10,758 research outputs found
Metadata Representations for Queryable ML Model Zoos
No full textMachine learning (ML) practitioners and organizations are building model zoos of pre-trained models, containing metadata describing properties of the ML models and datasets that are useful for reporting, auditing, reproducibility, and interpretability purposes. The metatada is currently not standardised; its expressivity is limited; and there is no interoperable way to store and query it. Consequently, model search, reuse, comparison, and composition are hindered. In this paper, we advocate for standardized ML model metadata representation and management, proposing a toolkit supported to help practitioners manage and query that metadata.Web Information SystemsHuman-Centred Artificial Intelligenc
A Manifesto of Nodalism
No full textThis paper proposes the notion of Nodalism as a means describing contemporary culture and of understanding my own creative practice in electronic music composition. It draws on theories and ideas from Kirby, Bauman, Bourriaud, Deleuze, Guatarri, and Gochenour, to demonstrate how networks of ideas or connectionist neural models of cognitive behaviour can be used to contextualize, understand and become a creative tool for the creation of contemporary electronic music
Optimizing ML Inference Queries Under Constraints
No full textThe proliferation of pre-trained ML models in public Web-based model zoos facilitates the engineering of ML pipelines to address complex inference queries over datasets and streams of unstructured content. Constructing optimal plan for a query is hard, especially when constraints (e.g. accuracy or execution time) must be taken into consideration, and the complexity of the inference query increases. To address this issue, we propose a method for optimizing ML inference queries that selects the most suitable ML models to use, as well as the order in which those models are executed. We formally define the constraint-based ML inference query optimization problem, formulate it as a Mixed Integer Programming (MIP) problem, and develop an optimizer that maximizes accuracy given constraints. This optimizer is capable of navigating a large search space to identify optimal query plans on various model zoos.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Web Information SystemsHuman-Centred Artificial Intelligenc
Building a generalisable ML pipeline at ING
No full textAdvances in data science have caused an increase in the use of Artificial Intelligence (AI), specifically Machine Learning (ML), throughout various fields. Not only in research but in the industry as well, has ML been receiving increasing amounts of interest. Many companies rely on ML models to increase the efficiency of existing processes or offer new services and products. The industry, however, is facing several additional challenges compared to the academic context. One of those challenges is applying the Development Operations (DevOps) model to an ML application, also referred to as MLOps. This thesis sets out to find the specific challenges that practitioners encounter while operationalising ML models. To do so, we perform a single-case case study on an ML pipeline built by the Trade & Communication Surveillance team at the ING bank. This case study consists of conducting a set of interviews and performing a manual code inspection of the pipeline. The team faces challenges ranging from having insufficient time for operationalising each ML project individually to operating in the highlyregulated fintech context. Their pipeline is able to deploy a single ML model but it does not generalise well to other projects. We present the first version of an application that mitigates these challenges. The application is able to deploy ML models to the development environment at ING and can be operated by data scientists to reduce the effort of operationalising an ML model. Computer Science | Software Technolog
'Project smells' - Experiences in Analysing the Software Quality of ML Projects with mllint
No full textMachine Learning (ML) projects incur novel challenges in their development and productionisation over traditional software applications, though established principles and best practices in ensuring the project's software quality still apply. While using static analysis to catch code smells has been shown to improve software quality attributes, it is only a small piece of the software quality puzzle, especially in the case of ML projects given their additional challenges and lower degree of Software Engineering (SE) experience in the data scientists that develop them. We introduce the novel concept of project smells which consider deficits in project management as a more holistic perspective on software quality in ML projects. An open-source static analysis tool mllint was also implemented to help detect and mitigate these. Our research evaluates this novel concept of project smells in the industrial context of ING, a global bank and large software- and data-intensive organisation. We also investigate the perceived importance of these project smells for proof-of-concept versus production-ready ML projects, as well as the perceived obstructions and benefits to using static analysis tools such as mllint. Our findings indicate a need for context-aware static analysis tools, that fit the needs of the project at its current stage of development, while requiring minimal configuration effort from the user. Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Software EngineeringSoftware Technolog
