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The Inverted Multi-Index

Artem Babenko, Victor Lempitsky
<span title="2015-06-01">2015</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/3px634ph3vhrtmtuip6xznraqi" style="color: black;">IEEE Transactions on Pattern Analysis and Machine Intelligence</a> </i> &nbsp;
This structure called the inverted multi-index generalizes the inverted index idea by replacing the standard quantization within inverted indices with product quantization.  ...  For very similar retrieval complexity and preprocessing time, inverted multi-indices achieve a much denser subdivision of the search space compared to inverted indices, while retaining their memory efficiency  ...  Overall, it can be observed that for the same level of compression, the use of the inverted multi-indices gives Multi-D-ADC a very substantial speed advantage (about an order of magnitude for comparable  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/tpami.2014.2361319">doi:10.1109/tpami.2014.2361319</a> <a target="_blank" rel="external noopener" href="https://www.ncbi.nlm.nih.gov/pubmed/26357346">pmid:26357346</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/tjh5cgacjreu3bsz76qjmqal3i">fatcat:tjh5cgacjreu3bsz76qjmqal3i</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20171108035058/http://www.robots.ox.ac.uk/~vilem/cvpr2012.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/5b/81/5b81a5c1394e227cfff8406c0c4e476fd3cc4852.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/tpami.2014.2361319"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>

The inverted multi-index

A. Babenko, V. Lempitsky
<span title="">2012</span> <i title="IEEE"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/ilwxppn4d5hizekyd3ndvy2mii" style="color: black;">2012 IEEE Conference on Computer Vision and Pattern Recognition</a> </i> &nbsp;
This structure called the inverted multi-index generalizes the inverted index idea by replacing the standard quantization within inverted indices with product quantization.  ...  For very similar retrieval complexity and preprocessing time, inverted multi-indices achieve a much denser subdivision of the search space compared to inverted indices, while retaining their memory efficiency  ...  Overall, it can be observed that for the same level of compression, the use of the inverted multi-indices gives Multi-D-ADC a very substantial speed advantage (about an order of magnitude for comparable  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/cvpr.2012.6248038">doi:10.1109/cvpr.2012.6248038</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/cvpr/BabenkoL12.html">dblp:conf/cvpr/BabenkoL12</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/gbluzgxrm5ci3kj3geydewwsb4">fatcat:gbluzgxrm5ci3kj3geydewwsb4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20171108035058/http://www.robots.ox.ac.uk/~vilem/cvpr2012.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/5b/81/5b81a5c1394e227cfff8406c0c4e476fd3cc4852.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/cvpr.2012.6248038"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>

On the Correctness of Inverted Index Based Public-Key Searchable Encryption Scheme for Multi-time Search [article]

Shiyu Ji
<span title="2016-08-24">2016</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
In this short note we argue that the state-of-art inverted index based public key searchable encryption scheme proposed by Wang et al may not be completely correct by giving a counterexample.  ...  Introduction In INFOCOM 2015, Wang et al [1] proposed the first practical inverted index based public-key searchable encryption scheme with support for multi-time search.  ...  • IndexGen(M , I): Suppose the inverted index I is given as follows:t ω3 = 3 I 3 t ω2 = 2 I 2 t ω1 = 1 I 1 t σ11 = 6 t σ12 = 1 t σ21 = 2 t σ22 = 3 t σ31 = 1 t σ32 = 2Here t σij = f (σ ij ), and t  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1608.06753v1">arXiv:1608.06753v1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/c3zejgu37ffzfkljbq4rmi5dju">fatcat:c3zejgu37ffzfkljbq4rmi5dju</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200908112355/https://arxiv.org/pdf/1608.06753v1.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/df/05/df0517244330455073105e439e20b232a7a53211.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1608.06753v1" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

A Multi-level Inverted Index Technique for Structural Document Search
구조화 문서 검색을 위한 다단계 역색인 기법

