Re: Solr and Tag Cloud
I am also looking for the same, Is there any way to find the cloud-tag of all the documents matching a specific query. On 18 June 2011 09:42, Jamie Johnson jej2...@gmail.com wrote: Does anyone have details of how to generate a tag cloud of popular terms across an entire data set and then also across a query? -- Thanks and Regards Mohammad Shariq
Re: Caching queries.
On 6/17/2011 4:26 PM, arian487 wrote: I'm wondering if something like this is possible. Lets say I want to query 5000 objects all pertaining to a specific search and I want to return the top 100 or something and cache the rest on my solr server. The next time I get the same query or something with a new offset (lets say start from 101) does it have to do the query again or can it go to cache and get the next 100? In solrconfig.xml, you should have a query section. In that section, you can place a setting like the following: queryResultWindowSize200/queryResultWindowSize This is described in the example solrconfig.xml and here: http://wiki.apache.org/solr/SolrCaching#queryResultWindowSize Shawn
Re: Solr and Tag Cloud
One option would be to load each term into shingles field and then facet on them for the user query. Another is to use http://wiki.apache.org/solr/TermsComponent. With the first one you can load not only separate terms, but also their sequences and then experiment with the optimal shingle sequence (ngram) length. On Sat, Jun 18, 2011 at 7:12 AM, Jamie Johnson jej2...@gmail.com wrote: Does anyone have details of how to generate a tag cloud of popular terms across an entire data set and then also across a query? -- Regards, Dmitry Kan
Re: Showing facet of first N docs
Do you mean you would like to boost the facets that contain the most of the lemmas? What is the user query in this case and if possible, what is the use case (may be some other solution exists for what you are trying to achieve)? On Thu, Jun 16, 2011 at 5:23 PM, Tommaso Teofili tommaso.teof...@gmail.comwrote: Thanks Dmitry, but maybe I didn't explain correctly as I am not sure facet.offset is the right solution, I'd like not to page but to filter facets. I'll try to explain better with an example. Imagine I make a query and first 2 docs in results have both 'xyz' and 'abc' as values for field 'lemmas' while also other docs in the results have 'xyz' or 'abc' as values of field 'lemmas' then I would like to show facets coming from only the first 2 docs in the results thus having : lst name=lemmas str name=xyz2/str str name=abc2/str /lst You can imagine this like a 'give me only facets related to the most relevant docs in the results' functionality. Any idea on how to do that? Tommaso 2011/6/16 Dmitry Kan dmitry@gmail.com http://wiki.apache.org/solr/SimpleFacetParameters facet.offset This param indicates an offset into the list of constraints to allow paging. The default value is 0. This parameter can be specified on a per field basis. Dmitry On Thu, Jun 16, 2011 at 1:39 PM, Tommaso Teofili tommaso.teof...@gmail.comwrote: Hi all, Do you know if it is possible to show the facets for a particular field related only to the first N docs of the total number of results? It seems facet.limit doesn't help with it as it defines a window in the facet constraints returned. Thanks in advance, Tommaso -- Regards, Dmitry Kan -- Regards, Dmitry Kan
How do i use solr spellchecker in my search application
Hi, I want to implement spellchecker in my search application using solr. i did required changes in solr-config.xml file. and run the url http://localhost:8983/solr/spell?q=hell ultrasharspellcheck=truespellcheck.collate=truespellcheck.build=true as given in http://wiki.apache.org/solr/SpellCheckComponent. But i am really confused why i need to give q queryparameter here. as i suppose this url is used to index according to spellchecker. nayhow i got the spleechecker indexes throuth it. but while i search i dont get the result. for example here in the urel q=hell which is actually dell in index. but when i search for hell i dont get the answer. while when i run the url i got suggestion dell for hell. for searching i use the url http://localhost:8983/solr/select/?q=hellversion=2.2start=0rows=10indent=on Do i need to change the url?? Please explain me - Thanks Regards Romi -- View this message in context: http://lucene.472066.n3.nabble.com/How-do-i-use-solr-spellchecker-in-my-search-application-tp3079090p3079090.html Sent from the Solr - User mailing list archive at Nabble.com.
