Samson Tu

ONYX: An Architecture for Planning in Uncertain Environments (2008)

Samson Tu, John Williams, Branimir Slklc

The ONYX program is designed to fill the need for planning in application areas where traditional planning methodology is difficult to apply. While the program being developed will assist with the...

Querying the Semantic Web with SWRL (2008)

Samson Tu, Csongor Nyulas, Amar Das, Mark Musen

Abstract. The SWRLTab is a development environment for working with SWRL rules in Protégé-OWL. It supports the editing and execution of SWRL rules. It also provides mechanisms to allow...

Decision Support, Knowledge Representation and Management in Medicine (2008)

Mor Peleg, Ph. D, Samson Tu

Objective: Clinical decision-support systems (CDSSs) are being recognized as important tools for improving quality of care. In this paper, we review the literature to find trends in CDSSs that were...

1 Sharable Representation of Clinical Guidelines in GLIF: Relationship to the Arden Syntax (2008)

Mor Peleg, Ph. D, Aziz A. Boxwala, Ph. D, Elmer Bernstam, Samson Tu, ...

2 Clinical guidelines are intended to improve the quality and cost effectiveness of patient care. Integration of guidelines into electronic medical records and order-entry systems, in a way that...

Efficiently Querying Relational Databases Using OWL and SWRL (2008)

Ravi Shankar, Samson Tu, Csongor Nyulas, Amar Das

Abstract. For the foreseeable future, most data will continue to be stored in relational databases. To work with these data in ontology-based applications, tools and techniques that bridge the two...

Using Semantic Web Technologies for Knowledge- Driven Querying of Biomedical Data (2008)

Ravi Shankar, Samson Tu, Csongor Nyulas, Dave Parrish, Mark Musen, Amar Das

Abstract. Software applications that work with biomedical data have significant knowledge-management requirements. Formal knowledge models and knowledge-based methods can be very useful in meeting...

Guideline Classification to Assist Modeling, Authoring, Implementation and Retrieval (2007)

Elmer Bernstam, Nachman Ash, Mor Peleg, Samson Tu, Aziz A. Boxwala, Peter Mork, ...

The National Guideline Clearinghouse (NGC) and its guideline classification system are significant contributions to the study of clinical practice guidelines (CPGs) and their incorporation into...

A Three-Layer Domain Ontology for Guideline Representation and Sharing (2007)

Qing Zeng, Samson Tu, Robert A. Greenes, Edward H. Shortliffe, Ph. D, Ph. D, ...

GLIF is a representation language that was developed to facilitate sharing of clinical guidelines. The latest draft GLIF version, GLIF 3, aims at enabling guideline specifications to be not only...

Address Correspondence to: (2007)

Aziz A. Boxwala, Samson Tu, Qing Zeng, Omolola Ogunyemi, Dongwen Wang, Vimla L. Patel, ...

InterMed is a collaboration among research groups from Stanford, Harvard, and Columbia universities. InterMed’s primary goal has been to develop a sharable language that could serve as a standard...

A Three-Layer Domain Ontology for Guideline Representation and Sharing (2007)

Qing Zeng, Samson Tu, Robert A. Greenes, Edward H. Shortliffe, Ph. D, Ph. D, ...

GLIF is a representation language that was developed to facilitate sharing of clinical guidelines. The latest draft GLIF version, GLIF 3, aims at enabling guideline specifications to be not only...

Please send all correspondences to: (2007)

Mark Musen, Yuval Shahar, Yuval Shahar, John Dawes, John Dawes, James Winkles, ...

PROTÉGÉ is a metalevel program that generates knowledge-acquisition tools that are based on the method of skeletal-plan refinement. In this paper, we propose a flexible and extensible architecture...

Support for Guideline Development through Error Classification and Constraint Checking (2007)

Mor Peleg, Vimla L. Patel, D. Sc, Vincenza Snow, Samson Tu, Christel Mottur-pilson, ...

Clinical guidelines aim to eliminate clinician errors, reduce practice variation, and promote best medical practices. Computer-interpretable guidelines (CIGs) can deliver patient-specific advice...

ABSTRACT Protocol-Based Therapy Management for Graft-Versus-Host Disease (2007)

Samson Tu, Yuval Shahar, Mark Musen

We apply the method of episodic skeletal-plan refinement to the task of managing graftversus-host patients who are enrolled in a clinical-trial protocol. We show how the task can be decomposed into...

