Christian Jilek

Christian Jilek
Deutsches Forschungszentrum für Künstliche Intelligenz | DFKI

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35
Publications
2,031
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89
Citations

Publications

Publications (35)
Article
Full-text available
Information overload resulting from the ever faster growing mass of digital data makes knowledge work more and more complex. Being able to not get distracted and focus on what is currently relevant consumes valuable cognitive resources. Support by intelligent assistance software might alleviate this problem. We report two experiments that addressed...
Preprint
The RDF Mapping Language (RML) allows to map semi-structured data to RDF knowledge graphs. Besides CSV, JSON and XML, this also includes the mapping of spreadsheet tables. Since spreadsheets have a complex data model and can become rather messy, their mapping creation tends to be very time consuming. In order to reduce such efforts, this paper pres...
Conference Paper
Full-text available
During the last decades, recommender systems have played a remarkable role in putting one step further toward making content platforms more intelligent in a wide variety of domains ranging from music and movies to books and documents. Notwithstanding the various applications of recommender systems, not many contributions have been made regarding th...
Chapter
Confidentiality hinders the publication of authentic, labeled datasets of personal and enterprise data, although they could be useful for evaluating knowledge graph construction approaches in industrial scenarios. Therefore, our plan is to synthetically generate such data in a way that it appears as authentic as possible. Based on our assumption th...
Chapter
Small and medium-sized enterprises increasingly adopt electronic invoices and digitized purchase-to-pay processes. A purchase-to-pay process begins with making a purchase order and ends with completing the payment process. Even when organizations adopt electronic invoices, knowledge work in such processes is characterized by assimilating informatio...
Preprint
Confidentiality hinders the publication of authentic, labeled datasets of personal and enterprise data, although they could be useful for evaluating knowledge graph construction approaches in industrial scenarios. Therefore, our plan is to synthetically generate such data in a way that it appears as authentic as possible. Based on our assumption th...
Preprint
The RDF Mapping Language (RML) enables, among other formats, the mapping of tabular data as Comma-Separated Values (CSV) files to RDF graphs. Unfortunately, the widely used spreadsheet format is currently neglected by its specification and well-known implementations. Therefore, we extended one of the tools which is RML Mapper to support Microsoft E...
Preprint
Application developers, in our experience, tend to hesitate when dealing with linked data technologies. To reduce their initial hurdle and enable rapid prototyping, we propose in this paper a framework for building linked data applications. Our approach especially considers the participation of web developers and non-technical users without much pr...
Preprint
When spreadsheets are filled freely by knowledge workers, they can contain rather unstructured content. For humans and especially machines it becomes difficult to interpret such data properly. Therefore, spreadsheets are often converted to a more explicit, formal and structured form, for example, to a knowledge graph. However, if a data maintenance...
Conference Paper
Today’s dynamic business environment requires enterprises to be agile in order to remain competitive. Competition also impacts enterprise modeling (EM) aiming at the systematic development of the enterprise’s business processes, organizational structures, and information systems. Although EM is a mature discipline, organizations still do not exploi...
Preprint
When persons are mentioned in texts with their first name, last name and/or middle names, there can be a high variation which of their names are used, how their names are ordered and if their names are abbreviated. If multiple persons are mentioned consecutively in very different ways, especially short texts can be perceived as "messy". Once ambigu...
Preprint
Despite great advances in the area of Semantic Web, industry rather seldom adopts Semantic Web technologies and their storage and query concepts. Instead, relational databases (RDB) are often deployed to store business-critical data, which are accessed via REST interfaces. Yet, some enterprises would greatly benefit from Semantic Web related datase...
Preprint
Full-text available
Inhibition is one of the core concepts in Cognitive Psychology. The idea of inhibitory mechanisms actively weakening representations in the human mind has inspired a great number of studies in various research domains. In contrast, Computer Science only recently has begun to consider inhibition as a second basic processing quality beside activation...
Article
Inhibition is one of the core concepts in Cognitive Psychology. The idea of inhibitory mechanisms actively weakening representations in the human mind has inspired a great number of studies in various research domains. In contrast, Computer Science only recently has begun to consider concepts such as digital forgetting or suppression of irrelevant...
Article
Knowledge workers face an ever increasing flood of informa- tion in their daily lives. To counter this and provide better support for information management and knowledge work in general, we have been investigating solutions inspired by human forgetting since 2013. These solutions are based on Semantic Desktop (SD) and Managed Forgetting(MF) techno...
Preprint
Semantic services (e.g. Semantic Desktops) are still afflicted by a cold start problem: in the beginning, the user's personal information sphere, i.e. files, mails, bookmarks, etc., is not represented by the system. Information extraction tools used to kick-start the system typically create 1:1 representations of the different information items. Hi...
Preprint
Full-text available
A growing number of applications users daily interact with have to operate in (near) real-time: chatbots, digital companions, knowledge work support systems -- just to name a few. To perform the services desired by the user, these systems have to analyze user activity logs or explicit user input extremely fast. In particular, text content (e.g. in...
Article
Trends like digital transformation even intensify the already overwhelming mass of information knowledge workers face in their daily life. To counter this, we have been investigating knowledge work and information management support measures inspired by human forgetting. In this paper, we give an overview of solutions we have found during the last...
Preprint
Trends like digital transformation even intensify the already overwhelming mass of information knowledge workers face in their daily life. To counter this, we have been investigating knowledge work and information management support measures inspired by human forgetting. In this paper, we give an overview of solutions we have found during the last...
Preprint
Full-text available
Knowledge workers face an ever increasing flood of information in their daily lives. To counter this and provide better support for information management and knowledge work in general, we have been investigating solutions inspired by human forgetting since 2013. These solutions are based on Semantic Desktop (SD) and Managed Forgetting (MF) technol...
Chapter
Full-text available
Current trends, like digital transformation and ubiquitous computing, yield in massive increase in available data and information. In artificial intelligence (AI) systems, capacity of knowledge bases is limited due to computational complexity of many inference algorithms. Consequently, continuously sampling information and unfiltered storing in kno...
Chapter
Deep Linking is the process of referring to a specific piece of web content. Although users can browse their files in desktop environments, they are unable to directly traverse deeper into their content using deep links. In order to solve this issue, we demonstrate “DeepLinker”, a tool which generates and interprets deep links to desktop resources,...
Chapter
Existing Semantic Desktops are still reproached for being too complicated to use or not scaling well. Besides, a real "killer app" is still missing. In this paper, we present a new prototype inspired by NEPOMUK and its successors having a semantic graph and ontologies as its basis. In addition, we introduce the idea of context spaces that users can...
Preprint
In the field of machine learning, data understanding is the practice of getting initial insights in unknown datasets. Such knowledge-intensive tasks require a lot of documentation, which is necessary for data scientists to grasp the meaning of the data. Usually, documentation is separate from the data in various external documents, diagrams, spread...
Preprint
Full-text available
Existing Semantic Desktops are still reproached for being too complicated to use or not scaling well. Besides, a real "killer app" is still missing. In this paper, we present a new prototype inspired by NEPOMUK and its successors having a semantic graph and ontologies as its basis. In addition, we introduce the idea of context spaces that users can...
Preprint
Deep Linking is the process of referring to a specific piece of web content. Although users can browse their files in desktop environments, they are unable to directly traverse deeper into their content using deep links. In order to solve this issue, we demonstrate "DeepLinker", a tool which generates and interprets deep links to desktop resources,...
Article
Spreadsheets are widely used by knowledge workers, especially in the industrial sector. Their methodology enables a well understood, easy and fast possibility to enter data. As filling out a spreadsheet is more accessible to common knowledge workers than defining RDF statements, in this paper, we propose an easy-to-use, zero-configuration, web-base...
Chapter
Chapter 1 detailed the need for preservation especially for our personal life. Even so, it is not part of most users’ regular practice. Preservation challenges users with a manual effort and a somewhat stern discipline to continuously perform the required steps. Being aware of these challenges, the chapter will present the novel approach realized i...
Conference Paper
With an increasing amount of available sensors lifelogging produces more and more data. Thus, realizing necessary condensation and forgetting processes becomes a challenge. In the last three years we investigated Managed Forgetting, Synergetic Preservation and Contextualized Remembering in the so-called ForgetIT project. Using the Semantic Desktop...
Conference Paper
A top-k shortest path algorithm finds the k shortest paths of a given graph ordered by length. Interpreting graphs as RDF may lead to additional constraints, such as special loop restrictions or path patterns. Thus, traditional algorithms such as the ones by Dijkstra, Yen or Eppstein cannot be applied without further ado. We therefore implemented a...

