Conferences given and organised
Presentations at congresses by invitation or contributed submissions
Scientific Meetings - organised or chaired
Presentations at congresses by invitation or contributed submissions
Exploring Alternative Data for Nowcasting: A case study on US GDP using Topic Attention.
Sept. 2023.
The Eighth Workshop on MIning DAta for financial applicationS (MIDAS) & ECML-PKDD 2023. (Torino, Italy)
Redes Neuronales Diferenciales.
August 21- Sept 4.
A 10 hr seminar given by invitation at the Dept. of Mathematics, Universidad de La Republica, Uruguay
What to do with your sentiments in finance.
10, Nov. 2022.
QuantMinds International (Barcelona)
On Flows of Neural Ordinary Differential Equations that are solutions of Lotka-Volterra Dynamical Systems
(with C. Ortiz, M. Romani). 19-21,Oct. 2022.
24th International Conference of the Catalan Association for Artificial Intelligence (CCIA 2022)
[Proceedings in IOSPress eBooks]
The Assessment of Clustering on Weighted Networks with R Package clustAnalytics
Towards an Efficient Algorithm for Computing the Reduced Mutual Information
A. Arratia and M. Renedo-Mirambell. 19-21, Oct. 2022.
24th International Conference of the Catalan Association for Artificial Intelligence (CCIA 2022)
[Proceedings in IOSPress eBooks]
What to do with your sentiments in finance.
Sept. 2022.
The Seventh Workshop on MIning DAta for financial applicationS (MIDAS) & ECML-PKDD 2022. (Grenoble, France)
Relación entre procesos gaussianos y redes neuronales
Simposio Internacional de Estadística, Bogotá, Colombia.
Septiembre 21-24, 2021. (Invited Speaker)
Count time series and estimation of under-reported cases of CoVID-19
Bayesian Synthetic Likelihood Estimation for Underreported Time Series: Covid-19 Incidence in Spain
tsIntegerAR package: an R package for integer-valued time series analysis
Alejandra Cabaña, Argimiro Arratia, Amanda Fernandez-Fontelo, David Moriña, Pere Puig, Jordi Tur.
ITISE 2021. International Conference on Time Series and Forecasting
19th-21th July, 2021. Gran Canaria.
Has my supervised learning model really learnt which are the most important features of the data? The case of financial applications
CRM: Workshop on New Challenges in Quantitative Finance, July 12-16, 2021.
(Invited Speaker)
Convolutional Neural Networks, image recognition and financial forecasting
Sept. 2019. (with E. Sepulveda)
The Fourth Workshop on MIning DAta for financial applicationS (MIDAS) & ECML-PKDD 2019. (Wurzburg, Germany)
Multiple evaluation of learning models for stock screening.
June 2019. (with Pol Alvarez)
3rd International Conference on Computational Finance (ICCF2019). A Coruña, Spain.
Models with overnight gap and flash crash to test stop-loss rules.
June 2019. (with Albert Dorador)
3rd International Conference on Computational Finance (ICCF2019). A Coruña, Spain.
Do Google Trends Forecast Bitcoins? Stylized Facts and Statistical Evidence
Sept. 2019. (with Albert Lopez Barrantes)
6th International Conference on Time Series and Forecasting ITISE-2019. Granada, Spain.
Detecting communities in networks of financial time series and determining their significance.
Jan. 15, 2019. Master Modelling for Science and Engineering Research and Innovation (UAB)
Why the Greedy algorithm works?
March 21, 2018.
Papers We Love (Barcelona)
Construcción de Procesos Continuos Autoregresivos mediante iteraciones del proceso Ornstein-Uhlenbeck
Dec. 8, 2017
Jornada Científica en Homenaje a Enrique Cabaña. IMERL, U. de la Republica, Montevideo, Uruguay.
On methods to assess the significance of community structure in networks of financial time series.
Sept. 18-20, 2017.
4th International Work-Conference on Time Series Analysis (ITISE 2017). Granada, Spain.
[slides]
.
Clustering of exchange rates and their dynamics under different dependence measures.
Sept. 19, 2016
ECML-PKDD (2016). 1st Workshop MIDAS (MIning DAta for financial applicationS). Riva del Garda, Italy.
[slides]
.
Multivariate Dynamic Kernels for Financial Time Series Forecasting.
Sept. 6-9, 2016
The 25th International Conference on Artificial Neural Networks (ICANN 2016). Barcelona, Spain.
[slides]
.
A new construction of CARMA models via iterations of Ornstein-Uhlenbeck processes.
