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See detailPREDetector: A new tool to identify regulatory elements in bacterial genomes
Hiard, Samuel ULg; Marée, Raphaël ULg; Colson, Séverine ULg et al

in Biochemical and Biophysical Research Communications (2007), 357(4), 861-864

In the post-genomic area, the prediction of transcription factor regulons by position weight matrix-based programmes is a powerful approach to decipher biological pathways and to modelize regulatory ... [more ▼]

In the post-genomic area, the prediction of transcription factor regulons by position weight matrix-based programmes is a powerful approach to decipher biological pathways and to modelize regulatory networks in bacteria. The main difficulty once a regulon prediction is available is to estimate its reliability prior to start expensive experimental validations and therefore trying to find a way how to identify true positive hits from an endless list of potential target genes of a regulatory protein. Here we introduce PREDetector (Prokaryotic Regulatory Elements Detector), a tool developed for predicting regulons of DNA-binding proteins in bacterial genomes that, beside the automatic prediction, scoring and positioning of potential binding sites and their respective target genes in annotated bacterial genomes, it also provides an easy way to estimate the thresholds where to find reliable possible new target genes. PREDetector can be downloaded freely at http://www.montefiore.ulg.ac.be/-hiard/PreDetector (c) 2007 Published by Elsevier Inc. [less ▲]

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See detailLa prédication non verbale en égyptien ancien
Winand, Jean ULg

in Faits de Langues (2006), (27), 73-102

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See detailPredicative Constituents
Denizot, Camille ULg

in Giannakis, Georgios K. (Ed.) Encyclopedia of Ancient Greek Language and Linguistics (2013)

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See detailPredicative Possession in Late Egyptian (with special attention to incipient grammaticalization processes)
Polis, Stéphane ULg

Conference (2014, February)

In this talk, I provide a description of the various types of constructions used for expressing clausal (‘predicative’) possession in Late Egyptian. The corpus is comprehensively defined to include both ... [more ▼]

In this talk, I provide a description of the various types of constructions used for expressing clausal (‘predicative’) possession in Late Egyptian. The corpus is comprehensively defined to include both literary and non-literary texts from the reign of Thutmose 3 (c. 1450 BC) down to abnormal hieratic texts (c. 600 BC), excluding most of the texts in Égyptien de tradition (i.e. purposely imitating various registers of EEg). The talk is structured in three sections that reflect both functional and structural features: (1) The adjectival predicate pattern or the marked expression of ownership; (2) The comitative strategy or the unmarked expression of possession; (3) Other types of predicative possession in Late Egyptian. [less ▲]

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See detailPredictable disruption tolerant networks and delivery guarantees
François, Jean-Marc; Leduc, Guy ULg

Report (2006)

This article studies disruption tolerant networks (DTNs) where each node knows the probabilistic distribution of contacts with other nodes. It proposes a framework that allows one to formalize the ... [more ▼]

This article studies disruption tolerant networks (DTNs) where each node knows the probabilistic distribution of contacts with other nodes. It proposes a framework that allows one to formalize the behaviour of such a network. It generalizes extreme cases that have been studied before where (a) either nodes only know their contact frequency with each other or (b) they have a perfect knowledge of who meets who and when. This paper then gives an example of how this framework can be used; it shows how one can find a packet forwarding algorithm optimized to meet the 'delay/bandwidth consumption' trade-off: packets are duplicated so as to (statistically) guarantee a given delay or delivery probability, but not too much so as to reduce the bandwidth, energy, and memory consumption. [less ▲]

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See detailPredictieve risicofactoren voor lage rugpijn bij jonge werknemers : de BELCOBACK-studie
Van Nieuwenhuyse, A.; Somville, Pierre-René ULg; Johannik, K. et al

in Tijdschrift voor bedrijfs- en verzekeringsgeneeskunde (2006), 14(4), 155-160

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See detailPredicting alpha diversity of African rain forests: models based on climate and satellite-derived data do not perform better than a purely spatial model
Parmentier, Ingrid; Harrigan, Ryan J.; Buermann, Wolfgang et al

in Journal of Biogeography (2011), 38(6), 1164-1176

Aim Our aim was to evaluate the extent to which we can predict and map tree alpha diversity across broad spatial scales either by using climate and remote sensing data or by exploiting spatial ... [more ▼]

Aim Our aim was to evaluate the extent to which we can predict and map tree alpha diversity across broad spatial scales either by using climate and remote sensing data or by exploiting spatial autocorrelation patterns. Location Tropical rain forest, West Africa and Atlantic Central Africa. Methods Alpha diversity estimates were compiled for trees with diameter at breast height ‡ 10 cm in 573 inventory plots. Linear regression (ordinary least squares, OLS) and random forest (RF) statistical techniques were used to project alpha diversity estimates at unsampled locations using climate data and remote sensing data [Moderate Resolution Imaging Spectroradiometer (MODIS), normalized difference vegetation index (NDVI), Quick Scatterometer (QSCAT), tree cover, elevation]. The prediction reliabilities of OLS and RF models were evaluated using a novel approach and compared to that of a kriging model based on geographic location alone. Results The predictive power of the kriging model was comparable to that of OLS and RF models based on climatic and remote sensing data. The three models provided congruent predictions of alpha diversity in well-sampled areas but not in poorly inventoried locations. The reliability of the predictions of all three models declined markedly with distance from points with inventory data, becoming very low at distances > 50 km. According to inventory data, Atlantic Central African forests display a higher mean alpha diversity than do West African forests. Main conclusions The lower tree alpha diversity in West Africa than in Atlantic Central Africa may reflect a richer regional species pool in the latter. Our results emphasize and illustrate the need to test model predictions in a spatially explicit manner. Good OLS or RF model predictions from inventory data at short distance largely result from the strong spatial autocorrelation displayed by both the alpha diversity and the predictive variables rather than necessarily from causal relationships. Our results suggest that alpha diversity is driven by history rather than by the contemporary environment. Given the low predictive power of models, we call for a major effort to broaden the geographical extent and intensity of forest assessments to expand our knowledge of African rain forest diversity. [less ▲]