solr highliting feature
I want to highlight some search result value. i used solr for this. as i suppose solr provides highlighting feature. i used it i configure highlighting in solr-config.xml. i set hl=true and hl.fl=somefield at query time in my url when i run the url it gives me a xml representation of search results where i got a tag highliting. further i am parsing this xml response to show result in a jsp page. but i ma not getting how can i high lite the fields in jsp page - Thanks Regards Romi -- View this message in context: http://lucene.472066.n3.nabble.com/solr-highliting-feature-tp3079239p3079239.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: Showing facet of first N docs
Hi Tommaso I don't think you can achieve what you want using vanilla solr. Facet counts will be for the result set matching not for the top n result sets matching. However what is your use case ? Assuming its for faceted navigation showing facets for the top n result sets could be confusing to your users. As the next incremental filter applied by the user would change the relevancy focus of the user and produce another set of top n facet counts with a document set un-related to the last result set. This could be a very bad user experience producing a fluctuating facet counts (ie a filter narrowing the search could produce an increase in a facet term count - very odd) also the result set could change strangely with docs floating in and out of the result list. relevancy seems to be the answer here - if your docs are scored correctly then counting all docs in the result set for the facet counts is correct. do you need to improve relevancy? On 18 June 2011 08:23, Dmitry Kan dmitry@gmail.com wrote: Do you mean you would like to boost the facets that contain the most of the lemmas? What is the user query in this case and if possible, what is the use case (may be some other solution exists for what you are trying to achieve)? On Thu, Jun 16, 2011 at 5:23 PM, Tommaso Teofili tommaso.teof...@gmail.comwrote: Thanks Dmitry, but maybe I didn't explain correctly as I am not sure facet.offset is the right solution, I'd like not to page but to filter facets. I'll try to explain better with an example. Imagine I make a query and first 2 docs in results have both 'xyz' and 'abc' as values for field 'lemmas' while also other docs in the results have 'xyz' or 'abc' as values of field 'lemmas' then I would like to show facets coming from only the first 2 docs in the results thus having : lst name=lemmas str name=xyz2/str str name=abc2/str /lst You can imagine this like a 'give me only facets related to the most relevant docs in the results' functionality. Any idea on how to do that? Tommaso 2011/6/16 Dmitry Kan dmitry@gmail.com http://wiki.apache.org/solr/SimpleFacetParameters facet.offset This param indicates an offset into the list of constraints to allow paging. The default value is 0. This parameter can be specified on a per field basis. Dmitry On Thu, Jun 16, 2011 at 1:39 PM, Tommaso Teofili tommaso.teof...@gmail.comwrote: Hi all, Do you know if it is possible to show the facets for a particular field related only to the first N docs of the total number of results? It seems facet.limit doesn't help with it as it defines a window in the facet constraints returned. Thanks in advance, Tommaso -- Regards, Dmitry Kan -- Regards, Dmitry Kan
relevant result for query with boost factor on parameters
Hi, I am trying to achieve this use case with following expectation three fields 1. field1 2. field2 3. field3 field1 should have the max relevance field2 should have the next field3 is the last the term will be entered by end user (say* rock roll*) i want to show the results which will contain *rock and roll* both in field1 (first) i want to show the results which will contain *rock and roll* both in field 2 (first) these should be only done for a given* field3 (x...@gmail.com)* but if suppose field1 does not contain both the term *rock and roll, * *special attention *then field 2 results should take the priority (show the results which has both the terms first and then show the results with respect to boost factor or relevance) if both the fields do not contain these terms together (show as normal one with field1 having more relevance than field2) how to join the results for field3 that means for a given field3, the above results should be filtered. I am trying this one, giving satisfactory results, but not the best one, field1:(rock roll)^20 field2:(rock roll)^4 field3:x...@gmail.com i was thinking of givning filed1 field2 field3 but not working. Can you help in this regard? What other config should i consider in terms of given context ? Thanks Naveen
Why does paste get parsed into past?
Hello, Debugging query results I find that: str name=querystringpaste/str str name=parsedquerycontent:past/str Now paste and past are two different words. Why does Solr not consider that? How do I make it? -- Regards, K. Gabriele --- unchanged since 20/9/10 --- P.S. If the subject contains [LON] or the addressee acknowledges the receipt within 48 hours then I don't resend the email. subject(this) ∈ L(LON*) ∨ ∃x. (x ∈ MyInbox ∧ Acknowledges(x, this) ∧ time(x) Now + 48h) ⇒ ¬resend(I, this). If an email is sent by a sender that is not a trusted contact or the email does not contain a valid code then the email is not received. A valid code starts with a hyphen and ends with X. ∀x. x ∈ MyInbox ⇒ from(x) ∈ MySafeSenderList ∨ (∃y. y ∈ subject(x) ∧ y ∈ L(-[a-z]+[0-9]X)).
