Research

Security in Information Systems

• Economics of User Segmentation, Profiling, and Detection in Security

• Information Security in Supply Chains: Impact of Interconnectivity and Information Sharing on Incentives to Invest

• Risk Management When Risks of Loss are Correlated and the Ability to Prove Loss is Imperfect

• Maintaining Knowledge-based Systems Against Adversarial Attacks: A Differential Game Approach

• When Hackers Talk: Maintaining Security Systems in the Presence of Variable Attack Rate and Information Dissemination

• Security Patch Management

• Information Security Control Resources in Organizations: Multidimensionality of the Construct and a Nomological Model

• Network Externalities, Layered Protection and IT Security Risk Management

• The Management of Intrusion Detection: Configuration, Inspection, and Investment

• Impact of Competition on Firms' Decisions to Outsource Security

• An Analysis of the Impact of Passenger Profiling for Transportation Security

• Cyber Security Risk Management: Public Policy Implications of Correlated Risk and Imperfect Ability to Prove Loss

• Configuration of and Interaction Between Information Security Technologies: The Case of Firewalls and Intrusion Detection Systems

• Configuration of Detection Software: A Comparison of Decision and Game Theory Approaches

• The Value of Intrusion Detection Systems (IDSs) in Information Technology Security Architecture

• Intrusion-Detection Policies for IT Security Breaches

• Evaluation of Intrusion Detection Systems under an Inspection Constraint

     Investments in IT Security

• Security Investment Strategies for Supply Chain Partnering Firms: Effects of Physical Connectivity and Shared Information Assets

• Security Investment with Imperfectly Substitutable Information: A Two-Firm Analysis

• IT Security Risk Management through Investments and Insurance: Impact of Interdependent Risk and Imperfect Detection

• Managing IT Security Risk when Cyber Insurance Market is Immature

• Information Security Investment Strategies in Supply Chain Firms: Interplay between Breach Propagation, Shared information Assets and Chain Topology

    Configuring Security Mechanisms

• Information Security Management: The Case of Intrusion Detection

• A Cost-based Comparison and Configuration of IDSs under Active or Passive Response

• Intrusion Detection Policies for IT Security Breaches
  * Best paper award at 13th Workshop on Information Systems and Technology (2003)

• Improving Intrusion Prevention Models: Dual-Threshold and Dual-Filter Approaches

• Intrusion prevention in Information Systems: Reactive and Proactive Responses

Data Privacy

• Privacy in E-commerce Channels: Impacts of Customer Addressability and Search Costs

• Privacy Seal and Price Premium
  *Nominated for Best Paper in Track award at HICSS (2006)

    Preserving Privacy When Sharing Data

• Maximizing Accuracy of Shared Databases when Concealing Sensitive Patterns

• Minimizing Information Loss and Preserving Privacy
  * Nominated for Best Paper award at WITS (2004)

• Maximizing Accuracy When Hiding Sensitive Itemsets in Shared Databases: An Efficient Heuristic Based on Repeated Sorting
  * Runner-up for Best Paper award at CIST (2005)

• Exploiting Hierarchical Problem Structure to Effectively Sanitize Large Transactional Databases
  *Nominated for Best Paper award at WITS (2006)

• Maximizing Accuracy when Modifying Transactional Databases to Hide Sensitive Association Rules

• Privacy Preservation Techniques for Distributed Transactional Databases
  *Nominated for Best Paper award at WITS (2007)

• Protecting Privacy against Re-identification by Record Linkage: A Tree-Based Bounded Swapping Approach for Numeric Data

• Optimal and Heuristic Approaches to Sanitizing Large Transactional Databases

• A Data Perturbation Approach to Privacy Protection in Data Mining

Supply Chain Managment

    Partially Observed Inventory Systems

• Partially Observed Inventory Systems

• Partially Observed Inventory Systems: The Case of Zero Balance Walk

• On the Optimal Control of Partially Observed Inventory Systems

• Inventory Problems with Partially Observed Demands and Lost Sales

• Computation of Approximate Optimal Policies in Partially Observed Inventory Model with Rain Checks

• Numerical Analysis of Partially Observable Inventory System: Economic Loss from Mean Based Policy

• Assessing the Loss Due to Parsimony

    Partially Observed Demand Systems

• A Multiperiod Newsvendor Problem with Partially Observed Demand

• Bayesian and Adaptive Controls for a Newsvendor Facing Exponential Demand

• Optimal Policy and Value of Information in an Inventory Model with Lost Sales and Demand Updates

    Information Delays

• Optimality of Base Stock and (s,S) Policies for Inventory Problems with Information Delays

• Optimal Ordering Policies for Inventory Problems with Dynamic Information Delays

• Optimal Ordering Policies for Stochastic Inventory Problems with Observed Information Delays

    Transshipments

• Optimal Transshipments and Orders: A Tale of Two Competing Retailers

• Inventory Sharing with Positive Transshipment and Replenishment Lead Times

    Contracting and Coordination

• Coordination of Supply Chains with Risk-Averse Agents

*Winner of the Wickham Skinner Best Paper Award (2004)

• Channel Coordination with a Risk-Neutral Supplier and a Downside-Risk-Averse Retailer

• On the Selection of Supply Chain Coordinating Contracts: The Role of Capital Constraints

• Contracting and Coordination under Asymmetric Production Cost Information

• Coordination Mechanism for the Supply Chain with Leadtime Consideration and Price-Dependent Demand

    Service Levels

• A Supply Chain with a Service Requirement for Each Market Signal

• Information Updated Supply Chain with Service-Level Constraints

• A Two-Stage Newsvendor Problem with a Long-Term Service Target

• A Two-Stage Newsvendor Problem with a Service Constraint

    General

• Are Base-stock Policies Optimal in Inventory Problems with Multiple Delivery Modes?

• Optimality and Non-optimality of the Base-stock Policy in Inventory Problems with Multiple Delivery Modes

• Periodic-Review Inventory Model with Three Consecutive Delivery Modes and Forecast Updates

• The Machine Maintenance and Sale Age Model of Kamien and Schwartz Revisited

• Production and Transportation Integration for a Make-to-Order Manufacturing Company with a Commit-to-Delivery Business Mode

• Demand Forecasting for Rediform Inc.

• Forecasting Sales For Heating, Ventilating and Air Conditioning (HVAC) Products

• Cooperative Advertising and Pricing in a Dynamic Stochastic Supply Chain: Feedback Stackelberg Strategies

• Procurement Flexibility under Price Uncertainty