Audiomobiles, Sculptures and Conundrums
No full textRoberto Gerhard was a pioneer of electronic music in England creating a number of substantial concert, theatre and radio works from as early as 1954. Gerhard’s electronic music is one of the richest repositories for understanding the development of the composer’s late compositional technique. Apart from the Symphony no.3, ‘Collages’, none of Gerhard’s electronic music is published. This paper will discuss aspects of Gerhard’s electronic music, focusing on Audiomobiles (1958-59) and Sculptures (1963)
Protozoan Parasites of Rodents and Their Zoonotic Significance in Boyer-Ahmad District, Southwestern Iran
No full textBackgrounds. Wild rodents are reservoirs of various zoonotic diseases, such as toxoplasmosis, babesiosis, and leishmaniasis. The current study aimed to assess the protozoan infection of rodents in Boyer-Ahmad district, southwestern Iran. Materials and Methods. A total of 52 rodents were collected from different parts of Boyer-Ahmad district, in Kohgiluyeh and Boyer-Ahmad province, using Sherman live traps. Each rodent was anesthetized with ether, according to the ethics of working with animals, and was dissected. Samples were taken from various tissues and stool samples were collected from the contents of the colon and small intestines. Moreover, 2 to 5 mL of blood was taken from each of the rodents and the sera were examined for anti-Leishmania antibodies, by ELISA, or anti-T. gondii antibodies, by modified agglutination test (MAT). DNA was extracted from brain tissue samples of each rodent and PCR was used to identify the DNA of T. gondii. Results. Of the 52 stool samples of rodents studied by parasitological methods, intestinal protozoa infection was seen in 28 cases (53.8%). From 52 rodents, 19 (36.5%) were infected with Trichomonas, 10 (19.2%) with Giardia muris, and 11 (21.2%) with Entamoeba spp. Also, 10 cases (19.2%) were infected with Blastocystis, 3 (5.8%) were infected with Chilomastix, 7 (13.5%) were infected with Endolimax, 1 (1.9%) was infected with Retortamonas, 3 (5.77%) were infected with T. gondii, and 6 (11.54%) were infected with Trypanosoma lewisi. Antibodies to T. gondii were detected in the sera of 5 (9.61%) cases. Results of the molecular study showed T. gondii infection in 3 (5.77%) of the rodents. Findings of this study showed that rodents in Kohgiluyeh and Boyer-Ahmad province, southwestern Iran, are infected with several blood and intestinal parasites; some of them might be potential risks to residents and domestic animals in the region
Manerebia prattorum subsp. udima Pyrcz & Boyer 2021, n. ssp.
No full textManerebia prattorum udima Pyrcz & Boyer, n. ssp. (Figs. 2, 7, 8, 11) Type locality. Peru, Cajamarca Department, 7 km S Hacienda Udima Diagnosis. The new subspecies differs from nominate M. prattorum in the paler, orange instead of reddishorange, and consistently wider HWD median band, whose outer edges are diffused and extend distally; it is also slightly larger than the nominate subspecies. Description. MALE (Figs. 2A, 11B): Head: eyes chocolate brown, naked, lustrous; labial palpi two times length of head, covered with black hair-like scales, longer ventrally, and some sparse yellow basal scales; antennae slender, 2/5 th length of costa, mostly naked, dorsally brown, ventrally chestnut, club formed gradually, ventrally sandy yellow. Thorax: black, mostly naked; legs covered with lustrous, brown and sandy yellow scales becoming dominant on tibiae and tarsi. Wings: FW length 15.5–17.5 mm, n=15, mean: 16.7 mm. FWD uniform lustrous dark brown. HWD lustrous dark brown, with long hair-like scales in basal part, crossed by an oblique, nearly straight, 3 mm wide, rich orange median band which is slightly wider in middle section and has a sharp inner and somewhat diffused distal edge, FWV dull, dark brown, slightly lighter distally, with a faint, irregular dark brown submarginal line. HWV dull dark brown, a shade lighter than forewing, with a dark brown cross-cell narrow band, a faint, sinuate dark brown submarginal line, and a pale yellow median band shaped as on dorsum. Abdomen: Dorsally and laterally covered with black, ventrally with grey brown scales. Genitalia (Fig. 7D): Uncus long, aligned with tegumen dorsum, with a blunt tip slightly curved downwards, gnathos short, one-third length of uncus, stout at base with a sharp tip; pedunculus prominent, stout, curved downwards; valva elongated with a prominent, blunt dorsal process in middle, and a narrow apical half, ending with four teeth pointing distally; saccus medium deep, narrow; aedeagus s-shaped, short, with a massive apical part. FEMALE (Figs. 2B, 11A): Sexual dimorphism is expressed in larger size of female (FW length: 18–19 mm, mean: 18.5 mm, n=4), and lighter ventral colour with prominent whitish and magenta distal suffusion. Genitalia (Fig. 8C): Anal papillae prominent, covered with long setae, with a strongly sclerotized basal plate, projecting basally and dorsally into short, sharp apophysis-like tips; membrane below papillae with a moderately sclerotized flange, postvaginal lamella moderately sclerotized and wide, produced into two prominent lateral, folded flaps; antevaginal lamella strongly sclerotized, arched, pocketlike; antrum strongly sclerotized; ductus bursae wide and short, opening gradually into a large, oval corpus bursae, with two