Why are not query keywords treated as a set?
q=past past 1.0 = (MATCH) sum of: * 0.5 = (MATCH) fieldWeight(content:past in 0), product of:* 1.0 = tf(termFreq(content:past)=1) 1.0 = idf(docFreq=1, maxDocs=2) 0.5 = fieldNorm(field=content, doc=0) * 0.5 = (MATCH) fieldWeight(content:past in 0), product of:* 1.0 = tf(termFreq(content:past)=1) 1.0 = idf(docFreq=1, maxDocs=2) 0.5 = fieldNorm(field=content, doc=0) Is there how I can treat the query keywords as a set? -- Regards, K. Gabriele --- unchanged since 20/9/10 --- P.S. If the subject contains [LON] or the addressee acknowledges the receipt within 48 hours then I don't resend the email. subject(this) ∈ L(LON*) ∨ ∃x. (x ∈ MyInbox ∧ Acknowledges(x, this) ∧ time(x) Now + 48h) ⇒ ¬resend(I, this). If an email is sent by a sender that is not a trusted contact or the email does not contain a valid code then the email is not received. A valid code starts with a hyphen and ends with X. ∀x. x ∈ MyInbox ⇒ from(x) ∈ MySafeSenderList ∨ (∃y. y ∈ subject(x) ∧ y ∈ L(-[a-z]+[0-9]X)).
Boost Strangeness
WONDERFUL! Just reporting back. This document is ACE http://wiki.apache.org/solr/AnalyzersTokenizersTokenFilters For explaining what the filters are and how to affect the analyzer. Erik your statement First, boosting isn't absolute played on me so I continued to investigate boosting. I found this document that ( at last ) explains the dismax logic http://www.lucidimagination.com/blog/2010/05/23/whats-a-dismax/ The reason why I was not getting the order I require was due to: A) my boost metrics were too close together. b) similar id's in a document affected the score It seems that if a partial match is made the product ( a % of the total boost ) contributes to the documents score. This meant that one type of document in the index had a higher aggregate score due to the fact it had all but one of the boosted fields ( does not have parent_id ) in it and the fields where populated with content that was *very* similar to the requested id. for example required id = b011mg62 X_id = b011mgsf Due to the partial matching and closeness of the boost ranges this type of document always aquired a higher score than another document with just one matching field ( i.e. id field ). My solution was to increase the value of the fields I wanted to *really* count id^10 parent_id^5000 brand_container_id^500 As a result even if there are similar matches in any field the id and parent_id matches should always receive a higher boost. This was also useful http://stackoverflow.com/questions/2179497/adding-date-boosting-to-complex-solr-queries Thanks for the help!
Re: Why does paste get parsed into past?
What do you have set up for stemming? François On Jun 18, 2011, at 8:00 AM, Gabriele Kahlout wrote: Hello, Debugging query results I find that: str name=querystringpaste/str str name=parsedquerycontent:past/str Now paste and past are two different words. Why does Solr not consider that? How do I make it? -- Regards, K. Gabriele --- unchanged since 20/9/10 --- P.S. If the subject contains [LON] or the addressee acknowledges the receipt within 48 hours then I don't resend the email. subject(this) ∈ L(LON*) ∨ ∃x. (x ∈ MyInbox ∧ Acknowledges(x, this) ∧ time(x) Now + 48h) ⇒ ¬resend(I, this). If an email is sent by a sender that is not a trusted contact or the email does not contain a valid code then the email is not received. A valid code starts with a hyphen and ends with X. ∀x. x ∈ MyInbox ⇒ from(x) ∈ MySafeSenderList ∨ (∃y. y ∈ subject(x) ∧ y ∈ L(-[a-z]+[0-9]X)).
merging highlights
I have a setup where I have a title and a phonetic_title, I'm using the edismax query parser and doing a weighted search across the two fields, there are cases where phonetic_title matches part of the string and title matches another, i.e. if my query was foo AND subject:bar and the fields had title: phoo bar phonetic_title: foo br (obviously making this up) I'd get back in the highlights the following phonetic_title: emfoo/em bar title: foo embar/em Is there any utility to merge these results so that the title looks like title: emfoo/em embar/em
Re: Why does paste get parsed into past?