Page 1 of 37 pages. Peleg et al., A comparison study of guideline models Comparing Models of Decision and Action for Guideline-Based Decision Support: a Case-Study Approach (Part 1 of 2) Running head: Comparing guideline decision and action models (2007)

Mor Peleg, Samson Tu, Jonathan Bury, Paolo Ciccarese, John Fox, ...

Page 2 of 37 pages. Peleg et al., A comparison study of guideline models We compared six computer-interpretable guideline models to understand their commonalities and differ-ences. We sought to...

Preliminary Evaluation of a Guideline Classification System (2007)

Elmer Bernstam, Nachman Ash, Mor Peleg, Samson Tu, Edward H. Shortliffe, Robert A. Greenes, ...

Abstract In a previous paper, we presented a proposed expansion of the National Guideline Clearinghouse (NGC) classification 1. We performed a preliminary evaluation of the classification based on...

Running title Representation of sharable guidelines Corresponding author (2007)

Samson Tu, Qing Zeng, Mor Peleg, Omolola Ogunyemi, Robert A. Greenes, Edward H. Shortliffe, ...

1 Clinical guidelines are being developed for the purpose of reducing medical errors and unjustified variations in medical practice, and for basing medical practice on evidence. Encoding guidelines...

1 Sharable Representation of Clinical Guidelines in GLIF: Relationship to the Arden Syntax (2007)

Mor Peleg, Aziz A. Boxwala, Elmer Bernstam, Samson Tu, Robert A. Greenes, Ph. D, ...

2 Clinical guidelines are intended to improve the quality and cost effectiveness of patient care. Integration of guidelines into electronic medical records and order-entry systems, in a way that...

Using features of arden syntax with object-oriented medical data models for guideline modeling (2007)

Mor Peleg, Omolola Ogunyemi, Samson Tu, Aziz A. Boxwala, Qing Zeng, Robert A. Greenes, ...

Computer-interpretable guidelines (CIGs) can deliver patient-specific decision support at the point of care. CIGs base their recommendations on eligibility and decision criteria that relate medical...

Sharable Computer-Based Clinical Practice Guidelines: Rationale, Obstacles, Approaches, and Prospects (2007)

Robert A. Greenes, Mor Peleg, Ph. D. B, Aziz Boxwala, Ph. D. A, Ph. D. A, ...

Clinical practice guideline automation at the point of care is of growing interest, yet most guidelines are authored in unstructured narrative form. Computer-based execution depends on a formal...

Comparing Computer-Interpretable Guideline Models: A Case-Study Approach (2002)

Mor Peleg, Samson Tu, Jonathan Bury, John Fox, Robert A. Greenes, ...

Objectives: Many groups are developing computer-interpretable clinical guidelines (CIGs) for use during clinical encounters. CIGs use "Task-Network Models" for representation but differ in...

Preliminary Evaluation of a Guideline Classification System (2001)

Bernstam, Elmer, Ash, Nachman, Peleg, Mor, Tu, Samson, Shortliffe, Edward H., Greenes, Robert A.

In a previous paper, we presented a proposed expansion of the National Guideline Clearing-house (NGC) classification1. We performed a preliminary evaluation of the classification based on 100...

Handling expressiveness and comprehensibility requirements in GLIF3 (2001)

Mor Peleg, Ph. D. A, Aziz A. Boxwala, Samson Tu, Ms. A, Robert A. Greenes, ...

Clinical guidelines are aimed at standardizing patient care and improving its quality and cost effectiveness. Guidelines represented in a computer-interpretable (CI) format can be used to provide...

GLIF3: The Evolution of a Guideline Representation Format (2000)

Mor Peleg, Aziz A. Boxwala, Omolola Ogunyemi, P Qing Zeng, Samson Tu, Ronilda Lacson, ...

ion Levels GLIF3 enables modeling of guidelines at three levels of abstraction: A. Conceptual level. Guidelines at this level are represented as flowcharts that can be used for browsing, through...

Integrating a Modern Knowledge-Based System Architecture with a Legacy VA Database: The ATHENA and EON Projects at Stanford (1999)

Aneel Advani, Samson Tu, Martin O'Connor, Robert Coleman, Mary K. Goldstein, Mark Musen

ion Output: Guideline-Based Treatment Advice Guideline KB Server: Protg PSM Guideline Interpreter: EON/PCA PSM Guideline-Based Quality Assessment: MedCritic PSM VA Medical Record: VISTA/ DHCP EndUser...

