Yao-Hua Tan

Yao-Hua Tan
Delft University of Technology | TU · Faculty of Technology, Policy and Management

Professor

About

332
Publications
107,529
Reads
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3,984
Citations
Additional affiliations
September 2009 - present
Delft University of Technology
Position
  • full professor Information and Commuication Technology
June 2001 - August 2009
Vrije Universiteit Amsterdam
Position
  • Professor (Full)
December 1997 - June 1998
University of Pennsylvania
Position
  • Reynolds Visiting Professor

Publications

Publications (332)
Conference Paper
Full-text available
This article proposes a conceptual model to address the structural holes in data sharing between (and beyond) actors in the circular built environment supply chain and monitoring circular economy progress. Current digital innovations such as material passports and Building Information Modelling applications aim at increasing quality and availabilit...
Article
Full-text available
Sustainability is high on the agendas of public and private organizations. Governments are setting targets for reducing the use of virgin raw materials in products and to eliminate waste. To accelerate the transition towards a Circular Economy (CE) policy makers are launching instruments. However, policy instruments such as financial incentives or...
Conference Paper
Full-text available
Circular economy and sustainability are high on the political agendas of governments. Governments, but also other actors like banks, insurance companies, and auditing firms play a key role in setting (regulatory) requirements, instruments and incentives, as well as monitoring mechanisms to stimulate and monitor CE activities. Governance of CE for e...
Chapter
Full-text available
The international trade flow of e-commerce goods have reached unprecedented volumes. Ensuring undisrupted flow of cross-border eCommerce goods has become one of the top priorities for customs administrations around the world. Customs has a role in safeguarding public values such as safety and security, revenue collection, and stimulation of the eco...
Chapter
With the rise of data analytics use in government, government organizations are starting to explore the possibilities of using business data to create further public value. This process, however, is far from straightforward: key questions that governments need to address relate to the quality of this external data and the value it brings. In the do...
Article
Full-text available
This paper is dedicated to applying ontology alignment systems to the heterogeneity problem in logistics. The primary motivation for doing so is to enable interoperability among different IT systems in logistics, all with their own database scheme. We first analyze different standards for logistics interoperability, which are implemented by XML sch...
Conference Paper
Full-text available
Collective data analytics capability building offers opportunities for government organizations to develop capabilities that would be difficult to develop on their own. However, research on that topic is scarce and there is still a limited understanding of how collective data analytics capability building processes contribute to the value realizati...
Conference Paper
Full-text available
Open government data initiatives are part of the endeavor process of governments to show that they are accountable and transparent organizations. Opening more datasets to external data analytics providers or other government organizations holds the potential to help governments to improve their processes by promoting a better understanding and enha...
Article
The World Customs Organization adopted more than a decade ago the Framework of Standards to Secure and Facilitate Global Trade (SAFE), introducing concepts of supply chain supervision and authorized operator schemes, as a reply to those days’ demands for increased security (WCO, 2018). Whereas the latter has been implemented in many countries, supp...
Chapter
Governance requirements for systems supporting information sharing between businesses and government organisations (B&G) are determined by a high variety of stakeholders with often conflicting interests. These conflicting interests can hamper the introduction and scaling-up of ICT-innovations that change their roles and authorities. We address one...
Article
Full-text available
eCommerce, Brexit, new safety and security concerns are only a few examples of the challenges that government organisations, in particular customs administrations, face today when controlling goods crossing borders. To deal with the enormous volumes of trade customs administrations rely more and more on information technology (IT) and risk assessme...
Article
Over the last few decades, businesses have developed sophisticated information systems that allow the capture of vast amounts of data. Such data can be potentially useful for enabling government authorities to improve their processes and services. For example, access to business documents and track and trace information associated with supply chain...
Poster
Our society is facing big challenges and public organizations have a key role in addressing these, as well as providing public funding for innovation. Many innovation projects however result in a proof-of-concept and deliver initial results but experience issues with upscaling further to realize impact. In the EU, innovation networks are emerging t...
Preprint
Full-text available
Simulated annealing-based ontology matching (SANOM) participates for the second time at the ontology alignment evaluation initiative (OAEI) 2019. This paper contains the configuration of SANOM and its results on the anatomy and conference tracks. In comparison to the OAEI 2017, SANOM has improved significantly, and its results are competitive with...
