Nitin Jindal - The University of Illinois at Chicago

{{textjustify{\nI am a Ph.D. student in [[Department of Computer Science|http://www.cs.uic.edu]] at the [[University of Illinois at Chicago (UIC)|http://www.uic.edu]]. My advisor is [[Bing Liu|http://www.cs.uic.edu/~liub]]. I joined UIC in Fall 2005. Before joining UIC, I graduated from [[Indian Institute of Technology Delhi (IITD)|http://www.iitd.ernet.in/]] in 2005 with a Bachelors in [[Computer Science and Engineering|http://www.cse.iitd.ernet.in/]].\n\n''Research Interests''\nI am now working on problems related to data and text mining, natural language processing and web mining.\n}}}

I am the Treasurer of Computer Science Graduate Students Association (CSGSA) at UIC. 2006-2007.\n\nIf you are interested in participating in various CSGSA activities or would simply like to know more about CSGSA, please check the links below or send me an email.\n\n\n!!!Links\n*[[CSGSA website|http://www.cs.uic.edu/~csgsa/]] (old one, new website coming soon)\n*[[Some information on CSGSA officers, committees and activities|http://acm.cs.uic.edu/~njindal/csgsa]]\n\n!!!Fun Links\n*[[Indian online book store|http://www.flipkart.com]] (A cool start up by my friends from college)\n\n

Type the text for 'CV'

Email: nitin.jindal AT gmail DOT com\n\nDepartment of Computer Science\nUniversity of Illinois at Chicago\n851 S. Morgan (M/C 152)\nChicago IL, 60607-7053

Last updated on February 2008. [ [[PDF|docs/Nitin_Jindal.pdf]] ] [ [[DOC|docs/Nitin_Jindal.doc]] ]\n''Please send email for the latest version.''

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[[Home]]

Anyone who has lost track of time when using a computer knows the propensity to dream, the urge to make dreams come true and the tendency to miss lunch. - ''Tim Berners Lee''

[[About Me]]\n[[Projects]]\n[[Publications]]\n[[Activities & Links]]\n[[Contact]]\n[[Curriculum Vitae]]

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{{textjustify{\n!!!Opinion Spam and Analysis\n>It is now quite common for people to read opinions on the Web for many purposes. For example, if one wants to buy a product and sees that the reviews of the product are mostly positive, one is very likely to buy the product. If the reviews are mostly negative, one is very likely to choose another product. Positive opinions can result in significant financial gains and/or fames for organizations and individuals. This gives good incentives for review/opinion spam.\n>\n>There are generally three types of spam revies: \n>''Type 1 (false opinions)'': Those that deliberately mislead readers or automated opinion mining systems by giving undeserving positive opinions to some target objects in order to promote the objects and/or by giving unjust or malicious negative reviews to some other objects in order to damage their reputation. \n>''Type 2 (reviews on brands only)'': Those that do not review specific products but only the brands, the manufacturers or the seller of the products. \n>''Type 3 (non-reviews)'': Those that are non-reviews, which have two main sub-types: (1) advertisements and (2) other irrelevant reviews containing no opinions (e.g., questions, answers, and random texts).\n>\n>The problem can be considered as a supervised learning problem with two classes: spam and non-spam. However, manual labeling of data set is extremely difficult for model building or for evaluation purposes. Spams of type 1 are virtually impossible to identify by human analysis.\n\n!!!Comparative Sentence and Relation Extraction\n>A comparative sentence usually expresses an ordering relation between two sets of entities with respect to some common features. For example, the comparative sentence "Canon's optics are better than those of Sony and Nikon" expresses the comparative relation: (better, {optics}, {Canon}, {Sony, Nikon}). Comparative sentences use different language constructs from typical opinion sentences (e.g., "Cannon's optic is great").\n>\n>''Abstraction of the problem'': Extraction of comparative relations, i.e., "who is better than who on what". Again, the formal definitions can be found in the book [[Web Data Mining|http://www.cs.uic.edu/~liub/WebMiningBook.html]]. The main mining tasks are:\n>\n>#identify comparative sentences from texts, e.g., reviews, forum or blog postings, and news articles.\n>#extract comparative relations from the identified comparative sentences. \n>\n>This problem has many applications. For example, a product manufacturer may want to know customer opinions of its products in comparison with those of its competitors.\n>\n>''Data Set''\n>-If you are interested in the comparative sentence dataset associated with papers (Jindal and Liu 2006a) and (Jindal and Liu 2006b) below, please drop us an email.\n\n''Some other projects which I am also working on*''\n#''Webpage Template Detection''\n#''Analysis of User Behavior and Group Dynamics on Wikipedia''\n//*Please send me an email if you would like to know more about my work on these projects.//\n}}}