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Project (1)
Project
Es werden in 8 verschiedenen Projekten... ...Mechanismen des menschlichen Vergessens für einen technischen und organisationalen Kontext nutzbar gemacht. ...existierende Organisationstheorien weiterentwickelt im Hinblick auf die Frage, wie eine Passung zwischen den Prozessen, MitarbeiterInnen, Technologien und Strukturen der Organisation und der Informationsmenge, die intern und extern der Organisation generiert wird, hergestellt werden kann, in dem die Informationssysteme in Organisationen befähigt werden zu vergessen. ...interdisziplinär neue Methoden und Übertragungswege für Organisationen entwickelt, um die Balance zwischen stetig wachsenden Mengen an gespeicherten Informationen und einer Informationsreduktion durch Vergessen zu finden. Beteiligte Forschung: https://www.researchgate.net/project/Intentionales-Vergessen-von-arbeitsteiligen-geschaeftsprozessbezogenen-Aktivitaeten-in-der-Fertigung https://www.researchgate.net/project/AdaptPRO-Adaptive-Process-and-Role-Design-in-Organizations https://www.researchgate.net/project/Cyber-physical-forgetting-in-socio-digital-systems https://www.researchgate.net/project/Intentional-Forgetting-of-Everyday-Work-Behavior https://www.researchgate.net/project/EVOWIPE-Explizites-Vergessen-ontologiebasierten-Wissens-in-der-Produktentwicklung https://www.researchgate.net/project/Intentional-Forgetting-within-Organizations https://www.researchgate.net/project/Getrost-vergessen https://www.researchgate.net/project/Intentional-Forgetting