I'm !sure where those are set, but on reflection I'd keep the default settings. My real issue is why are not query keywords treated as a set?http://mail-archives.apache.org/mod_mbox/lucene-solr-user/201106.mbox/%3CBANLkTikHunhyWc2WVTofRYU4ZW=c8oe...@mail.gmail.com%3E 2011/6/18 François Schiettecatte fschietteca...@gmail.com What do you have set up for stemming? François On Jun 18, 2011, at 8:00 AM, Gabriele Kahlout wrote: Hello, Debugging query results I find that: str name=querystringpaste/str str name=parsedquerycontent:past/str Now paste and past are two different words. Why does Solr not consider that? How do I make it? -- Regards, K. Gabriele --- unchanged since 20/9/10 --- P.S. If the subject contains [LON] or the addressee acknowledges the receipt within 48 hours then I don't resend the email. subject(this) ∈ L(LON*) ∨ ∃x. (x ∈ MyInbox ∧ Acknowledges(x, this) ∧ time(x) Now + 48h) ⇒ ¬resend(I, this). If an email is sent by a sender that is not a trusted contact or the email does not contain a valid code then the email is not received. A valid code starts with a hyphen and ends with X. ∀x. x ∈ MyInbox ⇒ from(x) ∈ MySafeSenderList ∨ (∃y. y ∈ subject(x) ∧ y ∈ L(-[a-z]+[0-9]X)). -- Regards, K. Gabriele --- unchanged since 20/9/10 --- P.S. If the subject contains [LON] or the addressee acknowledges the receipt within 48 hours then I don't resend the email. subject(this) ∈ L(LON*) ∨ ∃x. (x ∈ MyInbox ∧ Acknowledges(x, this) ∧ time(x) Now + 48h) ⇒ ¬resend(I, this). If an email is sent by a sender that is not a trusted contact or the email does not contain a valid code then the email is not received. A valid code starts with a hyphen and ends with X. ∀x. x ∈ MyInbox ⇒ from(x) ∈ MySafeSenderList ∨ (∃y. y ∈ subject(x) ∧ y ∈ L(-[a-z]+[0-9]X)).
Re: Why does paste get parsed into past?
What I meant was what stemmer are you using? Maybe it is the stemmer that is cutting the 'e'. You can check that on the field analysis solr web page. François On Jun 18, 2011, at 11:42 AM, Gabriele Kahlout wrote: I'm !sure where those are set, but on reflection I'd keep the default settings. My real issue is why are not query keywords treated as a set?http://mail-archives.apache.org/mod_mbox/lucene-solr-user/201106.mbox/%3CBANLkTikHunhyWc2WVTofRYU4ZW=c8oe...@mail.gmail.com%3E 2011/6/18 François Schiettecatte fschietteca...@gmail.com What do you have set up for stemming? François On Jun 18, 2011, at 8:00 AM, Gabriele Kahlout wrote: Hello, Debugging query results I find that: str name=querystringpaste/str str name=parsedquerycontent:past/str Now paste and past are two different words. Why does Solr not consider that? How do I make it? -- Regards, K. Gabriele --- unchanged since 20/9/10 --- P.S. If the subject contains [LON] or the addressee acknowledges the receipt within 48 hours then I don't resend the email. subject(this) ∈ L(LON*) ∨ ∃x. (x ∈ MyInbox ∧ Acknowledges(x, this) ∧ time(x) Now + 48h) ⇒ ¬resend(I, this). If an email is sent by a sender that is not a trusted contact or the email does not contain a valid code then the email is not received. A valid code starts with a hyphen and ends with X. ∀x. x ∈ MyInbox ⇒ from(x) ∈ MySafeSenderList ∨ (∃y. y ∈ subject(x) ∧ y ∈ L(-[a-z]+[0-9]X)). -- Regards, K. Gabriele --- unchanged since 20/9/10 --- P.S. If the subject contains [LON] or the addressee acknowledges the receipt within 48 hours then I don't resend the email. subject(this) ∈ L(LON*) ∨ ∃x. (x ∈ MyInbox ∧ Acknowledges(x, this) ∧ time(x) Now + 48h) ⇒ ¬resend(I, this). If an email is sent by a sender that is not a trusted contact or the email does not contain a valid code then the email is not received. A valid code starts with a hyphen and ends with X. ∀x. x ∈ MyInbox ⇒ from(x) ∈ MySafeSenderList ∨ (∃y. y ∈ subject(x) ∧ y ∈ L(-[a-z]+[0-9]X)).
