diff --git a/app.py b/app.py
index c36232f..fd3489b 100755
--- a/app.py
+++ b/app.py
@@ -157,4 +157,4 @@ def dcard_dev():
 
 
 if __name__ == "__main__":
-    app.run(debug=False, port=4980, host='0.0.0.0', threaded=True)
+    app.run(debug=False, port=4980, host='0.0.0.0', threaded=False)
diff --git a/static/css/main.css b/static/css/main.css
index ebde5f4..3480344 100755
--- a/static/css/main.css
+++ b/static/css/main.css
@@ -70,6 +70,32 @@ html {
     box-shadow: 0px 5px 20px rgba(0, 0, 0, .3);
 }
 
+#idfEditor {
+    display: block;
+    position: fixed;
+    background-color: #FFF;
+    left: 50%;
+    top: 50%;
+    transform: translate(-50%, -50%);
+    width: 653px;
+    height: 600px;
+    border: lightgray;
+    border-width: 1px;
+    border-style: solid;
+    border-radius: 20px;
+    padding: 26px;
+    z-index: 99;
+    box-shadow: 0px 5px 20px rgba(0, 0, 0, .3);
+}
+
+#ieTableContainer {
+    position: relative;
+    height: 77%;
+    overflow: auto;
+    overflow-y: auto;
+    transition-duration: 0.5s;
+}
+
 #sweContainer {
     position: relative;
     height: 77%;
diff --git a/static/js/dcard.js b/static/js/dcard.js
index 9be574c..836ebab 100644
--- a/static/js/dcard.js
+++ b/static/js/dcard.js
@@ -16,7 +16,28 @@ function init() {
         })
     })
     changeData(1)
-    return
+    $('#idfEditorLayer').click(function(e) {
+        if ($('#idfEditorLayer').is(e.target)) {
+            hideIdfEditor()
+        }
+    })
+}
+
+function scrollIdfList() {
+    let targetWord = $('#idfTarget').val()
+    let wordList = $("#ieContainer").find("tr").slice(1).map((_, a) => { return $($(a).find("td")[0]).html() }).get()
+    console.log({ "targetWord": targetWord, 'list': wordList })
+    if (targetWord != '') {
+        if (wordList.indexOf(targetWord) >= 0) {
+
+        } else {
+            wordList.push(targetWord)
+            $('#ieContainer').find('tbody').append($('<tr>').attr('class', 'w3-display-container').append($('<td>').attr('style', 'vertical-align: middle;').append(targetWord)).append($('<td>').attr('class', 'w3-right-align').attr('style', 'vertical-align: middle;').append($('<input>').attr('type', 'number').val(Object.keys(idfTable).indexOf(targetWord) < 0 ? 0 : idfTable[targetWord]))))
+        }
+        console.log($($('#ieContainer').children('tbody').find('tr')[[wordList.indexOf(targetWord)]]).position())
+        $("#ieTableContainer").scrollTop($($('#ieContainer').children('tbody').find('tr')[[wordList.indexOf(targetWord)]]).position().top - 50)
+    }
+    $('#newStopWord').val('')
 }
 
 function changeData(num) {
@@ -44,6 +65,85 @@ function changeData(num) {
     }
 }
 