Jong-Ik Kim
<span title="2008-08-29">2008</span> <i title="Korea Information Processing Society"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/kscksxivbzcorlpqrb5fnpcvoe" style="color: black;">The KIPS Transactions PartB</a> </i> &nbsp;
In general, we can use an inverted index for retrieving element lists from structured documents. An inverted index can retrieve a list of elements that have the same tag name.  ...  Our inverted index can retrieve element lists for path segments in a parent-child relationship.  ...  엘리먼트 리 스트는 역 색인(Inverted Index)이라 부르는 자료구조에 의 해 쉽게 추출될 수 있다. 역 색인은 [태그 이름, 엘리먼트 리스트] 쌍을 B+ 트리 등에 저장한 색인 구조를 말하며, 색 인의 키값으로 태그이름을 사용한다. (그림 1(c))는 (그림 1(a))와 같은 XML 데이터에 대한 역색인의 예를 보여준다.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3745/kipstb.2008.15-b.4.355">doi:10.3745/kipstb.2008.15-b.4.355</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/a4ebuo2nxrgg3pwpmn232hn7hq">fatcat:a4ebuo2nxrgg3pwpmn232hn7hq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170829210046/http://ocean.kisti.re.kr/downfile/volume/kips/JBCRFU/2008/v15Bn4/JBCRFU_2008_v15Bn4_355.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/61/7a/617a79ac4ef550fdccc869417a120416a065f63c.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3745/kipstb.2008.15-b.4.355"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

A multi-keyword parallel ciphertext retrieval scheme based on inverted index under the robot distributed system

Jiyue Wang, Xi Zhang, Yonggang Zhu
<span title="2021-12-17">2021</span> <i title="European Alliance for Innovation n.o."> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/y4l63sf5djh4zowjsurq6fija4" style="color: black;">EAI Endorsed Transactions on Scalable Information Systems</a> </i> &nbsp;
In this paper, a multi-keyword parallel ciphertext retrieval system based on inverted index is proposed.  ...  Through the segmentation of ciphertext inverted index, the block retrieval of inverted index is realized, which overcomes the limitation of single machine resources and improves the retrieval efficiency  ...  For multi-keyword retrieval request, serial retrieval of inverted index structure seriously affects the efficiency of multi-keyword retrieval.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.4108/eai.17-12-2021.172438">doi:10.4108/eai.17-12-2021.172438</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/ixjgjgqu3fgzjkhf4hajn3w6m4">fatcat:ixjgjgqu3fgzjkhf4hajn3w6m4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20220420221353/https://eudl.eu/pdf/10.4108/eai.17-12-2021.172438" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/58/48/58484a265995584e74d73b5ebfcefc7480562f5f.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.4108/eai.17-12-2021.172438"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> Publisher / doi.org </button> </a>

Revisiting the Inverted Indices for Billion-Scale Approximate Nearest Neighbors [article]

Dmitry Baranchuk, Artem Babenko, Yury Malkov
<span title="2018-07-23">2018</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
The state-of-the-art retrieval systems for billion-scale databases are currently based on the inverted multi-index, the recently proposed generalization of the inverted index structure.  ...  We introduce a new retrieval system that is based on the inverted index and outperforms the multi-index by a large margin for the same memory consumption and construction complexity.  ...  The Inverted Multi-Index and Multi-D-ADC.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1802.02422v2">arXiv:1802.02422v2</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/va6nn374zjav5ikbwsvfd3vyva">fatcat:va6nn374zjav5ikbwsvfd3vyva</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200916061210/https://arxiv.org/pdf/1802.02422v2.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/07/c3/07c330899ced8c3750f6429683e41c037cf1997e.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1802.02422v2" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

Revisiting the Inverted Indices for Billion-Scale Approximate Nearest Neighbors [chapter]

Dmitry Baranchuk, Artem Babenko, Yury Malkov
<span title="">2018</span> <i title="Springer International Publishing"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
The state-of-the-art retrieval systems for billion-scale databases are currently based on the inverted multi-index, the recently proposed generalization of the inverted index structure.  ...  We introduce a new retrieval system that is based on the inverted index and outperforms the multi-index by a large margin for the same memory consumption and construction complexity.  ...  The Inverted Multi-Index and Multi-D-ADC.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-030-01258-8_13">doi:10.1007/978-3-030-01258-8_13</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/avjzao7bxverfekk27yhwtipum">fatcat:avjzao7bxverfekk27yhwtipum</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20190819050035/http://openaccess.thecvf.com:80/content_ECCV_2018/papers/Dmitry_Baranchuk_Revisiting_the_Inverted_ECCV_2018_paper.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/dd/2b/dd2bc63e5556af6b17695a2bea1af4b5e7c31264.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-030-01258-8_13"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

