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Journal articles on the topic 'Join up'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Rutynskyi, Mikhailо Yosypovych, and Ksenia Volodymyrivna Skrypayi. "FORCE MAJEURE DISRUPTIONS OF TOURIST SERVICES BY THE TOUR OPERATOR "JOIN UP!" IN 2018." GEOGRAPHY AND TOURISM, no. 47 (2019): 69–87. http://dx.doi.org/10.17721/2308-135x.2019.47.69-87.

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The purpose. The urgency of the presented scientific work is that the study of risks and force majeure disruptions of tourist services by the tourist operator "Join Up!" Will prevent their further occurrence. The object of research is the travel company "Join Up!". The purpose of the study: to investigate the reasons for the failure of service programs and the dynamics of the number of victims, to analyze the public resonance and the consequences of the failure of the programs and to make a prediction of the image losses of the tour operator "Join Up!" іn 2018 and 2019. Methods. The research u

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2

Anscombe, Nadya. "Join up the quantum dots." Nature Photonics 1, no. 7 (2007): 360–61. http://dx.doi.org/10.1038/nphoton.2007.100.

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3

Zhu, Zichen, Xiao Hu, and Manos Athanassoulis. "NOCAP: Near-Optimal Correlation-Aware Partitioning Joins." Proceedings of the ACM on Management of Data 1, no. 4 (2023): 1–27. http://dx.doi.org/10.1145/3626739.

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Storage-based joins are still commonly used today because the memory budget does not always scale with the data size. One of the many join algorithms developed that has been widely deployed and proven to be efficient is the Hybrid Hash Join (HHJ), which is designed to exploit any available memory to maximize the data that is joined directly in memory. However, HHJ cannot fully exploit detailed knowledge of the join attribute correlation distribution. In this paper, we show that given a correlation skew in the join attributes, HHJ partitions data in a suboptimal way. To do that, we derive the o

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Neumann, Thomas. "Technical Perspective: From Binary Join to Free Join." ACM SIGMOD Record 53, no. 1 (2024): 24. http://dx.doi.org/10.1145/3665252.3665258.

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Most queries access data from more than one relation, which makes joins between relations an extremely common operation. In many cases the execution time of a query is dominated by the processing of the involved joins. This observation has led to a wide range of techniques to speed up join processing like, e.g. efficient hash joins, bitmap filters to eliminate non-joining tuples early on, blocked lookups to hide cache latencies, and many others.

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Hayes, Derren. "Timpson's beefed-up remit can join up health and care." Children and Young People Now 2016, no. 17 (2016): 3. http://dx.doi.org/10.12968/cypn.2016.17.3.

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6

Shuiying Yu, Shuiying Yu, Yinting Zheng Shuiying Yu, Fan Zhang Yinting Zheng, Hanhua Chen Fan Zhang, and Hai Jin Hanhua Chen. "TriJoin: A Time-Efficient and Scalable Three-Way Distributed Stream Join System." 網際網路技術學刊 24, no. 2 (2023): 475–85. http://dx.doi.org/10.53106/160792642023032402024.

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<p>Stream join is one of the most fundamental operations in data stream processing applications. Existing distributed stream join systems can support efficient two-way join, which is a join operation between two streams. Based the two-way join, implementing a three-way join require to be split into double two-way joins, where the second two-way join needs to wait for the join result transmitted from the first two-way join. We show through experiments that such a design raises prohibitively high processing latency. To solve this problem, we propose TriJoin, a time-efficient three-way dist

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Артюх, Катерина. "Єгипет із "Join UP!". Ваше досконале літо". Міжнародний туризм, № 4 (130), серпень - вересень (2016): 8–9.

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8

Артюх, Катерина. "Єгипет із "Join UP!". Ваше досконале літо". Міжнародний туризм, № 4 (130), серпень - вересень (2016): 8–9.

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9

Артюх, Катерина. "Єгипет із "Join UP!". Ваше досконале літо". Міжнародний туризм, № 4 (130), серпень - вересень (2016): 8–9.

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10

Assadi, Michael, Christopher Martin, Eliot Siegel, and Dennis Mathis. "Body Join Drilling for One-Up-Assembly." SAE International Journal of Aerospace 6, no. 1 (2013): 188–94. http://dx.doi.org/10.4271/2013-01-2296.

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11

Huang, Wentao, Yunhong Ji, Xuan Zhou, Bingsheng He, and Kian-Lee Tan. "A Design Space Exploration and Evaluation for Main-Memory Hash Joins in Storage Class Memory." Proceedings of the VLDB Endowment 16, no. 6 (2023): 1249–63. http://dx.doi.org/10.14778/3583140.3583144.