+function showIdfEditor() {
+    $(window).unbind('keydown')
+    $(window).keydown(function(event) {
+        if (event.keyCode == 13) {
+            scrollIdfList()
+        }
+    })
+    $('#ieContainer').empty().append(
+            $('<thead>').append($('<tr>')
+                .append($('<th>')
+                    .attr('style', 'position: sticky; top: 0; background: white;')
+                    .append('單詞'))
+                .append($('<th>'))
+                .append($('<th>').attr('class', 'w3-right-align')
+                    .attr('style', 'position: sticky; top: 0; background: white;')
+                    .append('單詞頻率')
+                )
+            )
+        )
+        .append($('<tbody>'))
+    for (word of Object.entries(idfTable).sort((a, b) => { return (b[1] - a[1]) }).map((a) => { return a[0] }).slice(0, 1000)) {
+        $('#ieContainer').find('tbody')
+            .append($('<tr>')
+                .attr('class', 'w3-display-container')
+                .append($('<td>')
+                    .attr('style', 'vertical-align: middle;')
+                    .append(word))
+                .append($('<td>')
+                    .attr('class', 'w3-right-align')
+                    .append($('<button>')
+                        .attr('class', 'general-button')
+                        .html('設為最小')
+                        .click(function() {
+                            $(this)
+                                .parent()
+                                .parent()
+                                .find('input').val(0)
+                        })
+                    )
+                    .append($('<button>')
+                        .attr('class', 'general-button')
+                        .html('設為最大')
+                        .click(function() {
+                            $(this)
+                                .parent()
+                                .parent()
+                                .find('input').val(Object.values(idfTableOrig).reduce((a, b) => {
+                                    return a > b ? a : b
+                                }))
+                        })
+                    )
+                    .append($('<button>')
+                        .attr('class', 'general-button')
+                        .html('重設')
+                        .click(function() {
+                            var _word = $($(this)
+                                .parent()
+                                .parent()
+                                .find('td')[0]).html()
+                            $(this)
+                                .parent()
+                                .parent()
+                                .find('input').val(idfTableOrig[_word])
+                        })
+                    )
+                )
+                .append($('<td>')
+                    .attr('class', 'w3-right-align')
+                    .attr('style', 'vertical-align: middle;')
+                    .append($('<input>')
+                        .attr('type', 'number')
+                        .val(idfTable[word])
+                    )
+                )
+            )
+    }
+    $('#idfEditorLayer').removeClass('hidden')
+}
+
 function destroyCurrentGraph() {
     d3.selectAll('#vis').remove()
     d3.select('#graph').append('div').attr('id', 'vis')
diff --git a/static/js/loadIdfTable.js b/static/js/loadIdfTable.js
index 0228539..6783e11 100644
--- a/static/js/loadIdfTable.js
+++ b/static/js/loadIdfTable.js
@@ -1,8 +1,11 @@
 var idfTable
+var idfTableOrig
+var idfBase = 1000
 $.ajax({
     url: '/resource/idfTable.json',
     async: false,
     success: (data) => {
         idfTable = data
+        idfTableOrig = JSON.parse(JSON.stringify(data))
     }
 })
\ No newline at end of file
diff --git a/static/js/ptt.js b/static/js/ptt.js
index 87758d9..7e34125 100755
--- a/static/js/ptt.js
+++ b/static/js/ptt.js
@@ -71,6 +71,11 @@ function init() {
             hideStopWordEditor()
         }
     })
+    $('#idfEditorLayer').click(function(e) {
+        if ($('#idfEditorLayer').is(e.target)) {
+            hideIdfEditor()
+        }
+    })
 }
 
 function clearStopWord() {
@@ -102,6 +107,23 @@ function addStopWord() {
     $('#newStopWord').val('')
 }
 
+function scrollIdfList() {
+    let targetWord = $('#idfTarget').val()
+    let wordList = $("#ieContainer").find("tr").slice(1).map((_, a) => { return $($(a).find("td")[0]).html() }).get()
+    console.log({ "targetWord": targetWord, 'list': wordList })
+    if (targetWord != '') {
+        if (wordList.indexOf(targetWord) >= 0) {
+
+        } else {
+            wordList.push(targetWord)
+            $('#ieContainer').find('tbody').append($('<tr>').attr('class', 'w3-display-container').append($('<td>').attr('style', 'vertical-align: middle;').append(targetWord)).append($('<td>').attr('class', 'w3-right-align').attr('style', 'vertical-align: middle;').append($('<input>').attr('type', 'number').val(Object.keys(idfTable).indexOf(targetWord) < 0 ? 0 : idfTable[targetWord]))))
+        }
+        console.log($($('#ieContainer').children('tbody').find('tr')[[wordList.indexOf(targetWord)]]).position())
+        $("#ieTableContainer").scrollTop($($('#ieContainer').children('tbody').find('tr')[[wordList.indexOf(targetWord)]]).position().top - 50)
+    }
+    $('#newStopWord').val('')
+}
+
 function showStopwordEditor() {
     $(window).unbind('keydown')
     $(window).keydown(function(event) {
@@ -111,7 +133,7 @@ function showStopwordEditor() {
     })
     $('#sweContainer').empty()
     for (word of stopwords) {
-        $('#sweContainer').append($('<li>').attr('class', 'w3-display-container').append($('<span>').append(word)).append($('<span>').attr('class', 'w3-button w3-hover-red w3-transparent w3-display-right').click(function(e) {
+        $('#sweContainer').append($('<li>').append($('<span>').append(word)).append($('<span>').attr('class', 'w3-button w3-hover-red w3-transparent w3-display-right').click(function(e) {
             var index = $(this).parent().index()
             console.log(stopwords[index])
             stopwords.splice(index, 1)
@@ -122,6 +144,85 @@ function showStopwordEditor() {
     $('#stopWordEditorLayer').removeClass('hidden')
 }
 
