1. Balodis R., Opmane I. ICT History Study as Corporate Philanthropy in Latvia, IFIP Advances in Information and Communication Technology, Volume 549, 2019, Pages 304-316, DOI: 10.1007/978-3-030-29160-0_16, ISSN: 18684238, ISBN: 978-303029159-4, Scopus
https://www.scopus.com/authid/detail.uri?authorId=55320758700
http://ifipwg97.org/workshops/eastern-europe/
Projekts: 1.1.1.5/18/I/016
Datorzinātne un informātika
2. Čerāns, K., Būmans, G. RDB2OWL: A Language for Database to OWL Mapping and its Implementation. Baltic Journal of Modern Computing, 2019, Volume 7, Issue 4, p.475-486, DOI: 10.22364/bjmc.2019.7.4.02, Scopus, Web of Science
https://www.scopus.com/authid/detail.uri?authorId=57189271668
http://webofknowledge.com
Datorzinātne un informātika
3. Čerāns K., Šostaks A., Bojārs U., Bārzdiņš Juris, Ovčiņņikova J., Lāce L., Grasmanis M., Sproģis A. ViziQuer: A Visual Notation for RDF Data Analysis Queries. Communications in Computer and Information Science. Volume 846, 2019, Pages 50-62, ISSN: 18650929, ISBN: 978-303014400-5, DOI: 10.1007/978-3-030-14401-2_5, Scopus.
https://www.scopus.com/authid/detail.uri?authorId=57189271668
Bāzes finansējums
Datorzinātne un informātika
4. Arhipova I., Bērziņš G., Brēķis E., Opmanis M., Binde J., Kravcova J., Šteinbuka I. Pattern identification by factor analysis for regions with similar economic activity based on mobile communication data. Advances in Intelligent Systems and Computing, Volume 886, 2019, Pages 561-569. Future of Information and Communication Conference, FICC 2018; Singapore, SCOPUS, ISSN: 21945357, DOI: 10.1007/978-3-030-03402-3_39 ISBN: 978-303003401-6
https://www.scopus.com/authid/detail.uri?authorId=13009190200
Datorzinātne un informātika
5. Freivalds K., Ozoliņš E., Šostaks A Neural shuffle-exchange networks - Sequence processing in O(n log n) time. Advances in Neural Information Processing Systems, Proceedings of the conference “Neural Information Processing Systems 2019 (NeurIPS 2019), Vancouver, Canada, December 08-14, 2019, Volume: 32, ISSN: 10495258,Web of Science, Scopus.
https://www.scopus.com/authid/detail.uri?authorId=8537440500
http://webofknowledge.com
http://papers.neurips.cc/paper/8889-neural-shuffle-exchange-networks-sequence-processing-in-on-log-n-time
Projekts: lzp-2018/1-0327
6. Darģis R. (LU DF), Auziņa I., Levāne-Petrova K. The use of text alignment in semi-automatic error analysis: Use case in the development of the corpus of the Latvian language learners. Proceedings of the 11th International Conference on Language Resources and Evaluation, LREC 2018; Phoenix Seagaia Conference CenterMiyazaki; Japan; 7 May 2018 through 12 May 2018; Code 143414 (LREC), Pages 4111-4115, 2018, ISBN: 979-109554600-9, SCOPUS 2019
https://www.scopus.com/authid/detail.uri?authorId=36602107100
Projekts: 1.1.1.1/16/A/219, bāzes finansējums
http://www.lrec-conf.org/proceedings/lrec2018/pdf/933.pdf
Datorzinātne un informātika, Valodniecība un literatūrzinātne
7. Grūzītis N., Pretkalniņa L., Saulīte B., Rituma L., Nešpore-Bērzkalne G., Znotiņš A., P. Paikens (LETA). Creation of a Balanced State-of-the-Art Multilayer Corpus for NLU. LREC 2018 - 11th International Conference on Language Resources and Evaluation, 2019, Pages 4506-4513, 11th International Conference on Language Resources and Evaluation, LREC 2018; Phoenix Seagaia Conference CenterMiyazaki; Japan; 7 May 2018 through 12 May 2018; Code 143414, 2018, ISBN: 979-109554600-9
https://www.scopus.com/authid/detail.uri?authorId=36189825400
