Jingzhi Guo

University of Macau · Department of Computer and Information Science

In this paper, we study the problem of legal domain adaptation problem from an imbalanced source domain to a partial target domain. The task aims to improve legal judgment predictions for non-professional fact descriptions. We formulate this task as a partial-and-imbalanced domain adaptation problem. Though deep domain adaptation has achieved cutti...

With the technology development, information networks continuously generate a large amount of integrated labeled Big Data. Some types of labeled data in real scenes are scarce and difficult to obtain, such as some aerospace data. It is important to address the problem of nonshared and imbalanced unsupervised domain adaptation (NI-UDA) from the labe...

Spacecraft software is a complicated software system integrating many subsystems of different disciplines. Supporting on-orbit missions needs the knowledge of industrial information integration. To ensure mission success, reactive planning is a critical function in solving dynamic problems during task execution, relying on the knowledge of situatio...

In the last decade, blockchain smart contracts emerged as an automated, decentralized, traceable, and immutable medium of value exchange. Nevertheless, existing blockchain smart contracts are not compatible with legal contracts. The automatic execution of a legal contract written in natural language is an open research question that can extend the...

Existing methods consider Word Segmentation (WS) as sequence tagging. Each tag indicates the position of the current character in a segment. The exactness of the position for any non-boundaries character is unnecessary. Any incorrect inner prediction reduces model performance. The position information restricts tag-to-tag transition. Thereby, extra...

Since 2020, the COVID-19 pandemic severely disrupted regular off-line business activities. This unprecedented situation inspires the valuable research on facilitating off-line business under pandemics. In this article, we conceptualized the problem as travel management in pandemic (TMiP) and analyzed it from the technological perspective. Enabling...

Recently, Non-shared-and-Imbalanced Unsupervised Domain Adaption (NI-UDA) has been proposed to fix domain shift from big data source domain with long-tail distribution to specific small target domain with imbalanced distribution, including two challenges: (1) non-shared classes sharing in big data with long-tail distribution, (2) and imbalanced dom...

In multilingual semantic representation, the interaction between humans and computers faces the challenge of understanding meaning or semantics, which causes ambiguity and inconsistency in heterogeneous information. This paper proposes a Machine Natural Language Parser (MParser) to address the semantic interoperability problem between users and com...

Virtual commerce applies immersive technology such as augmented reality and virtual reality into e-commerce to shift consumer perception from 2D product catalogs to 3D immersive virtual spaces. In virtual commerce, the alignment of application design paradigms and the factors influencing consumer behavior is paramount to promote purchase of product...

We propose a new general Graph Adversarial Domain Adaptation (GADA) based on semantic knowledge reasoning of class structure for solving the problem of unsupervised domain adaptation (UDA) from the big data with non-shared and imbalanced classes to specified small and imbalanced applications (NI-UDA), where non-shared classes mean the label space o...

The development of Industry 4.0, smart contract is one of critical application in the blockchain platform, which is the remove of intermediary services to facilitate transactions directly between stakeholders, in which the trust between stakeholders is guaranteed by a blockchain system. However, existing solution of automated execution of smart con...

Virtual world has the potential to become a future global electronic marketplace, integrating many isolated markets in many areas. To achieve this goal, future virtual world is required to be persistent, implying that a virtual world together with its accumulated content shall exist forever regardless of dynamic changes of its users and owners. Unf...

Indoor localisation and its various applications have received significant attention in recent years. The state-of-the-art systems include a large number of complex hardware structures and algorithms making the system not suitable for practical applications. In this paper, we integrate a localisation system that consists of device development, mode...

Virtual worlds have become global platforms connecting millions of people and containing various technologies. For example, No Man’s Sky (nomanssky.com), a cross-platform virtual world, can dynamically and automatically generate content with the progress of user adventure. AltspaceVR (altvr.com) is a social virtual reality platform supporting motio...

Virtual worlds have become global platforms connecting millions of people and containing various technologies. The development of technology, shift of market value, and change of user preference shape the features of virtual worlds. In this paper, we first study the new features of virtual worlds and emergent requirements of system development thro...

Virtual worlds have become the arena for many entertainment, social, and business activities and provided a platform for user content generation. To protect user innovation, persistency is an important property. Unfortunately, existing virtual worlds, owned by some entities, are not immune from death due to entity failure. To provide a persistent v...