+function showIdfEditor() {
+    $(window).unbind('keydown')
+    $(window).keydown(function(event) {
+        if (event.keyCode == 13) {
+            scrollIdfList()
+        }
+    })
+    $('#ieContainer').empty().append(
+            $('<thead>').append($('<tr>')
+                .append($('<th>')
+                    .attr('style', 'position: sticky; top: 0; background: white;')
+                    .append('單詞'))
+                .append($('<th>'))
+                .append($('<th>').attr('class', 'w3-right-align')
+                    .attr('style', 'position: sticky; top: 0; background: white;')
+                    .append('單詞頻率')
+                )
+            )
+        )
+        .append($('<tbody>'))
+    for (word of Object.entries(idfTable).sort((a, b) => { return (b[1] - a[1]) }).map((a) => { return a[0] }).slice(0, 1000)) {
+        $('#ieContainer').find('tbody')
+            .append($('<tr>')
+                .attr('class', 'w3-display-container')
+                .append($('<td>')
+                    .attr('style', 'vertical-align: middle;')
+                    .append(word))
+                .append($('<td>')
+                    .attr('class', 'w3-right-align')
+                    .append($('<button>')
+                        .attr('class', 'general-button')
+                        .html('設為最小')
+                        .click(function() {
+                            $(this)
+                                .parent()
+                                .parent()
+                                .find('input').val(0)
+                        })
+                    )
+                    .append($('<button>')
+                        .attr('class', 'general-button')
+                        .html('設為最大')
+                        .click(function() {
+                            $(this)
+                                .parent()
+                                .parent()
+                                .find('input').val(Object.values(idfTableOrig).reduce((a, b) => {
+                                    return a > b ? a : b
+                                }))
+                        })
+                    )
+                    .append($('<button>')
+                        .attr('class', 'general-button')
+                        .html('重設')
+                        .click(function() {
+                            var _word = $($(this)
+                                .parent()
+                                .parent()
+                                .find('td')[0]).html()
+                            $(this)
+                                .parent()
+                                .parent()
+                                .find('input').val(idfTableOrig[_word])
+                        })
+                    )
+                )
+                .append($('<td>')
+                    .attr('class', 'w3-right-align')
+                    .attr('style', 'vertical-align: middle;')
+                    .append($('<input>')
+                        .attr('type', 'number')
+                        .val(idfTable[word])
+                    )
+                )
+            )
+    }
+    $('#idfEditorLayer').removeClass('hidden')
+}
+
 function hideStopWordEditor() {
     $(window).unbind('keydown')
     $(window).keydown(function(event) {
@@ -133,11 +234,40 @@ function hideStopWordEditor() {
     $('#stopWordEditorLayer').addClass('hidden')
 }
 
+function hideIdfEditor() {
+    $(window).unbind('keydown')
+    $(window).keydown(function(event) {
+        if (event.keyCode == 13) {
+            event.preventDefault()
+            sendRequest()
+        }
+    })
+    $('#idfEditorLayer').addClass('hidden')
+}
+
+function updateIdfTable() {
+    let wordList = $("#ieContainer").find("tr").slice(1).map((_, a) => {
+        return [
+            [$($(a).find("td")[0]).html(), $($(a).find("td")[1]).find('input').val()]
+        ]
+    }).get()
+    console.log(wordList)
+    for (p of wordList) {
+        idfTable[p[0]] = p[1]
+    }
+    console.log(idfTable)
+}
+
 function downloadStopWord() {
     stopWordString = stopwords.join('\n')
     download(stopWordString, 'stopwords.txt', 'text/plain')
 }
 
