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Reduced-Rank Local Distance Metric Learning [chapter]

Yinjie Huang, Cong Li, Michael Georgiopoulos, Georgios C. Anagnostopoulos
2013 Lecture Notes in Computer Science  
We propose a new method for local metric learning based on a conical combination of Mahalanobis metrics and pair-wise similarities between the data.  ...  Its formulation allows for controlling the rank of the metrics' weight matrices. We also offer a convergent algorithm for training the associated model.  ...  Conclusions In this paper, we proposed a new local metric learning model, namely Reduced-Rank Local Metric Learning (R 2 LML).  ... 
doi:10.1007/978-3-642-40994-3_15 fatcat:unfqruyayjaffigi5mapwmadoq

Locally Linear Embedding based on Rank-order Distance

Xili Sun, Yonggang Lu
2016 Proceedings of the 5th International Conference on Pattern Recognition Applications and Methods  
In this paper, the Rank-order distance measure is used to substitute the traditional Euclidean distance measure in order to find better nearest neighbor candidates for preserving local configurations of  ...  The Rank-order distance between the data points is calculated using their neighbors' ranking orders, and is shown to be able to improve the clustering of high dimensional data.  ...  It is also shown that the Rank-order distance can find better neighbors than the Euclidean distance and the geodesic distance for representing local configurations of the manifolds.  ... 
doi:10.5220/0005658601620169 dblp:conf/icpram/SunL16 fatcat:tlptxe7nwfcurhkrrzt6dmus4m

Reduced-Rank Local Distance Metric Learning for k-NN Classification [article]

YInjie Huang and Cong Li and Michael Georgiopoulos and Georgios C. Anagnostopoulos
2019 arXiv   pre-print
We propose a new method for local distance metric learning based on sample similarity as side information.  ...  of samples, whose distances are measured.  ...  Reduced-Rank Local Distance Metric Learning for k-NN Classification Yinjie Huang Cong Li Michael Georgiopoulos Georgios C.  ... 
arXiv:1902.08313v1 fatcat:mrdyh3yqofhkxpmluothehsv7e

Handling shape variations in geographical distance rankings for local news recommendation

Jon Espen Ingvaldsen, Dirk Ahlers
2015 Proceedings of the 9th Workshop on Geographic Information Retrieval - GIR '15  
In this paper, we will discuss ways to improve distance ranking by taking geographical entity sizes, shapes, and footprints into account when handling news items that are ranked for specific users.  ...  Geographical proximity is an important ranking feature in many context aware recommendation systems.  ...  We propose to handle shape and scale variations in geographical distance rankings for local news recommendation by combining two decay functions.  ... 
doi:10.1145/2837689.2837702 dblp:conf/gir/IngvaldsenA15 fatcat:rmvseujpnrgbzmhcififb7l22a

Community spatial distance and educational determinants of how local people appreciate conservation benefits around Tarangire and Saadani National Parks, Tanzania

Franco P. Mbise, Peter S. Ranke, Eivin Røskaft
2021 Global Ecology and Conservation  
Results from these questionnaires showed that the local people's appreciation of benefits was negatively related to increasing distance from the parks boundaries.  ...  The understanding of how educational and spatial factors influence appreciation of conservation benefits to locals living adjacent to protected areas is a very important aspect in conservation initiatives  ...  Ranke and E. Røskaft Global Ecology and Conservation 28 (2021) e01641  ... 
doi:10.1016/j.gecco.2021.e01641 fatcat:xezajy4yprf2hmr5z4s2uxoxmu

On the Optimality of Gabidulin-Based LRCs as Codes with Multiple Local Erasure Correction

Geonu KIM, Jungwoo LEE
2019 IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences  
Its distance optimality has been further shown to cover the case of multiple (r, δ)-locality, where the (r, δ)-locality constraints are different among different symbols.  ...  In this letter, we show that Gabidulin-based LRCs are still distance optimal even without the ordered (r, δ) condition. key words: locally repairable codes, multiple locality, local erasure correction,  ...  Theorem 1 : 1 Gabidulin-based (r, δ)-LRCs are distance optimal LRCs with multiple (r, δ)-locality.  ... 
doi:10.1587/transfun.e102.a.1326 fatcat:6kmnymxgazbn3emoww4bu5jxwm

Locality based discriminative measure for multiple-shot person re-identification

Wei Li, Yang Wu, Masayuki Mukunoki, Michihiko Minoh
2013 2013 10th IEEE International Conference on Advanced Video and Signal Based Surveillance  
This paper proposes a novel set based matching model called "Locality Based Discriminative Measure (LBDM)", in which the discriminative potentiality of a new set-to-set distance is exploited by using the  ...  learned local metric field.  ...  Locality Based Discriminative Measure Set-to-set Distance Crafting To correctly match the sets, an effective set-to-set distance is important.  ... 
doi:10.1109/avss.2013.6636658 dblp:conf/avss/LiWMM13 fatcat:os475snuxjfprn2ukq2jds44bi