Article
Full-text available
Ontology alignment is an important and inescapable problem for the interconnections of two ontologies stating the same concepts. Ontology alignment evaluation initiative (OAEI) has been taken place for more than a decade to monitor and help the progress of the field and to compare systematically existing alignment systems. As of 2018, the evaluatio...
Conference Paper
Full-text available
This paper is largely empirically driven and reflects research and insights gained in the last 13 years of involvement in a series of innovation projects (ITAIDE, CASSANDRA, CORE 1 , PROFILE 2) related to scaling-up digital infrastructures in the area of international trade. Most of the project efforts and related research have been focus on the pr...
Conference Paper
Full-text available
Blockchain technologies offer new ways of organizing information architectures for information sharing amongst a multitude of agents in complex socio-technical systems. However, transferring the experience gained with blockchain from the crypotocurrency domain to business-to-business (B2B) setting is challenging and some of the blockchain inherent...
Conference Paper
Full-text available
The logistics sector consists of a limited number of large enterprises and many Small and Medium-sized Enterprises (SMEs). These enterprises either have developed proprietary information systems or use Commercial of the Shelve (COTS) systems tailored to their business processes. It is a large number of heterogeneous systems interoperable via a larg...
Chapter
Big data and analytics have received a lot of attention in e-government research over the last decade and practitioners and researchers are looking into the transformative power of this technology to create for example competitive advantage, and increase transparency. Recent research points out that while parties are aware of the transformative pow...
Article
Full-text available
Decentralized digital technologies require multiple organizations to collectively create digital innovations. Control over the resources required for digital innovations is often therefore dispersed among multiple actors. Actors may have conflicting interests and business models which cause collective digital innovations to come to a standstill. Wh...
Conference Paper
It has been advocated that sharing business data can generate public value. Still this information sharing often needs to be done on voluntary basis and that often poses major challenges. The main research question addressed in this paper is: How is voluntary information sharing to create public value achieved and what are the drivers and mechanism...
Conference Paper
For determining the correctness of an import declaration lodged by a declarant within international shipping, customs authorities rely on manual cross-validation of the declaration with other trade documents. However, the sheer volume of import declarations lodged annually makes it impossible to manually cross-validate each declaration. Smart contr...
Article
Full-text available
Ontology alignment is a fundamental task to reconcile the heterogeneity among various information systems using distinct information sources. The evolutionary algorithms (EAs) have been already considered as the primary strategy to develop an ontology alignment system. However, such systems have two significant drawbacks: they either need a ground...
Chapter
Full-text available
The Beer Living Lab was the first of a series of living labs established to analyse and improve complex cross-border trade and logistics challenges using innovative information technology. Unlike stable inter-firm networks where roles are formal and explicit, role taking and role assigning in the Beer Living Lab was highly dynamic. Although project...
Article
Full-text available
Risk management frameworks offer excellent tools to identify and manage risks in supply chains. Existing tools can be used to evaluate impacts of countermeasures, however, analysts struggle with modelling how disruptions escalate in complex supply chain systems within a certain amount of time and across several stakeholders. On the contrary, the re...
Conference Paper
Full-text available
Simulated annealing-based ontology matching (SANOM) participates for the second time at the ontology alignment evaluation initiative (OAEI) 2018. This paper contains the configuration of SANOM and its results on the anatomy and conference tracks. In comparison to the OAEI 2017, SANOM has improved significantly, and its results are competitive with...
Article
Full-text available
This conceptual discussion paper examines the costs of customs and borders across the supply chain. It does that by considering relevant literature and looking back at the authors’ respective contributions in the subject (of almost one and a half decades) with subsequent reflections. A key component of this paper is a cost model that seeks to descr...
Conference Paper
This conceptual discussion paper examines the costs of customs and borders across the supply chain. It does that by considering relevant literature and looking back at the author’s respective contributions in the subject (of almost one and a half decades) with subsequent reflections. A key component of this paper is a cost model that seeks to descr...
Article
Full-text available
Whereas in market-driven situations the private parties have an interest in driving innovations towards implementation, in the case of public concerns, it is often the public concern that initiates the innovation process. The issue for the public funding agencies is then to stimulate idea generation and the process towards implementation and impact...
