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Banded structure in binary matrices

Gemma C. Garriga, Esa Junttila, Heikki Mannila
2010 Knowledge and Information Systems  
A binary matrix has a banded structure if both rows and columns can be permuted so that the non-zero entries exhibit a staircase pattern of overlapping rows. The concept of banded matrices has its origins in numerical analysis, where entries can be viewed as descriptions between the problem variables; the bandedness corresponds to variables that are coupled over short distances. Banded data occurs also in other applications, for example in the physical mapping problem of the human genome, in
more » ... eontological data, in network data and in the discovery of overlapping communities without cycles. We study the banded structure of binary matrices, give a formal definition of the concept and discuss its theoretical properties. We consider the algorithmic problems of computing how far a matrix is from being banded, and of finding a good submatrix of the original data that exhibits approximate bandedness. Finally, we show by experiments on real data from ecology and other applications the usefulness of the concept. Our results reveal that bands exist in real datasets and that the final obtained orderings of rows and columns have natural interpretations. ⋆ A preliminary version of this paper appeared in the proceedings of SigKDD 2008 (see [16] ). This current submission corresponds to a significant extension which (1) includes proofs of formal statements; (2) presents new algorithms that outperform the ones presented in the previous paper and lift previous fixed-column permutation Proposition 1 ([24]). A binary matrix M has the consecutive-ones property if and only if its incompatibility graph G(M ) is bipartite.
doi:10.1007/s10115-010-0319-7 fatcat:lq76tyca3vhynbldcqkkencrnm

Data warehouse approach to nursing management

KRISTIINA JUNTTILA, RIITTA MERETOJA, ANJA SEPPÄLÄ, ESA-MATTI TOLPPANEN, TAINA ALA-NIKKOLA, LEENA SILVENNOINEN
2007 Journal of Nursing Management  
Journal of Nursing Management, 2007, 15, 155-161 Data warehouse approach to nursing management KRISTIINA JUNTTILA php, RN’, RIITTTA MERETOJA pap, RN7, ANJA SEPPALA mNsc, RN°, ESA-MATTI TOLPPANEN mp‘, TAINA  ...  Relevant data in a 155 Junttila et al.  ... 
doi:10.1111/j.1365-2834.2007.00690.x pmid:17352698 fatcat:endprcsfabaxvndsojwtmsows4

Banded structure in binary matrices

Gemma C. Garriga, Esa Junttila, Heikki Mannila
2008 Proceeding of the 14th ACM SIGKDD international conference on Knowledge discovery and data mining - KDD 08  
A binary matrix has a banded structure if both rows and columns can be permuted so that the non-zero entries exhibit a staircase pattern of overlapping rows. The concept of banded matrices has its origins in numerical analysis, where entries can be viewed as descriptions between the problem variables; the bandedness corresponds to variables that are coupled over short distances. Banded data occurs also in other applications, for example in the physical mapping problem of the human genome, in
more » ... eontological data, in network data and in the discovery of overlapping communities without cycles. We study the banded structure of binary matrices, give a formal definition of the concept and discuss its theoretical properties. We consider the algorithmic problems of computing how far a matrix is from being banded, and of finding a good submatrix of the original data that exhibits approximate bandedness. Finally, we show by experiments on real data from ecology and other applications the usefulness of the concept. Our results reveal that bands exist in real datasets and that the final obtained orderings of rows and columns have natural interpretations. ⋆ A preliminary version of this paper appeared in the proceedings of SigKDD 2008 (see [16] ). This current submission corresponds to a significant extension which (1) includes proofs of formal statements; (2) presents new algorithms that outperform the ones presented in the previous paper and lift previous fixed-column permutation hal-00658836, version 1 -
doi:10.1145/1401890.1401929 dblp:conf/kdd/GarrigaJM08 fatcat:ewbmymv6gfg7hazubmdptwbhxi

Pre-processing Large Spatial Data Sets with Bayesian Methods [chapter]

Saara Hyvönen, Esa Junttila, Marko Salmenkivi
Lecture Notes in Computer Science  
Binary data appears in many spatial applications such as dialectology and ecology. We demonstrate that a simple Bayesian modeling approach can be used in pre-processing large spatial data sets with missing or uncertain data. Our experiments on real and synthetic data show that conducting the pre-processing phase before applying conventional data mining methods, such as PCA, clustering or NMF, improves the results significantly.
doi:10.1007/978-3-540-74976-9_51 fatcat:kpvhc27abfgrplmfjhtycdfxlm