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In this paper, we seek to perform a rigorous experimental study of main-memory hash joins in storage class memory (SCM). In particular, we perform a design space exploration in real SCM for two state-of-the-art join algorithms: partitioned hash join (PHJ) and non-partitioned hash join (NPHJ), and identify the most crucial factors to implement an SCM-friendly join. Moreover, we present a rigorous evaluation with a broad spectrum of workloads for both joins and provide an in-depth analysis for choosing the most suitable algorithm in real SCM environment. With the most extensive experimental anal

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12

Ballico, Edoardo. "Joins, Secant Varieties and Their Associated Grassmannians." Mathematics 12, no. 9 (2024): 1274. http://dx.doi.org/10.3390/math12091274.

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We prove a strong theorem on the partial non-defectivity of secant varieties of embedded homogeneous varieties developing a general set-up for families of subvarieties of Grassmannians. We study this type of problem in the more general set-up of joins of embedded varieties. Joins are defined by taking a closure. We study the set obtained before making the closure (often called the open part of the join) and the set added after making the closure (called the boundary of the join). For a point q of the open part, we give conditions for the uniqueness of the set proving that q is in the open part

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Rui, Ran, Hao Li, and Yi-Cheng Tu. "Efficient join algorithms for large database tables in a multi-GPU environment." Proceedings of the VLDB Endowment 14, no. 4 (2020): 708–20. http://dx.doi.org/10.14778/3436905.3436927.

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Relational join processing is one of the core functionalities in database management systems. It has been demonstrated that GPUs as a general-purpose parallel computing platform is very promising in processing relational joins. However, join algorithms often need to handle very large input data, which is an issue that was not sufficiently addressed in existing work. Besides, as more and more desktop and workstation platforms support multi-GPU environment, the combined computing capability of multiple GPUs can easily achieve that of a computing cluster. It is worth exploring how join processing

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14

Dinsdale, Paul. "Sixteen groups join up on 2006 Pay talks." Nursing Standard 19, no. 48 (2005): 6–7. http://dx.doi.org/10.7748/ns.19.48.6.s5.

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15

Dyck, Noel, and Ryan Gauvin. "Dressing up to join the games: Vancouver 2010." Visual Studies 27, no. 2 (2012): 196–203. http://dx.doi.org/10.1080/1472586x.2012.677259.

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16

de Leeuw, E. "Health promotion impact factor: join up, no translation." Health Promotion International 21, no. 4 (2006): 257–58. http://dx.doi.org/10.1093/heapro/dal039.

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17

Hayes, Derren. "Goodwill's wider brief can join up child policy." Children and Young People Now 2017, no. 12 (2017): 20. http://dx.doi.org/10.12968/cypn.2017.12.20.

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18

Birler, Altan, Alfons Kemper, and Thomas Neumann. "Robust Join Processing with Diamond Hardened Joins." Proceedings of the VLDB Endowment 17, no. 11 (2024): 3215–28. http://dx.doi.org/10.14778/3681954.3681995.

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Join ordering and join processing has a huge impact on query execution and can easily affect the query response time by orders of magnitude. In particular, when joins are potentially growing n:m joins, execution can be very expensive. This can be seen by examining the sizes of intermediate results: If a join query produces many redundant tuples that are later eliminated, the query is likely expensive, which is not justified by the query result. This gives the query a diamond shape, with intermediate results larger than the inputs and the output. This occurs frequently in various workloads, par

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Lee, Suhyun, Chaemin Lim, Jinwoo Choi, et al. "SPID-Join: A Skew-resistant Processing-in-DIMM Join Algorithm Exploiting the Bank- and Rank-level Parallelisms of DIMMs." Proceedings of the ACM on Management of Data 2, no. 6 (2024): 1–27. https://doi.org/10.1145/3698827.

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Recent advances in Dual In-line Memory Modules (DIMMs) allow DIMMs to support Processing-In-DIMM (PID) by placing In-DIMM Processors (IDPs) near their memory banks. Prior studies have shown that in-memory joins can benefit from PID by offloading their operations onto the IDPs and exploiting the high internal memory bandwidth of DIMMs. Aimed at evenly balancing the computational loads between the IDPs, the existing algorithms perform IDP-wise global partitioning on input tables and then make each IDP process a partition of the input tables. Unfortunately, we find that the existing PID join algo

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20

Justen, David, Daniel Ritter, Campbell Fraser, et al. "POLAR: Adaptive and Non-invasive Join Order Selection via Plans of Least Resistance." Proceedings of the VLDB Endowment 17, no. 6 (2024): 1350–63. http://dx.doi.org/10.14778/3648160.3648175.

