Concepts in Differential Privacy

Concepts in Differential Privacy Abstract Stored data in search log is insecure process to the search engine. Search log contains extremely sensitive data, as evidenced by the AOL incident. To Store information in the search log is identify the behavior of user. To maintain this sensitive data is risky process, because some security methods containing the drawbacks. Search engine companies provide security for search logs, in some cases intruder identifies the stored data then loss occurred. This paper provides security methods for the search data against the intruder. To store the data in the search log based on the keywords, clicks, queries etc. Anonymization is the method provides security for data but it loss the granularity. And another method is â‚ ¬-differential privacy provide utility for the problem. (â‚ ¬,∂)-probabilistic privacy used to calculate the noise distribution. ZEALOUS algorithm propose in this paper provide effective results with (â‚ ¬1,∂1)-indistingushability. This paper concludes w ith the comparable utility with the k-anonymity, â‚ ¬-differential privacy. To this algorithm produce the effective result. Keywords: Security, Privacy, Data Anonymity, Information Protection, Differential Privacy, Histogram INTRODUCTION To publish the search query logs are useful to know the behavior of a user. To interact users into search engine information stored in the form of search log. This stores the information based on the following schema {User_id, Query, Time, Clicks} Here User_id identifies the particular user. Query identifies the group of keywords to be searched by the user in search engine. User search the keyword in search engine like â€Å"Java† then relevant information related to Java will be occurred in the browser. User clicks on the particular link it will store in the search log as number counts. And also store the time of the click on the user. Single user consists of a user history or search history by the search entities. User history partitioned into sessions by the similar queries. Queries can be grouped into form a query pair, this used for the preparation of data in the search log. Query pairs can be divided into sessions and each session contains the subsequent query. Generally keywords can be divided into two ways. Those are 1. Frequent 2. Infrequent 1. Frequent Keyword: Previous methods only introduce these keywords. Because of this keywords are produce easily with search logs compare to the infrequent. Users search the keyword in the search engine based on that criteria identify the frequent keywords. 2. Infrequent Keywords: Proposed method for this paper is to publish search log with infrequent keywords. To publish this keyword is to loss the utility and produce less results compare to frequent keywords. In the previous method k-anonymity the main aim of this method is to define effective anonymization models for query log data along with techniques to achieve such anonymiation. Publishing of user query search logs has become a sensitive issue. To develop anonymization methods to publish the searc log data without breaching privacy or reduce utility. Drawback of this method is to identify the data to the external linked attributes. Introduce Quasi-identifier to the identification of an individual by combining to the external data. Following is an example data set User Registration Search_log Fig 1: Anonymization of the data In the above tables explains that the user registration contains all the user details of the user history. Search_log table contains the data of the user searched data. These two tables are externally linked to each other with this data loss occurred. Putting these searches together may easily reveal the identity of the user. The idea behind this k-anonymity is provide guarantee to each and every individual and hidden the group of size k with respect to the quasi-identifiers. To produce the search logs with â‚ ¬-differential privacy provide good utility, but problem with the search logs is noise added to the search logs. Several methods are used to produce random noise in the differential privacy. According to this paper classify them as two categories Data-independent noise Data-dependent noise Adding noise to the data this data-independent noise is most basic one. Laplace noise addition belongs to this category. Compare to the data-dependent noise is most complex, but usually they lead to less distortion being introduced. But this paper focus on the data-independent noise, which is most frequently uses in data sets. To produce effective results with â‚ ¬-differential privacy add laplace distribution to the result. Zealous algorithm consists a two phase framework for the purpose of identify the frequent items in the search log. And set two threshold values to publish the search logs with more privacy. Search engine companies apply this algorithm to generate statics with (â‚ ¬,∂)-probabilistic differentially private to retaining good utility for the applications. Beyond publishing search logs this paper believe that findings are of interest when publishing frequent item sets. This algorithm protects privacy against much stronger attackers than those compare the previous methods. RELATED WORK Search Log Anonymization In the previous incident occur in the AOL search log, it reveals the data of a user. Adar propose a method it appears at least t times before it can be decoded, which may potentially remove too many unused queries. And another method tokenize each query and hashes the corresponding log identifiers proposed by Kumar at el.[21]. This method improve the frequency of the search and leaks the data through hidden tokens. To overcome the problems in previous method introduce the anonymization models have been developed for search log release. Hong et al. [17] and Liu at al.[23] anonymized search logs based on k-anonymization which is not accurate as differential privacy. Xiong at el. [15] presents the query log analysis applications and various granularities of releasing log information and their associated privacy threats. Korolova et al. [20] release first applied the accurate privacy notion to release the search log based on differential privacy by adding Laplace noise. To add the Laplace noise to the counts of selected queries and urls is straightforward directly maximize the output utility with optimization models. Publish the frequent keywords, queries and clicks in search logs and comparison for two relaxations of â‚ ¬-differential privacy. This paper works related to framework for collecting, storing, and mining search logs in a distributed manner. Differential Privacy Dwork at al. [7,8] propose the definition of differential privacy. A randomized algorithm is differential private if for any pair of neighboring inputs, the probability of generating the same output. This means that two data sets are close to each other, a differential privacy algorithm behave same on the two data sets. This process provide sufficient privacy protection for user data. And also introduce the data publishing techniques which ensure â‚ ¬-differential privacy while providing accurate result. Search queries contain sensitive information it can lead to re-identification, approaches include query results, user-id to prevent re-identification of individuals from the search queries. This approach differs from the above it interact access framework that does not directly depend on anonymization for privacy, it differs from the semantic policies and differential privacy.

