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DangKiller: Eliminating Dangling Pointers Efficiently via Implicit Identifier [article]

Daliang Xu and Dongwei Chen and Chun Yang and KangSun and Xu Cheng and Dong Tong
2020 arXiv   pre-print
Associating the unique ID with metadata for memory objects, obtaining and managing the pointer graph metadata can be efficiently.  ...  Coupled with the Address Tagging architecture on an ARM64 system, our experiments show that the DangKiller can eliminate use-after-free vulnerabilities at only 11% and 3% runtime overheads for the SPEC  ...  The pointer tracking module tracks the locations of dangling pointer candidates;and the delayed free module frees the object when it has no references.  ... 
arXiv:2003.00175v1 fatcat:urguvhh6xbfodeewh7dayimo7a

On Fast Trackers that are Robust to Partial Occlusions

Lu Zhang, Hamdi Dibeklioglu, Laurens van der Maaten
2014 2014 IEEE Conference on Computer Vision and Pattern Recognition Workshops  
Model-free tracking aims identify the location of particular objects or object parts in each frame of a video based on a single positive example.  ...  Together with other recent advances in object detection and tracking, we believe these developments will ultimately contribute to solving the long-term tracking problem.  ...  We propose a new tracking algorithm, called structure-preserving object tracking (SPOT), that uses a part-based appearance model based on pictorial structures.  ... 
doi:10.1109/cvprw.2014.111 dblp:conf/cvpr/ZhangDM14a fatcat:mbzl2o2szraqbkloevulk6hree

Preserving Structure in Model-Free Tracking

Lu Zhang, Laurens van der Maaten
2014 IEEE Transactions on Pattern Analysis and Machine Intelligence  
Model-free trackers can track arbitrary objects based on a single (bounding-box) annotation of the object.  ...  The experimental evaluation of our structure-preserving object tracker (SPOT) reveals substantial performance improvements in multi-object tracking.  ...  The authors thank two anonymous reviewers for helpful comments on earlier versions of this paper.  ... 
doi:10.1109/tpami.2013.221 pmid:26353198 fatcat:e7e463jp4japdosyh7blonrcae

Improving Object Tracking by Adapting Detectors

Lu Zhang, Laurens van der Maaten
2014 2014 22nd International Conference on Pattern Recognition  
We demonstrate the effectiveness of the approach in a state-of-the-art object detector based on deformable template models, the parameters of which are adapted online using an online structured SVM.  ...  A major limitation of such an approach is that a single, generic detector is used to track specific objects; the additional information on the visual appearance of the particular object under consideration  ...  Many prior studies in model-free tracking focus on exploring different feature representations for the target object, including feature representations based on points [27] , [28] , [29] , contours  ... 
doi:10.1109/icpr.2014.219 dblp:conf/icpr/ZhangM14 fatcat:vadpha6wcje2bnwpzhfmpoz2ty

Attributed Graphs for Tracking Multiple Objects in Structured Sports Videos

Henrique Morimitsu, Roberto M. Cesar, Isabelle Bloch
2015 2015 IEEE International Conference on Computer Vision Workshop (ICCVW)  
In this paper we propose a novel approach for tracking multiple object in structured sports videos using graphs.  ...  The objects are tracked by combining particle filter and frame description with Attributed Relational Graphs.  ...  They propose a model-free tracking approach that includes the structural relations between objects into the data association function to perform tracking by detection.  ... 
doi:10.1109/iccvw.2015.102 dblp:conf/iccvw/MorimitsuCB15 fatcat:ewts6i7rkvdefl5qalxkquyioy

Pose-Configurable Generic Tracking of Elongated Objects

Daniel Wesierski, Patrick Horain
2013 2013 IEEE International Conference on Computer Vision  
While the trend in tracking is to design complex, structure-free algorithms that update object appearance online, we show that our tracker, with the novel but remarkably simple, structured organization  ...  They build object appearance on-line but strive to be robust against  ...  On the other hand, the prominent pictorial structures [10, 11] have been used extensively in object tracking by approximating complete graphs with star graphs [3, 31] and with other tree graph extensions  ... 
doi:10.1109/iccv.2013.363 dblp:conf/iccv/WesierskiH13 fatcat:6ns4mp7s7vglhbomrgcvccf62u

Multiple Object Tracking through Background Learning

Deependra Sharma, Zainul Abdin Jaffery
2023 Computer systems science and engineering  
In the present work an algorithm is proposed for the multiple object tracking through background learning. The learning framework is based on graph embedding approach for localizing multiple objects.  ...  The graph utilizes the inherent capabilities of depth modelling that assist in prior to track occlusion avoidance among multiple objects.  ...  In this paper, we have combined background information with 3D mapping of foregrounds and proposed an occlusion-free model for multiple objects tracking in a complex scenario.  ... 
doi:10.32604/csse.2023.023728 fatcat:sxgounjeqnd27n7fqel3e34lu4

