intelligent semantic caching for web sources (2001)
Dongwon Lee, Wwc)$cs. Ucla. Edu
Abstract. An intelligent semantic caching scheme suitable for web sources is presented. Since web sources typically have weaker querying capabilities than conventional databases, existing semantic...
CPI: Constraints-Preserving Inlining Algorithm for Mapping XML DTD to Relational Schema (2001)
As Extensible Markup Language (XML) is emerging as the data format of the In-ternet era, there are increasing needs to efficiently store and query XML data. One path to this goal is transforming XML...
Semantic Data Modeling using XML Schemas (2001)
Murali Mani, Dongwon Lee, Richard R. Muntz
(mani, dongwon,munz}cs. ucla. edu Abstract. Most research on XML has so far largely neglected the data modeling aspects of XML schemas. In this paper, we attempt to make a systematic approach to data...
Nesting-based Relational-to-XML Schema Translation (2001)
Dongwon Lee, Murali Mani, Frank Chiu, Wesley W. Chu
XML is rapidly becoming one of the most widely adopted technologies for information exchange and representation on the World-Wide Web. With XML emerging as the data format of the Internet era, there...
CPI: Constraints-Preserving Inlining Algorithm for Mapping XML DTD to Relational Schema (2001)
As Extensible Markup Language (XML) is emerging as the data format of the Internet era, there are increasing needs to efficiently store and query XML data. One path to this goal is transforming XML...
Towards intelligent semantic caching for web sources (2001)
Abstract. An intelligent semantic caching scheme suitable for web sources is presented. Since web sources typically have weaker querying capabilities than conventional databases, existing semantic...
Semantic Data Modeling using XML Schemas (2001)
Murali Mani, Dongwon Lee, Richard R. Muntz
Abstract. Most research on XML has so far largely neglected the data modeling aspects of XML schemas. In this paper, we attempt to make a systematic approach to data modeling capabilities of XML...
Taxonomy of xml schema languages using formal language theory (2001)
Makoto Murata, Dongwon Lee, Sun Microsystems
On the basis of regular tree grammars, we present a formal framework for XML schema languages. This framework helps to describe, compare, and implement such schema languages in a rigorous manner. Our...
Constraints-preserving Transformation from XML Document Type Definition to Relational Schema (2000)
Abstract. As Extensible Markup Language (XML) [5] is emerging as the data format of the internet era, there are increasing needs to efficiently store and query XML data. One way towards this goal is...
Comparative Analysis of Six XML Schema Languages (2000)
As XML [5] is emerging as the data format of the inter-net era, there is an substantial increase of the amount of data in XML format. To better describe such XML data structures and constraints,...
TBE: A Graphical Interface for Writing Trigger Rules in Active Databases (2000)
Dongwon Lee, Wenlei Mar, Henry Chiu, Wesley W. Chu
One of the obstacles that hinder trigger systems from their wide deployment is the lack of tools that aid users to create trigger rules. Similar to understanding and specifying database queries in...
Reasoning about XML Schema Languages using Formal Language Theory (2000)
Dongwon Lee, Murali Mani, Makoto Murata
A mathematical framework using formal language theory to describe and compare XML schema languages is presented. Our framework uses the work in two related areas-- regular tree languages [CDG 97] and...
Comparative Analysis of Six XML Schema Languages (2000)
Dongwon Lee Wesley, Dongwon Lee, Wesley W. Chu
As XML [5] is emerging as the data format of the internet era, there is an substantial increase of the amount of data in XML format. To better describe such XML data structures and constraints,...
Constraints-preserving Transformation from XML Document Type Definition to Relational Schema (2000)
As Extensible Markup Language (XML) [5] is emerging as the data format of the internet era, more needs to efficiently store and query XML data arise. One way towards this goal is using relational...
TBE: A Graphical Interface For Writing Trigger Rules In Active Databases (2000)
Dongwon Lee, Wenlei Mao, Henry Chiu, Wesley W. Chu
One of the obstacles that hinder trigger systems from their wide deployment is the lack of tools that aid users to create trigger rules. Similar to understanding and specifying database queries in...
Constraints-preserving Transformation from XML Document Type Definition to Relational Schema (2000)
. As Extensible Markup Language (XML) [5] is emerging as the data format of the internet era, there are increasing needs to efficiently store and query XML data. One way towards this goal is using...
Comparative Analysis of Six XML Schema Languages (2000)
As XML [5] is emerging as the data format of the internet era, there is an substantial increase of the amount of data in XML format. To better describe such XML data structures and constraints,...
TBE: A Graphical Interface for Writing Trigger Rules in Active Databases (2000)
Dongwon Lee, Wenlei Mao, Henry Chiu, Wesley W. Chu
Triggers have been adopted as an important database feature and implemented by most major database vendors. Despite their diverse potential usages, one of the obstacles that hinder the trig-gers from...
Comparative Analysis of Six XML Schema Languages (2000)
Abstract: As XML [5] is emerging as the data format of the internet era, there is an substantial increase of the amount of data in XML format. To better describe such XML data structures and...
Fast retrieval of similar subsequences in long sequence databases (1999)
Sanghyun Park, Dongwon Lee, Wesley W. Chu
shpark,dongwon,wwc¡ Although the Euclidean distance has been the most popular similarity measure in sequence databases, recent techniques prefer to use high-cost distance functions such as the time...
