(1 - 20 of 352)

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Kraaij, W. (author), Technisch Physische Dienst TNO - TH (author)
This paper describes the official runs of TNO TPD for CLEF-2001. We participated in the monolingual, bilingual and multilingual tasks. The main contribution of this paper is a systematic comparison of three types of translation resources for bilingual retrieval based on query translation. We compared several techniques based on machine readable...
conference paper 2001
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Frenken, G. (author), Vermeulen, E. (author), Bouquet, F. (author), Sanders, H.M. (author)
The development status of ignition system for the new cryogenic upper stage engine Vinci is presented. The concept differs from existing upper stage ignition systems as its functioning is engine independent. The system consists of a spark torch igniter, a highpressure igniter feed system and an exciter. First igniter hardware is presented and...
conference paper 2002
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Schijvenaars, B.J.A. (author), Schuemie, M.J. (author), van Mulligen, E.M. (author), Weeber, M. (author), Jelier, R. (author), Mons, B. (author), Kors, J.A. (author), Kraaij, W. (author), TNO Informatie- en Communicatietechnologie (author)
The Biosemantics group (Erasmus University Medical Center, Rotterdam) participated in the text categorization task of the Genomics Track. We followed a thesaurus-based approach, using the Collexis indexing system, in combination with a simple classification algorithm to assign a document to one of the four categories. Our thesaurus consisted of...
conference paper 2005
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Dijkstra, S.J. (author), van Essen, D. (author), Westers, A.R. (author)
In the next few decades one of the main problems to deal with in Western Europe is the aging of the population. The healthcare sector will face rising costs and increasing workload. Telemonitoring and networks of professional and voluntary health workers are promising solution directions to deal with both the cost and workload challenges. In...
conference paper 2006
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Jan Ellen, G. (author), Gerrits, L. (author), Slob, A.F.L. (author), TNO Bouw en Ondergrond (author)
conference paper 2007
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Leendertse, P.M. (author), Pennings, L.J. (author), TNO Informatie- en Communicatietechnologie (author)
This paper addresses new questions around media performance as a result of the rise of centralized content portals such as iTunes or MySpace. We first describe the rise of centralized content portals in different media industries, and discuss how these portals are creating a dominant position for themselves by using lock-in strategies. Then we...
conference paper 2007
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van Lieshout, M.J. (author), Kool, L. (author)
In this paper we will present the results of a technology and policy assessment we have performed on emerging issues and policy challenges of RFID technologies. RFID is a basic component of the future internet of things. A balanced view on opportunities and threats, on drivers and barriers is needed to ensure Europe to benefit from RFID. Privacy...
conference paper 2007
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Meulenhoff, P.J. (author), Kerkdijk, H. (author), Hut, D.H. (author), de Waard, W.C. (author), TNO Informatie- en Communicatietechnologie (author)
Unsolicited e-mail, better known as spam, is considered to be one of the largest problems of todays Internet. Some sources claim that up to 90 percent of all e-mail is spam which is a large resource claim on e-mail infrastructures. In this paper we report the results of an anti-spam pilot held between four European ISPs during the first six...
conference paper 2007
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Kraaij, W. (author), Raaijmakers, S.A. (author), Elzinga, P. (author), TNO Informatie- en Communicatietechnologie (author)
We propose a novel and intuitive way to quantify the utility of a classifier in cases where automatic classification is deployed as partial replacement of human effort, but accuracy requirements exceed the capabilities of the classifier at hand. in our approach, a binary classifier is combined with a meta-classifier mapping all decisions of the...
conference paper 2008
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Lauser, B. (author), Johannsen, G. (author), Caracciolo, C. (author), van Hage, W.R. (author), Keizer, J. (author), Mayr, P. (author), TNO Industrie (author), IenT (author)
Knowledge organization systems (KOS), like thesauri and other controlled vocabularies, are used to provide subject access to information systems across the web. Due to the heterogeneity of these systems, mapping between vocabularies becomes crucial for retrieving relevant information. However, mapping thesauri is a laborious task, and thus big...