June 25-26, 2015.
Interdisciplinary Workshop on Quantitative Finance. Centre de Recerca Matemática CRM. Bellaterra. Spain.
[slides]
Modeling stationary data by a class of generalized Ornstein-Uhlenbeck processes: the Gaussian case.
30/10 to 1/11, 2014.
The 13th International Symp. on Intelligent Data Analysis (IDA 2014). Leuven, Belgium
First Order Extensions of Residue Classes and Uniform Circuit Complexity.
August 20-23, 2013
Workshop on Logic, Language, Information and Computation, WoLLIC 2013. Technische Univesitat Darmstadt, Darmstadt, Germany.
[slides]
.
Forecasting financial time series with Twitter.
16-19 Dec. 2011
ERCIM - International Conference of the ERCIM WG on COMPUTING & STATISTICS. University of London, London, UK.
Modelling stationary time series by continuous time processes.
16-19 Dec. 2011
ERCIM - International Conference of the ERCIM WG on COMPUTING & STATISTICS. University of London, London, UK.
Tracing the temporal evolution of clusters in a financial stock market.
25 Nov. 2011
Seminario Depto. de Cómputo Científico y Estadística, USB, Caracas, Venezuela.
[slides]
.
Using Twitter as a source of information for stock market prediction.
21-25 Nov. 2011
CONFERENCIA LEÓN: ANÁLISIS ESTADISTICA Y PROBABILIDADES. UCV, Caracas, Venezuela.
[slides]
.
Cómo mejorar el PageRank de un árbol.
12-14 July 2010
II Worshop on nonnegative matrices and related topics. UNED, Campus Segovia.
Practical challenges that arise when clustering the web using spectral methods.
7-9 July 2010
VII Jornadas de Matemática Discreta y Algorítmica. CIEM, Universidad de Cantabria, Castro Urdiales.
[slides]
.
Searching for Stable Clusters in IBEX // Reconocimiento Automático de Patrones Candlestick (2 Posters).
11-03-2010
i-Math, Jornadas sobre Matemática de los Mercados Financieros. Universidad de Murcia, España.
Ranking Pages and the Topology of the Web
16 Oct. 2009
Thematic Seminar on Singularities, Algebraic Geometry, Computing and Information. Universidad de Valladolid, Campus Segovia.
Fundamentación Algebraica de la Codicia.
4-7 Feb. 2009
Congreso de la Real Sociedad Matemática Española. Oviedo. Spain.
Conjunto Independiente Máximo, estrategia codiciosa e ideales Secuencialmente Cohen-Macaulay
20-23 Nov. 2008
V Seminario de Geometr�a Tórica. Universidad de Extremadura, Cáceres.
Program schemes with deep push down storage
. June 15-20, 2008
Fourth Conference on Computability in Europe (CiE 2008). University of Athens, Greece.
Previously presented at Algorithms and Complexity in Durham (ACID 07). U. Durham, England. July 2007.
Syntactic approximation to languages that capture complexity classes
June 2007
Computability in Europe (CiE 2007)- Siena, Italy.
Earlier version presented at International Congress of Mathematics (ICM). Madrid. August 22-30, 2006.
Cómo mejorar el PageRank de un árbol
July 2006
V Jornadas de Matemática Discreta y Algorítmica. Universidad de Valladolid, Campus Soria
En busca de una topología óptima respecto de PageRank para hipertextos
April 20-21, 2006
VIII Jornadas de Matemática Discreta (UAM-UPM-UVA). U. Politécnica de Madrid.
Counting proportions of sets: expressive power with almost order
March 20-24, 2006.
Latin American Theoretical Informatics (LATIN 2006). Valdivia, Chile
[slides]
.
Syntactic vs. semantic approximations to logics that capture complexity classes
22-2-2006
Logic and Algorithms, LAA 06.
Isaac Newton Institute for Mathematical Science, Cambridge, UK
Second order proportional quantifiers, definability and computational complexity
July 8-10, 2005
Algorithms and Complexity in Durham (ACID 05). U. Durham, England
Una Introducción a la Complejidad Paramétrica
12-5-2005
VII Seminario de Matemática Discreta (UAM-UPM-UVA). U. Politécnica de Madrid, Madrid.
Esquemas de Programas
Feb. 1-5, 2005
Primer Congreso Conjunto de Matematicas RSEM, SCM, SEIO y SEMA. Universidad de Valencia, España.
Sobre las dificultades para resolver el problema del Nuevo Milenio: es P igual o no a NP?