Projekti: 1.1.1.1/16/A/219, 1.1.1.2/VIAA/1/16/188
http://www.lrec-conf.org/proceedings/lrec2018/pdf/935.pdf
Datorzinātne un informātika, Valodniecība un literatūrzinātne
8. Arhipova I., Bērziņš G., Brēķis E., Binde J., Opmanis M., Mobile phone data statistics as proxy indicator for regional economic activity assessment. Proceedings of the International Conference on Finance, Economics, Management and IT Busines, May 3-5, 2019, in Heraklion, Crete, Greece, Pages 27-36, SCOPUS, ISBN: 978-989758370-4, DOI: 10.5220/0007772000270036,
https://www.scopus.com/authid/detail.uri?authorId=13009190200
https://www.scitepress.org/ProceedingsDetails.aspx?ID=DLz3XYRUEYA=&t=1
Bāzes finansējums
Datorzinātne un informātika
9. Rencis E. Natural language-based knowledge extraction in healthcare domain. ACM International Conference Proceeding Series, 6 April 2019, Pages 138-142. 3rd International Conference on Information System and Data Mining, ICISDM 2019; University of HoustonHouston; United States; 6 April 2019 through 8 April 2019; Code 148823, SCOPUS, Web of Science, ISBN: 978-1-4503-6635-9, DOI: 10.1145/3325917.3325948
https://www.scopus.com/authid/detail.uri?authorId=24605659400
http://webofknowledge.com
https://dl.acm.org/citation.cfm?id=3325948
Projekts: 1.1.1.2/VIAA/1/16/218
Datorzinātne un informātika
10. Lāce, L., Melkus, G., Ručevskis, P., Celms, E., Čerāns, K., Ķikusts, P., Opmanis, M., Rituma, Vīksna, J. Graph-based characterisations of cell types and functionally related modules in promoter capture Hi-C Data. Proceedings of the 12th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2019; Prague; Czech Republic; 22 February 2019 through 24 February 2019, SCOPUS, ISBN: 978-989758353-7, DOI: 10.5220/0007390800780089
https://www.scopus.com/authid/detail.uri?authorId=57189271668
Projekts: ERAF 1.1.1.1/16/A/135.
Datorzinātne un informātika
11. Kozlovičs, S. Fast model repository as memory for web applications. Frontiers in Artificial Intelligence and Applications, Volume 315, 2019, Pages 176-191. Selected papers of 13th International Baltic Conference on Databases and Information Systems, DB and IS 2018, Trakai, Lithuania; 1 July 2018 through 4 July 2018, SCOPUS. ISSN: 09226389, ISBN: 978-161499940-9, DOI: 10.3233/978-1-61499-941-6-176
https://www.scopus.com/authid/detail.uri?authorId=53463821200
http://ebooks.iospress.nl/volume/databases-and-information-systems-x-selected-papers-from-the-thirteenth-international-baltic-conference-dbis-2018
Projekts: 1.1.1.2/VIAA/1/16/214
Datorzinātne un informātika
12. Āboltins A., Kalis H., Kangro I. Cam with special splines for solving of diffusion-convection problems with discontinuous coefficients for layered materials exposed to fire. Engineering for Rural Development, Volume 18, 2019, Pages 1147-1154, 18th International Scientific Conference Engineering for Rural Development, ERD 2019; Jelgava, ISSN: 16913043, DOI: 10.22616/ERDev2019.18.N136, SCOPUS, Web of Science
Projekts: 1.1.1.1/16/A/004
https://www.scopus.com/authid/detail.uri?authorId=6602387930
http://webofknowledge.com
Matemātika, Fizika
13. Kangro I., Kalis H., Teirumnieka Ē., Teirumnieks E. Special hperbolic type approximation for solving of 3-D two layer stationary diffusion. Environment, Technology, Resources. Volume 3, 2019, Pages 95-100, 12th International Scientific and Practical Conference on Environment. Technology. Resources; Rezekne; Latvia; 20 June 2019 through 22 June 2019, ISSN: 16915402, DOI: 10.17770/etr2019vol3.4079, SCOPUS
https://www.scopus.com/authid/detail.uri?authorId=6602387930