Fast retrieval of similar subsequences in long sequence databases (1999)
Sanghyun Park, Dongwon Lee, Wesley W. Chu
Many Indexing techniques have been proposed to support the fast retrieval of similar sequences using the Euclidean distance metric. Since the Euclidean distance metric requires that two sequences be...
Semantic caching via query matching for web sources (1999)
A semantic caching scheme suitable for wrappers wrapping web sources is presented. Since the web sources have typically weaker querying capabilities than conventional databases, existing semantic...
Fast retrieval of similar subsequences in long sequence databases (1999)
Sanghyun Park, Dongwon Lee, Wesley W. Chu
Although the Euclidean distance has been the most popular similarity measure in sequence databases, recent techniques prefer to use high-cost distance functions such as the time warping distance and...
TBE: Trigger-By-Example (1999)
Dongwon Lee, Wenlei Mao, Wesley W. Chu
. TBE (Trigger-By-Example) is proposed to assist users in writing trigger rules. TBE is a graphical trigger rule specification language and system to help users understand and specify active database...
Fast Retrieval of Similar Subsequences in Long Sequence Databases (1999)
Sanghyun Park, Dongwon Lee, Wesley W. Chu
Although the Euclidean distance has been the most popular similarity measure in sequence databases, recent techniques prefer to use high-cost distance functions such as the time warping distance and...
A Semantic Caching Scheme for Wrappers in Web Databases (1999)
We present a new semantic caching scheme suitable for wrappers in web databases. Since the web sources in web databases have typically weaker querying capabilities than conventional databases, it is...
TBE: Trigger-By-Example (1999)
Dongwon Lee, Wenlei Mao, Wesley W. Chu
Triggers have been adopted as an important database feature and implemented by most major database vendors. Despite their diverse potential usages, one of the obstacles that hinder the triggers from...
A Graphical Interface for Writing Trigger Rules in Active Databases (1999)
Dongwon Lee, Wenlei Mao, Henry Chiu, Wesley W. Chu
Triggers have been adopted as an important database feature and implemented by most major database vendors. Despite their diverse potential usages, one of the obstacles that hinder the triggers from...
Fast Retrieval of Similar Subsequences in Long Sequence Databases (1999)
Sanghyun Park, Dongwon Lee, Wesley W. Chu
Many Indexing techniques have been proposed to support the fast retrieval of similar sequences using the Euclidean distance metric. Since the Euclidean distance metric requires that two sequences be...
Generating Advanced Query Interfaces (1998)
Dongwon Lee, Divesh Srivastava, Dimitra Vista
With the increasing popularity oftheWorld Wide Web, the number of information sources providing access to various types of data has increased considerably. While simple data retrieval queries are...
Conjunctive Point Predicate-based Semantic Caching for Wrappers in Web Databases (1998)
A novel semantic caching scheme suitable for web database environments is proposed. In our scheme, tasks for query translation/capability mapping (named as "query naturalization")...
Conjunctive Point Predicate-based Semantic Caching for Wrappers in Web Database (1998)
A semantic caching scheme suitable for web database environments is proposed. In our scheme, tasks for query translation /capability mapping (named as query naturalization) between wrappers and web...
Generating Advanced Query Interfaces (1998)
Dongwon Lee Divesh, Dongwon Lee, Divesh Srivastava, Dimitra Vista
With the increasing popularity of the World Wide Web, the number of information sources providing access to various types of data has increased considerably. While simple data retrieval queries are...
Conjunctive Point Predicate-based Semantic Caching for Web Databases (1998)
A novel semantic caching scheme suitable for web database environments is proposed. In our scheme, tasks for query translation/capability mapping (named as "query naturalization") between...
Generating Advanced Query Interfaces (1998)
Dongwon Lee, Divesh Srivastava, Dimitra Vista, Rm B
g the burden from users of having to know the interface and query language specifics of the individual information sources. The tool accepts as input a high-level specification of the interface and...
Price Points and Price Rigidity
Daniel Levy, Dongwon Lee, Haipeng Allan Chen, Robert J. Kauffman, Mark Bergen
We offer new evidence on the link between price points and price rigidity using two datasets. One is a large weekly transaction price dataset, covering 29 product categories over an eight-year period...
Price Points and Price Rigidity
Levy, Daniel, Lee, Dongwon, Chen, Allan (Haipeng), Kauffman, Robert, Bergen, Mark
We offer new evidence on the link between price points and price rigidity using two datasets. One is a large weekly transaction price dataset, covering 29 product categories over an eight-year period...
Price Points and Price Rigidity
Daniel Levy, Dongwon Lee, Haipeng Chen, Robert Kauffman, Mark Bergen
We study the link between price points and price rigidity, using two datasets containing over 100 million observations. We find that (i) 9 is the most frequently used price-ending for the penny,...
Detection of hydrogen peroxide with chemiluminescent micelles
Lee, Dongwon, Erigala, Venkata R, Dasari, Madhuri, Yu, Junhua, Dickson, Robert M, Murthy, Niren
The overproduction of hydrogen peroxide is implicated in the progress of numerous life-threatening diseases and there is a great need for the development of contrast agents that can detect hydrogen...