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Join ordering and query optimization are crucial for query performance but remain challenging due to unknown or changing characteristics of query intermediates, especially for complex queries with many joins. Over the past two decades, a spectrum of techniques for adaptive query processing (AQP)---including inter-/intra-operator adaptivity and tuple routing---have been proposed to address these challenges. However, commercial database systems in practice do not implement holistic AQP techniques because they increase the system complexity (e.g., intertwined planning and execution) and thus, com

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Masitoh, Siti, Sri Widayanti, and Dita Atasa. "THE EFFECT OF ACCELERATOR START-UP PROGRAM ON THE PERFORMANCE OF FOOD AND BEVERAGES START-UP IN INDONESIA." International Journal of Multidisciplinary Research and Literature 2, no. 5 (2023): 576–86. http://dx.doi.org/10.53067/ijomral.v2i5.147.

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This study aims to determine the effect of mentoring marketing, accounting, and production on the acceleration start-up program to the performance of the food and beverages start-up in Indonesia. For the Accelererator Start-Up using 3 variable which is mentoring marketing, finance, and production. The research method used is the quantitative analysis using a questionnaire. The number of samples in this study was 31 food and beverages start-up which join Food Start-Up Inovation Accelerator Program in Accelerice Indonesia. This study uses warpPLS software 7.0 to process data to find answers to h

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22

WYNN, M. T., W. M. P. VAN DER AALST, A. H. M. TER HOFSTEDE, and D. EDMOND. "SYNCHRONIZATION AND CANCELATION IN WORKFLOWS BASED ON RESET NETS." International Journal of Cooperative Information Systems 18, no. 01 (2009): 63–114. http://dx.doi.org/10.1142/s0218843009002002.

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Workflow languages offer constructs for coordinating tasks. Among these constructs are various types of splits and joins. One type of join, which shows up in various incarnations, is the OR-join. Different approaches assign a different (often only intuitive) semantics to this type of join, though they do share the common theme that branches that cannot complete will not be waited for. Many systems and languages struggle with the semantics and implementation of the OR-join because its non-local semantics require a synchronization depending on the analysis of future execution paths. The presence

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23

Andrusiak, Natalia, and Natalia Anipko. "Travel products of the tour operator Join Up! under state of war." Scientific Herald of Chernivtsi University. Geography, no. 849 (December 31, 2024): 56–62. https://doi.org/10.31861/geo.2024.849.56-62.

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In the context of a full-scale war, the Ukrainian tourism industry has faced the most difficult challenge since Ukraine's independence. The existence of the tourism industry in a time of war is contradictory. However, the Ukrainian tourism business was able to adapt to such terrible challenges and continued to exist. An example of one of the best tourism companies that has continued to operate, providing jobs, offering new tourist destinations, increasing flight programmes, etc. and helping the Armed Forces of Ukraine since the first days of the war is the Join Up tour operator. It is a multid

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24

SELTZER, RICHARD. "U.S., Russia join efforts to clean up nuclear sites." Chemical & Engineering News 71, no. 19 (1993): 20–22. http://dx.doi.org/10.1021/cen-v071n019.p020.

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25

Baker, John. "Pair join up for R&D biotechnology push." Biotechnology & Biotechnological Equipment 21, no. 2 (2007): 132. http://dx.doi.org/10.1080/13102818.2007.10817432.

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26

Samela, Crystal, and Heather Martin. "How Chegg Blew Up Our Exams." Canadian Perspectives on Academic Integrity 4, no. 2 (2021): 18. http://dx.doi.org/10.55016/ojs/cpai.v4i2.74155.

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Join the presenter for an experience-based discovery about the file-sharing giant Chegg. Engage in one institutions journey when they learned many of their exams were virtually compromised, how they addressed the issue, and how they moved forward. During this session the Chegg Honor Code investigation will be described, and the results shared.

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27

Majumdar, Neepa. "Breathing in and out with Blow-Up." Short Film Studies 10, no. 1 (2020): 103–6. http://dx.doi.org/10.1386/sfs.10.1.103_1.

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Abstract This analysis focuses on Blow-Up's play with synchronous and asynchronous sound; the use of breath and frame size to join the visual and sonic dimensions of the concept of blowing up; and its commitment to the embodiment of both viewer and the material of cinema.