Domain Modeling with Integrated Ontologies: Principles for Reconciliation and Reuse (1997)

Aneel Advani, Samson Tu, Mark Musen

In recent years, modeling knowledge in reusable domain ontologies has become a central focus in the knowledge-representation community. We have constructed an integrated medical domain ontology for...

Ontologies and the Configuration of Problem-Solving Methods (1996)

Rudi Studer Henrik, Henrik Eriksson, John Gennari, Samson Tu, Dieter Fensel, Mark Musen

Problem-solving methods model the problem-solving behavior of knowledge-based systems. The PROTG-II framework includes a library of problem-solving methods that can be viewed as reusable components....

Ontologies and the Configuration of Problem-Solving Methods (1996)

Rudi Studer, Henrik Eriksson, John Gennari, Samson Tu, Dieter Fensel, Mark Musen

Problem-solving methods model the problem-solving behavior of knowledge-based systems. The PROTÉGÉ-II framework includes a library of problem-solving methods that can be viewed as reusable...

A multiple-method knowledge-acquisition shell for the automatic generation of knowledge-acquisition tools (1992)

Angel Puerta, John Egar, Samson Tu, Mark Musen

The use of predefined models of problem-solving methods is receiving considerable attention from researchers in the area of knowledge acquisition. Using these models, developers of...

A Problem-Solving Model for Episodic Skeletal-Plan Refinement (1992)

Mark Musen, Yuval Shahar, Yuval Shahar, John Dawes, John Dawes, James Winkles, ...

PROTG is a metalevel program that generates knowledge-acquisition tools that are based on the method of skeletal-plan refinement. In this paper, we propose a flexible and extensible architecture that...

A Multiple-Method Knowledge-Acquisition Shell for the Automatic Generation of Knowledge-Acquisition Tools (1992)

Angel Puerta, John Egar, Samson Tu, Mark Musen

The use of predefined models of problem-solving methods is receiving considerable attention from researchers in the area of knowledge acquisition. Using these models, developers of...

Comparing Computer-interpretable Guideline Models: A Case-study Approach

Peleg, Mor, Tu, Samson, Bury, Jonathan, Ciccarese, Paolo, Fox, John, Greenes, Robert A., ...

Objectives: Many groups are developing computer-interpretable clinical guidelines (CIGs) for use during clinical encounters. CIGs use “Task-Network Models” for representation but differ in their...

The InterMed Approach to Sharable Computer-interpretable Guidelines: A Review

Peleg, Mor, Boxwala, Aziz A., Tu, Samson, Zeng, Qing, Ogunyemi, Omolola, Wang, Dongwen, ...

InterMed is a collaboration among research groups from Stanford, Harvard, and Columbia Universities. The primary goal of InterMed has been to develop a sharable language that could serve as a...

Preliminary Evaluation of a Guideline Classification System

Bernstam, Elmer, Ash, Nachman, Peleg, Mor, Tu, Samson, Shortliffe, Edward H., Greenes, Robert A.

In a previous paper, we presented a proposed expansion of the National Guideline Clearing-house (NGC) classification1. We performed a preliminary evaluation of the classification based on 100...

The helpful patient record system: problem oriented and knowledge based.

Bayegan, Elisabeth, Tu, Samson

In contrast to existing computerized patient record systems, which merely offer static functionality for storage and presentation, a helpful patient record system is a problem-oriented,...

Support for guideline development through error classification and constraint checking.

Peleg, Mor, Patel, Vimla L., Snow, Vincenza, Tu, Samson, Mottur-Pilson, Christel, Shortliffe, Edward H., ...

Clinical guidelines aim to eliminate clinician errors, reduce practice variation, and promote best medical practices. Computer-interpretable guidelines (CIGs) can deliver patient-specific advice...

Predicting Outbreak Detection in Public Health Surveillance: Quantitative Analysis to Enable Evidence-Based Method Selection

Buckeridge, David L., Okhmatovskaia, Anna, Tu, Samson, O’Connor, Martin, Nyulas, Csongor, Musen, Mark A.

Public health surveillance is critical for accurate and timely outbreak detection and effective epidemic control. A wide range of statistical algorithms is used for surveillance, and important...