+function downloadIdfTable() {
+    let idfTableJson = JSON.stringify(idfTable, null, "\t")
+    download(idfTableJson, 'idfTable.json', 'text/plain')
+}
+
 
 function hidePopup() {
     $('#infoWindowLayer').toggleClass('hidden')
diff --git a/static/js/pttPush.js b/static/js/pttPush.js
index fd3046c..65c4b72 100644
--- a/static/js/pttPush.js
+++ b/static/js/pttPush.js
@@ -58,6 +58,11 @@ function init() {
             hideStopWordEditor()
         }
     })
+    $('#idfEditorLayer').click(function(e) {
+        if ($('#idfEditorLayer').is(e.target)) {
+            hideIdfEditor()
+        }
+    })
 }
 
 function clearStopWord() {
@@ -65,6 +70,23 @@ function clearStopWord() {
     $('#sweContainer').html('')
 }
 
+function scrollIdfList() {
+    let targetWord = $('#idfTarget').val()
+    let wordList = $("#ieContainer").find("tr").slice(1).map((_, a) => { return $($(a).find("td")[0]).html() }).get()
+    console.log({ "targetWord": targetWord, 'list': wordList })
+    if (targetWord != '') {
+        if (wordList.indexOf(targetWord) >= 0) {
+
+        } else {
+            wordList.push(targetWord)
+            $('#ieContainer').find('tbody').append($('<tr>').attr('class', 'w3-display-container').append($('<td>').attr('style', 'vertical-align: middle;').append(targetWord)).append($('<td>').attr('class', 'w3-right-align').attr('style', 'vertical-align: middle;').append($('<input>').attr('type', 'number').val(Object.keys(idfTable).indexOf(targetWord) < 0 ? 0 : idfTable[targetWord]))))
+        }
+        console.log($($('#ieContainer').children('tbody').find('tr')[[wordList.indexOf(targetWord)]]).position())
+        $("#ieTableContainer").scrollTop($($('#ieContainer').children('tbody').find('tr')[[wordList.indexOf(targetWord)]]).position().top - 50)
+    }
+    $('#newStopWord').val('')
+}
+
 function addStopWord() {
     newswRaw = $('#newStopWord').val()
     newswList = newswRaw.split(' ')
@@ -89,6 +111,85 @@ function addStopWord() {
     $('#newStopWord').val('')
 }
 
+function showIdfEditor() {
+    $(window).unbind('keydown')
+    $(window).keydown(function(event) {
+        if (event.keyCode == 13) {
+            scrollIdfList()
+        }
+    })
+    $('#ieContainer').empty().append(
+            $('<thead>').append($('<tr>')
+                .append($('<th>')
+                    .attr('style', 'position: sticky; top: 0; background: white;')
+                    .append('單詞'))
+                .append($('<th>'))
+                .append($('<th>').attr('class', 'w3-right-align')
+                    .attr('style', 'position: sticky; top: 0; background: white;')
+                    .append('單詞頻率')
+                )
+            )
+        )
+        .append($('<tbody>'))
+    for (word of Object.entries(idfTable).sort((a, b) => { return (b[1] - a[1]) }).map((a) => { return a[0] }).slice(0, 1000)) {
+        $('#ieContainer').find('tbody')
+            .append($('<tr>')
+                .attr('class', 'w3-display-container')
+                .append($('<td>')
+                    .attr('style', 'vertical-align: middle;')
+                    .append(word))
+                .append($('<td>')
+                    .attr('class', 'w3-right-align')
+                    .append($('<button>')
+                        .attr('class', 'general-button')
+                        .html('設為最小')
+                        .click(function() {
+                            $(this)
+                                .parent()
+                                .parent()
+                                .find('input').val(0)
+                        })
+                    )
+                    .append($('<button>')
+                        .attr('class', 'general-button')
+                        .html('設為最大')
+                        .click(function() {
+                            $(this)
+                                .parent()
+                                .parent()
+                                .find('input').val(Object.values(idfTableOrig).reduce((a, b) => {
+                                    return a > b ? a : b
+                                }))
+                        })
+                    )
+                    .append($('<button>')
+                        .attr('class', 'general-button')
+                        .html('重設')
+                        .click(function() {
+                            var _word = $($(this)
+                                .parent()
+                                .parent()
+                                .find('td')[0]).html()
+                            $(this)
+                                .parent()
+                                .parent()
+                                .find('input').val(idfTableOrig[_word])
+                        })
+                    )
+                )
+                .append($('<td>')
+                    .attr('class', 'w3-right-align')
+                    .attr('style', 'vertical-align: middle;')
+                    .append($('<input>')
+                        .attr('type', 'number')
+                        .val(idfTable[word])
+                    )
+                )
+            )
+    }
+    $('#idfEditorLayer').removeClass('hidden')
+}
+
 function showStopwordEditor() {
     console.log(stopwords)
     $(window).unbind('keydown')
diff --git a/static/node_modules/sententree/dist/sententree-standalone.js b/static/node_modules/sententree/dist/sententree-standalone.js
index 212cc4e..ad403e4 100755
--- a/static/node_modules/sententree/dist/sententree-standalone.js
+++ b/static/node_modules/sententree/dist/sententree-standalone.js
@@ -19143,9 +19143,12 @@
 