Matemātika
14. Kalis H., Marinaki M., Ozola L., Strautiņš U. Numerical study of electrodynamic control of straw co-firing with propane. Engineering for Rural Development, Volume 18, 2019, Pages 1198-1204, 18th International Scientific Conference Engineering for Rural Development, ERD 2019, Jelgava, Latvia, 22 May 2019 through 24 May 2019, ISSN: 16913043, DOI: 10.22616/ERDev2019.18.N330, SCOPUS, Web of Science
Projekts: 1.1.1.1/16/A/004
https://www.scopus.com/authid/detail.uri?authorId=6602387930
http://webofknowledge.com
Matemātika, Inženierzinātnes un tehnoloģijas
15. Cīrulis J., Polyadic algebras with terms: a signature-free approach. Proceedings Conference Groups, Algebras and Identities, Book Series: Contemporary Mathematics, Volume: 726, Pages: 99-122, 2019, Research Workshop of the Israel-Science-Foundation on Groups, Algebras and Identities in Honor of Boris Plotkin's 90th Birthday, Bar Ilan Univ, ISRAEL, MAR 20-24, 2016, DOI: 10.1090/conm/726/14608, Web of Science
Projekts: 271/2012
http://webofknowledge.com
Matemātika
16. Sadirbajevs F., E.Brokāns. On controllability of nonlinear dynamical network. International Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2018), AIP Conference Proceedings, Volume 2116, 24 July 2019, Article number 040005, DOI: 10.1063/1.5114026, Scopus
https://www.scopus.com/authid/detail.uri?authorId=6508350562
Matemātika
17. Skadiņa I. Some highlights of human language technology in baltic countries. Frontiers in Artificial Intelligence and Applications, Volume 315, 2019, Pages 18-30, 13th International Baltic Conference on Databases and Information Systems, DB and IS 2018, Trakai, Lithuania, 1 July 2018 through 4 July 2018, DOI: 10.3233/978-1-61499-941-6-18, ISSN: 09226389, ISBN: 978-161499940-9, Scopus
https://www.scopus.com/authid/detail.uri?authorId=36474178500
URL: http://ebooks.iospress.nl/volumearticle/50989
Datorzinātne un informātika, Valodniecība un literatūrzinātne
Projekts: 1.1.1.5/18/I/016
18. Bārzdiņš G., Goško D., Bārzdiņš P.F., Lavrinovics U., Bernans G., Celms E. RDF* Graph Database as Interlingua for the TextWorld Challenge. Proceedings of the IEEE Conference on Games (CIG), 2019. Volume 2019-August, August 2019, Article number 8848012, DOI: 10.1109/CIG.2019.8848012, ISSN: 23254270, ISBN: 978-172811884-0, Scopus
Projekti: 1.1.1.1/18/A/045, 1.2.1.1/18/A/003
Datorzinātne un informātika, Valodniecība un literatūrzinātne
https://www.scopus.com/authid/detail.uri?authorId=7801423714
19. Sneps-Sneppe, M., Namiot, D., Alberts, M. Channel Switching Protocols Hinder the Transition to IP World: The Pentagon Story. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Volume 11660 LNCS, 2019, Pages 185-195, 19th International Conference on Next Generation Teletraffic and Wired/Wireless Advanced Networks and Systems, NEW2AN 2019, and 12th Conference on Internet of Things and Smart Spaces, ruSMART 2019, St. Petersburg, Russian Federation, 26 August 2019 through 28 August 2019, DOI: 10.1007/978-3-030-30859-9_16, ISSN: 03029743, ISBN: 978-303030858-2, Scopus.
Datorzinātne un informātika
https://www.scopus.com/authid/detail.uri?authorId=8351088600
20. Blumbergs B., Ottis R., Vaarandi R. Crossed swords: A cyber red team oriented technical exercise. European Conference on Information Warfare and Security, ECCWS. Volume 2019-July, 2019, Pages 37-44, 18th European Conference on Cyber Warfare and Security, ECCWS 2019, Coimbra, Portugal, 4 July 2019 through 5 July 2019, ISSN: 20488602, ISBN: 978-191276428-0, Scopus.