Article
The l1-regularized least square problem has been considered in diverse fields. However, finding its solution is exacting as its objective function is not differentiable. In this paper, we propose a new one-layer neural network to find the optimal solution of the l1-regularized least squares problem. To solve the problem, we first convert it into a...
Conference Paper
Business-to-government (B2G) information sharing can benefit government organisations, as well as businesses. Yet, businesses are often reluctant to share, as data sharing might not just provide benefits but also entails risks. Therefore, a system supporting B2G information sharing should provide the appropriate level of openness, such that the adv...
Article
Full-text available
Comparing ontology matching systems are typically performed by comparing their average performances over multiple datasets. However, this paper examines the alignment systems using statistical inference since averaging is statistically unsafe and inappropriate. The statistical tests for comparison of two or multiple alignment systems are theoretica...
Conference Paper
Nowadays, as international trade with cross-border logistics increases, the administrative burden of regulatory authorities has been dramatically raised. In order to reduce repetitive and redundant supervisory controls and promote automatic administration procedures, electronic data interchange (EDI)¹ and other forms of information sharing are intr...
Article
Full-text available
In global supply chains, information about transactions resides in fragmented pockets within business and government systems. The lack of reliable, accurate and complete information makes it hard to detect risks (such as safety, security, compliance and commercial risks) and at the same time makes international trade inefficient. The introduction o...
Article
Full-text available
Ontology alignment is widely-used to find the correspondences between different ontologies in diverse fields.After discovering the alignments,several performance scores are available to evaluate them.The scores typically require the identified alignment and a reference containing the underlying actual correspondences of the given ontologies.The cur...
Article
The development of information infrastructures for international trade to improve supply chain visibility and security has gained momentum due to technological advances. An information infrastructure is a shared, open, and evolving assemblage of interlinked information systems providing distinct information technology capabilities. Examples of info...
Conference Paper
Transportation of horticultural products from Africa to Europe entails numerous challenges. This study of a large European importer of perishable goods in The Netherlands presents complexities of the physical flows of the goods along with information flows related to the goods. Throughout the journey of horticultural products public and private sta...
Conference Paper
Digital infrastructures (DI) that support information exchange related to international trade processes (here referred to as Digital Trade Infrastructures (DTI)) have been seen as an instrument to help address the trade facilitation and security challenges. Data pipelines can be seen as an example of a DTI. Data pipelines are IT innovations that en...
Conference Paper
Full-text available
Trade costs for international supply chain are huge, even in the absence of formal barriers. It is necessary for all the stakeholders, both private and public organizations, to support an effective and efficient border compliance process. Very little trade cost model research has been done at the level of an individual company. Furthermore, customs...
Conference Paper
In global supply chains information about transactions resides in fragmented pockets within business and government systems. The introduction of digital trade infrastructures (DTI) that transcend organizational and systems domains is driven by the prospect of reducing this information fragmentation, thereby enabling improved security and efficiency...
Conference Paper
Advanced architectures for business-to-government (B2G) information sharing can benefit both businesses and government. An essential choice in the design of such an architecture is whether information is shared using a thick or a thin information flow. In an architecture with a thick flow, all information is shared via a shared infrastructure, wher...
Conference Paper
Decentralized digital technologies increasingly enable multiple organizations to co-create digital in-frastructures. However, collective innovation processes often come to a standstill because of conflicting interests and business models. While existing research suggests various factors that block collective innovation processes, there is still lit...
Article
In this paper, an equivalent smooth minimization for the L1 regularized least square problem is proposed. The proposed problem is a convex box-constrained smooth minimization which allows applying fast optimization methods to find its solution. Further, it is investigated that the property "the dual of dual is primal" holds for the L1 regularized l...
Conference Paper
Full-text available
Proper design and implementation of AEO (and other Trusted Trader) benefits for the compliant supply chain companies is crucial for Customs administration worldwide, while without an attractive, sustainable benefit scheme the cargo owners and logistics sector companies are unlikely to be willing to invest money and time to become (and stay) AEO cer...