Locally Repairable Codes with Unequal Local Erasure Correction

Geonu Kim, Jungwoo Lee
2018 IEEE Transactions on Information Theory  
In this paper, we study the tradeoff between locality and minimum distance of LRCs with local codes that have arbitrary distance requirements.  ...  Locally repairable codes (LRCs) tackle this issue by reducing the number of nodes participating in the repair process (locality), at the cost of reduced minimum distance.  ...  It is easy to see that the rank distance is upper bounded by the Hamming distance, i.e., d R (u, v) ≤ d H (u, v).  ... 
doi:10.1109/tit.2018.2834942 fatcat:dlue6x3ibjhhhj343g4lqlf4jq

Codes with Unequal Locality [article]

Swanand Kadhe, Alex Sprintson
2016 arXiv   pre-print
We show that the construction based on rank-metric codes by Silberstein et al. can be adapted to obtain codes with unequal all symbol locality that achieve the minimum distance bound.  ...  For codes with "unequal information locality", we compute a tight upper bound on the minimum distance as a function of number of information symbols of each locality.  ...  discussions, especially on locality requirement.  ... 
arXiv:1601.06153v1 fatcat:5g2xcfdupncpxpz4xxi6rab6um

Ranking-Based Statistical Localization for Wireless Sensor Networks

Yu Zhang, Lin Zhang, Xiuming Shan
2008 2008 IEEE Wireless Communications and Networking Conference  
This paper studies Ranking-Based localization method, which, as a special case of common Range-Based localization methods, statistically estimates node positions using the ranking-order constraints rather  ...  Ranking-Based approach turns out to be more robust to measurement insufficiency and more immune to measurement noise.  ...  As this is a pilot work in the field of Ranking-Based localization, a lot questions still remain open.  ... 
doi:10.1109/wcnc.2008.450 dblp:conf/wcnc/ZhangZS08 fatcat:kp54xfu2cnfbzkq2zjnrdob57y

Codes with Locality in the Rank and Subspace Metrics [article]

Swanand Kadhe, Salim El Rouayheb, Iwan Duursma, Alex Sprintson
2019 arXiv   pre-print
We also derive a Singleton-like upper bound on the minimum rank distance of (linear) codes with 'rank-locality' constraints.  ...  The construction builds upon Tamo and Barg's method for constructing locally repairable codes with optimal minimum Hamming distance.  ...  Therefore, an upper bound on the minimum Hamming distance of an (n, k, d ′ )-LRC C ′ with (r, δ) locality is also an upper bound on the rank distance of an (m × n, k, d) rank-metric code with (r, δ) rank-locality  ... 
arXiv:1707.05944v3 fatcat:bkrttyc5grfrxj6m6mmxvbjuqm

Page 334 of Ethnology Vol. 14, Issue 4 [page]

1975 Ethnology  
Rank of piopulation in the 1820s is the best predictor local group rank, as it is able to expbin 84 per cent of the variation in local group rank.  ...  Since local group potlatch rank is an ordinal variable, local groups have been ranked on the six independent variables also (Table 2).  ... 

A Human Face Image Searching System Using Sketch

C. H. Man, Pong Chi Yuen
2002 IAPR International Workshop on Machine Vision Applications  
The local distance measurement compares facial primitives individually while the global distance measurement compares the geometric distances among feature points on the face.  ...  The output is the mug shot ranking for the suspect database. In the system, local and global feature measurements between sketch and mug shot faces are adopted.  ...  Mug shots are ranked according to the combined distance. The local feature comparison measures the dissimilarity between primitives.  ... 
dblp:conf/mva/ManY02 fatcat:n4vggjuwijhfdlsouicuuen72u

Codes with Unequal Disjoint Local Erasure Correction Constraints [article]

Geonu Kim, Jungwoo Lee
2017 arXiv   pre-print
Recently, locally repairable codes (LRCs) with local erasure correction constraints that are unequal and disjoint have been proposed.  ...  Minimum Distance The minimum distance of linear codes is well known to be characterized by the following lemma [5, Lem. A.1] , which is the basis of our minimum distance bounds.  ...  The minimum Hamming distance of UD-(r, δ)-LRCs is upper bounded by d ≤ n − k + 1 − σ−1 j=1 (n j − rank G (N j )) − k − σ−1 j=1 rank G (N j ) r σ − 1 (δ σ − 1), where σ = min{j ∈ [s] | j j ′ =1 rank G (  ... 
arXiv:1704.02079v1 fatcat:wz6b2eody5h6zinbqi76rsr3mi

AlignedReID: Surpassing Human-Level Performance in Person Re-Identification [article]

Xuan Zhang, Hao Luo, Xing Fan, Weilai Xiang, Yixiao Sun, Qiqi Xiao, Wei Jiang, Chi Zhang, Jian Sun
2018 arXiv   pre-print
Our method achieves rank-1 accuracy of 94.4% on Market1501 and 97.8% on CUHK03, outperforming state-of-the-art methods by a large margin.  ...  Global feature learning benefits greatly from local feature learning, which performs an alignment/matching by calculating the shortest path between two sets of local features, without requiring extra supervision  ...  We find that if we apply the local distance together with the global distance in the inference stage, rank-1 accuracy further improves approximately 0.3% ∼ 0.5%.  ... 
arXiv:1711.08184v2 fatcat:d22zbqrbrvhcdnbaa5w47ylza4
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