Due to guide the industries or enterprises leveraging new technologies and witnessing reengineering, we propose a scheme based on Business Process Reengineering and Blockchain Technology named Blockchain Process Reengineering (BCPR). Different from the technical push mechanisms that generally improve the development of blockchain, BCPR is a new sol...

A smart contract originally drafted by natural language is an essential task of many applications in blockchain technology. Firstly, natural language cannot be directly executed by computers, self-executing requires terms of the smart contract be computer-readable and executable. Secondly, in crossing environments or parties, contract translation n...

We present a novel solution to automating procurement of food materials using electronic scales, which can automatically identify the food materials along weighing them. Though CNN model is regarded as one of the most effective solutions to image recognition, the traditional techniques cannot handle the mismatch problem between the lab training dat...

Virtual world technologies provide new and immersive space for learning, training, and education. They are enabled by the content creation and content sharing function for allowing users to create and interoperate various learning objects. Unfortunately, virtual world content sharing based on persistent virtual world content storage, to the best of...

Healthcare information exchange is an important research topic, which can benefit both healthcare providers and patients. In healthcare data sharing, many cloud-based solutions have been proposed, but the trustworthiness of a third-party cloud service is questionable. Recently, blockchain has been introduced in healthcare record sharing, which does...

With the development of mobile technology, mobile virtual worlds have attracted massive users. To improve scalability, a peer-to-peer virtual world provides the solution to accommodate more users without increasing hardware investment. In mobile settings, however, existing P2P solutions are not applicable due to the unreliability of mobile devices...

Virtual world has the potential to become a future global electronic market, integrating many isolated markets in many areas. To achieve this goal, future virtual world is required to be persistent, which means that a virtual world together with its accumulated content shall exist forever regardless of the dynamic changes of its virtual world users...

For scalability, reliability and cost reduction, virtual environment has been evolved from the client-server model, peer-to-peer model, to the virtual node-based hybrid model. When objects are hosted by unreliable nodes, replication is applied for reliability. An important problem is to maintain replica consistency in interaction, while to minimize...

Clinical practice calls for reliable diagnosis and optimized treatment; however, human errors in health care remain a severe issue even in industrialized countries. The application of clinical decision support systems (CDSS) casts light on this problem. However, given the great improvement in CDSS over the past several years, challenges to their wi...

Internet is a common information space populated with many entities (e.g., Internet of Things) with different information system types. Each of them has its own context of how to build and process documents (e.g., form documents). This leads to heterogeneous documents in terms of syntax and semantics, which are difficult to make information fusion...

In e-marketplace, semantic document exchange is a methodology of providing exchangeable semantic documents, which ensures document writer, writer's computer, reader's computer and document reader to share a same understanding in meaning on any exchanged document, that is, a semantic document is exchangeable across any heterogeneous contexts. This p...

In e-marketplace, semantic document exchange is a methodology of providing exchangeable semantic documents, which ensures document writer, writer's computer, reader's computer and document reader to share a same understanding in meaning on any exchanged document, that is, a semantic document is exchangeable across any heterogeneous contexts. Existi...

While Internet is experiencing a drastic change, semantic representation study becomes more and more important in electronic business and enterprise systems. To semantically represent information resources, this paper proposes a novel Sign Description Framework, which is an abstract specification that represents any object in reality as signs. Base...

Virtual money exchange theory proposed in [6] is an important theory on finding a set of exchange rates between virtual currencies in rapidly-developed research area of virtual worlds. However, due to mathematical limitation of the employed algorithm, the equation solvability problem emerges in the computation of different virtual exchange rates. T...

Heterogeneous device services generated by various devices in different contexts prevent users from efficiently and correctly consuming device services. This seriously hinders the development of Internet of Things. This paper addresses the problems appearing in device discovery and device interaction. It devises a user interoperability framework (U...

Nowadays social network services have been popularly used in electronic commerce systems. Users on the social network can develop different relationships based on their common interests and activities. In order to promote the business, it is interesting to explore hidden relationships among users developed on the social network. Such knowledge can...

An important research problem in designing an open virtual world is how to enable virtual currency exchange between multiple virtual worlds and guarantee the exchange fairness when multiple virtual currencies are adopted as virtual payment instruments in virtual trades between virtual worlds. While an existing VMX theory solved the fairness problem...

Peer-to-peer network and application have boomed for the recent decade. However, Network Address Translation (NAT) devices obstruct its wide application by restricting the access to peers from private network. In this paper, we devise a peer strongly connected model to adapt Kademlia protocol to NAT-involved environment to minimize the impact on ro...