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28

WANG, Chong, Suqian ZHAO, and Shuwen CUI. "Discrete Morse Theory on Join of Digraphs." Wuhan University Journal of Natural Sciences 27, no. 4 (2022): 303–12. http://dx.doi.org/10.1051/wujns/2022274303.

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For given two digraphs, we can construct a larger digraph through join. The two digraphs that make up the join are called the factors of the join. In this paper, we give a necessary and sufficient condition that the function on the join determined by the discrete Morse functions on factors is a discrete Morse function. Moreover, we further prove the discrete Morse theory on join when the factors satisfy certain conditions.

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29

Meyer, Isabelle de. "Take up your arms." Indogermanische Forschungen 127, no. 1 (2022): 91–130. http://dx.doi.org/10.1515/if-2022-0006.

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Abstract This article investigates the etymology of four Latin lexemes starting with /arm-/: arma, armus, armilla and armenta. It examines whether they are men- or mo-derivatives of the root commonly reconstructed as *h₂er- ‘to join’. The combination of an in-depth analysis of 1) the use of armenta in Latin, and ἀραρίσκω and ἁρμόζω in Greek, and 2) similar stems in other IE languages, particularly Vedic īrmá-, Latvian ir̃mi et al., OCS ramo and jarьmъ et al., results in the conclusion that two stems should be differentiated. Armus and the other IE words for ‘shoulder; arm’ point to a second la

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30

Fox, Jeffrey L. "Ten large companies join NIH to speed up drug discovery." Nature Biotechnology 32, no. 4 (2014): 307. http://dx.doi.org/10.1038/nbt0414-307a.

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31

Wade, Grace, and James Dinneen. "Thousands join ‘Stand Up for Science’ rallies across the US." New Scientist 265, no. 3534 (2025): 15. https://doi.org/10.1016/s0262-4079(25)00413-0.

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32

Oguz, Damla, Shaoyi Yin, Belgin Ergenç, Abdelkader Hameurlain, and Oguz Dikenelli. "Extended Adaptive Join Operator with Bind-Bloom Join for Federated SPARQL Queries." International Journal of Data Warehousing and Mining 13, no. 3 (2017): 47–72. http://dx.doi.org/10.4018/ijdwm.2017070103.

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The goal of query optimization in query federation over linked data is to minimize the response time and the completion time. Communication time has the highest impact on them both. Static query optimization can end up with inefficient execution plans due to unpredictable data arrival rates and missing statistics. This study is an extension of adaptive join operator which always begins with symmetric hash join to minimize the response time, and can change the join method to bind join to minimize the completion time. The authors extend adaptive join operator with bind-bloom join to further redu

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Lee, Edmond W. H., John Rhodes, and Benjamin Steinberg. "Join irreducible semigroups." International Journal of Algebra and Computation 29, no. 07 (2019): 1249–310. http://dx.doi.org/10.1142/s0218196719500498.

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We begin a systematic study of finite semigroups that generate join irreducible members of the lattice of pseudovarieties of finite semigroups, which are important for the spectral theory of this lattice. Finite semigroups [Formula: see text] that generate join irreducible pseudovarieties are characterized as follows: whenever [Formula: see text] divides a direct product [Formula: see text] of finite semigroups, then [Formula: see text] divides either [Formula: see text] or [Formula: see text] for some [Formula: see text]. We present a new operator [Formula: see text] that preserves the proper

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34

Esmailoghli, Mahdi, Jorge-Arnulfo Quiané-Ruiz, and Ziawasch Abedjan. "MATE." Proceedings of the VLDB Endowment 15, no. 8 (2022): 1684–96. http://dx.doi.org/10.14778/3529337.3529353.

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A core operation in data discovery is to find joinable tables for a given table. Real-world tables include both unary and n-ary join keys. However, existing table discovery systems are optimized for unary joins and are ineffective and slow in the existence of n-ary keys. In this paper, we introduce Mate, a table discovery system that leverages a novel hash-based index that enables n-ary join discovery through a space-efficient super key. We design a filtering layer that uses a novel hash, Xash. This hash function encodes the syntactic features of all column values and aggregates them into a su

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35

Gasparik, Tibor, and Yuriy A. Litvin. "Stability of Na2Mg2Si2O7 and melting relations on the forsterite-jadeite join at pressures up to 22 GPa." European Journal of Mineralogy 9, no. 2 (1997): 311–26. http://dx.doi.org/10.1127/ejm/9/2/0311.