                         words.forEach(function(w) {
                             var value = fdist[w];
-                            if (value < maxSupport && (value / Math.max(idfTable[itemset[w]], 1000)) * 1000 > maxc) {
+                            //if (value < maxSupport && (value / Math.max(idfTable[itemset[w]], idfBase)) * idfBase > maxc) {
+                            //if (value < maxSupport && value > maxc && (stopwords.indexOf(itemset[w]) < 0 || isNotRoot)) {
+                            if (value < maxSupport && value > maxc && stopwords.indexOf(itemset[w]) < 0) {
                                 maxw = +w;
-                                maxc = (value / Math.max(idfTable[itemset[w]], 1000)) * 1000;
+                                //maxc = (value / Math.max(idfTable[itemset[w]], idfBase)) * idfBase
+                                maxc = value
                             }
                         });
                         console.log(itemset)
diff --git a/templates/dcard.html b/templates/dcard.html
index fd39108..0935bd0 100644
--- a/templates/dcard.html
+++ b/templates/dcard.html
@@ -36,6 +36,23 @@
             </div>
         </div>
     </div>
+    <div id="idfEditorLayer" class="info hidden">
+        <div id="idfEditor">
+            <h4 id="ieTitle" style="margin:10px; display: inline;">編輯停用詞</h4>
+            <div id='ieTableContainer'>
+                <table id="ieContainer" class="w3-table w3-bordered w3-hoverable" style="margin-bottom: 10px;"></table>
+            </div>
+            <div>
+                <input class="w3-input w3-border" style="width: 85%; display: inline;" type="text" id="idfTarget" placeholder="輸入單詞">
+                <button class="general-button w3-right" type="button" id="confirm" style="background-color: #379; margin-left: 8px;" onclick="scrollIdfList()">移動</button>
+            </div>
+            <div id="ieButtons" style="margin: 20px 0px;">
+                <button class="general-button" type="button" id="confirm" style="background-color: #379; margin: 0px 10px" onclick="updateIdfTable(); hideIdfEditor(); destroyCurrentGraph(); buildSentetree()">確認</button>
+                <button class="general-button" type="button" id="confirm" style="background-color: #379; margin: 0px 10px" onclick="downloadIdfTable()">匯出頻率表</button>
+                <button class="general-button w3-right" type="button" id="confirm" style="background-color: #379; margin: 0px 20px" onclick="hideIdfEditor()">返回</button>
+            </div>
+        </div>
+    </div>
     <div id="titleListLayer" class="info hidden">
         <div id="titleList">
             <h2 id="titleListKeyword" style="margin:10px; display: inline;"></h2>
diff --git a/templates/ptt.html b/templates/ptt.html
index 0d9911b..23840cb 100755
--- a/templates/ptt.html
+++ b/templates/ptt.html
@@ -34,6 +34,23 @@
             </div>
         </div>
     </div>
+    <div id="idfEditorLayer" class="info hidden">
+        <div id="idfEditor">
+            <h4 id="ieTitle" style="margin:10px; display: inline;">編輯停用詞</h4>
+            <div id='ieTableContainer'>
+                <table id="ieContainer" class="w3-table w3-bordered w3-hoverable" style="margin-bottom: 10px;"></table>
+            </div>
+            <div>
+                <input class="w3-input w3-border" style="width: 85%; display: inline;" type="text" id="idfTarget" placeholder="輸入單詞">