E-business document exchange is a very important research topic in the field of e-marketplace. Heterogeneity of e-business document syntax and semantics largely hinders the future development of e-business document exchange and much affects the automatic document processing, leading to e-business automation unavailable. A semantic integration appro...

The explosive growth of the World Wide Web leads to the fast advancing development of e-commerce techniques. Recommender systems, which use personalised information filtering techniques to generate a set of items suitable to a given user, have received considerable attention. User- and item-based algorithms are two popular techniques for the design...

Resolving context differences between heterogeneous systems for global information interoperability is a challenging research issue in information technology. This paper solved the problem by suggesting a new concept of Open Information Platform (OIP) that builds on the two principles of naturalization and alienation. Following these two principles...

In this paper, we propose a novel automatic image annotation model by mining the web. In our approach, the terms or words appearing in the associated text are extracted and filtered as labels or annotations for the corresponding web images. Sure, much noise exists in those selected labels. In order to reduce the influence caused by the noisy labels...

In e-business, creating a common vocabulary for business integration, interoperation and interaction has to consider the heterogeneity reality of different interpretations from multiple term providers. Maintaining semantic consistency between multiple vocabulary providers is a difficult problem. To solve this problem, this paper proposes a novel cr...

With the development of computer science and virtual reality technology, virtual world evolves along the way of computer game development, from arcade games, console system games, LAN games, Internet connectivity games, unstructured games, games with player generation of content, worlds with designer-provided objectives, games with social networks,...

For the multilingual semantic interoperations in cross-organizational enterprise systems and e-commerce systems, semantic consistency is a research issue that has not been well resolved. This paper contributes to improving multilingual semantic interoperation by proposing a concept-connected near synonym (NSG) framework for concept disambiguation....

An electronic marketplace (e-marketplace) is a common business information space populated with many entities of different system types. Each of them has its own context of how to process activities. This leads to heterogeneous e-marketplace activities, which are difficult to make interoperable and inferred from one entity to another. This study so...

Legal transfer of electronic title document across heterogeneous contexts is a challenging research problem in e-commerce and implies a wider e-commerce transaction scope. This kind of title transfer requires semantic consistency, confidentiality, integrity and legality between transferor and transferee. During the title transfer, cross-context sem...

This article presents pioneering research on measuring virtual wealth in an open virtual world for diagnosing the health of virtual worlds. It proved the existence of an open virtual world by proving the existence of a free choice of virtual currencies for virtual goods between distinct virtual worlds. By discussing the features of open virtual wor...

This article presents pioneering research on virtual money exchange (VMX) to protect the wealth generated in virtual worlds. This goal is realized by designing and implementing a VMX system through which virtual money exchange rates between virtual worlds are generated based on a redistribution strategy. Moreover, this strategy aims to re-value the...

With the advance of the Internet, e-commerce systems have become extremely important and convenient to human being. More and more products are sold on the web, and more and more people are purchasing products online. As a result, an increasing number of customers post product reviews at merchant websites and express their opinions and experiences i...

E-marketplace has a very important requirement of achieving mutual meaning understanding between sellers and buyers. To meet this requirement, this paper has proposed a novel SD-DSD approach, which enables to disambiguate senses between a sender and a receiver for their sent and received documents. This approach has developed five novel strategies...

During the transformation of the existing social Web to semantic social Web, semantics-enriched social computing is becoming important, because it can support semantics-oriented user connection and collaboration in a larger community. To provide this support, this paper proposes a novel sign-based social computing approach, called Sign Network, to...

Creating semantically consistent multilingual vocabulary is challenging to concept engineering, natural language process (NLP) and collaborative editing for cross-domain meaning understanding. This paper proposes a novel method of automatic concept mapping (My Lang Mapper) between multilingual dictionaries (same as bilingual dictionary, abbreviated...

In e-business development, semantics-oriented document exchange is becoming important, because it can support cross-domain user connection, business transaction and collaboration. To provide this support, this paper proposes a DOC Mechanism to exchange semantically interoperable business documents between heterogeneous enterprise information system...

In e-business, creating a common concept set for business integration, interoperation and interaction has to consider the heterogeneity reality of different interpretations from multiple concept providers. Maintaining semantic consistency between multiple concept providers is a difficult problem. To solve this problem, this paper first reviewed the...