Page 155 of Journal of Nursing Management Vol. 15, Issue 2 [page]

2007 Journal of Nursing Management  
Journal of Nursing Management, 2007, 15, 155-161 Data warehouse approach to nursing management KRISTIINA JUNTTILA php, RN’, RIITTTA MERETOJA pap, RN7, ANJA SEPPALA mNsc, RN°, ESA-MATTI TOLPPANEN mp‘, TAINA  ...  K., MERETOJA R., SEPPALA A., TOLPPANEN E-M., ALA-NIKKOLA T., & SILVENNOINEN | (2007) Journal of Nursing Management 15, 155-161 Data warehouse approach to nursing management Kristiina Junttila Helsinki  ... 

Kampf gegen die Unwissenschaft

Harri Mantila
2012 Finnisch-Ugrische Forschungen  
Finnland vertreten neben Juntti-la Esa Itkonen und Johanna Laakso. Itkonen behandelt in seinem Beitrag die Kritik am Stammbaummodell.  ...  Sprachforschung zusammen und die mit der finnischen Sprache ver- nationale Trauma zu kurieren, das Santeri Junttila behandelt in erläutert kurz, was wir wirklich über knüpften Mythen, etwa die Auffas-  ... 
doi:10.33339/fuf.85696 fatcat:6cc547tqqfbfpliwt35ivwltam

Competitive success of southern populations of Betula pendula and Sorbus aucuparia under simulated southern climate experiment in the subarctic

Kari Taulavuori, Erja Taulavuori, Karita Saravesi, Tanja Jylänki, Aila Kainulainen, Jonna Pajala, Annamari Markkola, Otso Suominen, Kari Saikkonen
2017 Ecology and Evolution  
Esa Karpoff (Kevo Research Station) is thanked for developing and building of experimental system in Kevo.  ...  Cessation of apical shoot elongation of northern trees is the primary event leading to further preparation for winter dormancy period (Junttila, 2007) .  ... 
doi:10.1002/ece3.3026 pmid:28649360 pmcid:PMC5478116 fatcat:7onfips3i5adjohzzcy7chdtxe

PROTOEUROOPLASTE KEELEPÄRANDIST

M Kendla, J Viikberg
2015 The Yearbook of the Estonian Mother Tongue Society  
Täname ESA retsensenti asja kohaste täpsustavate märkuste eest.  ...  Uuemate häälikulooliste uurimuste järgi ollakse seisukohal, et tegu on balti laenuga (NES: 708; EES: 281; Junttila 2015: 94).  ... 
doi:10.3176/esa61.06 fatcat:dne7gtggqne4bfadbgxlonqple

Suomalais-Ugrilaisen Seuran vuosikertomus ja tilinpäätös vuodelta 2011

Paula Kokkonen
2013 Suomalais-Ugrilaisen Seuran Aikakauskirja  
• Santeri Junttila: Kantasuomalais-balttilaisten kontaktien tutkimushistoria. 200- 300 sivua. • Esa-Jussi Salminen: Udmurtin ja marin kielen kolmannen persoonan possessiivi- suffiksin käyttö.  ...  Minna Majanen Helsingistä, dosentti Matti Miestamo Helsingistä, opiskelija Patrick O'Rourke Helsingistä, eläkeläisopiskelija Esa Postila Rovaniemeltä, opiskelija Juho Pystynen Helsingistä, apulaisprofessori  ... 
doi:10.33340/susa.82608 fatcat:la2ikg3vmzdwlis6o66aaezt7y

Surgery: Between Both Anguish and Joy
Cirugía: entre la angustia y la alegría a la vez

Ángela María Salazar-Maya
2011 Aquichan  
Pero a la gran mayoría esa tranquilidad se las otorga un ser superior.  ...  quirúrgico ha sido poco estudiado, y ello se evidencia en la literatura existente (10); investigaciones como las de Leionen, Leino-Kilpi y Katajisto (11); Fernández y Griffiths (12); Idvall y Rooke (13); Junttila  ... 
doi:10.5294/aqui.2011.11.2.5 fatcat:27b3vgr2afcylf7qgzqnpccr4m