22-4-2004
VI Seminario de Matemática Discreta (UPM-UVA). Cercedilla, Madrid
Approximating the Expressive Power of Logics in Finite Models
March 2004,
Congreso: Latin American Theoretical Informatics (LATIN 2004). Buenos Aires, Argentina.
Approximations to the expressive power of logics that capture complexity classes
April, 2003
XVI Jornadas Matemáticas Venezolanas. Universidad Simón Bolívar, Venezuela
First order reducibility and complexity of games
July 2002
SIAM's 50th. Anniversary and 2002 Annual Meeting. Philadelphia, EEUU.
Juegos y proyecciones de primer orden
April, 2001
XIV Jornadas Matemáticas Venezolanas. Universidad Centro Occidental Lisandro Alvarado, Barquisimeto, Venezuela
Herramientas formales para la clasificación de monoides finitos
April, 2000
XIII Jornadas Matemáticas Venezolanas. Universidad de Carabobo, Valencia, Venezuela.
Métodos del Análisis no-estandar en la teoría de modelos finitos
March, 1999
XII Jornadas Matemáticas Venezolanas. Universidad Central de Venezuela, Caracas, Venezuela.
Lógicas que capturan clases de complejidad
April, 1997
X Jornadas Matemáticas Venezolanas. Universidad Simón Bolívar, Caracas, Venezuela.
Capturing Complexity Classes using Generalized Quantifiers
, Oct., 1997
A tour of talks given at: seminar Dept. Computer Sci. Leicester University (15/10/97); seminar of Logic at Dept. Mathematics Oxford University (17/10/97); seminar Dept. Computer Sci. Univ. of Wales-Swansea (21/10/97); seminar of Logic at Dept. Mathematics Univ. of Leeds (29/10/97), UK.
Generalized Hex and logical characterizations of PSPACE
, Dec., 1996
Midwest Theory Day. University of Illinios at Chicago, USA
On Logics that Capture Complexity Classes
, Feb., 1995
Southern Wisconsin Logic Colloquium. U. Wisconsin-Madison, USA
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Scientific Meetings / Reuniones Científicas
(I am currently or have been involved as member of Organising or Scientific Committee. Do go to these!)
10th International Work-Conference on Time Series Analysis (ITISE 2023). Gran Canaria, Spain. July 12-14, 2023.
PC Member
9th International Work-Conference on Time Series Analysis (ITISE 2022). Gran Canaria, Spain. June 27-30, 2022.
PC Member
4th International Work-Conference on Time Series Analysis (ITISE 2017). Granada, Spain. Sept. 18-20, 2017.
Chair of session
MIDAS 2017. The Second Workshop on MIning DAta for financial applicationS. September 18, 2017 - Skopje, Macedonia
15th Computing: The Australasian Theory Symposium (CATS 2009), at Wellington, New Zealand, during January 20-23, 2009
(Go to: http://velorum.ballarat.edu.au/~pmanyem/CATS09/ )
14th Computing: The Australasian Theory Symposium (CATS 2008), at the University of Wollongong, New South Wales, Australia, during January 22-25, 2008
(Go to : http://uob-community.ballarat.edu.au/~pmanyem/cats-08/ )
International Congress of Mathematicians, ICM 2006 (Chair de las sesiones T3 y T5, Viernes 25/8/06, Seccion 15: Mathematical Aspects of Computer Science), Agosto 2006
V Jornadas de Matemática Discreta y Algorítmica en la Universidad de Valladolid, campus Soria, Julio 2006
(Go to: http://www.ma.uva.es/~vjmda/ )
Latinoamerican Theoretical INformatics (LATIN 06), Valdivia, Chile, Marzo 20--24, 2006
(Go to: http://www.latin06.org/ )
Primer Congreso Conjunto de Matematicas RSEM, SCM, SEIO y SEMA, Valencia, Espa\~na (Organizador de la Sesión Especial de Lógica en la Computación), Feb. 2005
(Go to: http://www.uv.es/mat.es2005/sessionsc.shtml )
10th Workshop on Logic, Language, Information and Computation (WoLLIC' 03) Ouro Preto, Minas Gerais, Brazil, Julio 29 - Agosto 1, 2003
(Go to: http://www.cin.ufpe.br/~wollic/wollic2003/ )
XVI Jornadas de Matemática, Venezuela, Abril 2003
(Go to: http://www.ma.usb.ve/informacion/jornadas.html )
XII Jornadas de Matemática, Venezuela, Marzo 1999
XI Simposio Latinoamericano de Lógica Matemática, Venezuela, Julio 1998
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