conference paper 2008
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Beerends, J.G. (author), van Buuren, R.A. (author), van Vugt, J.M. (author), Verhave, J.A. (author), TNO Informatie en Communicatietechnologie (author)
Several measurement techniques exist to quantify the intelligibility of a speech transmission chain. In the objective domain, the Articulation Index [1] and the Speech Transmission Index STI [2], [3], [4], [5] have been standardized for predicting intelligibility. The STI uses a signal that contains spectro-temporal characteristics similar to...
conference paper 2009
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Godana, B.E. (author), Kooij, R.E. (author), Ahmed, O.K. (author), TNO Informatie- en Communicatietechnologie (author)
Nowadays various digital television services are available. However, the user of these services experiences longer delays than the traditional analog TV while switching from channel to channel. The digital TV operator usually displays a black screen with the channel number during zapping. However, it could be interesting for the TV viewer, if...
conference paper 2009
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Heuvelink, A. (author), van den Bosch, K. (author), van Doesburg, W.A. (author), Harbers, M. (author), TNO Defensie en Veiligheid (author)
Simulation-based training in military decision making often requires ample personnel for playing various roles (e.g. team mates, adversaries). Usually humans are used to play these roles to ensure varied behavior required for the training of such tasks. However, there is growing conviction and evidence that intelligent agents can also produce...
conference paper 2009
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Christea, M.L. (author), Strijkers, R.J. (author), Marchal, D. (author), Gommans, L. (author), de Laat, C. (author), Meijer, R.J. (author), TNO Informatie- en Communicatietechnologie (author)
Abstract—This paper presents the generalised Token Based Networking (gTBN) architecture, which enables dynamic binding of communities and their applications to specialised network services. gTBN uses protocol independent tokens to provide decoupling of authorisation from time of usage as well as identification of network traffic. The tokenised...
conference paper 2009
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Hogervorst, M.A. (author), Toet, A. (author), TNO Defensie en Veiligheid (author)
We have tested a prototype dual-band NVG system consisting of two NVGs fitted with filters that split the NVG sensitive range into a short (visual) and a long wavelength (NIR) band. The Color-the-night technique (see Hogervorst & Toet, SPIE D&S ‘08) was used to fuse the images of the two sensors. We designed a color scheme especially optimized...
conference paper 2009
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Schmelz, L.C. (author), van den Berg, J.L. (author), Litjens, R. (author), Zetterberg, K. (author), Amirijoo, M. (author), Spaey, K. (author), Balan, I. (author), Scully, N. (author), Stefanski, S. (author), TNO Informatie- en Communicatietechnologie (author)
conference paper 2009
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Harbers, M. (author), van den Bosch, K. (author), Meyer, J.J.C. (author), TNO Defensie en Veiligheid (author)
Training systems with intelligent virtual agents provide an effective means to train people for complex, dynamic tasks like crisis management or firefighting. Virtual agents provide more adequate behavior and explanations if they not only take their own goals and beliefs into account, but also the assumed knowledge and intentions of other...
conference paper 2009
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Harbers, M. (author), van den Bosch, K. (author), Meyer, J.J.C. (author), TNO Defensie en Veiligheid (author)
Virtual training systems provide an effective means to train people for complex, dynamic tasks such as crisis management or firefighting. Intelligent agents are often used to play the characters with whom a trainee interacts. To increase the trainee's understanding of played scenarios, several accounts of agents that can explain the reasons for...
conference paper 2009
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Harbers, M. (author), van den Bosch, K. (author), Meyer, J.J.C. (author), TNO Defensie en Veiligheid (author)
Virtual training systems with intelligent agents are often used to prepare people who have to act in incidents or crisis situations. Literature tells that typical human mistakes in incidents and crises involve situations in which people make false assumptions about other people's knowledge or intentions. To develop a virtual training system in...
conference paper 2009
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van Diggelen, J. (author), Beun, R.J. (author), Werkhoven, P.J. (author)
This paper discusses a variety of potential applications of intelligent assistants, from personal digital assistant (PDA) to team digital assistant (TDA). We identify two challenges that arise when developing intelligent assistants in crisis management and give an overview of the different technologies that could be used to address these...
conference paper 2009
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