{{textjustify{\n!!!Conferences\n*Nitin Jindal and [[Bing Liu|http://www.cs.uic.edu/~liub/]]. ''[[Opinion Spam and Analysis|docs/wsdm08-opinion-spam.pdf]]''. //Proceedings of 1st ACM International Conference on Web Search and Data Mining//, WSDM '08. Stanford University, California 2008.\n*Nitin Jindal and [[Bing Liu|http://www.cs.uic.edu/~liub/]]. ''[[Analyzing and Detecting Review Spam|docs/icdm07-review-spam.pdf]]''. //Proceedings of 7th Annual International Conference in Data Mining//, ICDM '07. Omaha, Nebraska 2007.\n*Nitin Jindal and [[Bing Liu|http://www.cs.uic.edu/~liub/]]. ''[[Review Spam Detection|docs/www2007Poster-review-spam.pdf]]''. //Proceedings of 16th International World Wide Web conference//, WWW '07. Banff, Alberta, Canada 2007. (poster paper).\n*Nitin Jindal and [[Bing Liu|http://www.cs.uic.edu/~liub/]]. ''[[Identifying Comparative Sentences in Text Documents|docs/sigir06-comp.pdf]]''. //Proceedings of 29th Annual International ACM SIGIR Conference on Research & Development on Information Retrieval//, SIGIR '06. Seattle 2006.\n*Nitin Jindal and [[Bing Liu|http://www.cs.uic.edu/~liub/]]. ''[[Mining Comparative Sentences and Relations|docs/aaai06-comp-relation.pdf]]''. //Proceedings of 21st National Conference on Artificial Intelligence//, AAAI '06. Boston, Massachusetts 2006.\n*Nitin Jindal. ''[[Wrapper Generation for Automatic Data Extraction from Large Web Sites|docs/dnis05-wrapper-generation.pdf]]''. //Proceedings of 3rd Annual International Conference on Databases in Networked Information Systems//, DNIS '05. Aizu, Japan 2005.\n\n!!!Other Publications and Reports\n*Nitin Jindal and [[Bing Liu|http://www.cs.uic.edu/~liub/]]. ''Product Review Analysis''. Technical Report. University of Illinois at Chicago. Computer Science Department. 2007.\n*Nitin Jindal and [[S.K. Gupta|http://www.cse.iitd.ernet.in/~skg/]]. ''Privacy violation detection using malaise intention''. B.Tech. Project Report. Indian Institute of Technology Delhi. Computer Science Department. 2005\n}}}

My focus in the general area of //opinion extraction// or //opinion mining//, and feature-based opinion summarization from the user-generated content or user-generated media on the Web, e.g., reviews, forum and group discussions, and blogs. The area is also known as sentiment analysis, and is closely related to sentiment classification.\n\nI am working on amazon product reviews, template detection and

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The University of Illinois at Chicago

[[Nitin Jindal|Home]]

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margin-right:3px;\n}\n\n#sidebarOptions .button:active, #sidebarOptions .highlight {background:#F5F5F5;}\n\n*html #contentFooter { padding:0.25em 1em 0.5em 1em;}\n\n#noticeBoard {font-size: 0.9em; color:#999; position:relative;display:block;background:#fff; clear: both; margin-right:0.5em; margin-top:60px; padding:5px; border-bottom: 1px dotted #CCC; border-top: 1px dotted #CCC;}\n#mainMenu #noticeBoard a,#mainMenu #noticeBoard .tiddlyLink {display:inline;border:none;padding:5px 2px;color:#DF9153 }\n#noticeBoard a:hover {border:none;} \n\n#noticeBoard br {display:inline;}\n\n#mainMenu #noticeBoard .button{\n color: #666;\n border: 1px solid #DF9153;padding:2px;\n}\n\n#mainMenu #noticeBoard .button:hover{\n color: #fff;\n background: #DF9153;\n border-color: #DF9153;\n}\n/*}}}*/\n/***\n!!!Alignment /%==================================================%/\n***/\n/*{{{*/\n\n.textleft{text-align:left;}\n.textright{text-align:right;}\n.textcenter{text-align:center;}\n.textjustify{text-align:justify;}\n\n.floatleft{ float:left; }\n.floatright{ float:right; }\n\n.moveovermainmenu{margin-left:7px;}\n.textleftpad7{text-align:left;padding: 0em 7em 0em 7em;}\n.textindent25 {text-indent:25px;}\n.right{display:block;text-align:right; }\n.smallform{ white-space:nowrap; }\n\n.tablecenter table { border:0 !important;td.vertical-align:top;margin-left: auto; margin-right: auto; text-align:\nleft; padding:7px;}\n.tablecenterpad17 table { td.vertical-align:top;margin-left: auto; margin-right: auto; text-align:\nleft; padding:17px;}\n\n.imgfloatright{display:block;float:right;padding:0.3em;}\n.imgfloatleft{display:block;float:left;padding:0.3em;}\n.imgfloatcenter{display:block;margin-left: auto;margin-right: auto;padding:0.3em;}\n\n\n/*}}}*/