A meaningful e-marketplace (MEMP) is a common business information space where computer agents can faithfully deliver the true meanings of e-trade with each other on behalf of their human masters. Partial understanding of any received e-trade information is forbidden since it hides unfavorable legal consequences. MEMP is a new concept. This paper d...

This metadata relates to an electronic version of an article published in Enterprise Information Systems, Volume 4, Issue 1, February 2010, pages 1-22. Enterprise Information Systems is available online at informaworldTM at http://www.informaworld.com/smpp/content~db=all~content=a918784223 In this article, we propose a method for business informati...

Semantic integration is important in constructing electronic marketplaces (e-marketplaces). Although many previous researches have been done, the task of semantic integration and the mechanism of maintaining semantic consistency are still not well known. This paper proposes a Collaboration-Role-Based Semantic Integration Mechanism (CRB-SIM). It pro...

E-marketplace activities initiated by users in general require representing the user requirements and preferences matched with a set of offerings. One issue of these activities is the heterogeneity among them, which asks for semantic consistency maintenance. This paper solves this problem by applying collaborative concept exchange technology and de...

As World Wide Web is becoming the most important information repository, increasing amount of information is available. Currently, web search engines can only provide document oriented searches. In order to fully make use of information from the web, some effective and efficient extraction algorithms are definitely desirable. In this paper, some ex...

This paper has investigated the issue of virtual wealth and its realization in both real and virtual worlds, and argued that the realization of virtual wealth is necessary and possible. On the formation of virtual wealth, it has studied the labor theory of value, exchangeable value, and utility theory. From these theories, it has successfully expla...

An analysis on the existing e-marketplaces shows there are seven types of technical construction methods for e-marketplaces. They are e-catalogue, e-shop, e-portal, e-hub, e-switch, e-integrator and e-merger. The quality of these e-marketplaces can be measured based on a quality matrix of accuracy, reach and richness.

In this paper, we provide a novel image annotation model by mining the Web. In our approach, the concepts or words appearing in the associated text are extracted and filtered as the semantic annotations for the corresponding Web images. In order to alleviate the influence caused by the noise images, for each semantic concept, we improve Web image-w...

Establishing an open virtual money exchange regime is a novel idea but rarely discussed. This paper provides a pioneer research on virtual money exchange (VONEX) approach, aiming to facilitate the exchange of virtual currencies among a variety of heterogeneous virtual communities. It has defined the intrinsic value and exchangeable value of virtual...

The maintenance of semantic consistency between numerous heterogeneous electronic product catalogues (EPC) that are distributed, autonomous, interdependent and emergent on the Internet is an unsolved issue for the existing heterogeneous EPC integration approaches. This article attempts to solve this issue by conceptually designing an interoperable...

The explosive Web make it hard to organize and manage Web information automatically. Therefore, online learning method such as incremental learning is gradually become effective instrument in practical applications. From our experiments, traditional incremental learning shows some flaws in the iterative process. To overcome the drawback caused by u...

In this paper, we tackle the problem as how to personalize the scheduling of ads for different users with objective to maximize the revenue of the search engine. In other word, our object is to deliver ads to individual users based on their interests inferred from user's history queries and history clicked documents. For each query and document we...

In this paper we study the semantic consistency maintenance issue between heterogeneous contexts, that is, how an inquiry from an unknown user of an e-marketplace can be received and answered in a semantically consistent way by a firm that is not in the context of the userpsilas e-marketplace. The proposed solution uses XPM to represent semanticall...

In this paper, we studied the semantic consistency maintenance issue between heterogeneous contexts, that is, how a firm" busi- ness process of one e-marketplace can be transformed to another firm"s business process of another e-marketplace in a semantically consistent way. The proposed solution of this paper uses XML Product Map (XPM) of collabora...

In the development of virtual communities, a new phe- nomenon of virtual money is observed and presented high importance to both e-commerce and e-society fields. This paper, as a pioneer research, has attempted to make a phenomenal analysis on the existing virtual money sys- tems. By the analysis, this paper has defined what virtual money is, what...

Computational group concepts (e.g. total = quantity times unit price) in business document exchange are very important concepts. However, semantic consistency issue exists in document exchange such that how the computational relationship in a computational group concept can be represented, conceptualized, reified and interpreted between heterogeneo...

When developing hotel information platform, the service providers face an important issue, how to attract more hotels to join in their platform without significantly increasing integration cost but maintaining effective information integration? This paper considers the issue in two aspects of business integration policy and technology support, whic...