https://www.scopus.com/authid/detail.uri?authorId=56705450600
Datorzinātne un informātika
21. Mucci D., Blumbergs B. TED: A container based tool to perform security risk assessment for ELF binaries. ICISSP 2019 - Proceedings of the 5th International Conference on Information Systems Security and Privacy. 5th International Conference on Information Systems Security and Privacy, ICISSP 2019, Prague, Czech Republic, 23 February 2019 through 25 February 2019, Pages 361-369,
ISBN: 978-989758359-9, Scopus.
https://www.scopus.com/authid/detail.uri?authorId=56705450600
Datorzinātne un informātika
22. Blumbergs B. Remote exploit development for cyber red team computer network operations targeting industrial control systems. ICISSP 2019 - Proceedings of the 5th International Conference on Information Systems Security and Privacy, 5th International Conference on Information Systems Security and Privacy, ICISSP 2019, Prague, Czech Republic, 23 February 2019 through 25 February 2019, ISBN: 978-989758359-9, Scopus.
https://www.scopus.com/authid/detail.uri?authorId=56705450600
Datorzinātne un informātika
23. Čerāns K., Lāce L., Romāne A., Ovčiņņikova J., Kozlovičs S., Grasmanis M., Hodakovska J., Sproģis A., Šostaks A. Visual queries over scholarly data and other linked data endpoints. CEUR Workshop Proceedings. 2019 ISWC Satellite Tracks (Posters and Demonstrations, Industry, and Outrageous Ideas), ISWC 2019-Satellites, Auckland, New Zealand; 26 October 2019 through 30 October 2019, ISSN: 16130073, Volume 2456, 2019, Pages 297-300, Scopus.
https://www.scopus.com/authid/detail.uri?authorId=57189271668
Projekts: Bāzes finansējums un 1.1.1.2/VIAA/1/16/214
Datorzinātne un informātika
24. Čerāns K., Lāce L., Romāne A., Ovčiņņikova J., Kalniņa E., Grasmanis M., Hodakovska J., Sproģis A., Šostaks A. Visual query environment over RDF data. CEUR Workshop Proceedings. 15th International Conference on Semantic Systems, SEMPDS 2019, Karlsruhe, Germany, 9 September 2019 through 12 September 2019, ISSN: 16130073, Volume 2451, 2019, Scopus.
https://www.scopus.com/authid/detail.uri?authorId=57189271668
Datorzinātne un informātika
25. Kozlovičs S. Towards an extensible web-based open-source graphical ontology editing framework. CEUR Workshop Proceedings, 2019 ISWC Satellite Tracks (Posters and Demonstrations, Industry, and Outrageous Ideas), ISWC 2019-Satellites, Auckland; New Zealand, 26 October 2019 through 30 October 2019, Volume 2456, 2019, Pages 157-160, ISSN: 16130073, Scopus
https://www.scopus.com/authid/detail.uri?authorId=53463821200
Projekts: 1.1.1.2/VIAA/1/16/214
Datorzinātne un informātika
26. Kalniņa E., Šostaks A. Towards concrete syntax based find for graphical domain specific languages. Proceedings of 2019 ACM/IEEE 22nd International Conference on Model Driven Engineering Languages and Systems Companion, MODELS-C 2019, September 2019, Article number 8904770, pp. 236-242, ISBN: 978-172815125-0, DOI: 10.1109/MODELS-C.2019.00038, SCOPUS.
https://www.scopus.com/authid/detail.uri?authorId=8671896900
https://ieeexplore.ieee.org/document/8904770
Projekts: 1.1.1.2/16/I/001, 1.1.1.2/VIAA/1/16/180
Datorzinātne un informātika
27. Čerāns K., Lāce L., Romāne A., Ovčiņņikova J., Grasmanis M., Sproģis A., Šostaks A. Schema-Based Visual Queries over Linked Data Endpoints. Communications in Computer and Information Science, Volume 1057 CCIS, 2019, pp. 200-206, 13th International Conference on Metadata and Semantic Research, MTSR 2019, ISBN: 978-3-030-36598-1, DOI: 10.1007/978-3-030-36599-8_18, SCOPUS.