Multi-Object Tracking Through Clutter Using Graph Cuts

James Malcolm, Yogesh Rathi, Allen Tannenbaum
2007 2007 IEEE 11th International Conference on Computer Vision  
We employ a filter which predicts the location of the object. The distance penalty is then centered at this location and adaptively scaled based on prediction confidence.  ...  This paper proposes a novel method to constrain the standard graph cut technique for tracking objects in a region of interest.  ...  To overcome this problem, we predict the location of the object in each frame based on its previous location and center the distance penalty at this predicted location.  ... 
doi:10.1109/iccv.2007.4409178 dblp:conf/iccv/MalcolmRT07 fatcat:twoenkanxndtzi5xtzoccemkze

Tracking Through Clutter Using Graph Cuts

J. Malcolm, Y. Rathi, A. Tannenbaum
2007 Procedings of the British Machine Vision Conference 2007  
We employ a filter which predicts the location of the object. The distance penalty is then centered at this location and adaptively scaled based on prediction confidence.  ...  This paper proposes a novel method to constrain the standard graph cut technique for tracking objects in a region of interest.  ...  To overcome this problem, we predict the location of the object in each frame based on its previous location and center the distance penalty at this predicted location.  ... 
doi:10.5244/c.21.78 dblp:conf/bmvc/MalcolmRT07 fatcat:ddp6j5b6xzew7lapr2niyxeusa

Analysis of Commutativity with State-Chart Graph Representation of Concurrent Programs [article]

Kishore Debnath, Christina Peterson, Damian Dechev
2019 arXiv   pre-print
In our approach, we generate state-chart graphs by tracking data on the atomic instructions invoked on the concurrent object during model checking and represent the atomic instructions as states in a state-transition  ...  A set of operations are commutative if changing the order of their execution on an object does not affect the abstract state of the object and returns the same response.  ...  Commuter and our tool are both based on conditional states, but Commuter does not track object-level model checking data.  ... 
arXiv:1904.04291v1 fatcat:xw7pceu5jbeovka4qs3bul7674

Visualizing massively multithreaded applications with ThreadScope

Kyle B. Wheeler, Douglas Thain
2010 Concurrency and Computation  
ThreadScope extracts the machine-independent program structure from execution trace data from a variety of tracing tools and displays it as a graph of dependent execution blocks and memory objects, enabling  ...  Each execution block is given a unique identifying number, as are objects. When the graph is drawn, the first execution block is colored gray to identify it.  ...  For example, malloc-related events' (MALLOC, FREE, and REALLOC) operations were added late in the development process to enhance memory object tracking.  ... 
doi:10.1002/cpe.1469 fatcat:455imdfpybdh7csxm5qr6ae3yy

Semantic event representation and recognition using syntactic attribute graph grammar

Liang Lin, Haifeng Gong, Li Li, Liang Wang
2009 Pattern Recognition Letters  
These event primitives are learned on a object-trajectory table that describes mobile object attributes (location, velocity, and visibility) in a video sequence.  ...  With this representation, one observed event can be parsed into an "event parse graph", and all possible variability of one event can be modeled into an "event And-Or graph", in a syntactic way.  ...  Attribute graph grammar An attribute graph grammar is augmented from the stochastic context free grammar (SCFG) by incorporating attributes and constraints on the nodes.  ... 
doi:10.1016/j.patrec.2008.02.023 fatcat:g6ptjmczhffrbkuaodgicj6voy

Finding low-utility data structures

Guoqing Xu, Nick Mitchell, Matthew Arnold, Atanas Rountev, Edith Schonberg, Gary Sevitsky
2010 Proceedings of the 2010 ACM SIGPLAN conference on Programming language design and implementation - PLDI '10  
The analysis then identifies suspicious structures based on imbalances of its incremental costs and benefits.  ...  We demonstrate two client analyses: one that finds objects that are expensive to construct but are not necessary for the forward execution, and second that pinpoints ultimately-dead values.  ...  The research from [26] proposes a false-positive-free technique that identifies stale objects based on data sampling.  ... 
doi:10.1145/1806596.1806617 dblp:conf/pldi/XuMARSS10 fatcat:w3p5j3cs2rep3egw57kasbnfta

Finding low-utility data structures

Guoqing Xu, Nick Mitchell, Matthew Arnold, Atanas Rountev, Edith Schonberg, Gary Sevitsky
2010 SIGPLAN notices  
The analysis then identifies suspicious structures based on imbalances of its incremental costs and benefits.  ...  We demonstrate two client analyses: one that finds objects that are expensive to construct but are not necessary for the forward execution, and second that pinpoints ultimately-dead values.  ...  The research from [26] proposes a false-positive-free technique that identifies stale objects based on data sampling.  ... 
doi:10.1145/1809028.1806617 fatcat:er2q5y4cbbfifhfrtchnnuckmq

A Method for Associating Patterns of Motion in Events from Video: A Case Study

Nikolaos Bourbakis, George Bebis
2006 Proceedings - International Conference on Tools with Artificial Intelligence, TAI  
time in different locations.  ...  This problem becomes more difficult in complex environments with many unexpected behavioral patterns from objects, or cells, or individuals or small group of people acting under certain plans at the same  ...  Note here that the centroids are located on the skeleton of each human standing.  ... 
doi:10.1109/ictai.2006.16 dblp:conf/ictai/BourbakisB06 fatcat:4hqu7zvownfubik5hfumqyebee
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