Conference Paper
Customs administrations are exploring system-based approaches to regulatory supervision, taking the entire set of controls in a process into account. In addition to Trusted Traders, which are recognized by a certification process, customs are considering to identify so called Trusted Trade Lanes: companies that collaborate in a trade lane in a reli...
Article
With increasing international trade and growing emphasis on security and efficiency, enhanced information and data-sharing between different stakeholders in global supply chains is required. Currently, data quality is not only problematic for traders, but also for various government agencies that are involved in border control, such as customs auth...
Article
Full-text available
The scale of society's evolving challenges gradually surpasses the capacity of the public sector to address them. Coping with these challenges requires budget-short governments to look for innovative ways to transform and improve their operations and service provisioning models. While in many cases transformation starts from the inside-out (based o...
Article
Full-text available
Developments in e-commerce are presenting new challenges in customs control and China's customs agency is developing a new approach to how it addresses these challenges. China Customs has adopted an integrated supply chain approach to secure international trade lanes and to facilitate legitimate trade. We present a case study analysis of an integra...
Conference Paper
This paper reports on the use of key design properties for development of a new approach towards a solution for sharing shipping information in the supply chain for international trade. Information exchange in international supply chain is extremely inefficient, rather uncoordinated, based largely on paper, e-mail, phone and text message, and far t...
Conference Paper
Full-text available
In many of today’s enterprises, data management and data quality are poor. Over the last few years, a new solution strategy has emerged, known as data governance: an overarching methodology that defines who is responsible for what data at what point in a business process. Although positive effects on the business performance and compliance of enter...
Conference Paper
Full-text available
With increasing international trade and growing emphasis on security and efficiency, enhanced information and data sharing between different stakeholders in global supply chains is required. Currently data quality is not only problematic for traders, but also for various government agencies involved in border control, such as customs authorities an...
Article
Full-text available
Are there ways to improve compliance, safety, security, operational efficiency and information quality in international trade? Reduce the administrative burden for business and government? Foster the uniform application of Customs legislation? Encourage mutual understanding between the public and private sector, and even share responsibilities in t...
Article
Management of transnational information systems (TIS) faces major challenges, as the diversity of both organizational and national contexts provides increased potential for conflict. This is even more so, especially in the case of supranational TIS, where an additional source and layer of potential conflicts is added by a supranational body, such a...
Article
Management of transnational information systems (TIS) faces major challenges, as the diversity of both organizational and national contexts provides increased potential for conflict. This is even more so, especially in the case of supranational TIS, where an additional source and layer of potential conflicts is added by a supranational body, such a...
Article
Secure and accurate transactions are vital to any large-scale business system in order to guarantee the reliability of the system to stakeholders in both the public and private sectors. In supply chain systems, however, a variety of information security shortcomings is currently occurring in several processes, for example, related to data confident...
Article
Full-text available
A rising trend in software development by public and private organizations is the focus on solutions that combine services (potentially provided by others) into value-added systems. ICT systems based on service-oriented and distributed computing principles require profound changes in the way the software is designed, deployed, and managed. The soft...
Article
Full-text available
With increasing global trade and growing emphasis on security, enhanced information sharing between actors in global supply chains is required. Currently, the data about cargo available in the supply chain does not provide a timely and accurate description of the goods. To solve this data quality issue, data should be captured upstream at the point...
Article
Full-text available
ICT enables business-to-government (b-to-g) information exchange, which can be used to enhance control and compliance by businesses. However, sharing information can cause resistance by businesses, as for them information is key to competitive advantage, whereas governments need this information to conduct their tasks at lower costs. In this paper,...
Conference Paper
Information infrastructures have gained significant momentum in today’s information economy. They are defined as shared, open and evolving socio-technical systems providing distinct IT capabilities. The Cassandra EU project aims to enhance visibility of the international flow of goods over sea with an electronic data pipeline as an information infr...
Article
In business environments, different sorts of regulations are imposed to restrict the behavior of both public and private organizations, ranging from legal regulations to internal policies. Regulatory compliance is important for the safety of individual actors as well as the overall business environment. However, complexity derives from not only the...
Conference Paper
Recent scandals have stressed the need for information sharing among companies and governments. The sharing of information is not easy as companies want to keep their administrative burden low, whereas governments need high information quality. These drivers have resulted in the initiating of programs for developing infrastructures for information...