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36

Allu, Mr M. Vamsi Krishna. "POWER EFFICIENT MODIFIED FIFO BASED HASH JOIN ARCHITECTURE." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 08 (2024): 1–12. http://dx.doi.org/10.55041/ijsrem36906.

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The main objective of this concept is to design a hash join operator with at-most efficiency. This project presents a non-collision parallel static random-access memory (SRAM)-based hash join architecture. This architecture utilizes multiple hash functions and content addressable memories (CAMs) to eliminate hash collision, thereby ensuring a worst constant memory access for each phase in the hash join algorithm and consequently improving the hash join throughput. These Hash joins are useful in the implementation of a relational database management system, sorting, aggregation. In the era of I

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37

Shaffer, Elisa. "Join the Sons of Liberty!" Journal of Technology-Integrated Lessons and Teaching 3, no. 2 (2024): 67–69. https://doi.org/10.13001/jtilt.v3i2.9153.

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Learners will create a colonial character to explore 1773 Boston and gain insight into the underpinnings of the events that led up to and occurred during the Boston Tea Party on December 16, 1773. Using Bloxels, learners will travel the streets of Boston, interacting with different characters and learning about their concerns and events. They will also interact with British soldiers and tax collectors. Additionally, they will be given an opportunity to join the Sons of Liberty and participate in the Boston Tea Party.

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Handelsman, Jaynee A. "Join In and Speak Up: We Want to Hear Your Voice." ASHA Leader 21, no. 2 (2016): 8–9. http://dx.doi.org/10.1044/leader.ftp.21022016.8.

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39

Tew, Jerry. "Asset-based approaches and 'troubled families': can the discourses join up?" Families, Relationships and Societies 2, no. 3 (2013): 467–70. http://dx.doi.org/10.1332/204674313x13806230862894.

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40

Gebhardt, Rolf. "Speeding up hepatocyte proliferation: How triiodothyronine and β-catenin join forces". Hepatology 59, № 6 (2014): 2074–76. http://dx.doi.org/10.1002/hep.26984.

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41

Romero, Flávio Ramalho, Roberto Bezerra Vital, Marco Antônio Zanini, Luis Gustavo Ducati, and Roberto Colichio Gabarra. "Long-term follow-up in sacroiliac joint pain patients treated with radiofrequency ablative therapy." Arquivos de Neuro-Psiquiatria 73, no. 6 (2015): 476–79. http://dx.doi.org/10.1590/0004-282x20150049.

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Sacroiliac joint (SIJ) pain is responsible for up to 40% of all cases of lumbar back pain.Objective Report the long-term efficacy of radiofrequency denervation for sacroiliac joint pain at six, twelve and eighteen months.Method Third-two adults’ patients with sacroiliac join pain diagnosis were included for a prospective study. Primary outcome measure was pain intensity on the Numeric Rating Scale (NRS). Secondary outcome measure was Patient Global Impression of Change Scale (PGIC).Results Short-term pain relief was observed, with the mean NRS pain score decreasing from 7.7 ± 1.8 at baseline t

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42

Ye, Xinyi, Xiangyang Gou, Lei Zou, and Wenjie Zhang. "AJOSC: Adaptive Join Order Selection for Continuous Queries." Proceedings of the ACM on Management of Data 3, no. 3 (2025): 1–27. https://doi.org/10.1145/3725263.

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Multi-way join, which refers to the join operation among multiple tables, is widely used in database systems. With the development of the Internet and social networks, a new variant of the multi-way join query has emerged, requiring continuous monitoring of the query results as the database is updated. This variant is called continuous multi-way join. The join order of continuous multi-way join significantly impacts the operation's cost. However, existing methods for continuous multi-way join order selection are heuristic, which may fail to select the most efficient orders. On the other hand,

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43

Hu, Xiao. "Fast Matrix Multiplication for Query Processing." Proceedings of the ACM on Management of Data 2, no. 2 (2024): 1–25. http://dx.doi.org/10.1145/3651599.

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This paper studies how to use fast matrix multiplication to speed up query processing. As observed, computing a two-table join and then projecting away the join attribute is essentially the Boolean matrix multiplication problem, which can be significantly improved with fast matrix multiplication. Moving beyond this basic two-table query, we introduce output-sensitive algorithms for general join-project queries using fast matrix multiplication. These algorithms have achieved a polynomially large improvement over the classic Yannakakis framework. To the best of our knowledge, this is the first t

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44

George, William P. "Theologically Shoring Up the Law of the Sea." Theological Studies 84, no. 2 (2023): 265–92. http://dx.doi.org/10.1177/00405639231169965.