Abandoning Satan Essay -- Essays Papers

Abandoning Satan In Mary Shelly’s Frankenstein, the author employ’s several different themes to suggest a tone of tragedy. Those include abandonment, tragic flaw, and the punishment exceeds the crime. The two main characters, Victor Frankenstein and his monster, are deemed as tragic heroes in Shelly’s novel. Webster defines a hero as â€Å"a person noted for feats of courage or nobility of purpose, especially one who has risked or sacrificed his or her life.† Frankenstein and his monster each have their own levels of tragedy. Shelly also supplies each character with flaws and imperfections. The punishments for creating the monster are greatly harsher than the crime of creating it. Abandonment is the first main theme in the novel. Abandonment is defined as â€Å"to give up completely and to desert†(Webster 1). Both Frankenstein and his creation go through several different episodes of abandonment. Frankenstein abandons his family, his creation, and his homeland. The monster abandons his non-evil state of mind, and then society. Young Victor abandons his monster because of its wretchedness. What began as a man ends up a mockery, and a â€Å"hideous being of gigantic structure†(Tropp 62). Victor barely even thinks twice about leaving his creation. The shear ugliness of it took over all thought of whether it could be good or evil or if it needed anything. The monster had â€Å"no father [to watch his] infant days† and, â€Å"no mother to bless [him] with smiles†(87). The monster was a â€Å"poor, helpless, miserable wretch,† with no one to turn to (72). When the creation woke up Victor instantly left the building. T he creator never saw his creation after that until he was detained by it. The creation was left to â€Å"struggle with a child’s blindness, added to a student’s thirst for knowledge† (23). Frankenstein’s next episode of abandonment tears him away from his family. Victor leaves home to go study at college. In the mean time his family and his beloved Elizabeth got left out of his priorities. He wished to exert â€Å"his own selfhood† over others (Walling 45). Frankenstein, â€Å"so deeply engraved in [his] occupation,† never ceased to think about his family. He thought only of himself and how to command the powers of life as he worked so diligently on his creation and studies. He misses seven years of his family’s life in consequence to his actions. ... ...to be destroyed by it (Tropp 56). Frankenstein shows to depart from â€Å" his dream of becoming godlike in direct proportion to his failure to love† his family and his work (Walling 45). The monster has flaws man cannot have or posses. The monster is demonic and Satan-like. He is the â€Å"monstrous double of Lucifer† (Tropp 68). The monster turned from archangel to arch destroyer. â€Å"In Paradise lost, after the meeting a Pandemonium, Satan decides to fly to earth and inspect gods latest creation. Taking the form of a cormorant, he perches on a tree in Eden and secretly observes Adam and Eve in the garden. After the monster has left the shepherd’s hut, traveled to a village, and been driven out in a hail of stones, it hides in a hovel where it can secretly observe the lines of a noble family reduced to poverty† (Tropp 72-73). This passage tells how the life of Satan and the monster are parallel. When the monster â€Å"reflected that they had spurned and deserted me anger returned† (101). Satan feels the same type of torment as he spies on Adam and Eve. The interplay of Frankenstein/Monster is somewhat like the relationship between Lucifer/Satan.

Hoe reading report Essay

Between the devil and the deep sea. To choose between two equally bad alternatives in a serious dilemma. Where there’s a will there’s a way When a person really wants to do something, he will find a way of doing it. A burnt child dreads fire. A bad experience or a horrifying incident may scar one’s attitude or thinking for a lifetime. First come, first served. The first in line will be attended to first. A friend in need is a friend indeed. A friend who helps when one is in trouble is a real friend. Discretion is the better part of valor. If you say discretion is the better part of valor, you mean that avoiding a dangerous or unpleasant situation is sometimes the most sensible thing to do. A hungry man is an angry man| | A person who does not get what he wants or needs is a frustrated person and will be easily provoked to rage.Empty vessels make the most noise| | Those people who have a little knowledge usually talk the most and make the greatest fuss. A man is as old as he feels. A person’s age is immaterial – it is only when he thinks and feels that he is ageing that he actually becomes old. Great talkers are little doers   Those people who talk a lot and are always teaching others usually do not do much work. Poems A Little Daughter By: Miroslava Odalovic She drew Mother and father Brother and sister And a rainbow She drew A tree and a root A stone and a brook†¦ [continues]

The Violation Of World War Three - 1255 Words

Sentences 51-100 Given the current situation of world politics, the onset of World War Three is not totally unlikely. Senator John Mccain was recently diagnosed with cancer. The Southeastern United States and Puerto Rico are filled with residual ocean water and trash from the series of hurricanes that recently hit the area. Boys at a school in the UK protested their school’s uniform by wearing skirts to school this last summer. I tried to retain the information I saw on the news because I knew we would talk about it in class. News in both entertainment and politics can be ephemeral, but both can have effects that influence the way we live for years. Both Donald Trump and Kim Jong Un having access to nuclear weapons makes me uneasy. Donald†¦show more content†¦The perpetual cycle of America’s history with hate groups never ceases to amaze and appall me. The topic of gun control has come up in many debates as we all ponder and mourn over what happened in Las Vegas this past week. The Boy and Girl Scout programs are in peril of being integrated or completely abolished. Donald Trump talked a lot about reviving the economy during the 2016 presidential race. The election of Donald Trump into office profoundly impacted America, his election and inauguration sparked the biggest protest of a new president ever; the country seems more divided now than ever. I feel that teachers should not share their political ideologies with their students because if a student has opposing political views, they often find themselves resenting that teacher and as a result putting less effort into the class then they normally would. Popcorn is one of my very favorite foods, and walking into a movie theater and smelling the pungent odor of buttery popcorn is arguably the best part of seeing a movie. My love for movies, however, has predated my love for popcorn, and I’m always excited to see what’s coming out next. 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