The heterogeneous concept mapping (HCM) approach of collaborative concept exchange (CONEX) supports the multilingual business information exchange between heterogeneous e-business systems, but it unexplored the issue of semantic consistency maintenance in the constant value translation. This paper discusses this issue with a proposal of contextual...

EM2I07 is a new venue for presenting state-of-the-art research and development achievements in the design, introduction, and use of integration technology for electronic marketplaces that affect business interoperability between firms and within supply chains. Although traditional forms of e-marketplaces such as intermediaries, supplier portals, an...

The increasing demand for doing business online calls for higher business interoperability on e-marketplaces (EMp). This drives the development of integration technologies for improving EMp functions. This paper argues that by comparing the cost of business interoperability on EMp brought by the integration technology, firms will more favour joinin...

The title of this paper was chosen to introduce what EM2I really means and how it could be treated as a research area for the research specialists of business information systems and electronic commerce. It functions as offering a few commonplace remarks by way of introduction so that the area researchers may come up with valuable opinions. Full Te...

While progress is made in the individual integration of business information, documents and processes, the issue of how to vertically integrate these individually integrated results needs to be resolved. This paper proposes a novel TRANSCODE approach to the issue. The approach represents business information, business documents and business process...

Alibaba is the largest global electronic marketplace (GEM) in the world in terms of its participated users. It was successful due to the factors of China's foreign trade regime, the image of low product cost of China, Alibaba's contingent adaptation to users' changing requirements and e-commerce environments. Alibaba is not a technically mature GEM...

Product data integration is an essential issue for many e-commerce interoperable business systems. Core to this issue is how to maintain semantic consistency between heterogeneous product data that are semantically different in structure, concept and context. To resolve the issue, this paper proposes a transparent collaborative integration approach...

Electronic business document interoperation is the cornerstone of business process integration. An essential issue for business document interoperation is to maintain semantic consistency of the exchanged business documents between any two autonomous business communities, where the document sender and receiver have no misunderstanding in using the...

Interoperation between business partners is extremely important. However, most product data produced in many firms are considered as ad hoc and are not qualified for interoperation. To solve this problem, this paper has proposed a concept-centric definition transformation approach, which transforms irregular local product definitions from different...

An unfavorable phenomenon is observed: current electronic markets are fragmented and have formed a set of autonomously distributed product information islands. This leads to heterogeneity of product information between separated sources and makes difficult on product document interoperation. To resolve the issue and facilitate business document int...

The integration of ad hoc electronic product catalogues (EPCs) is an important issue in constructing dynamic global electronic markets. A particular issue in this integration process is that millions of ad hoc EPCs are autonomously distributed around the world on Internet and fully behave in their own ways. This leads to the unknown sources of thei...

A very important issue in constructing global electronic markets is to enable semantic interoperation between fragmented electronic markets by constructing an interoperable electronic product catalogue (EPC) for product data exchange. Nevertheless, the heterogeneous EPCs are highly complex, which, causes the severe semantic inconsistency that preve...

The demand of market globalization has raised the challenge of semantic interoperation in and between traditional and electronic fragmented markets and driven the development of integration technology. This paper argues that by comparing the cost advantages of technical integration and internationalization in production and distribution, semantic i...

Product data exchange is the precondition of business interoperation between Web-based firms. However, millions of small and medium sized enterprises (SMEs) encode their Web product data in ad hoc formats for electronic product catalogues. This prevents product data exchange between business partners for business interoperation. To solve this probl...

Research in interoperability of electronic product catalogues has primarily focused on resolving semantic conflicts arisen from the heterogeneously designed electronic product catalogues. We argue that while existing integration strategies providing static connections between various heterogeneous catalogues over mediating ontologies, ontologies th...

E-Marketplace is a man-made profit center with emergent customer requirements. This emergence nature poses many difficulties for e-marketplace to satisfy its customers and thus affects its survivability and competitiveness, To challenge this issue, this paper has introduced a novel emergent e-marketplace model, and analyzed and quantified the emerg...

This paper investigates the context representation of ad hoc product data that distribute in different semantic communities especially in small and medium sized enterprises through the analysis of the problems in extracting, mediating and comparing product contexts. The problem analysis leads to a proposal for a novel context representation model t...

A B2B e-marketplace is emergent with product representation requirements in continuous changes. To capture the emergence, this paper proposes a novel collaborative product representation approach that collaboratively generates new product representations in real-time both at the sides of sellers/buyers and e-marketplace providers. The approach empl...