Multi-Index Image Retrieval Hash Algorithm Based on Multi-View Feature Coding

Rong Duan, Junshan Tan, Jiaohua Qin, Xuyu Xiang, Yun Tan, Neal N. Xiong
<span title="">2020</span> <i title="Computers, Materials and Continua (Tech Science Press)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/amujz7fcqna6do727z6ev3ueo4" style="color: black;">Computers Materials &amp; Continua</a> </i> &nbsp;
In order to reduce the matching error of hash code and ensure the retrieval accuracy, this algorithm uses inverted multi-index structure instead of single-index structure.  ...  This algorithm uses a quantitative hash method to generate binary sequences, and uses the hash code generated by the association features to construct database inverted index files, so as to reduce the  ...  Acknowledgement: The author would like to thank the equipment support of Central South University of Forestry & Technology and the support of National Natural Science Fund of China.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.32604/cmc.2020.012161">doi:10.32604/cmc.2020.012161</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/jkv4fcirzbf4jlbmusfq3knxay">fatcat:jkv4fcirzbf4jlbmusfq3knxay</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20220526045704/https://www.techscience.com/cmc/v65n3/40173/pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/d7/41/d741708ea3bab502b4d2f9d4c4d18a37f0c7d094.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.32604/cmc.2020.012161"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

GutenTag: A Multi-Term Caching Optimized Tag Query Processor for Key-Value Based NoSQL Storage Systems [article]

Christian von der Weth, Anwitaman Datta
<span title="2011-05-23">2011</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
To address this issue we propose our architecture based on an inverted index on top of a NoSQL system.  ...  Our results show that we can significantly reduces the bandwidth consumption for processing queries, with an acceptable, marginal increase in the load of the gateway nodes.  ...  Similar to existing approaches, we store multi-term keys in the inverted index.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1105.4452v1">arXiv:1105.4452v1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/lssbrlc4pvgxpbun2hh75st5w4">fatcat:lssbrlc4pvgxpbun2hh75st5w4</a> </span>
<a target="_blank" rel="noopener" href="https://archive.org/download/arxiv-1105.4452/1105.4452.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> File Archive [PDF] </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1105.4452v1" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

Hybrid Multi-Carrier PWM Technique Based on Carrier Reconstruction for Cascaded H-bridge Inverter

First A. Manyuan Ye, Second B. Le Chen, Third C. Lixuan Kang, Song Li, JunFei Zhang, Han Wu
<span title="">2019</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/q7qi7j4ckfac7ehf3mjbso4hne" style="color: black;">IEEE Access</a> </i> &nbsp;
INDEX TERMS Hybrid multi-carrier PWM, cascaded H-bridge inverter, power balance, harmonics analysis. 53152 2169-3536  ...  When CHB multilevel inverter adopts Hybrid Multi-carrier PWM technique, as with CPS-PWM technique, the output power balance between the cascaded H-bridge cells is achieved naturally; at the same time,  ...  u AB than CPS-PWM technique at low amplitude modulation index when this modulation technique is applied to CHB Sevenlevel inverters, but at high modulation index, the THD of u AB is the same as the CPS-PWM  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/access.2019.2912216">doi:10.1109/access.2019.2912216</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/svqhngxstbalxlp7nv32xwjyqm">fatcat:svqhngxstbalxlp7nv32xwjyqm</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20210429160555/https://ieeexplore.ieee.org/ielx7/6287639/8600701/08694868.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/5e/2d/5e2dbd74613535c7ad3381bd6034515eedaa274e.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/access.2019.2912216"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> ieee.com </button> </a>

Selective K-means Tree Search

Tuan Anh Nguyen, Yusuke Matsui, Toshihiko Yamasaki, Kiyoharu Aizawa
<span title="">2015</span> <i title="ACM Press"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/lahlxihmo5fhzpexw7rundu24u" style="color: black;">Proceedings of the 23rd ACM international conference on Multimedia - MM &#39;15</a> </i> &nbsp;
In this study, we address the problem of reducing the time required to build an inverted index without degrading the search accuracy and speed.  ...  could be built six times faster, while obtaining almost the same recall and search speed as the state-of-the-art inverted indexing methods.  ...  Our proposed inverted index SKT-ADC obtained almost the same recall and search speed, and the inverted file was built six times faster compared with the best conventional inverted index, i.e., Multi-D-ADC  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/2733373.2806353">doi:10.1145/2733373.2806353</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/mm/NguyenMYA15.html">dblp:conf/mm/NguyenMYA15</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/zzudnyca3nejhmjbph34lz7qea">fatcat:zzudnyca3nejhmjbph34lz7qea</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20190218134601/https://static.aminer.org/pdf/20170130/pdfs/mm/vq1dao2b5rzs74hlpj6co9jwethzmkat.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/c9/69/c9693eca47ad9722c0998020573abe1da99b1687.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/2733373.2806353"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> acm.org </button> </a>

Performance Investigation of Multi-phase VSI with Simple PWM Switching Techniques