https://www.scopus.com/authid/detail.uri?authorId=57189271668
https://link.springer.com/chapter/10.1007%2F978-3-030-36599-8_18
Projekts: Bāzes finansējums
Datorzinātne un informātika
28. Čerāns K., Ovčiņņikova J., Liepiņš R., Grasmanis M. Extensible Visualizations of Ontologies in OWLGrEd. Lecture Notes in Computer Science, Volume 11762 LNCS, 2019, pp. 191-196, 16th Extended Semantic Web Conference, ESWC 2019, ISBN: 978-303032326-4, DOI: 10.1007/978-3-030-32327-1_38, ISSN: 03029743, SCOPUS.
https://www.scopus.com/authid/detail.uri?authorId=57189271668
https://link.springer.com/chapter/10.1007%2F978-3-030-32327-1_38
Projekts: Bāzes finansējums
Datorzinātne un informātika
29. Rencis E. User Experience-based Information Retrieval from Semistar Data Ontologies. IC3K 2019 - Proceedings of the 11th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management Volume 1, 2019, pp 419-426, ISBN: 978-989758382-7, DOI: 10.5220/0008345004190426, SCOPUS
https://www.scopus.com/authid/detail.uri?authorId=24605659400
https://www.scitepress.org/PublicationsDetail.aspx?ID=rztOk03UK5s=&t=1
Projekts: 1.1.1.2/VIAA/1/16/218
Datorzinātne un informātika
30. Kozlovičs S. The web computer and its operating system: A new approach for creating web applications. WEBIST 2019 - Proceedings of the 15th International Conference on Web Information Systems and Technologies, Vol.1, SciTePress, pp.46-57, 2019, ISBN: 978-989758386-5, SCOPUS
https://www.scopus.com/authid/detail.uri?authorId=53463821200
https://www.insticc.org/Primoris/Resources/PaperPdf.ashx?idPaper=80538
Projekts: 1.1.1.2/VIAA/1/16/214
Datorzinātne un informātika
31. Melkus G., Ručevskis P., Celms E., Čerāns K., Freivalds K., Ķikusts P., Lāce L., Opmanis M., Rituma D., Vīksna J. Graph-based network analysis of transcriptional regulation pattern divergence in duplicated yeast gene pairs. ACM International Conference Proceeding Series, 4 December 2019, Article number 3365954, 10th International Conference on Computational Systems-Biology and Bioinformatics, CSBIO 2019; Nice; France; 4 December 2019 through 7 December 2019, DOI: 10.1145/3365953.3365954, ISBN: 978-145037215-2, Scopus
https://www.scopus.com/authid/detail.uri?authorId=57203762168
Projekts: ERAF 1.1.1.1/16/A/135
Datorzinātne un informātika
32. Bojārs U., Darģis R., Lavrinovičs U., Paikens P. LinkedSaeima: A Linked Open Dataset of Latvia’s Parliamentary Debates. Lecture Notes in Computer Science, Volume 11702 LNCS, 2019, 15th International Conference on Semantic Systems, SEMANTiCS 2019, pp. 50-56, ISBN: 978-303033219-8, DOI: 10.1007/978-3-030-33220-4_4, ISSN: 03029743, SCOPUS.
https://www.scopus.com/authid/detail.uri?authorId=8846837400
https://link.springer.com/chapter/10.1007/978-3-030-33220-4_4
Projekts: 1.1.1.1/16/A/219
Datorzinātne un informātika, Valodniecība un literatūrzinātne
33. Paikens P., Grūzītis N., Rituma L., Nešpore G., Lipskis V., Pretkalniņa L., Spektors A. Enriching an Explanatory Dictionary with FrameNet and PropBank Corpus Examples. Proceedings of Electronic Lexicography in the 21st Century Conference, Volume 2019-October, 2019, Pages 922-933, 2019; ISSN: 25335626, Scopus;
https://www.scopus.com/authid/detail.uri?authorId=36189825400
Datorzinātne un informātika, Valodniecība un literatūrzinātne;
Projekti: 1.1.1.1/16/A/219, VPP-IZM-2018/2-0002
34. Borodinecs A., Geikins A., Smirnovs S. Energy performance of temporary shelters. IOP Conference Series: Materials Science and Engineering. Volume 660, Issue 1, DOI: 10.1088/1757-899X/660/1/012017, ISSN: 17578981, SCOPUS.