+                <button class="general-button w3-right" type="button" id="confirm" style="background-color: #379; margin-left: 8px;" onclick="scrollIdfList()">移動</button>
+            </div>
+            <div id="ieButtons" style="margin: 20px 0px;">
+                <button class="general-button" type="button" id="confirm" style="background-color: #379; margin: 0px 10px" onclick="updateIdfTable(); hideIdfEditor(); destroyCurrentGraph(); buildSentetree()">確認</button>
+                <button class="general-button" type="button" id="confirm" style="background-color: #379; margin: 0px 10px" onclick="downloadIdfTable()">匯出頻率表</button>
+                <button class="general-button w3-right" type="button" id="confirm" style="background-color: #379; margin: 0px 20px" onclick="hideIdfEditor()">返回</button>
+            </div>
+        </div>
+    </div>
     <div id="titleListLayer" class="info hidden">
         <div id="titleList">
             <h2 id="titleListKeyword" style="margin:10px; display: inline;"></h2>
@@ -63,7 +80,7 @@
                 <input id="keywordBox" type="text" name="message" placeholder="輸入關鍵詞">
                 <button class="general-button" type="button" id="sendButton" onclick="sendRequest()">搜尋關鍵字</button>
                 <button class="general-button" type="button" id="resetButton" onclick="document.getElementById('keywordBox').value=''">清除關鍵字</button>
-                <button class="general-button" type="button" id="editSWButton" onclick="showStopwordEditor()">編輯停用詞</button>
+                <button class="general-button" type="button" id="editSWButton" onclick="showIdfEditor()">編輯停用詞</button>
             </form>
         </div>
         <div id="advancedArea">
diff --git a/templates/ptt_push.html b/templates/ptt_push.html
index 62bd485..94de469 100644
--- a/templates/ptt_push.html
+++ b/templates/ptt_push.html
@@ -35,6 +35,23 @@
             </div>
         </div>
     </div>
+    <div id="idfEditorLayer" class="info hidden">
+        <div id="idfEditor">
+            <h4 id="ieTitle" style="margin:10px; display: inline;">編輯停用詞</h4>
+            <div id='ieTableContainer'>
+                <table id="ieContainer" class="w3-table w3-bordered w3-hoverable" style="margin-bottom: 10px;"></table>
+            </div>
+            <div>
+                <input class="w3-input w3-border" style="width: 85%; display: inline;" type="text" id="idfTarget" placeholder="輸入單詞">
+                <button class="general-button w3-right" type="button" id="confirm" style="background-color: #379; margin-left: 8px;" onclick="scrollIdfList()">移動</button>
+            </div>
+            <div id="ieButtons" style="margin: 20px 0px;">
+                <button class="general-button" type="button" id="confirm" style="background-color: #379; margin: 0px 10px" onclick="updateIdfTable(); hideIdfEditor(); destroyCurrentGraph(); buildSentetree()">確認</button>
+                <button class="general-button" type="button" id="confirm" style="background-color: #379; margin: 0px 10px" onclick="downloadIdfTable()">匯出頻率表</button>
+                <button class="general-button w3-right" type="button" id="confirm" style="background-color: #379; margin: 0px 20px" onclick="hideIdfEditor()">返回</button>
+            </div>
+        </div>
+    </div>
     <div id="titleListLayer" class="info hidden">
         <div id="titleList">
             <h2 id="titleListKeyword" style="margin:10px; display: inline;"></h2>