parallel signa in dorsal position extending over two-thirds of bursa length. Molecular data: BI (Fig. 12) and ML (Fig. 13) trees, as well as species-delimitation methods (Figs. 14, 15), and genetic distances (Suplementary material 2) support the separate specific status of M. prattorum udima n. ssp. in relation to M. inderena clara, M. inderena ssp., and M. inderena antioquiana. Nevertheless, its phylogenetic position is not clear, because M. prattorum udima n. ssp. appears as sister species to M. inderena antioquiana in the BI analysis, and according to the ML method, it is the sister group to M. inderena clara and M. inderena ssp. Both analyses have a good branch support. The nominotypical subspecies of M. prattorum has not yet been barcoded. Etymology. This subspecies is named after the village of Hacienda Udima, situated just above the type locality. The name is treated as a feminine noun in apposition. Type material: Holotype ♂: Peru, Cajamarca, 7 km S Hacienda Udima, S06°50'25 W 70°06'14 2000 m, 14– 16.v.1982, G. Lamas & E. Pérez leg., MUSM; Paratypes (35 ♂ and 7 ♀): 15 ♂ and 4 ♀: Cajamarca, La Florida, vía Hacienda Udima, 1900–1950 m, 16.vi.2018, T. Pyrcz leg., CEPUJ; 19 ♂ and 3 ♀: Cajamarca, Bosque de Udima, la Florida, S 06°50'25 W 70°06'14, 2000 m 16.vi.2018, P. Boyer leg., PBF; 9 ♂ and 3 ♀: Cajamarca, La Florida, vía Hacienda Udima, 1900–1950 m, 16.vi.2018, leg. J. Farfán, MUSA; 2 ♂ and 1 ♀: Cajamarca, La Florida, vía Hacienda Udima, 1900–1950 m, 16.vi.2018, leg. J. Cerdeña, MUSA; 2 ♂: Cajamarca, 7 km S Hacienda Udima, 2000 m, 14–16.v.1982, G. Lamas & E. Pérez leg., MUSM. Remarks. We consider M. prattorum and M. inderena as specifically different, with the latter being most likely a complex of allopatric species, despite the fact that they cluster together on both the ML and Bayesian Inference trees, because of their highly different colour patterns, with that of M. prattorum in both the nominate and the new subspecies marked by a wide HWD orange band, which is extremely conspicuous when the butterfly is on the wing, and might play an important signaling role in mating. Also, the HWV median band of M. prattorum is two times as wide as in any subspecies of M. inderena. Finally, M. prattorum flies at lower elevations than M. inderena, occurring at some 1800–2000 m, whereas most subspecies of M. inderena occur at 2200–2600 m, and the nominate is found even as high as 2800 m. M. prattorum udima n. ssp. has been reported so far exclusively from the upper valley of the Río Zaña (Fig. 11). It is possible that it is actually endemic to that area, since it is found at approximately 2000 m above sea level and there are virtually no cloud forests northwards from the type locality on the western slopes of the Andes, as far as the area of Las Minas north of the La Porculla Pass, where the type locality of M. prattorum prattorum is situated.Published as part of Mahecha-J, Oscar, Florczyk, Klaudia, Willmott, Keith, Cerdeña, José, Zubek, Anna, Boyer, Pierre, Farfán, Jackie, Lachowska-Cierlik, Dorota & Pyrcz, Tomasz W., 2021, Solving the cryptic diversity of the genus Manerebia Staudinger in northern Peru description of new species and considerations on the biogeographical role of the Huancabamba Deflection (Nymphalidae: Satyrinae: Pronophilina), pp. 201-237 in Zootaxa 5072 (3) on pages 207-213, DOI: 10.11646/zootaxa.5072.3.1, http://zenodo.org/record/574454
Music for classical guitar by South African composers : a historical survey, notes on selected works and a general catalogue
No full textIncludes abstract.Includes bibliographical references (leaves 296-309).This is the first comprehensive investigation of music for, or including, the classical guitar by South African composers. The focus of this research has been, firstly, to uncover as much of the repertoire as possible, and, secondly, to collate, study, catalogue and report on the information. A brief historical survey of the guitar in South Africa provides the context within which this study was conducted. The primary sources of quantitative data collection were through the archival catalogues of the South African Music Rights Organisation and through personal contact with guitarists, composers and guitar teachers. Other sources consulted were publishers, broadcasting corporations, recording companies, libraries and the internet. The body of the dissertation comprises biographical sketches, background notes, analyses and technical notes on 17 selected solo and chamber works dating from 1947 to 2007 by some of South Africa's most prominent composers and guitaristcomposers. The repertoire ranges in style from the traditional and ethnically inspired to the experimental and abstract. As this is an empirical survey, each selected entry includes details on instrumentation, duration, level of difficulty, number of pages, scordatura, commissions or requests, sources or publishers, premières and recordings. A biography of each composer is provided as well as background notes which offer an overview of the selected work. The notes discuss historical, cultural, musical and extra-musical influences, and frequently include references to interview material. The commentaries on the selected works, with musical examples, include an analytical component describing structure, form, stylistic and compositional elements, while the technical observations include performance suggestions and a grading for each work
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