https://www.scopus.com/authid/detail.uri?authorId=7202271079
Matemātika
35. Kokainis M., Asmuss S. Modified multivariate F transform based on B splines. Proceedings of the 11th Conference of the European Society for Fuzzy Logic and Technology (EUSFLAT 2019) Series: Atlantis Studies in Uncertainty Modelling, Volume:1, Pages: 740-747, 2019, Web of Science, Scopus, ISBN 978-94-6252-770-6, ISSN 25896644 DOI:10.2991/eusflat-19.2019.101
http://webofknowledge.com
https://www.scopus.com/authid/detail.uri?authorId=8535228300
https://www.atlantis-press.com/proceedings/eusflat-19/125914871
Matemātika
36. Krastiņš M. Fuzzy approach based money laundering risk assessments. Proceedings of the 11th Conference of the European Society for Fuzzy Logic and Technology (EUSFLAT 2019) Series: Atlantis Studies in Uncertainty Modelling, Volume:1, Pages: 610-613, 2019, Web of Science, ScopusISBN 978-94-6252-770-6, ISSN 25896644, DOI: 10.2991/eusflat-19.2019.84
http://webofknowledge.com
https://www.scopus.com/authid/detail.uri?authorId=57211156576
https://www.atlantis-press.com/proceedings/eusflat-19/125914854
Projekts: lzp-2018/2-0338
37. Šostaks A., Uļjane I., Eļkins A. Many level fuzzy rough approximation spaces induced by many level fuzzy preoders and the related ditopological structures. Proceedings of the 11th Conference of the European Society for Fuzzy Logic and Technology (EUSFLAT 2019) Series: Atlantis Studies in Uncertainty Modelling, Volume:1, Pages: 281-288, 2019, Web of Science, ISBN 978-94-6252-770-6, ISSN 25896644, DOI:10.2991/eusflat-19.2019.41
http://webofknowledge.com
https://www.atlantis-press.com/proceedings/eusflat-19/125914811
Projekts: lzp-2018/2-0338
Matemātika
38. Šostaks A., Uļjane I. Some remarks on topological structures in the context of fuzzy relation mathematical morphology. Proceedings of the 11th Conference of the European Society for Fuzzy Logic and Technology (EUSFLAT 2019) Series: Atlantis Studies in Uncertainty Modelling, Volume:1, Pages: 776-783, 2019, Web of Science, ISBN 978-94-6252-770-6, ISSN 25896644, DOI:10.2991/eusflat-19.2019.106
http://webofknowledge.com
https://www.atlantis-press.com/proceedings/eusflat-19/125914876
Projekts: lzp-2018/2-0338
Matemātika
39. Levane-Petrova K. Līdzsvarotais mūsdienu latviešu valodas tekstu korpuss, tā nozīme gramatikas pētījumos (The Balanced Corpus of Modern Latvian and its role in grammar studies). Valoda: Nozime un Forma, Volume 10, 2019, Pages 131-146, 2019, DOI: 10.22364/vnf.10.12, ISSN: 22559256, ISBN: 978-993418493-2, Scopus
https://www.scopus.com/authid/detail.uri?authorId=36602860500
https://www.apgads.lu.lv/fileadmin/user_upload/lu_portal/apgads/PDF/Valoda-nozime-forma/VNF-10/vnf_10-12_Levane_Petrova.pdf
Valodniecība un literatūrzinātne
Projekts: 1.1.1.1/16/A/219
40. Rituma L., Saulīte B., Nešpore-Bērzkalne G. Latviešu valodas sintaktiski marķētā korpusa gramatikas modelis (The grammar model of Latvian Treebank). Valoda: Nozime un Forma, Volume 10, 2019, Pages 200-216, 2019; DOI: 10.22364/vnf.10.16, ISSN: 22559256, ISBN: 978-993418493-2, Scopus
https://www.scopus.com/authid/detail.uri?authorId=55576340700
Valodniecība un literatūrzinātne
Projekts: 1.1.1.1/16/A/219
41. Sadirbajevs F., Klokovs J. Problems of Computational Mathematics (On the Best Algorithms in Numerical Mathematics). Proceedings oft he 34th International Business Information Management Association Conference. Vision 2025: Education Excellence and Management of Innovations through Sustainable Economic Competitive Advantage. 2019, Pages 13185-13189, ISBN: 978-0-9998551-3-3, Web of Science
http://webofknowledge.com
Matemātika