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Browsing Technical Reports by Title

Browsing Technical Reports by Title

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  • ACCORD : an analytical cache contention model using reuse distances for modern multiprocessors 
    Hemani, Rakhi; Banerjee, Subhasis; Guha, Apala (2014-09-15)
    Simultaneous execution of multiple threads on multicores is necessary for good resource utilization. However, such utilization calls for accurate models to predict the impact on performance due to contention of shared ...
  • Analyzing mutable checkpointing via invariants 
    Aggarwal, Deepanker; Kiehn, Astrid (2015-09-10)
    The well-known coordinated snapshot algorithm of mutable checkpointing [7{9] is studied. We equip it with a concise formal model and analyze its operational behavior via an invariant characterizing the snapshot computation. ...
  • Android phone based appraisal of app behavior on cell networks 
    Gupta, Shaifali; Garg, Rashi; Jain, Nikita; Naik, Vinayak; Kaul, Sanjit Krishnan (2013-10-31)
    The rapid adoption of smartphones has engendered a large ecosystem of mobile data applications. In fact, a large part of mobile tra c is now data and not voice. Many of these applications, for example VoIP clients, stay ...
  • Attacking the tav-128 hash function 
    Kumar, Ashish; Sanadhya, Somitra Kumar (2012-03-14)
    Many RFID protocols use cryptographic hash functions for their security. The resource constrained nature of RFID systems forces the use of light weight cryptographic algorithms. Tav-128 is one such light weight hash ...
  • Automated testing of interactive voice response applications 
    Asthana, Siddhartha; Singh, Pushpendra (2014-04-28)
    Dialing a telephone number of an organization and coming across an automated system attending the call, instead of a human, has become common. These automated applications are known as Interactive Voice Response (IVR) ...
  • Biclique cryptanalysis of full round AES with reduced data complexity 
    Chang, Donghoon; Ghosh, Mohona; Sanadhya, Somitra Kumar (2013-05-31)
    Biclique cryptanalysis was proposed by Bogdanov et al. in Asiacrypt 2011 as a new tool for cryptanalysis of block ciphers. A major hurdle in carrying out biclique cryptanalysis is that it has a very high query complexity ...
  • Biclique cryptanalysis of full round AES-128 based hashing modes 
    Chang, Donghoon; Ghosh, Mohona; Sanadhya, Somitra Kumar (2015-03-23)
    In this work, we revisit the security analysis of AES-128 instantiated hash modes. We use biclique cryptanalysis technique as our basis for the attack. The traditional biclique approach used for key recovery in AES (and ...
  • Biometric quality : from assessment to multibiometrics 
    Bharadwaj, Samarth; Vatsa, Mayank; Singh, Richa (2015-01-27)
    Quality is an attribute or a property of an item that quantitatively measures specific aspect or content. The definition and correct method of measurement of quality of a biometric modality that is usually represented by ...
  • BluePark : tracking parking and un-parking events in indoor parking lot 
    Soubam, Sonia; Naik, Vinayak; Banerjee, Dipyaman; Chakraborty, Dipanjan (2015-10-26)
    Finding a parking spot in a busy indoor parking lot is a daunting task. Retracing a parked vehicle can be equally frustrating. We present BluePark, a collaborative sensing mechanism using smartphone sensors to solve these ...
  • Cairn : identifying network locations for large scale censorship by resource-constrained adversaries 
    Agarwal, Anshika; Gosain, Devashish; Acharya, Hrishikesh Bhatt; Chakravarty, Sambuddho (2016-09-23)
    Censorship of the Internet by government is a hotly contested topic. Some nations lean more toward free speech; others are much more conservative. How feasible is it for a government to censor the Internet? What mechanisms ...
  • Can humans and automatic algorithms recognize look-alike faces? 
    Lamba, Hemank; Sarkar, Ankit; Vatsa, Mayank; Singh, Richa (2012-03-26)
    One of the major challenges of face recognition is to de- sign a feature extractor that reduces the intra-class vari- ations and increases the inter-class variations. The fea- ture extraction algorithm has to be robust ...
  • ChaMAILeon simplified email sharing like never before 
    Dewan, Prateek; Gupta, Mayank; Kumaraguru, Ponnurangam (2012-03-14)
    While passwords, by de nition, are meant to be secret, recent trends in the Internet usage have witnessed an increasing number of people sharing their email passwords for both personal and professional purposes. As ...
  • Characterizing mobility patterns of people in developing countries using their mobile phone data 
    Yadav, Kuldeep; Kumar, Amit; Bharti, Aparna; Naik, Vinayak (2013-10-10)
    Location data collected from mobile phone users provide an ideal platform to generate human mobility patterns. These patterns give us insights into how people travel in their dayto- day lives.With availability of cellular ...
  • Consumer privacy and targeted pricing with stochastic valuations 
    Mishra, Shreemoy (2014-07-16)
    I study the market for consumer information. Firms cannot commit to privacy, so buyers anticipate disclosure of purchase history for targeted pricing. In the literature, strategic rejections of informative o ers make ...
  • Context-aware IVR : challenges and opportunities 
    Asthana, Siddhartha; Singh, Pushpendra; Singh, Amarjeet; Naik, Vinayak (2012-03-26)
    Voice based telecommunication services are emerging as most appropriate medium for information dissemination in developing regions, as they overcome prevalent low literacy rate and are more reachable than any other ...
  • Covariates of face recognition 
    Bhatt, Himanshu S; Singh, Richa; Vatsa, Mayank (2015-01-27)
    Face recognition has found several applications ranging from cross border security, surveillance, access control, multimedia to forensics. Face recognition under variations due to pose, illumination, and expression has ...
  • Detecting activities at metro stations using smartphone sensors 
    Mongia, Aanchal; Gunturi, Venkata M. Viswanath; Naik, Vinayak (IIIT-Delhi, 2017-11-29)
    Our paper aims to build a classification-model which delineates the typical motion-related activities performed at a metro station using smart phone sensors. We focus on typical movements, such as climbing the stairs or ...
  • Face anti-spoofing via motion magnification and multifeature videolet aggregation 
    Bharadwaj, Samarth; Dhamecha, Tejas I; Vatsa, Mayank; Singh, Richa (2014-06-03)
    For robust face biometrics, a reliable anti-spoofing approach has become an essential pre-requisite against attacks. While spoofing attacks are possible with any biometric modality, face spoofing attacks are relatively ...
  • Geographical bias in GitHub : perceptions and reality 
    Rastogi, Ayushi; Nagappan, Nachiappan; Gousios, Georgios (2016-01-11)
    Open source development has often been considered to be a level playing field for all developers. But there has been little work to investigate if bias plays any role in getting contributions accepted. The work presented ...
  • Incremental subclass discriminant analysis : a case study in face recognition 
    Lamba, Hemank; Dhamecha, Tejas I; Vatsa, Mayank; Singh, Richa (2012-03-26)
    Subclass discriminant analysis is found to be applicable under various scenarios. However, it is computationally very expensive to update the between-class and within-class scatter matrices. This research presents an ...

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