Is it true that I cannot delete stored content from the index?
Hello, I've indexing with the content field stored. Now I'd like to delete all stored content, is there how to do that without re-indexing? It seems not from lucene FAQhttp://wiki.apache.org/lucene-java/LuceneFAQ#How_do_I_update_a_document_or_a_set_of_documents_that_are_already_indexed.3F : How do I update a document or a set of documents that are already indexed? There is no direct update procedure in Lucene. To update an index incrementally you must first *delete* the documents that were updated, and *then re-add*them to the index. -- Regards, K. Gabriele --- unchanged since 20/9/10 --- P.S. If the subject contains [LON] or the addressee acknowledges the receipt within 48 hours then I don't resend the email. subject(this) ∈ L(LON*) ∨ ∃x. (x ∈ MyInbox ∧ Acknowledges(x, this) ∧ time(x) Now + 48h) ⇒ ¬resend(I, this). If an email is sent by a sender that is not a trusted contact or the email does not contain a valid code then the email is not received. A valid code starts with a hyphen and ends with X. ∀x. x ∈ MyInbox ⇒ from(x) ∈ MySafeSenderList ∨ (∃y. y ∈ subject(x) ∧ y ∈ L(-[a-z]+[0-9]X)).
Re: merging highlights
Perhaps a better question is this. Looking at DefaultSolrHighlighter I'd like to make modifications so that when doing highlighting on a specific field it automatically checks to see if there is another _phonetic field available to also pull tokens from. It looks like I could do this extending the DefaultSolrHighlighter by overridding making my own doHighlightingByHighlighter which does the following: Around Line 431: TokenStream tvStream = TokenSources.getTokenStream(searcher.getIndexReader(), docId, fieldName); TokenStream tvStream_phonetic = TokenSources.getTokenStream(searcher.getIndexReader(), docId, fieldName + _phonetic); tvStream_phonetic.copyTo(tvStream); and further down doing Around Line 446 // fall back to analyzer tstream = createAnalyzerTStream(schema, fieldName, docTexts[j]); TokenStream tstream_phonetic = createAnalyzerTStream(schema, fieldName + _phonetic, docTexts[j]); tstream_phonetic.copyTo(tstream); now I'd obviously need a way to see if fieldName + _phonetic existed before making the calls to get the token streams for them (anyone have an idea how to do that?). Only problem is this would only work for the default highlighter, using fast vector highlighter I don't see a clear way to do this. Am I the only person looking to do something along these lines? On Sat, Jun 18, 2011 at 9:59 AM, Jamie Johnson jej2...@gmail.com wrote: I have a setup where I have a title and a phonetic_title, I'm using the edismax query parser and doing a weighted search across the two fields, there are cases where phonetic_title matches part of the string and title matches another, i.e. if my query was foo AND subject:bar and the fields had title: phoo bar phonetic_title: foo br (obviously making this up) I'd get back in the highlights the following phonetic_title: emfoo/em bar title: foo embar/em Is there any utility to merge these results so that the title looks like title: emfoo/em embar/em
Re: Multiple indexes
2011/6/15 Edoardo Tosca e.to...@sourcesense.com: Try to use multiple cores: http://wiki.apache.org/solr/CoreAdmin Can I do concurrent searches on multiple cores?
Re: Multiple indexes
Sure. François On Jun 18, 2011, at 2:25 PM, shacky wrote: 2011/6/15 Edoardo Tosca e.to...@sourcesense.com: Try to use multiple cores: http://wiki.apache.org/solr/CoreAdmin Can I do concurrent searches on multiple cores?
Re: Multiple indexes
Il 18 giugno 2011 20:27, François Schiettecatte fschietteca...@gmail.com ha scritto: Sure. So I can have some searches similar to JOIN on MySQL? The problem is that I need at least two tables in which search data..
Re: Multiple indexes
You would need to run two independent searches and then 'join' the results. It is best not to apply a 'sql' mindset to SOLR when it comes to (de)normalization, whereas you strive for normalization in sql, that is usually counter-productive in SOLR. For example, I am working on a project with 30+ normalized tables, but only 4 cores. Perhaps describing what you are trying to achieve would give us greater insight and thus be able to make more concrete recommendation? Cheers François On Jun 18, 2011, at 2:36 PM, shacky wrote: Il 18 giugno 2011 20:27, François Schiettecatte fschietteca...@gmail.com ha scritto: Sure. So I can have some searches similar to JOIN on MySQL? The problem is that I need at least two tables in which search data..