Suomalais-Ugrilaisen Seuran vuosikertomus ja tilinpäätös vuodelta 2012

Paula Kokkonen
2013 Suomalais-Ugrilaisen Seuran Aikakauskirja  
• Santeri Junttila: Kantasuomalaisbalttilaisten kontaktien tutkimushistoria. • Esa-Jussi Salminen: Udmurtin ja marin kielen kolmannen persoonan possessiivi suffiksin käyttö.  ... 
doi:10.33340/susa.82609 fatcat:w532cvtkzzajzoorbecdjvnqua

Adaptación del Cuestionario de Competencia Interpersonal ICQ-15 con Población Adolescente Hispanohablante

Carlos Salavera, Pablo Usán
2018 Revista Iberoamericana de Diagnóstico y Evaluación - e Avaliação Psicológica  
comunicativas y de relación en la edad adulta, viniendo a cubrir la necesidad de establecer unas relaciones sociales positivas como fuente de satisfacción y bienestar personal (Holopainen, Lappalainen, Junttila  ...  de conductas emitidas por el individuo en un contexto interpersonal que le sirve para expresar sus sentimientos, actitudes, deseos, opiniones o derechos de un modo adecuado a la situación, respetando esas  ... 
doi:10.21865/ridep48.3.03 fatcat:r5qxe2hhifh65gv4jsifvwlvea

Integration of questionnaire-based risk factors improves polygenic risk scores for human coronary heart disease and type 2 diabetes

Max Tamlander, Nina Mars, Matti Pirinen, Aarno Palotie, Mark Daly, Bridget Riley-Gills, Howard Jacob, Dirk Paul, Heiko Runz, Sally John, Robert Plenge, Joseph Maranville (+384 others)
2022 Communications Biology  
AbstractLarge-scale biobank initiatives and commercial repositories store genomic data collected from millions of individuals, and tools to leverage the rapidly growing pool of health and genomic data in disease prevention are needed. Here, we describe the derivation and validation of genomics-enhanced risk tools for two common cardiometabolic diseases, coronary heart disease and type 2 diabetes. Data used for our analyses include the FinnGen study (N = 309,154) and the UK Biobank project (N =
more » ... 43,672). The risk tools integrate contemporary genome-wide polygenic risk scores with simple questionnaire-based risk factors, including demographic, lifestyle, medication, and comorbidity data, enabling risk calculation across resources where genome data is available. Compared to routinely used clinical risk scores for coronary heart disease and type 2 diabetes prevention, the risk tools show at least equivalent risk discrimination, improved risk reclassification (overall net reclassification improvements ranging from 3.7 [95% CI 2.8–4.6] up to 6.2 [4.6–7.8]), and capacity to be improved even further with standard lipid and blood pressure measurements. Without the need for blood tests or evaluation by a health professional, the risk tools provide a powerful yet simple method for preliminary cardiometabolic risk assessment for individuals with genome data available.
doi:10.1038/s42003-021-02996-0 pmid:35197564 pmcid:PMC8866413 fatcat:gupqf7xkinh6zd3qmqu75bqa34

Terrestrial laser scanning in forest ecology: Expanding the horizon

Kim Calders, Jennifer Adams, John Armston, Harm Bartholomeus, Sebastien Bauwens, Lisa Patrick Bentley, Jerome Chave, F. Mark Danson, Miro Demol, Mathias Disney, Rachel Gaulton, Sruthi M. Krishna Moorthy (+7 others)
2020 Remote Sensing of Environment  
., 2013; Junttila et al., 2019) .  ...  These missions include two Synthetic Aperture Radar (SAR) instruments -ESA BIOMASS (https://earth.esa.int/eogateway/ missions/biomass) at P-band (Quegan et al., 2019; Toan et al., 2011) and NASA/ISRO  ... 
doi:10.1016/j.rse.2020.112102 fatcat:wvk37s2zlzfihamze5hwxrdmdu

« The Finnish Press Club ». Théâtre documentaire journalistique et débat social

Laura GrÖndahl, Mikko Hautakangas
2016 Communication and Languages  
Voir Janne Junttila, Dokumenttiteatterin uusi aalto, Helsinki, Like Kustannus, 2012. important nous apparaît comme une mise en scène orchestrée, nous pouvons aborder ses effets sur une communauté en le  ...  Denis Guénoun, Näyttämön filosofia, traduit par Kaisa Sivenius, Esa Kirkkopelto et Riika Maukola, © NecPlus | Téléchargé le 19/12/2020 sur www.cairn.info (IP: 207.241.231.83) © NecPlus | Téléchargé  ... 
doi:10.4074/s0336150016014071 fatcat:lg35rb2n4jdalmm5ffoo2fwvue
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