G. Renukadevi
<span title="">2013</span> <i title="International Digital Organization for Scientific Information (IDOSI)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/pcffws5cpnbi5npocbyumjhaci" style="color: black;">International Journal of Engineering</a> </i> &nbsp;
This paper presents the performance of multi-phase voltage source inverter (VSI) with simple PWM switching techniques, namely the harmonic injection and offset injection method.  ...  The results of the simulation are presented for different modulation indices and a comparison in terms of fundamental voltage and THD identifies the better scheme suitable for multi-phase inverter fed  ...  Multi-phase motors require multi-phase voltage source inverter (VSI) for their input supply. An inverter topology uses two switches connected in series as one inverter pole.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5829/idosi.ije.2013.26.03c.08">doi:10.5829/idosi.ije.2013.26.03c.08</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/tohbmxp3srf7tisv3u5faioic4">fatcat:tohbmxp3srf7tisv3u5faioic4</a> </span>
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Multi-level Motor Drives for Torque Ripple Suppression Taking Control Sensitivity into Account

Shuhei Shimmyo, Katsutoku Takeuchi, Norio Takahashi, Makoto Matsushita, Kouhei Ohnishi
<span title="">2016</span> <i title="Institute of Electrical Engineers of Japan (IEE Japan)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/4xqichjja5dahgk6bmmzz7shzq" style="color: black;">IEEJ Journal of Industry Applications</a> </i> &nbsp;
In this paper, the multi-level inverters achieve precise motion control, and a theoretical distortion index for multi-level motor drives that takes the control sensitivity into account is proposed.  ...  This paper discusses the suppression of torque ripple using multi-level inverters in motor drives.  ...  However, the distortion index in that paper is not theoretically motivated, and the distortion index for multi-level inverters is not discussed.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1541/ieejjia.5.69">doi:10.1541/ieejjia.5.69</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/3vzqbltmcfdp5eiuultljmmbim">fatcat:3vzqbltmcfdp5eiuultljmmbim</a> </span>
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Contribution to Improving the DFIG Control Using a Multi-Level Inverter

Imane El Karaoui, Mohammed Maaroufi, Hamid Chaikhy
<span title="2019-05-01">2019</span> <i title="Zenodo"> Zenodo </i> &nbsp;
This paper presents a multi-level inverter whose objective is to reduce the THD and the dimensions of the output filter.  ...  This work proposes a three-level NPC-type inverter, the results simulation are presented demonstrating the efficiency of the proposed inverter.  ...  Three Levels NPC Inverter Open Science Index, Energy and Power Engineering Vol:13, No:6, 2019 waset.org/Publication/10010437 International Scholarly and Scientific Research & Innovation 13(6) 2019 ISNI  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5281/zenodo.3298932">doi:10.5281/zenodo.3298932</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/rfgi3ygbybhtbajduidw522rsa">fatcat:rfgi3ygbybhtbajduidw522rsa</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200216061609/https://zenodo.org/record/3298932/files/10010437.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/f4/af/f4af4f89d896540fa757618cf470e8bf84a862da.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5281/zenodo.3298932"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> zenodo.org </button> </a>

Shortlist Selection with Residual-Aware Distance Estimator for K-Nearest Neighbor Search

Jae-Pil Heo, Zhe Lin, Xiaohui Shen, Jonathan Brandt, Sung-Eui Yoon
<span title="">2016</span> <i title="IEEE"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/ilwxppn4d5hizekyd3ndvy2mii" style="color: black;">2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)</a> </i> &nbsp;
We have tested the proposed method with the inverted index and multi-index on a diverse set of benchmarks including up to one billion data points with varying dimensions, and found that our method robustly  ...  Furthermore, we perform the residualaware distance estimation with little additional memory and computational cost through simple pre-computation methods for inverted index and multi-index schemes.  ...  Yoon is a corresponding author of the paper. This work was supported by MSIP/IITP [R0126- ], (MSIP) (No. 2013-067321, R0101-16-0176).  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/cvpr.2016.221">doi:10.1109/cvpr.2016.221</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/cvpr/Heo0SBY16.html">dblp:conf/cvpr/Heo0SBY16</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/jpbb3u6lyvgrbafdda7vuwobxe">fatcat:jpbb3u6lyvgrbafdda7vuwobxe</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20161022130751/http://sglab.kaist.ac.kr:80/paper/CVPR16_JP.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/67/8a/678ad00c43da538cbb6f12755d184123423a346f.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/cvpr.2016.221"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>
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