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See detailPredicting bovine milk urea concentration for future test-day records in a management perspective
Bastin, Catherine ULg; Laloux, Laurent; Bertozzi, Carlo et al

Conference (2008, April 02)

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See detailPredicting bovine milk urea concentration for future test-day records in a management perspective
Bastin, Catherine ULg; Laloux, Laurent; Bertozzi, Carlo et al

in Proceedings of the British Society of Animal Science (2008)

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See detailPredicting default probability and the default recovery ratio: evidence from the Lebanese external public debt
El Khoury, Ghada ULg; Colmant, Bruno; Corhay, Albert ULg

in International Research Journal, "Banks and Bank Systems" (2009), 4(2),

With a national debt exceeding 190% of the GDP at the end of 2006, the Lebanese government is in a difficult situation. The literature on emerging markets reveals the various causes that might lead to a ... [more ▼]

With a national debt exceeding 190% of the GDP at the end of 2006, the Lebanese government is in a difficult situation. The literature on emerging markets reveals the various causes that might lead to a default on their public debt. The first objective of this paper is to analyze the evolution of the credit spread for the Lebanese US Dollar Eurobonds. The second objective is to extract both the implied default recovery ratio and the risk neutral default probability term structure for the Lebanese US dollar Eurobonds between October 2001 and November 2004. Our results show that the recovery ratio is strongly related to the market reaction linked to political and economic tension within Lebanon. For the period after the Paris II conference in November 2002, the average estimates show a decline in the default probability for the long-term period accompanied by an increase in the default recovery ratio. [less ▲]

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See detailPredicting difficulty in PISA reading items : the process of describing item difficulty
Lumley, T.; Mendelovits, J.; Searle, D. et al

Conference (2010, April)

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See detailPredicting Energy Balance Status of Holstein cows using Mid-Infrared Spectral data
Mc Parland, Sinead; Banos, Georgios; Wall, Eileen et al

in Proceedings of the 9th World Congress on Genetics Applied to Livestock Production (2010)

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See detailPredicting Energy Balance Status of Holstein cows using Mid-Infrared Spectral data
Mc Parland, Sinead; Banos, Georgios; Wall, Eileen et al

Conference (2010, August)

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See detailPredicting funds of hedge funds attrition through performance diagnostics
Cogneau, Philippe ULg; Debatty, Philippe; Hübner, Georges ULg

in Gregoriou, Greg (Ed.) Reconsidering Funds of Hedge Funds (2013)

The analysis of individual mutual funds survivorship reveals that a model based on the consideration of a wide class of performance measures can be a solid predictor of their disappearance. Given the ... [more ▼]

The analysis of individual mutual funds survivorship reveals that a model based on the consideration of a wide class of performance measures can be a solid predictor of their disappearance. Given the importance of performance fees, this phenomenon is likely to be all the more relevant for funds of hedge funds. In this analysis, we apply a diagnostics methodology to predict the disappearance of funds of hedge funds from databases, which we consider a sign of their attrition. Our research shows that prediction is also possible for these types of hedge funds, and even that the predictive ability of the model is stronger than for mutual funds. [less ▲]

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See detailPredicting galloping fatigue cycles in quad bundles.
Richardson, A. S.; Dubois, Hervé; Lilien, Jean-Louis ULg

in Proceedings of the CIGRE session 1990 (1990, August 28)

Galloping on power lines is approached by simulation. A particular attention is devoted to the twisting behaviour of the bundle under consideration. Loads on tower are also approached.

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See detailPredicting gene essentiality from expression patterns in Escherichia coli
Irrthum, Alexandre ULg; Wehenkel, Louis ULg

(2008)

Essential genes are genes whose loss of function causes lethal- ity. In the case of pathogen organisms, the identification of these genes is of considerable interest, as they provide targets for the ... [more ▼]

Essential genes are genes whose loss of function causes lethal- ity. In the case of pathogen organisms, the identification of these genes is of considerable interest, as they provide targets for the development of novel antibiotics. Computational analyses have revealed that the posi- tions of the encoded proteins in the protein-protein interaction network can help predict essentiality, but this type of data is not always avail- able. In this work, we investigate prediction of gene essentiality from expression data only, using a genome-wide compendium of expression patterns in the bacterium Escherichia coli, by using single decision trees and random forests. We first show that, based on the original expression measurements, it is possible to identify essential genes with good accu- racy. Next, we derive, for each gene, higher level features such as average, standard deviation and entropy of its expression pattern, as well as fea- tures related to the correlation of expression patterns between genes. We find that essentiality may actually be predicted based only on the two most relevant ones among these latter.We discuss the biological meaning of these observations. [less ▲]

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See detailPredicting Grain Protein Content of Winter Wheat
Mansouri, Majdi ULg; Dumont, Benjamin ULg; Destain, Marie-France ULg

in ESANN 2014 Proceedings (2014, April 24)

Detailed reference viewed: 18 (6 ULg)