/***\n\n|Name|ToggleSideBarMacro|\n|Created by|SaqImtiaz|\n|Location|http://tw.lewcid.org/#ToggleSideBarMacro|\n|Version|1.0|\n|Requires|~TW2.x|\n!Description:\nProvides a button for toggling visibility of the SideBar. You can choose whether the SideBar should initially be hidden or displayed.\n\n!Demo\n<<toggleSideBar "Toggle Sidebar">>\n\n!Usage:\n{{{<<toggleSideBar>>}}} <<toggleSideBar>>\nadditional options:\n{{{<<toggleSideBar label tooltip show/hide>>}}} where:\nlabel = custom label for the button,\ntooltip = custom tooltip for the button,\nshow/hide = use one or the other, determines whether the sidebar is shown at first or not.\n(default is to show the sidebar)\n\nYou can add it to your tiddler toolbar, your MainMenu, or where you like really.\nIf you are using a horizontal MainMenu and want the button to be right aligned, put the following in your StyleSheet:\n{{{ .HideSideBarButton {float:right;} }}}\n\n!History\n*23-07-06: version 1.0: completely rewritten, now works with custom stylesheets too, and easier to customize start behaviour. \n*20-07-06: version 0.11\n*27-04-06: version 0.1: working.\n\n!Code\n***/\n//{{{\nconfig.macros.toggleSideBar={};\n\nconfig.macros.toggleSideBar.settings={\n styleHide : "#sidebar { display: none;}\sn"+"#contentWrapper #displayArea { margin-right: 1em;}\sn"+"",\n styleShow : " ",\n arrow1: "«",\n arrow2: "»"\n};\n\nconfig.macros.toggleSideBar.handler=function (place,macroName,params,wikifier,paramString,tiddler)\n{\n var tooltip= params[1]||'toggle sidebar';\n var mode = (params[2] && params[2]=="hide")? "hide":"show";\n var arrow = (mode == "hide")? this.settings.arrow1:this.settings.arrow2;\n var label= (params[0]&&params[0]!='.')?params[0]+" "+arrow:arrow;\n var theBtn = createTiddlyButton(place,label,tooltip,this.onToggleSideBar,"button HideSideBarButton");\n if (mode == "hide")\n { \n (document.getElementById("sidebar")).setAttribute("toggle","hide");\n setStylesheet(this.settings.styleHide,"ToggleSideBarStyles");\n }\n};\n\nconfig.macros.toggleSideBar.onToggleSideBar = function(){\n var sidebar = document.getElementById("sidebar");\n var settings = config.macros.toggleSideBar.settings;\n if (sidebar.getAttribute("toggle")=='hide')\n {\n setStylesheet(settings.styleShow,"ToggleSideBarStyles");\n sidebar.setAttribute("toggle","show");\n this.firstChild.data= (this.firstChild.data).replace(settings.arrow1,settings.arrow2);\n }\n else\n { \n setStylesheet(settings.styleHide,"ToggleSideBarStyles");\n sidebar.setAttribute("toggle","hide");\n this.firstChild.data= (this.firstChild.data).replace(settings.arrow2,settings.arrow1);\n }\n\n return false;\n}\n\nsetStylesheet(".HideSideBarButton .button {font-weight:bold; padding: 0 5px;}\sn","ToggleSideBarButtonStyles");\n\n//}}}

\n//{{{\n//This ensures that the footer sticks to the bottom of the screen when there are no tiddlers open. If that is not desirable, it can be deleted.\nfunction setFooter() {\n if (document.getElementById && document.getElementById("contentFooter") ) {\n var windowHeight=findWindowHeight();\n if (windowHeight>0) {\n var contentHeight= document.getElementById('mainMenu').offsetHeight + document.getElementById("header").offsetHeight + document.getElementById("contentFooter").offsetHeight;\n var menu= document.getElementById('mainMenu');\n if (windowHeight-(contentHeight)>=0) {\n menu.style.position='relative';\n menu.style.marginBottom=(windowHeight-(contentHeight))+'px';\n }\n else {\n menu.style.position='';\n menu.style.marginBottom='';\n }\n }\n }\n}\nwindow.onresize = function() {\n setFooter();\n}\n\nStory.prototype.refreshTiddler_footerhack=Story.prototype.refreshTiddler;\nStory.prototype.refreshTiddler = function (title,template,force)\n{ \nvar theTiddler = Story.prototype.refreshTiddler_footerhack.apply(this,arguments);\nsetFooter();\n return theTiddler;}\n\n//}}}