Optimize taking two steps and extra disk space
I've noticed something odd in Solr 3.2 when it does an optimize. One of my shards (freshly built via DIH full-import) had 37 segments, totalling 17.38GB of disk space. 13 of those segments were results of merges during initial import, the other 24 were untouched after creation. Starting at _0, the final segment before optimizing is _co. The mergefactor on the index is 35, chosen because it makes merged segments line up nicely on z boundaries. The optmization process created a _cp segment of 14.4GB, followed by a _cq segment at the final 17.27GB size, so at the peak, it took 49GB of disk space to hold the index. Is there any way to make it do the optimize in one pass? Is there a compelling reason why it does it this way? Thanks, Shawn
Re: Is it true that I cannot delete stored content from the index?
Yep, you've got to delete and re-add. Although if you have a uniqueKey defined you can just re-add that document and Solr will automatically delete the underlying document. You might have to optimize the index afterwards to get the data to really disappear since the deletion process just marks the document as deleted. Best Erick On Sat, Jun 18, 2011 at 1:20 PM, Gabriele Kahlout gabri...@mysimpatico.com wrote: Hello, I've indexing with the content field stored. Now I'd like to delete all stored content, is there how to do that without re-indexing? It seems not from lucene FAQhttp://wiki.apache.org/lucene-java/LuceneFAQ#How_do_I_update_a_document_or_a_set_of_documents_that_are_already_indexed.3F : How do I update a document or a set of documents that are already indexed? There is no direct update procedure in Lucene. To update an index incrementally you must first *delete* the documents that were updated, and *then re-add*them to the index. -- Regards, K. Gabriele --- unchanged since 20/9/10 --- P.S. If the subject contains [LON] or the addressee acknowledges the receipt within 48 hours then I don't resend the email. subject(this) ∈ L(LON*) ∨ ∃x. (x ∈ MyInbox ∧ Acknowledges(x, this) ∧ time(x) Now + 48h) ⇒ ¬resend(I, this). If an email is sent by a sender that is not a trusted contact or the email does not contain a valid code then the email is not received. A valid code starts with a hyphen and ends with X. ∀x. x ∈ MyInbox ⇒ from(x) ∈ MySafeSenderList ∨ (∃y. y ∈ subject(x) ∧ y ∈ L(-[a-z]+[0-9]X)).
Re: Is it true that I cannot delete stored content from the index?
I have define uniqueKey in my solr and Deleting the docs from solr using this uniqueKey. and then doing optimization once in a day. is this right way to delete ??? On 19 June 2011 05:14, Erick Erickson erickerick...@gmail.com wrote: Yep, you've got to delete and re-add. Although if you have a uniqueKey defined you can just re-add that document and Solr will automatically delete the underlying document. You might have to optimize the index afterwards to get the data to really disappear since the deletion process just marks the document as deleted. Best Erick On Sat, Jun 18, 2011 at 1:20 PM, Gabriele Kahlout gabri...@mysimpatico.com wrote: Hello, I've indexing with the content field stored. Now I'd like to delete all stored content, is there how to do that without re-indexing? It seems not from lucene FAQ http://wiki.apache.org/lucene-java/LuceneFAQ#How_do_I_update_a_document_or_a_set_of_documents_that_are_already_indexed.3F : How do I update a document or a set of documents that are already indexed? There is no direct update procedure in Lucene. To update an index incrementally you must first *delete* the documents that were updated, and *then re-add*them to the index. -- Regards, K. Gabriele --- unchanged since 20/9/10 --- P.S. If the subject contains [LON] or the addressee acknowledges the receipt within 48 hours then I don't resend the email. subject(this) ∈ L(LON*) ∨ ∃x. (x ∈ MyInbox ∧ Acknowledges(x, this) ∧ time(x) Now + 48h) ⇒ ¬resend(I, this). If an email is sent by a sender that is not a trusted contact or the email does not contain a valid code then the email is not received. A valid code starts with a hyphen and ends with X. ∀x. x ∈ MyInbox ⇒ from(x) ∈ MySafeSenderList ∨ (∃y. y ∈ subject(x) ∧ y ∈ L(-[a-z]+[0-9]X)). -- Thanks and Regards Mohammad Shariq
