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2,888
Intensity process and compensator: A new filtration expansion approach and the Jeulin–Yor theorem. The Annals of Applied Probability
, 2007
"... Let (Xt)t≥0 be a continuoustime, timehomogeneous strong Markov process with possible jumps and let τ be its first hitting time of a Borel subset of the state space. Suppose X is sampled at random times and suppose also that X has not hit the Borel set by time t. What is the intensity process of τ ..."
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Cited by 16 (2 self)
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based on this information? This question from credit risk encompasses basic mathematical problems concerning the existence of an intensity process and filtration expansions, as well as some conceptual issues for credit risk. By revisiting and extending the famous Jeulin–Yor [Lecture Notes in Math. 649
A new learning algorithm for blind signal separation

, 1996
"... A new online learning algorithm which minimizes a statistical dependency among outputs is derived for blind separation of mixed signals. The dependency is measured by the average mutual information (MI) of the outputs. The source signals and the mixing matrix are unknown except for the number of ..."
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Cited by 622 (80 self)
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of the sources. The GramCharlier expansion instead of the Edgeworth expansion is used in evaluating the MI. The natural gradient approach is used to minimize the MI. A novel activation function is proposed for the online learning algorithm which has an equivariant property and is easily implemented on a neural
Multivariate adaptive regression splines
 The Annals of Statistics
, 1991
"... A new method is presented for flexible regression modeling of high dimensional data. The model takes the form of an expansion in product spline basis functions, where the number of basis functions as well as the parameters associated with each one (product degree and knot locations) are automaticall ..."
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Cited by 700 (2 self)
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A new method is presented for flexible regression modeling of high dimensional data. The model takes the form of an expansion in product spline basis functions, where the number of basis functions as well as the parameters associated with each one (product degree and knot locations
Modern Information Retrieval
, 1999
"... Information retrieval (IR) has changed considerably in the last years with the expansion of the Web (World Wide Web) and the advent of modern and inexpensive graphical user interfaces and mass storage devices. As a result, traditional IR textbooks have become quite outofdate which has led to the i ..."
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Cited by 3233 (29 self)
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to the introduction of new IR books recently. Nevertheless, we believe that there is still great need of a book that approaches the field in a rigorous and complete way from a computerscience perspective (in opposition to a usercentered perspective). This book is an effort to partially fulfill this gap and should
Improving automatic query expansion
, 1998
"... Abstract Most casual users of IR systems type short queries. Recent research has shown that adding new words to these queries via odhoc feedback improves the retrieval effectiveness of such queries. We investigate ways to improve this query expansion process by refining the set of documents used in ..."
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Cited by 286 (4 self)
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Abstract Most casual users of IR systems type short queries. Recent research has shown that adding new words to these queries via odhoc feedback improves the retrieval effectiveness of such queries. We investigate ways to improve this query expansion process by refining the set of documents used
Modelbased Feedback in the Language Modeling Approach to Information Retrieval
 In Proceedings of Tenth International Conference on Information and Knowledge Management
, 2001
"... The language modeling approach to retrieval has been shown to perform well empirically. One advantage of this new approach is its statistical foundations. However, feedback, as one important component in a retrieval system, has only been dealt with heuristically in this new retrieval approach: the o ..."
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Cited by 251 (24 self)
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The language modeling approach to retrieval has been shown to perform well empirically. One advantage of this new approach is its statistical foundations. However, feedback, as one important component in a retrieval system, has only been dealt with heuristically in this new retrieval approach
Lost in quantization: Improving particular object retrieval in large scale image databases
 In CVPR
, 2008
"... The state of the art in visual object retrieval from large databases is achieved by systems that are inspired by text retrieval. A key component of these approaches is that local regions of images are characterized using highdimensional descriptors which are then mapped to “visual words ” selected ..."
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Cited by 253 (8 self)
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The state of the art in visual object retrieval from large databases is achieved by systems that are inspired by text retrieval. A key component of these approaches is that local regions of images are characterized using highdimensional descriptors which are then mapped to “visual words ” selected
Microeconomic Evidence of Creative Destruction in Industrial and Developing Countries
 DISCUSSION PAPER NO. 1374 AND WORLD BANK POLICY RESEARCH WORKING PAPER NO. 3464 CALDERÓN, CÉSAR, AND LUIS SERVÉN. 2003. ―THE OUTPUT COST OF LATIN AMERICA’S INFRASTRUCTURE GAP,‖ IN WILLIAM R. EASTERLY AND LUIS SERVÉN, EDS., THE LIMITS OF STABILIZATION: INF
, 2004
"... In this paper we provide an analysis of the process of creative destruction across 24 countries and 2digit industries over the past decade. We rely on a newly assembled dataset that draws from different micro data sources (business registers, census, or representative enterprise surveys). The novel ..."
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Cited by 186 (23 self)
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). The novelty of our approach is in the harmonization of firmlevel data across countries, which enables international comparisons and the identification of countryspecific factors as opposed to sector and time effects. All countries display a massive reallocation of resources, with the entry and exit of many
Multiple Filtration and Approximate Pattern Matching
, 1995
"... Given a text of length n and a query of length q, we present an algorithm for finding all locations of mtuples in the text and in the query that differ by at most k mismatches. This problem is motivated by the dotmatrix constructions for sequence comparison and optimal oligonucleotide probe selec ..."
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Cited by 62 (0 self)
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selection routinely used in molecular biology. In the case q = m the problem coincides with the classical approximate string matching with k mismatches problem. We present a new approach to this problem based on multiple hashing, which may have advantages over some sophisticated and theoretically efficient
A vector Taylor series approach for environmentindependent speech recognition
 Proc. ICASSP96
, 1996
"... In this paper we introduce a new analytical approach to environment compensation for speech recognition. Previous attempts at solving analytically the problem of noisy speech recognition have either used an overlysimplified mathematical description of the effects of noise on the statistics of speec ..."
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Cited by 133 (21 self)
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In this paper we introduce a new analytical approach to environment compensation for speech recognition. Previous attempts at solving analytically the problem of noisy speech recognition have either used an overlysimplified mathematical description of the effects of noise on the statistics
Results 1  10
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2,888