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In Laudato Si’, Pope Francis highlights the oceans as integral to our threatened common home and stresses the need for more effective ocean governance. Theologians can help to meet that need. By turning their attention to the UN Convention on the Law of the Sea (UNCLOS) and its further development, and by practicing “ocean empathy,” they can join ocean scientists, NGOs, international lawyers, and others in caring for the oceans by shoring up the law of the sea.

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Hertzschuch, Axel, Claudio Hartmann, Dirk Habich, and Wolfgang Lehner. "Turbo-charging SPJ query plans with learned physical join operator selections." Proceedings of the VLDB Endowment 15, no. 11 (2022): 2706–18. http://dx.doi.org/10.14778/3551793.3551825.

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The optimization of select-project-join (SPJ) queries entails two major challenges: (i) finding a good join order and (ii) selecting the best-fitting physical join operator for each single join within the chosen join order. Previous work mainly focuses on the computation of a good join order, but leaves open to which extent the physical join operator selection accounts for plan quality. Our analysis using different query optimizers indicates that physical join operator selection is crucial and that none of the investigated query optimizers reaches the full potential of optimal operator selecti

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Jiang, Wenqi, Oleh-Yevhen Khavrona, Martin Parvanov, and Gustavo Alonso. "SwiftSpatial: Spatial Joins on Modern Hardware." Proceedings of the ACM on Management of Data 3, no. 3 (2025): 1–27. https://doi.org/10.1145/3725361.

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Spatial joins are among the most time-consuming spatial queries, remaining costly even in parallel and distributed systems. In this paper, we explore hardware acceleration for spatial joins by proposing SwiftSpatial, an FPGA-based accelerator that can be deployed in data centers and at the edge. SwiftSpatial contains multiple high-performance join units with innovative hybrid parallelism, several efficient memory management units, and an extensible on-chip join scheduler that supports the popular R-tree synchronous traversal and partition-based spatial-merge (PBSM) algorithms. Benchmarked agai

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47

Sandak, Anna, and Monica Casale. "Beyond spectral range – Welcome to join NIRITALIA 2020." NIR news 31, no. 5-6 (2020): 1–3. https://doi.org/10.1177/0960336020944006.

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After the great success of the 8th Italian Symposium of Near-infrared Spectroscopy, NIRITALIA 2018,1 SISNIR decided to cross the border and hold the next biennial conference in Slovenia. The 9th National Symposium of NIR Spectroscopy, NIRITALIA 2020, organized by the Italian Society for Near Infrared Spectroscopy (SISNIR), in collaboration with the InnoRenew CoE and University of Primorska, will bring together important players from the world of research and industry working with NIR spectroscopy. Conference topics include implementation of NIR spectroscopy in the following fields: agriculture

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Wade, Andrew. "A Boom with a Queue." Engineer 302, no. 7949 (2023): 14–17. https://doi.org/10.12968/s0013-7758(25)90188-2.

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Chen, Zhi Yuan, Shao Bin Huang, Lin Shan Shen, and Shuai Yang. "A New Approach of Distributed Query Processing Based on Database Grid." Applied Mechanics and Materials 328 (June 2013): 248–53. http://dx.doi.org/10.4028/www.scientific.net/amm.328.248.

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Abstract:

Distributed query processing technology is a difficult problem of data query, at the moment, the research and result of the query processing technology which is in view of grid environment is seldom. On the basis of the current grid standard and technology and aiming at the research of distributed relation join algorithm which adapts to grid environment, the paper designs the relevant solutions, achieves the efficient distributed query processing. For the characteristics of database grid, come up with the algorithm of relation join operation in database grid-symmetrical same-ordered semi-join

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Maliszewski, Kajetan, Jorge-Arnulfo Quiané-Ruiz, Jonas Traub, and Volker Markl. "What is the price for joining securely?" Proceedings of the VLDB Endowment 15, no. 3 (2021): 659–72. http://dx.doi.org/10.14778/3494124.3494146.

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Abstract:

Protection of personal data has been raised to be among the top requirements of modern systems. At the same time, it is now frequent that the owner of the data and the owner of the computing infrastructure are two entities with limited trust between them (e. g., volunteer computing or the hybrid-cloud). Recently, trusted execution environments (TEEs) became a viable solution to ensure the security of systems in such environments. However, the performance of relational operators in TEEs remains an open problem. We conduct a comprehensive experimental study to identify the main bottlenecks and c

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